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Posted to dev@tuscany.apache.org by Hinde Bouziane <hb...@irisa.fr> on 2008/07/03 13:22:42 UTC

Problem (urgent): component inctances creation on nodes / multiple services?

Hi all,
I'm trying to launch an application with the following distributed 
architecture/configuration (with two nodes):

**** ComponentA and ComponentActrl on Node_compA:
node_compA.composite :
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
           targetNamespace="http://sample"
           xmlns:sample="http://sample"
           name="Node_compA_comp">
    <component name="ComponentA">
        <implementation.java class="a_comp.A_Impl" />
    </component>
    <component name="ComponentActrl">
        <implementation.java class="a_comp.A_ctrl" />
        <reference name="userAtask" target="ComponentA" />
    <service name="Tmp_double">
      <interface.java interface="aSEQb.Tmp_double"/>
    </service>
    <service name="ActrlPorts">
      <interface.java interface="a_comp.ActrlPorts"/>
    </service>
    </component>
</composite>

cloud/Node_compA.composite:

<composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
        targetNamespace="http://sample/cloud"
        xmlns:s="http://sample"
        name="Node_compA">
    <component name="Node_compA">
        <t:implementation.node uri="node_compA" 
composite="s:Node_compA_comp"/>
        <service name="Node">
            <binding.sca uri="http://localhost:8200"/>
        </service>
    </component>
</composite>

**** FakeComponentA on Node_fakeA
node_fakeA.composite:
<composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
           targetNamespace="http://sample"
           xmlns:sample="http://sample"
           name="Node_fakeA_comp">
    <component name="FakeComponentA">
        <implementation.java class="fake_comp.A_fake_Impl" />
        <reference name="fakeUseA"  target="ComponentActrl/Tmp_double" />
        <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts" />
    </component>
</composite>

cloud/Node_fakeA.composite:

<composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
        targetNamespace="http://sample/cloud"
        xmlns:s="http://sample"
        name="Node_fakeA">
    <component name="Node_fakeA">
        <t:implementation.node uri="node_fakeA" 
composite="s:Node_fakeA_comp"/>
        <service name="Node">
            <binding.sca uri="http://localhost:8100"/>
        </service>
    </component>
</composite>

--------------------

A client program launches Node_fakeA, get the service 
ComponentActrl/Tmp_double. The associated interface is :

@Remotable
public interface Tmp_double {

    void set_double(double val);
    void set_void();
}

 From the client program, the set_double(..) operation is called. It 
just make a call of the same operation on ComponentActrl. But at this 
point, an error occurs.

Here is the relevant part of the Client program:

public class ApplManagerWithFakeComp {

    public static void main(String[] args) throws Exception {
  
           ....   
            // Create a fake_A node
            NodeLauncher launcher = NodeLauncher.newInstance();
            String configurationURI = 
"http://localhost:9990/node-image/Node_fakeA";
           
            SCANode2 node = launcher.createNode(configurationURI);
               
            // Start the node
            try {
                node.getClass().getMethod("start").invoke(node);
                   
            } catch (Exception e) {
                   
                System.err.println("SCA fakeCompA_node: could not be 
started");
                throw e;
            }

            System.out.println("SCA fakeCompA_node started. Test usage");
            SCAClient client = (SCAClient)node;
            Tmp_double prov_inA = client.getService(Tmp_double.class, 
"FakeComponentA/Tmp_double");
               
            if (prov_inA == null){
                System.err.println("Error: Getted service is 
null!!!!!!!!!!!!!");
            }
           
            // Do some computations
            System.out.println("test multiple task executions for three 
inputs");         
            System.out.println("set inA = 50");
            prov_inA.set_double(50);                         
/****************/
            System.out.println("set inA = 100");
            prov_inA.set_double(100);         
            System.out.println("set inA  void");
            prov_inA.set_void();
       }
}

**************************

To execute the application, I launch the domain manager, Node_compA (it 
starts normally) and then the client program. At the line marked by 
/****************/ I obtain the following trace-error:


 ant runAppl
Buildfile: build.xml

runAppl:
     [java] Jul 3, 2008 12:23:03 PM 
org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
     [java] INFO: Runtime classpath: 148 JARs from 
/local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
     [java] Jul 3, 2008 12:23:03 PM 
org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
     [java] INFO: Runtime classpath: 93 JARs from 
/local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
     [java] Jul 3, 2008 12:23:03 PM 
org.apache.tuscany.sca.node.impl.NodeImpl <init>
     [java] INFO: Creating node: http://localhost:9990/node-image/Node_fakeA
     [java] Jul 3, 2008 12:23:04 PM 
org.apache.tuscany.sca.node.impl.NodeImpl configureNode
     [java] INFO: Loading contribution: 
file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
     [java] Jul 3, 2008 12:23:05 PM 
org.apache.tuscany.sca.node.impl.NodeImpl configureNode
     [java] INFO: Loading composite: 
http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
     [java] Jul 3, 2008 12:23:05 PM 
org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 problem
     [java] WARNING: Component reference target not found, it might be a 
remote service: ComponentActrl/ActrlPorts
     [java] Jul 3, 2008 12:23:05 PM 
org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 problem
     [java] WARNING: Component reference target not found, it might be a 
remote service: ComponentActrl/Tmp_double
     [java] Jul 3, 2008 12:23:05 PM 
org.apache.tuscany.sca.node.impl.NodeImpl start
     [java] INFO: Starting node: http://localhost:9990/node-image/Node_fakeA
     [java] Jul 3, 2008 12:23:08 PM 
org.apache.catalina.core.StandardEngine start
     [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.ContextConfig defaultWebConfig
     [java] INFO: No default web.xml
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/jsp_2_0.xsd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/jsp_2_1.xsd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.catalina.startup.DigesterFactory register
     [java] WARNING: Could not get url for 
/javax/servlet/resources/j2ee_web_services_1_1.xsd
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.coyote.http11.Http11Protocol init
     [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.coyote.http11.Http11Protocol start
     [java] INFO: Starting Coyote HTTP/1.1 on http-8100
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
     [java] INFO: Added Servlet mapping: 
http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
     [java] Jul 3, 2008 12:23:09 PM 
org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
     [java] INFO: Added Servlet mapping: 
http://localhost.localdomain:8100/FakeComponentA/Tmp_double
     [java] SCA fakeCompA_node started. Test usage
     [java] test multiple task executions for three inputs
     [java] set inA = 50
     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
     [java] INFO: An instance of fakeComponentA is created
     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
     [java] INFO: Wire fakeUseTmpPortA
     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeCtrlA
     [java] INFO: Wire fakeCtrlPortsA
     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
     [java] INFO: Set an input on component A
     [java] Exception in thread "main" 
org.osoa.sca.ServiceRuntimeException: Target fault type cannot be 
resolved: null
     [java]     at 
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134)
     [java]     at 
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
     [java]     at 
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
     [java]     at $Proxy6.set_double(Unknown Source)
     [java]     at fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
Method)
     [java]     at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     [java]     at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     [java]     at java.lang.reflect.Method.invoke(Method.java:597)
     [java]     at 
org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109)
     [java]     at 
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
     [java]     at 
org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
     [java]     at 
org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
     [java]     at 
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
     [java]     at 
org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
     [java]     at $Proxy6.set_double(Unknown Source)
     [java]     at 
node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
     [java] Caused by: org.apache.axis2.AxisFault: Connection refused
     [java]     at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
     [java]     at 
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
     [java]     at 
org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
     [java]     at 
org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
     [java]     at 
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
     [java]     at 
org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
     [java]     at 
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
     [java]     at 
org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
     [java]     at 
org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
     [java]     at 
org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118)
     [java]     at 
org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89)
     [java]     at 
org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104)
     [java]     at 
org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78)
     [java]     ... 16 more
     [java] Caused by: java.net.ConnectException: Connection refused
     [java]     at java.net.PlainSocketImpl.socketConnect(Native Method)
     [java]     at 
java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
     [java]     at 
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
     [java]     at 
java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
     [java]     at 
java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
     [java]     at java.net.Socket.connect(Socket.java:519)
     [java]     at java.net.Socket.connect(Socket.java:469)
     [java]     at java.net.Socket.<init>(Socket.java:366)
     [java]     at java.net.Socket.<init>(Socket.java:240)
     [java]     at 
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
     [java]     at 
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
     [java]     at 
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
     [java]     at 
org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321)
     [java]     at 
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
     [java]     at 
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
     [java]     at 
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
     [java]     at 
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
     [java]     at 
org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
     [java]     at 
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
     [java]     ... 27 more
     [java] Java Result: 1


The trace on Node_compA is (I use a deamon approach to launch nodes):


03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
Jul 3, 2008 12:22:28 PM node.GenericNode init
INFO: Node null: in init.
Jul 3, 2008 12:22:28 PM node.GenericNode start
INFO: Apache Tuscany SCA Node Node_compA starting...
Jul 3, 2008 12:22:28 PM 
org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
INFO: Runtime classpath: 93 JARs from 
/local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
Jul 3, 2008 12:22:28 PM 
org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
INFO: Runtime classpath: 148 JARs from 
/local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
Jul 3, 2008 12:22:28 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
INFO: Creating node: http://localhost:9990/node-image/Node_compA
Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
INFO: CompositeURL : 
http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp 
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl 
configureNode
INFO: Loading contribution: 
file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl 
configureNode
INFO: Loading composite: 
http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl start
INFO: Starting node: http://localhost:9990/node-image/Node_compA
Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
Jul 3, 2008 12:22:35 PM 
org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
Jul 3, 2008 12:22:35 PM 
org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
Jul 3, 2008 12:22:35 PM node.GenericNode start
INFO: SCA Node Node_compA started.


********

in the trace, I expected a log message saying that an instance of a 
ComponentActrl is created when FakeComponentA tries to use one of its 
services. But it doesn't seem to be created!? At the same time I don't 
understand how the wires of FakeComponentA references to ComponentActrl 
services succeed

[java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
[java] INFO: Wire fakeUseTmpPortA

without an errors like component or reference not found.

Am I wrong somewhere? Let me know if you need any additional information 
(code/xml descriptions).

Thank you for your help.
Hinde


Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Hinde Bouziane <hb...@irisa.fr>.
Simon Laws wrote:
>
>
> On Fri, Jul 4, 2008 at 12:42 PM, Hinde Bouziane <hbouzian@irisa.fr 
> <ma...@irisa.fr>> wrote:
>
>     Simon Laws wrote:
>
>
>
>         On Fri, Jul 4, 2008 at 10:58 AM, Hinde Bouziane
>         <hbouzian@irisa.fr <ma...@irisa.fr>
>         <mailto:hbouzian@irisa.fr <ma...@irisa.fr>>> wrote:
>
>            Hi all,
>            Trying to find an explanation to the problem, I executed
>         the same
>            application on a cluster using different machines. Except the
>            names of the machines, I didn't change anything in the
>         code/ xml
>            descriptors. I had a successful execution :).
>
>            I'm stilling not understanding what locally happens. Can
>         you give
>            me an explanation?
>
>            Thank you,
>            regards,
>            Hinde
>
>
>            Hinde Bouziane wrote:
>
>                Hi all,
>                I'm trying to launch an application with the following
>                distributed architecture/configuration (with two nodes):
>
>                **** ComponentA and ComponentActrl on Node_compA:
>                node_compA.composite :
>                <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                         targetNamespace="http://sample"
>                         xmlns:sample="http://sample"
>                         name="Node_compA_comp">
>                  <component name="ComponentA">
>                      <implementation.java class="a_comp.A_Impl" />
>                  </component>
>                  <component name="ComponentActrl">
>                      <implementation.java class="a_comp.A_ctrl" />
>                      <reference name="userAtask" target="ComponentA" />
>                  <service name="Tmp_double">
>                    <interface.java interface="aSEQb.Tmp_double"/>
>                  </service>
>                  <service name="ActrlPorts">
>                    <interface.java interface="a_comp.ActrlPorts"/>
>                  </service>
>                  </component>
>                </composite>
>
>                cloud/Node_compA.composite:
>
>                <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                      xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>                      targetNamespace="http://sample/cloud"
>                      xmlns:s="http://sample"
>                      name="Node_compA">
>                  <component name="Node_compA">
>                      <t:implementation.node uri="node_compA"
>                composite="s:Node_compA_comp"/>
>                      <service name="Node">
>                          <binding.sca uri="http://localhost:8200"/>
>                      </service>
>                  </component>
>                </composite>
>
>                **** FakeComponentA on Node_fakeA
>                node_fakeA.composite:
>                <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                         targetNamespace="http://sample"
>                         xmlns:sample="http://sample"
>                         name="Node_fakeA_comp">
>                  <component name="FakeComponentA">
>                      <implementation.java class="fake_comp.A_fake_Impl" />
>                      <reference name="fakeUseA"
>                 target="ComponentActrl/Tmp_double" />
>                      <reference name="fakeCtrlA"
>                target="ComponentActrl/ActrlPorts" />
>                  </component>
>                </composite>
>
>                cloud/Node_fakeA.composite:
>
>                <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                      xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>                      targetNamespace="http://sample/cloud"
>                      xmlns:s="http://sample"
>                      name="Node_fakeA">
>                  <component name="Node_fakeA">
>                      <t:implementation.node uri="node_fakeA"
>                composite="s:Node_fakeA_comp"/>
>                      <service name="Node">
>                          <binding.sca uri="http://localhost:8100"/>
>                      </service>
>                  </component>
>                </composite>
>
>                --------------------
>
>                A client program launches Node_fakeA, get the service
>                ComponentActrl/Tmp_double. The associated interface is :
>
>                @Remotable
>                public interface Tmp_double {
>
>                  void set_double(double val);
>                  void set_void();
>                }
>
>                From the client program, the set_double(..) operation is
>                called. It just make a call of the same operation on
>                ComponentActrl. But at this point, an error occurs.
>
>                Here is the relevant part of the Client program:
>
>                public class ApplManagerWithFakeComp {
>
>                  public static void main(String[] args) throws Exception {
>                           ....              // Create a fake_A node
>                          NodeLauncher launcher =
>         NodeLauncher.newInstance();
>                          String configurationURI =
>                "http://localhost:9990/node-image/Node_fakeA";
>                                    SCANode2 node =
>                launcher.createNode(configurationURI);
>                                        // Start the node
>                          try {
>                            
>          node.getClass().getMethod("start").invoke(node);
>                                            } catch (Exception e) {
>                                                System.err.println("SCA
>                fakeCompA_node: could not be started");
>                              throw e;
>                          }
>
>                          System.out.println("SCA fakeCompA_node
>         started. Test
>                usage");
>                          SCAClient client = (SCAClient)node;
>                          Tmp_double prov_inA =
>                client.getService(Tmp_double.class,
>         "FakeComponentA/Tmp_double");
>                                        if (prov_inA == null){
>                              System.err.println("Error: Getted service is
>                null!!!!!!!!!!!!!");
>                          }
>                                    // Do some computations
>                          System.out.println("test multiple task executions
>                for three inputs");                  
>          System.out.println("set
>                inA = 50");
>                          prov_inA.set_double(50);                    
>                    /****************/
>                          System.out.println("set inA = 100");
>                          prov_inA.set_double(100);                    
>               System.out.println("set inA  void");
>                          prov_inA.set_void();
>                     }
>                }
>
>                **************************
>
>                To execute the application, I launch the domain manager,
>                Node_compA (it starts normally) and then the client
>         program.
>                At the line marked by /****************/ I obtain the
>                following trace-error:
>
>
>                ant runAppl
>                Buildfile: build.xml
>
>                runAppl:
>                   [java] Jul 3, 2008 12:23:03 PM
>                org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>                collectJARFiles
>                   [java] INFO: Runtime classpath: 148 JARs from
>              
>          /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>                   [java] Jul 3, 2008 12:23:03 PM
>                org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>                collectJARFiles
>                   [java] INFO: Runtime classpath: 93 JARs from
>              
>          /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>                   [java] Jul 3, 2008 12:23:03 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl <init>
>                   [java] INFO: Creating node:
>                http://localhost:9990/node-image/Node_fakeA
>                   [java] Jul 3, 2008 12:23:04 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>                   [java] INFO: Loading contribution:
>              
>          file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>                   [java] Jul 3, 2008 12:23:05 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>                   [java] INFO: Loading composite:
>              
>          http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>
>                   [java] Jul 3, 2008 12:23:05 PM
>              
>          org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>                problem
>                   [java] WARNING: Component reference target not found, it
>                might be a remote service: ComponentActrl/ActrlPorts
>                   [java] Jul 3, 2008 12:23:05 PM
>              
>          org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>                problem
>                   [java] WARNING: Component reference target not found, it
>                might be a remote service: ComponentActrl/Tmp_double
>                   [java] Jul 3, 2008 12:23:05 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl start
>                   [java] INFO: Starting node:
>                http://localhost:9990/node-image/Node_fakeA
>                   [java] Jul 3, 2008 12:23:08 PM
>                org.apache.catalina.core.StandardEngine start
>                   [java] INFO: Starting Servlet Engine: Apache
>         Tomcat/6.0.14
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.ContextConfig defaultWebConfig
>                   [java] INFO: No default web.xml
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/jsp_2_0.xsd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/jsp_2_1.xsd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.catalina.startup.DigesterFactory register
>                   [java] WARNING: Could not get url for
>                /javax/servlet/resources/j2ee_web_services_1_1.xsd
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.coyote.http11.Http11Protocol init
>                   [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.coyote.http11.Http11Protocol start
>                   [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.tuscany.sca.http.tomcat.TomcatServer
>         addServletMapping
>                   [java] INFO: Added Servlet mapping:
>                http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>                   [java] Jul 3, 2008 12:23:09 PM
>                org.apache.tuscany.sca.http.tomcat.TomcatServer
>         addServletMapping
>                   [java] INFO: Added Servlet mapping:
>                http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>                   [java] SCA fakeCompA_node started. Test usage
>                   [java] test multiple task executions for three inputs
>                   [java] set inA = 50
>                   [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>         <init>
>                   [java] INFO: An instance of fakeComponentA is created
>                   [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>                setfakeUseA
>                   [java] INFO: Wire fakeUseTmpPortA
>                   [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>                setfakeCtrlA
>                   [java] INFO: Wire fakeCtrlPortsA
>                   [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>         set_double
>                   [java] INFO: Set an input on component A
>                   [java] Exception in thread "main"
>                org.osoa.sca.ServiceRuntimeException: Target fault type
>         cannot
>                be resolved: null
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>
>                   [java]     at $Proxy6.set_double(Unknown Source)
>                   [java]     at
>                fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>                   [java]     at
>                sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>                   [java]     at
>              
>          sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
>                   [java]     at
>              
>          sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>
>                   [java]     at
>         java.lang.reflect.Method.invoke(Method.java:597)
>                   [java]     at
>              
>          org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>
>                   [java]     at $Proxy6.set_double(Unknown Source)
>                   [java]     at
>              
>          node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>                   [java] Caused by: org.apache.axis2.AxisFault: Connection
>                refused
>                   [java]     at
>                org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>                   [java]     at
>              
>          org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
>
>                   [java]     at
>              
>          org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>                   [java]     at
>              
>          org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>
>                   [java]     at
>              
>          org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>
>                   [java]     at
>              
>          org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>                   [java]     at
>              
>          org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>
>                   [java]     at
>              
>          org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>
>                   [java]     at
>              
>          org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>                   [java]     at
>              
>          org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104)
>
>                   [java]     at
>              
>          org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78)
>
>                   [java]     ... 16 more
>                   [java] Caused by: java.net.ConnectException:
>         Connection refused
>                   [java]     at
>         java.net.PlainSocketImpl.socketConnect(Native
>                Method)
>                   [java]     at
>              
>          java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>                   [java]     at
>              
>          java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>                   [java]     at
>                java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>                   [java]     at
>                java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>                   [java]     at java.net.Socket.connect(Socket.java:519)
>                   [java]     at java.net.Socket.connect(Socket.java:469)
>                   [java]     at java.net.Socket.<init>(Socket.java:366)
>                   [java]     at java.net.Socket.<init>(Socket.java:240)
>                   [java]     at
>              
>          org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>
>                   [java]     at
>              
>          org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>
>                   [java]     at
>              
>          org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>
>                   [java]     at
>              
>          org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>
>                   [java]     ... 27 more
>                   [java] Java Result: 1
>
>
>                The trace on Node_compA is (I use a deamon approach to
>         launch
>                nodes):
>
>
>                03/07/2008 12:22:28 13792 jsvc.exec error: syscall
>         failed in
>                set_caps
>                03/07/2008 12:22:28 13792 jsvc.exec error: syscall
>         failed in
>                set_caps
>                Jul 3, 2008 12:22:28 PM node.GenericNode init
>                INFO: Node null: in init.
>                Jul 3, 2008 12:22:28 PM node.GenericNode start
>                INFO: Apache Tuscany SCA Node Node_compA starting...
>                Jul 3, 2008 12:22:28 PM
>                org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>                collectJARFiles
>                INFO: Runtime classpath: 93 JARs from
>              
>          /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>                Jul 3, 2008 12:22:28 PM
>                org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>                collectJARFiles
>                INFO: Runtime classpath: 148 JARs from
>              
>          /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>                Jul 3, 2008 12:22:28 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl <init>
>                INFO: Creating node:
>         http://localhost:9990/node-image/Node_compA
>                Jul 3, 2008 12:22:30 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl <init>
>                INFO: CompositeURL :
>              
>          http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>                !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>                Jul 3, 2008 12:22:30 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>                INFO: Loading contribution:
>              
>          file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
>                Jul 3, 2008 12:22:32 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>                INFO: Loading composite:
>              
>          http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
>                Jul 3, 2008 12:22:32 PM
>                org.apache.tuscany.sca.node.impl.NodeImpl start
>                INFO: Starting node:
>         http://localhost:9990/node-image/Node_compA
>                Warning: Running an XSLT 1.0 stylesheet with an XSLT
>         2.0 processor
>                Warning: Running an XSLT 1.0 stylesheet with an XSLT
>         2.0 processor
>                Jul 3, 2008 12:22:35 PM
>                org.apache.tuscany.sca.host.webapp.WebAppServletHost
>                addServletMapping
>                INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
>                Jul 3, 2008 12:22:35 PM
>                org.apache.tuscany.sca.host.webapp.WebAppServletHost
>                addServletMapping
>                INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
>                Jul 3, 2008 12:22:35 PM node.GenericNode start
>                INFO: SCA Node Node_compA started.
>
>
>                ********
>
>                in the trace, I expected a log message saying that an
>         instance
>                of a ComponentActrl is created when FakeComponentA tries to
>                use one of its services. But it doesn't seem to be
>         created!?
>                At the same time I don't understand how the wires of
>                FakeComponentA references to ComponentActrl services
>         succeed
>
>                [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>         setfakeUseA
>                [java] INFO: Wire fakeUseTmpPortA
>
>                without an errors like component or reference not found.
>
>                Am I wrong somewhere? Let me know if you need any
>         additional
>                information (code/xml descriptions).
>
>                Thank you for your help.
>                Hinde
>
>          Hi Hinde
>
>         As a matter of interest what happens if you replace the
>         localhost string with your actual local machine name in your
>         local test?
>
>         A useful debugging aid would be to print out the generated
>         composites that both your nodes will run. You can get that by
>         pointing your browser at URI that the nodes use to load their
>         composite, for example,
>
>         http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
>         Take a look in there and see if the reference binding uris
>         match the service binding uris
>
>         Regards
>
>         Simon
>
>
>     Hi Simon,
>
>     Thank you for your reply.
>
>     The name of my machine is localhost  (returned by hostname command).
>
>     The uris matches:
>
>
>     http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
>     <composite targetNamespace="http://sample" name="Node_compA_comp">
>       <component name="ComponentA" uri="ComponentA">
>
>     <implementation.java class="a_comp.A_Impl"/>
>       <service name="A_Impl">
>     <interface.java interface="a_comp.A_Impl"/>
>     <binding.sca name="A_Impl" uri="http://localhost:8200/ComponentA"/>
>     <callback/>
>     </service>
>     </component>
>       <component name="ComponentActrl" uri="ComponentActrl">
>
>     <implementation.java class="a_comp.A_ctrl"/>
>       <service name="Tmp_double">
>     <interface.java interface="aSEQb.Tmp_double"/>
>     <binding.sca name="Tmp_double"
>     uri="http://localhost:8200/ComponentActrl/Tmp_double"/>
>     <callback/>
>
>     </service>
>       <service name="ActrlPorts">
>     <interface.java interface="a_comp.ActrlPorts"/>
>     <binding.sca name="ActrlPorts"
>     uri="http://localhost:8200/ComponentActrl/ActrlPorts"/>
>     <callback/>
>     </service>
>
>       <reference name="userAtask" target="ComponentA">
>     <interface.java interface="a_comp.AtaskInterface"/>
>     <binding.sca name="userAtask#ComponentA/A_Impl"
>     uri="http://localhost:8200/ComponentA"/>
>     <callback/>
>     </reference>
>     </component>
>     </composite>
>
>
>     http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>
>     <composite targetNamespace="http://sample" name="Node_fakeA_comp">
>       <component name="FakeComponentA" uri="FakeComponentA">
>
>     <implementation.java class="fake_comp.A_fake_Impl"/>
>       <service name="Tmp_double">
>     <interface.java interface="aSEQb.Tmp_double"/>
>     <binding.sca name="Tmp_double"
>     uri="http://localhost:8100/FakeComponentA/Tmp_double"/>
>     <callback/>
>
>     </service>
>       <service name="ActrlPorts">
>     <interface.java interface="a_comp.ActrlPorts"/>
>     <binding.sca name="ActrlPorts"
>     uri="http://localhost:8100/FakeComponentA/ActrlPorts"/>
>     <callback/>
>     </service>
>
>       <reference name="fakeUseA" target="ComponentActrl/Tmp_double">
>     <interface.java interface="aSEQb.Tmp_double"/>
>     <binding.sca name="fakeUseA#ComponentActrl/Tmp_double"
>     uri="http://localhost:8200/ComponentActrl/Tmp_double"/>
>     <callback/>
>     </reference>
>
>       <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts">
>     <interface.java interface="a_comp.ActrlPorts"/>
>     <binding.sca name="fakeCtrlA#ComponentActrl/ActrlPorts"
>     uri="http://localhost:8200/ComponentActrl/ActrlPorts"/>
>     <callback/>
>     </reference>
>     </component>
>     </composite>
>
>     I'm used to do locally tests distributed examples
>     (calculator-distributed and own simple examples without problems
>     (with "localhost" as the name of the machine).
>
>     So, I just tried on another single machine (on a cluster) and no
>     problem occurred. Is that can mean the name "localhost"can cause
>     problems? but why in this case and not others?
>
>     Thanks,
>     regards
>     Hinde
>
>
>
>
>
>
>
>
>
>
> No sure. Check you hosts file. I recently had  a problem on my Windows 
> box where I installed a webcam and the effect was it installed some 
> kind of video network driver that was redirecting all my host lookups 
> so that nothing was resolving correctly.
>
> Simon
Hi Simon,

The hosts file contains only the following line:

127.0.0.1       localhost.localdomain   localhost

(I'm on Linux).
Regards
Hinde


Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Simon Laws <si...@googlemail.com>.
On Fri, Jul 4, 2008 at 12:42 PM, Hinde Bouziane <hb...@irisa.fr> wrote:

> Simon Laws wrote:
>
>
>>
>> On Fri, Jul 4, 2008 at 10:58 AM, Hinde Bouziane <hbouzian@irisa.fr<mailto:
>> hbouzian@irisa.fr>> wrote:
>>
>>    Hi all,
>>    Trying to find an explanation to the problem, I executed the same
>>    application on a cluster using different machines. Except the
>>    names of the machines, I didn't change anything in the code/ xml
>>    descriptors. I had a successful execution :).
>>
>>    I'm stilling not understanding what locally happens. Can you give
>>    me an explanation?
>>
>>    Thank you,
>>    regards,
>>    Hinde
>>
>>
>>    Hinde Bouziane wrote:
>>
>>        Hi all,
>>        I'm trying to launch an application with the following
>>        distributed architecture/configuration (with two nodes):
>>
>>        **** ComponentA and ComponentActrl on Node_compA:
>>        node_compA.composite :
>>        <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>                 targetNamespace="http://sample"
>>                 xmlns:sample="http://sample"
>>                 name="Node_compA_comp">
>>          <component name="ComponentA">
>>              <implementation.java class="a_comp.A_Impl" />
>>          </component>
>>          <component name="ComponentActrl">
>>              <implementation.java class="a_comp.A_ctrl" />
>>              <reference name="userAtask" target="ComponentA" />
>>          <service name="Tmp_double">
>>            <interface.java interface="aSEQb.Tmp_double"/>
>>          </service>
>>          <service name="ActrlPorts">
>>            <interface.java interface="a_comp.ActrlPorts"/>
>>          </service>
>>          </component>
>>        </composite>
>>
>>        cloud/Node_compA.composite:
>>
>>        <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>              xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>>              targetNamespace="http://sample/cloud"
>>              xmlns:s="http://sample"
>>              name="Node_compA">
>>          <component name="Node_compA">
>>              <t:implementation.node uri="node_compA"
>>        composite="s:Node_compA_comp"/>
>>              <service name="Node">
>>                  <binding.sca uri="http://localhost:8200"/>
>>              </service>
>>          </component>
>>        </composite>
>>
>>        **** FakeComponentA on Node_fakeA
>>        node_fakeA.composite:
>>        <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>                 targetNamespace="http://sample"
>>                 xmlns:sample="http://sample"
>>                 name="Node_fakeA_comp">
>>          <component name="FakeComponentA">
>>              <implementation.java class="fake_comp.A_fake_Impl" />
>>              <reference name="fakeUseA"
>>         target="ComponentActrl/Tmp_double" />
>>              <reference name="fakeCtrlA"
>>        target="ComponentActrl/ActrlPorts" />
>>          </component>
>>        </composite>
>>
>>        cloud/Node_fakeA.composite:
>>
>>        <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>              xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>>              targetNamespace="http://sample/cloud"
>>              xmlns:s="http://sample"
>>              name="Node_fakeA">
>>          <component name="Node_fakeA">
>>              <t:implementation.node uri="node_fakeA"
>>        composite="s:Node_fakeA_comp"/>
>>              <service name="Node">
>>                  <binding.sca uri="http://localhost:8100"/>
>>              </service>
>>          </component>
>>        </composite>
>>
>>        --------------------
>>
>>        A client program launches Node_fakeA, get the service
>>        ComponentActrl/Tmp_double. The associated interface is :
>>
>>        @Remotable
>>        public interface Tmp_double {
>>
>>          void set_double(double val);
>>          void set_void();
>>        }
>>
>>        From the client program, the set_double(..) operation is
>>        called. It just make a call of the same operation on
>>        ComponentActrl. But at this point, an error occurs.
>>
>>        Here is the relevant part of the Client program:
>>
>>        public class ApplManagerWithFakeComp {
>>
>>          public static void main(String[] args) throws Exception {
>>                   ....              // Create a fake_A node
>>                  NodeLauncher launcher = NodeLauncher.newInstance();
>>                  String configurationURI =
>>        "http://localhost:9990/node-image/Node_fakeA";
>>                            SCANode2 node =
>>        launcher.createNode(configurationURI);
>>                                // Start the node
>>                  try {
>>                      node.getClass().getMethod("start").invoke(node);
>>                                    } catch (Exception e) {
>>                                        System.err.println("SCA
>>        fakeCompA_node: could not be started");
>>                      throw e;
>>                  }
>>
>>                  System.out.println("SCA fakeCompA_node started. Test
>>        usage");
>>                  SCAClient client = (SCAClient)node;
>>                  Tmp_double prov_inA =
>>        client.getService(Tmp_double.class, "FakeComponentA/Tmp_double");
>>                                if (prov_inA == null){
>>                      System.err.println("Error: Getted service is
>>        null!!!!!!!!!!!!!");
>>                  }
>>                            // Do some computations
>>                  System.out.println("test multiple task executions
>>        for three inputs");                    System.out.println("set
>>        inA = 50");
>>                  prov_inA.set_double(50);
>>  /****************/
>>                  System.out.println("set inA = 100");
>>                  prov_inA.set_double(100);
>> System.out.println("set inA  void");
>>                  prov_inA.set_void();
>>             }
>>        }
>>
>>        **************************
>>
>>        To execute the application, I launch the domain manager,
>>        Node_compA (it starts normally) and then the client program.
>>        At the line marked by /****************/ I obtain the
>>        following trace-error:
>>
>>
>>        ant runAppl
>>        Buildfile: build.xml
>>
>>        runAppl:
>>           [java] Jul 3, 2008 12:23:03 PM
>>        org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>>        collectJARFiles
>>           [java] INFO: Runtime classpath: 148 JARs from
>>        /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>>           [java] Jul 3, 2008 12:23:03 PM
>>        org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>>        collectJARFiles
>>           [java] INFO: Runtime classpath: 93 JARs from
>>        /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>>           [java] Jul 3, 2008 12:23:03 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl <init>
>>           [java] INFO: Creating node:
>>        http://localhost:9990/node-image/Node_fakeA
>>           [java] Jul 3, 2008 12:23:04 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>           [java] INFO: Loading contribution:
>>
>>  file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>>           [java] Jul 3, 2008 12:23:05 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>           [java] INFO: Loading composite:
>>
>> http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>>
>>           [java] Jul 3, 2008 12:23:05 PM
>>        org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>>        problem
>>           [java] WARNING: Component reference target not found, it
>>        might be a remote service: ComponentActrl/ActrlPorts
>>           [java] Jul 3, 2008 12:23:05 PM
>>        org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>>        problem
>>           [java] WARNING: Component reference target not found, it
>>        might be a remote service: ComponentActrl/Tmp_double
>>           [java] Jul 3, 2008 12:23:05 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl start
>>           [java] INFO: Starting node:
>>        http://localhost:9990/node-image/Node_fakeA
>>           [java] Jul 3, 2008 12:23:08 PM
>>        org.apache.catalina.core.StandardEngine start
>>           [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.ContextConfig defaultWebConfig
>>           [java] INFO: No default web.xml
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/jsp_2_0.xsd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/jsp_2_1.xsd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.catalina.startup.DigesterFactory register
>>           [java] WARNING: Could not get url for
>>        /javax/servlet/resources/j2ee_web_services_1_1.xsd
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.coyote.http11.Http11Protocol init
>>           [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.coyote.http11.Http11Protocol start
>>           [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>>           [java] INFO: Added Servlet mapping:
>>        http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>>           [java] Jul 3, 2008 12:23:09 PM
>>        org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>>           [java] INFO: Added Servlet mapping:
>>        http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>>           [java] SCA fakeCompA_node started. Test usage
>>           [java] test multiple task executions for three inputs
>>           [java] set inA = 50
>>           [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
>>           [java] INFO: An instance of fakeComponentA is created
>>           [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>>        setfakeUseA
>>           [java] INFO: Wire fakeUseTmpPortA
>>           [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>>        setfakeCtrlA
>>           [java] INFO: Wire fakeCtrlPortsA
>>           [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
>>           [java] INFO: Set an input on component A
>>           [java] Exception in thread "main"
>>        org.osoa.sca.ServiceRuntimeException: Target fault type cannot
>>        be resolved: null
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>>
>>           [java]     at $Proxy6.set_double(Unknown Source)
>>           [java]     at
>>        fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>>           [java]     at
>>        sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>           [java]     at
>>
>>  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>
>>           [java]     at
>>
>>  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>
>>           [java]     at java.lang.reflect.Method.invoke(Method.java:597)
>>           [java]     at
>>
>>  org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>>
>>           [java]     at $Proxy6.set_double(Unknown Source)
>>           [java]     at
>>        node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>>           [java] Caused by: org.apache.axis2.AxisFault: Connection
>>        refused
>>           [java]     at
>>        org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>>           [java]     at
>>
>>  org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
>>
>>           [java]     at
>>        org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>>           [java]     at
>>
>>  org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>>
>>           [java]     at
>>
>>  org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>>
>>           [java]     at
>>        org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>>           [java]     at
>>
>>  org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>>
>>           [java]     at
>>
>>  org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>>
>>           [java]     at
>>
>>  org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>>           [java]     at
>>
>>  org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104)
>>
>>           [java]     at
>>
>>  org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78)
>>
>>           [java]     ... 16 more
>>           [java] Caused by: java.net.ConnectException: Connection refused
>>           [java]     at java.net.PlainSocketImpl.socketConnect(Native
>>        Method)
>>           [java]     at
>>        java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>>           [java]     at
>>        java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>>           [java]     at
>>        java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>>           [java]     at
>>        java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>>           [java]     at java.net.Socket.connect(Socket.java:519)
>>           [java]     at java.net.Socket.connect(Socket.java:469)
>>           [java]     at java.net.Socket.<init>(Socket.java:366)
>>           [java]     at java.net.Socket.<init>(Socket.java:240)
>>           [java]     at
>>
>>  org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>>
>>           [java]     at
>>
>>  org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>>
>>           [java]     at
>>
>>  org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>>
>>           [java]     at
>>
>>  org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>>
>>           [java]     ... 27 more
>>           [java] Java Result: 1
>>
>>
>>        The trace on Node_compA is (I use a deamon approach to launch
>>        nodes):
>>
>>
>>        03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in
>>        set_caps
>>        03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in
>>        set_caps
>>        Jul 3, 2008 12:22:28 PM node.GenericNode init
>>        INFO: Node null: in init.
>>        Jul 3, 2008 12:22:28 PM node.GenericNode start
>>        INFO: Apache Tuscany SCA Node Node_compA starting...
>>        Jul 3, 2008 12:22:28 PM
>>        org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>>        collectJARFiles
>>        INFO: Runtime classpath: 93 JARs from
>>        /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>>        Jul 3, 2008 12:22:28 PM
>>        org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>>        collectJARFiles
>>        INFO: Runtime classpath: 148 JARs from
>>        /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>>        Jul 3, 2008 12:22:28 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl <init>
>>        INFO: Creating node: http://localhost:9990/node-image/Node_compA
>>        Jul 3, 2008 12:22:30 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl <init>
>>        INFO: CompositeURL :
>>
>> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>>        !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>>        Jul 3, 2008 12:22:30 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>        INFO: Loading contribution:
>>
>>  file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
>>        Jul 3, 2008 12:22:32 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>        INFO: Loading composite:
>>
>> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>>
>>        Jul 3, 2008 12:22:32 PM
>>        org.apache.tuscany.sca.node.impl.NodeImpl start
>>        INFO: Starting node: http://localhost:9990/node-image/Node_compA
>>        Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>>        Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>>        Jul 3, 2008 12:22:35 PM
>>        org.apache.tuscany.sca.host.webapp.WebAppServletHost
>>        addServletMapping
>>        INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
>>        Jul 3, 2008 12:22:35 PM
>>        org.apache.tuscany.sca.host.webapp.WebAppServletHost
>>        addServletMapping
>>        INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
>>        Jul 3, 2008 12:22:35 PM node.GenericNode start
>>        INFO: SCA Node Node_compA started.
>>
>>
>>        ********
>>
>>        in the trace, I expected a log message saying that an instance
>>        of a ComponentActrl is created when FakeComponentA tries to
>>        use one of its services. But it doesn't seem to be created!?
>>        At the same time I don't understand how the wires of
>>        FakeComponentA references to ComponentActrl services succeed
>>
>>        [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>>        [java] INFO: Wire fakeUseTmpPortA
>>
>>        without an errors like component or reference not found.
>>
>>        Am I wrong somewhere? Let me know if you need any additional
>>        information (code/xml descriptions).
>>
>>        Thank you for your help.
>>        Hinde
>>
>>  Hi Hinde
>>
>> As a matter of interest what happens if you replace the localhost string
>> with your actual local machine name in your local test?
>>
>> A useful debugging aid would be to print out the generated composites that
>> both your nodes will run. You can get that by pointing your browser at URI
>> that the nodes use to load their composite, for example,
>>
>>
>> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>>
>> Take a look in there and see if the reference binding uris match the
>> service binding uris
>>
>> Regards
>>
>> Simon
>>
>>
>>  Hi Simon,
>
> Thank you for your reply.
>
> The name of my machine is localhost  (returned by hostname command).
>
> The uris matches:
>
>
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
> <composite targetNamespace="http://sample" name="Node_compA_comp">
>   <component name="ComponentA" uri="ComponentA">
> <implementation.java class="a_comp.A_Impl"/>
>   <service name="A_Impl">
> <interface.java interface="a_comp.A_Impl"/>
> <binding.sca name="A_Impl" uri="http://localhost:8200/ComponentA"/>
> <callback/>
> </service>
> </component>
>   <component name="ComponentActrl" uri="ComponentActrl">
> <implementation.java class="a_comp.A_ctrl"/>
>   <service name="Tmp_double">
> <interface.java interface="aSEQb.Tmp_double"/>
> <binding.sca name="Tmp_double" uri="
> http://localhost:8200/ComponentActrl/Tmp_double"/>
> <callback/>
> </service>
>   <service name="ActrlPorts">
> <interface.java interface="a_comp.ActrlPorts"/>
> <binding.sca name="ActrlPorts" uri="
> http://localhost:8200/ComponentActrl/ActrlPorts"/>
> <callback/>
> </service>
>   <reference name="userAtask" target="ComponentA">
> <interface.java interface="a_comp.AtaskInterface"/>
> <binding.sca name="userAtask#ComponentA/A_Impl" uri="
> http://localhost:8200/ComponentA"/>
> <callback/>
> </reference>
> </component>
> </composite>
>
>
> http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>
> <composite targetNamespace="http://sample" name="Node_fakeA_comp">
>   <component name="FakeComponentA" uri="FakeComponentA">
> <implementation.java class="fake_comp.A_fake_Impl"/>
>   <service name="Tmp_double">
> <interface.java interface="aSEQb.Tmp_double"/>
> <binding.sca name="Tmp_double" uri="
> http://localhost:8100/FakeComponentA/Tmp_double"/>
> <callback/>
> </service>
>   <service name="ActrlPorts">
> <interface.java interface="a_comp.ActrlPorts"/>
> <binding.sca name="ActrlPorts" uri="
> http://localhost:8100/FakeComponentA/ActrlPorts"/>
> <callback/>
> </service>
>   <reference name="fakeUseA" target="ComponentActrl/Tmp_double">
> <interface.java interface="aSEQb.Tmp_double"/>
> <binding.sca name="fakeUseA#ComponentActrl/Tmp_double" uri="
> http://localhost:8200/ComponentActrl/Tmp_double"/>
> <callback/>
> </reference>
>   <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts">
> <interface.java interface="a_comp.ActrlPorts"/>
> <binding.sca name="fakeCtrlA#ComponentActrl/ActrlPorts" uri="
> http://localhost:8200/ComponentActrl/ActrlPorts"/>
> <callback/>
> </reference>
> </component>
> </composite>
>
> I'm used to do locally tests distributed examples (calculator-distributed
> and own simple examples without problems (with "localhost" as the name of
> the machine).
>
> So, I just tried on another single machine (on a cluster) and no problem
> occurred. Is that can mean the name "localhost"can cause problems? but why
> in this case and not others?
>
> Thanks,
> regards
> Hinde
>
>
>
>
>
>
>
>
>
>
No sure. Check you hosts file. I recently had  a problem on my Windows box
where I installed a webcam and the effect was it installed some kind of
video network driver that was redirecting all my host lookups so that
nothing was resolving correctly.

Simon

Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Hinde Bouziane <hb...@irisa.fr>.
Simon Laws wrote:
>
>
> On Fri, Jul 4, 2008 at 10:58 AM, Hinde Bouziane <hbouzian@irisa.fr 
> <ma...@irisa.fr>> wrote:
>
>     Hi all,
>     Trying to find an explanation to the problem, I executed the same
>     application on a cluster using different machines. Except the
>     names of the machines, I didn't change anything in the code/ xml
>     descriptors. I had a successful execution :).
>
>     I'm stilling not understanding what locally happens. Can you give
>     me an explanation?
>
>     Thank you,
>     regards,
>     Hinde
>
>
>     Hinde Bouziane wrote:
>
>         Hi all,
>         I'm trying to launch an application with the following
>         distributed architecture/configuration (with two nodes):
>
>         **** ComponentA and ComponentActrl on Node_compA:
>         node_compA.composite :
>         <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                  targetNamespace="http://sample"
>                  xmlns:sample="http://sample"
>                  name="Node_compA_comp">
>           <component name="ComponentA">
>               <implementation.java class="a_comp.A_Impl" />
>           </component>
>           <component name="ComponentActrl">
>               <implementation.java class="a_comp.A_ctrl" />
>               <reference name="userAtask" target="ComponentA" />
>           <service name="Tmp_double">
>             <interface.java interface="aSEQb.Tmp_double"/>
>           </service>
>           <service name="ActrlPorts">
>             <interface.java interface="a_comp.ActrlPorts"/>
>           </service>
>           </component>
>         </composite>
>
>         cloud/Node_compA.composite:
>
>         <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>               xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>               targetNamespace="http://sample/cloud"
>               xmlns:s="http://sample"
>               name="Node_compA">
>           <component name="Node_compA">
>               <t:implementation.node uri="node_compA"
>         composite="s:Node_compA_comp"/>
>               <service name="Node">
>                   <binding.sca uri="http://localhost:8200"/>
>               </service>
>           </component>
>         </composite>
>
>         **** FakeComponentA on Node_fakeA
>         node_fakeA.composite:
>         <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>                  targetNamespace="http://sample"
>                  xmlns:sample="http://sample"
>                  name="Node_fakeA_comp">
>           <component name="FakeComponentA">
>               <implementation.java class="fake_comp.A_fake_Impl" />
>               <reference name="fakeUseA"
>          target="ComponentActrl/Tmp_double" />
>               <reference name="fakeCtrlA"
>         target="ComponentActrl/ActrlPorts" />
>           </component>
>         </composite>
>
>         cloud/Node_fakeA.composite:
>
>         <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>               xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>               targetNamespace="http://sample/cloud"
>               xmlns:s="http://sample"
>               name="Node_fakeA">
>           <component name="Node_fakeA">
>               <t:implementation.node uri="node_fakeA"
>         composite="s:Node_fakeA_comp"/>
>               <service name="Node">
>                   <binding.sca uri="http://localhost:8100"/>
>               </service>
>           </component>
>         </composite>
>
>         --------------------
>
>         A client program launches Node_fakeA, get the service
>         ComponentActrl/Tmp_double. The associated interface is :
>
>         @Remotable
>         public interface Tmp_double {
>
>           void set_double(double val);
>           void set_void();
>         }
>
>         From the client program, the set_double(..) operation is
>         called. It just make a call of the same operation on
>         ComponentActrl. But at this point, an error occurs.
>
>         Here is the relevant part of the Client program:
>
>         public class ApplManagerWithFakeComp {
>
>           public static void main(String[] args) throws Exception {
>                    ....              // Create a fake_A node
>                   NodeLauncher launcher = NodeLauncher.newInstance();
>                   String configurationURI =
>         "http://localhost:9990/node-image/Node_fakeA";
>                             SCANode2 node =
>         launcher.createNode(configurationURI);
>                                 // Start the node
>                   try {
>                       node.getClass().getMethod("start").invoke(node);
>                                     } catch (Exception e) {
>                                         System.err.println("SCA
>         fakeCompA_node: could not be started");
>                       throw e;
>                   }
>
>                   System.out.println("SCA fakeCompA_node started. Test
>         usage");
>                   SCAClient client = (SCAClient)node;
>                   Tmp_double prov_inA =
>         client.getService(Tmp_double.class, "FakeComponentA/Tmp_double");
>                                 if (prov_inA == null){
>                       System.err.println("Error: Getted service is
>         null!!!!!!!!!!!!!");
>                   }
>                             // Do some computations
>                   System.out.println("test multiple task executions
>         for three inputs");                    System.out.println("set
>         inA = 50");
>                   prov_inA.set_double(50);                        
>         /****************/
>                   System.out.println("set inA = 100");
>                   prov_inA.set_double(100);                  
>          System.out.println("set inA  void");
>                   prov_inA.set_void();
>              }
>         }
>
>         **************************
>
>         To execute the application, I launch the domain manager,
>         Node_compA (it starts normally) and then the client program.
>         At the line marked by /****************/ I obtain the
>         following trace-error:
>
>
>         ant runAppl
>         Buildfile: build.xml
>
>         runAppl:
>            [java] Jul 3, 2008 12:23:03 PM
>         org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>         collectJARFiles
>            [java] INFO: Runtime classpath: 148 JARs from
>         /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>            [java] Jul 3, 2008 12:23:03 PM
>         org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>         collectJARFiles
>            [java] INFO: Runtime classpath: 93 JARs from
>         /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>            [java] Jul 3, 2008 12:23:03 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl <init>
>            [java] INFO: Creating node:
>         http://localhost:9990/node-image/Node_fakeA
>            [java] Jul 3, 2008 12:23:04 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>            [java] INFO: Loading contribution:
>         file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>            [java] Jul 3, 2008 12:23:05 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>            [java] INFO: Loading composite:
>         http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>
>            [java] Jul 3, 2008 12:23:05 PM
>         org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>         problem
>            [java] WARNING: Component reference target not found, it
>         might be a remote service: ComponentActrl/ActrlPorts
>            [java] Jul 3, 2008 12:23:05 PM
>         org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1
>         problem
>            [java] WARNING: Component reference target not found, it
>         might be a remote service: ComponentActrl/Tmp_double
>            [java] Jul 3, 2008 12:23:05 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl start
>            [java] INFO: Starting node:
>         http://localhost:9990/node-image/Node_fakeA
>            [java] Jul 3, 2008 12:23:08 PM
>         org.apache.catalina.core.StandardEngine start
>            [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.ContextConfig defaultWebConfig
>            [java] INFO: No default web.xml
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/jsp_2_0.xsd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/jsp_2_1.xsd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.catalina.startup.DigesterFactory register
>            [java] WARNING: Could not get url for
>         /javax/servlet/resources/j2ee_web_services_1_1.xsd
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.coyote.http11.Http11Protocol init
>            [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.coyote.http11.Http11Protocol start
>            [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>            [java] INFO: Added Servlet mapping:
>         http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>            [java] Jul 3, 2008 12:23:09 PM
>         org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>            [java] INFO: Added Servlet mapping:
>         http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>            [java] SCA fakeCompA_node started. Test usage
>            [java] test multiple task executions for three inputs
>            [java] set inA = 50
>            [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
>            [java] INFO: An instance of fakeComponentA is created
>            [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>         setfakeUseA
>            [java] INFO: Wire fakeUseTmpPortA
>            [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl
>         setfakeCtrlA
>            [java] INFO: Wire fakeCtrlPortsA
>            [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
>            [java] INFO: Set an input on component A
>            [java] Exception in thread "main"
>         org.osoa.sca.ServiceRuntimeException: Target fault type cannot
>         be resolved: null
>            [java]     at
>         org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134)
>
>            [java]     at
>         org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>
>            [java]     at
>         org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>
>            [java]     at $Proxy6.set_double(Unknown Source)
>            [java]     at
>         fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>            [java]     at
>         sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>            [java]     at
>         sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
>            [java]     at
>         sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>
>            [java]     at java.lang.reflect.Method.invoke(Method.java:597)
>            [java]     at
>         org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109)
>
>            [java]     at
>         org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>
>            [java]     at
>         org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
>
>            [java]     at
>         org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>
>            [java]     at
>         org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>
>            [java]     at
>         org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>
>            [java]     at $Proxy6.set_double(Unknown Source)
>            [java]     at
>         node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>            [java] Caused by: org.apache.axis2.AxisFault: Connection
>         refused
>            [java]     at
>         org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>            [java]     at
>         org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
>
>            [java]     at
>         org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>            [java]     at
>         org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>
>            [java]     at
>         org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>
>            [java]     at
>         org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>            [java]     at
>         org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>
>            [java]     at
>         org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>
>            [java]     at
>         org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>            [java]     at
>         org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118)
>
>            [java]     at
>         org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89)
>
>            [java]     at
>         org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104)
>
>            [java]     at
>         org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78)
>
>            [java]     ... 16 more
>            [java] Caused by: java.net.ConnectException: Connection refused
>            [java]     at java.net.PlainSocketImpl.socketConnect(Native
>         Method)
>            [java]     at
>         java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>            [java]     at
>         java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>            [java]     at
>         java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>            [java]     at
>         java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>            [java]     at java.net.Socket.connect(Socket.java:519)
>            [java]     at java.net.Socket.connect(Socket.java:469)
>            [java]     at java.net.Socket.<init>(Socket.java:366)
>            [java]     at java.net.Socket.<init>(Socket.java:240)
>            [java]     at
>         org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
>
>            [java]     at
>         org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
>
>            [java]     at
>         org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
>
>            [java]     at
>         org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321)
>
>            [java]     at
>         org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
>
>            [java]     at
>         org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>
>            [java]     at
>         org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>
>            [java]     at
>         org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>
>            [java]     at
>         org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>
>            [java]     at
>         org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>
>            [java]     ... 27 more
>            [java] Java Result: 1
>
>
>         The trace on Node_compA is (I use a deamon approach to launch
>         nodes):
>
>
>         03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in
>         set_caps
>         03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in
>         set_caps
>         Jul 3, 2008 12:22:28 PM node.GenericNode init
>         INFO: Node null: in init.
>         Jul 3, 2008 12:22:28 PM node.GenericNode start
>         INFO: Apache Tuscany SCA Node Node_compA starting...
>         Jul 3, 2008 12:22:28 PM
>         org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>         collectJARFiles
>         INFO: Runtime classpath: 93 JARs from
>         /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>         Jul 3, 2008 12:22:28 PM
>         org.apache.tuscany.sca.node.launcher.NodeLauncherUtil
>         collectJARFiles
>         INFO: Runtime classpath: 148 JARs from
>         /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>         Jul 3, 2008 12:22:28 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl <init>
>         INFO: Creating node: http://localhost:9990/node-image/Node_compA
>         Jul 3, 2008 12:22:30 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl <init>
>         INFO: CompositeURL :
>         http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>         !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>         Jul 3, 2008 12:22:30 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>         INFO: Loading contribution:
>         file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
>         Jul 3, 2008 12:22:32 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>         INFO: Loading composite:
>         http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
>         Jul 3, 2008 12:22:32 PM
>         org.apache.tuscany.sca.node.impl.NodeImpl start
>         INFO: Starting node: http://localhost:9990/node-image/Node_compA
>         Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>         Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>         Jul 3, 2008 12:22:35 PM
>         org.apache.tuscany.sca.host.webapp.WebAppServletHost
>         addServletMapping
>         INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
>         Jul 3, 2008 12:22:35 PM
>         org.apache.tuscany.sca.host.webapp.WebAppServletHost
>         addServletMapping
>         INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
>         Jul 3, 2008 12:22:35 PM node.GenericNode start
>         INFO: SCA Node Node_compA started.
>
>
>         ********
>
>         in the trace, I expected a log message saying that an instance
>         of a ComponentActrl is created when FakeComponentA tries to
>         use one of its services. But it doesn't seem to be created!?
>         At the same time I don't understand how the wires of
>         FakeComponentA references to ComponentActrl services succeed
>
>         [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>         [java] INFO: Wire fakeUseTmpPortA
>
>         without an errors like component or reference not found.
>
>         Am I wrong somewhere? Let me know if you need any additional
>         information (code/xml descriptions).
>
>         Thank you for your help.
>         Hinde
>
>  
> Hi Hinde
>
> As a matter of interest what happens if you replace the localhost 
> string with your actual local machine name in your local test?
>
> A useful debugging aid would be to print out the generated composites 
> that both your nodes will run. You can get that by pointing your 
> browser at URI that the nodes use to load their composite, for example,
>
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>
> Take a look in there and see if the reference binding uris match the 
> service binding uris
>
> Regards
>
> Simon
>
>
Hi Simon,

Thank you for your reply.

The name of my machine is localhost  (returned by hostname command).

The uris matches:

http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp

<composite targetNamespace="http://sample" name="Node_compA_comp">
    <component name="ComponentA" uri="ComponentA">
<implementation.java class="a_comp.A_Impl"/>
    <service name="A_Impl">
<interface.java interface="a_comp.A_Impl"/>
<binding.sca name="A_Impl" uri="http://localhost:8200/ComponentA"/>
<callback/>
</service>
</component>
    <component name="ComponentActrl" uri="ComponentActrl">
<implementation.java class="a_comp.A_ctrl"/>
    <service name="Tmp_double">
<interface.java interface="aSEQb.Tmp_double"/>
<binding.sca name="Tmp_double" 
uri="http://localhost:8200/ComponentActrl/Tmp_double"/>
<callback/>
</service>
    <service name="ActrlPorts">
<interface.java interface="a_comp.ActrlPorts"/>
<binding.sca name="ActrlPorts" 
uri="http://localhost:8200/ComponentActrl/ActrlPorts"/>
<callback/>
</service>
    <reference name="userAtask" target="ComponentA">
<interface.java interface="a_comp.AtaskInterface"/>
<binding.sca name="userAtask#ComponentA/A_Impl" 
uri="http://localhost:8200/ComponentA"/>
<callback/>
</reference>
</component>
</composite>

http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp

<composite targetNamespace="http://sample" name="Node_fakeA_comp">
    <component name="FakeComponentA" uri="FakeComponentA">
<implementation.java class="fake_comp.A_fake_Impl"/>
    <service name="Tmp_double">
<interface.java interface="aSEQb.Tmp_double"/>
<binding.sca name="Tmp_double" 
uri="http://localhost:8100/FakeComponentA/Tmp_double"/>
<callback/>
</service>
    <service name="ActrlPorts">
<interface.java interface="a_comp.ActrlPorts"/>
<binding.sca name="ActrlPorts" 
uri="http://localhost:8100/FakeComponentA/ActrlPorts"/>
<callback/>
</service>
    <reference name="fakeUseA" target="ComponentActrl/Tmp_double">
<interface.java interface="aSEQb.Tmp_double"/>
<binding.sca name="fakeUseA#ComponentActrl/Tmp_double" 
uri="http://localhost:8200/ComponentActrl/Tmp_double"/>
<callback/>
</reference>
    <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts">
<interface.java interface="a_comp.ActrlPorts"/>
<binding.sca name="fakeCtrlA#ComponentActrl/ActrlPorts" 
uri="http://localhost:8200/ComponentActrl/ActrlPorts"/>
<callback/>
</reference>
</component>
</composite>

I'm used to do locally tests distributed examples 
(calculator-distributed and own simple examples without problems (with 
"localhost" as the name of the machine).

So, I just tried on another single machine (on a cluster) and no problem 
occurred. Is that can mean the name "localhost"can cause problems? but 
why in this case and not others?
 
Thanks,
regards
Hinde








 

Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Simon Laws <si...@googlemail.com>.
On Fri, Jul 4, 2008 at 10:58 AM, Hinde Bouziane <hb...@irisa.fr> wrote:

> Hi all,
> Trying to find an explanation to the problem, I executed the same
> application on a cluster using different machines. Except the names of the
> machines, I didn't change anything in the code/ xml descriptors. I had a
> successful execution :).
>
> I'm stilling not understanding what locally happens. Can you give me an
> explanation?
>
> Thank you,
> regards,
> Hinde
>
>
> Hinde Bouziane wrote:
>
>> Hi all,
>> I'm trying to launch an application with the following distributed
>> architecture/configuration (with two nodes):
>>
>> **** ComponentA and ComponentActrl on Node_compA:
>> node_compA.composite :
>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>          targetNamespace="http://sample"
>>          xmlns:sample="http://sample"
>>          name="Node_compA_comp">
>>   <component name="ComponentA">
>>       <implementation.java class="a_comp.A_Impl" />
>>   </component>
>>   <component name="ComponentActrl">
>>       <implementation.java class="a_comp.A_ctrl" />
>>       <reference name="userAtask" target="ComponentA" />
>>   <service name="Tmp_double">
>>     <interface.java interface="aSEQb.Tmp_double"/>
>>   </service>
>>   <service name="ActrlPorts">
>>     <interface.java interface="a_comp.ActrlPorts"/>
>>   </service>
>>   </component>
>> </composite>
>>
>> cloud/Node_compA.composite:
>>
>> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>       xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>>       targetNamespace="http://sample/cloud"
>>       xmlns:s="http://sample"
>>       name="Node_compA">
>>   <component name="Node_compA">
>>       <t:implementation.node uri="node_compA"
>> composite="s:Node_compA_comp"/>
>>       <service name="Node">
>>           <binding.sca uri="http://localhost:8200"/>
>>       </service>
>>   </component>
>> </composite>
>>
>> **** FakeComponentA on Node_fakeA
>> node_fakeA.composite:
>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>          targetNamespace="http://sample"
>>          xmlns:sample="http://sample"
>>          name="Node_fakeA_comp">
>>   <component name="FakeComponentA">
>>       <implementation.java class="fake_comp.A_fake_Impl" />
>>       <reference name="fakeUseA"  target="ComponentActrl/Tmp_double" />
>>       <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts" />
>>   </component>
>> </composite>
>>
>> cloud/Node_fakeA.composite:
>>
>> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>>       xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>>       targetNamespace="http://sample/cloud"
>>       xmlns:s="http://sample"
>>       name="Node_fakeA">
>>   <component name="Node_fakeA">
>>       <t:implementation.node uri="node_fakeA"
>> composite="s:Node_fakeA_comp"/>
>>       <service name="Node">
>>           <binding.sca uri="http://localhost:8100"/>
>>       </service>
>>   </component>
>> </composite>
>>
>> --------------------
>>
>> A client program launches Node_fakeA, get the service
>> ComponentActrl/Tmp_double. The associated interface is :
>>
>> @Remotable
>> public interface Tmp_double {
>>
>>   void set_double(double val);
>>   void set_void();
>> }
>>
>> From the client program, the set_double(..) operation is called. It just
>> make a call of the same operation on ComponentActrl. But at this point, an
>> error occurs.
>>
>> Here is the relevant part of the Client program:
>>
>> public class ApplManagerWithFakeComp {
>>
>>   public static void main(String[] args) throws Exception {
>>            ....              // Create a fake_A node
>>           NodeLauncher launcher = NodeLauncher.newInstance();
>>           String configurationURI = "
>> http://localhost:9990/node-image/Node_fakeA";
>>                     SCANode2 node = launcher.createNode(configurationURI);
>>                         // Start the node
>>           try {
>>               node.getClass().getMethod("start").invoke(node);
>>                             } catch (Exception e) {
>>                                 System.err.println("SCA fakeCompA_node:
>> could not be started");
>>               throw e;
>>           }
>>
>>           System.out.println("SCA fakeCompA_node started. Test usage");
>>           SCAClient client = (SCAClient)node;
>>           Tmp_double prov_inA = client.getService(Tmp_double.class,
>> "FakeComponentA/Tmp_double");
>>                         if (prov_inA == null){
>>               System.err.println("Error: Getted service is
>> null!!!!!!!!!!!!!");
>>           }
>>                     // Do some computations
>>           System.out.println("test multiple task executions for three
>> inputs");                    System.out.println("set inA = 50");
>>           prov_inA.set_double(50);
>> /****************/
>>           System.out.println("set inA = 100");
>>           prov_inA.set_double(100);
>>  System.out.println("set inA  void");
>>           prov_inA.set_void();
>>      }
>> }
>>
>> **************************
>>
>> To execute the application, I launch the domain manager, Node_compA (it
>> starts normally) and then the client program. At the line marked by
>> /****************/ I obtain the following trace-error:
>>
>>
>> ant runAppl
>> Buildfile: build.xml
>>
>> runAppl:
>>    [java] Jul 3, 2008 12:23:03 PM
>> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>>    [java] INFO: Runtime classpath: 148 JARs from
>> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>>    [java] Jul 3, 2008 12:23:03 PM
>> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>>    [java] INFO: Runtime classpath: 93 JARs from
>> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>>    [java] Jul 3, 2008 12:23:03 PM
>> org.apache.tuscany.sca.node.impl.NodeImpl <init>
>>    [java] INFO: Creating node:
>> http://localhost:9990/node-image/Node_fakeA
>>    [java] Jul 3, 2008 12:23:04 PM
>> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>    [java] INFO: Loading contribution:
>> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>>    [java] Jul 3, 2008 12:23:05 PM
>> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>>    [java] INFO: Loading composite:
>> http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp
>>    [java] Jul 3, 2008 12:23:05 PM
>> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 problem
>>    [java] WARNING: Component reference target not found, it might be a
>> remote service: ComponentActrl/ActrlPorts
>>    [java] Jul 3, 2008 12:23:05 PM
>> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 problem
>>    [java] WARNING: Component reference target not found, it might be a
>> remote service: ComponentActrl/Tmp_double
>>    [java] Jul 3, 2008 12:23:05 PM
>> org.apache.tuscany.sca.node.impl.NodeImpl start
>>    [java] INFO: Starting node:
>> http://localhost:9990/node-image/Node_fakeA
>>    [java] Jul 3, 2008 12:23:08 PM org.apache.catalina.core.StandardEngine
>> start
>>    [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.ContextConfig defaultWebConfig
>>    [java] INFO: No default web.xml
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/jsp_2_0.xsd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/jsp_2_1.xsd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.catalina.startup.DigesterFactory register
>>    [java] WARNING: Could not get url for
>> /javax/servlet/resources/j2ee_web_services_1_1.xsd
>>    [java] Jul 3, 2008 12:23:09 PM org.apache.coyote.http11.Http11Protocol
>> init
>>    [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>>    [java] Jul 3, 2008 12:23:09 PM org.apache.coyote.http11.Http11Protocol
>> start
>>    [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>>    [java] INFO: Added Servlet mapping:
>> http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>>    [java] Jul 3, 2008 12:23:09 PM
>> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>>    [java] INFO: Added Servlet mapping:
>> http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>>    [java] SCA fakeCompA_node started. Test usage
>>    [java] test multiple task executions for three inputs
>>    [java] set inA = 50
>>    [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
>>    [java] INFO: An instance of fakeComponentA is created
>>    [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>>    [java] INFO: Wire fakeUseTmpPortA
>>    [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeCtrlA
>>    [java] INFO: Wire fakeCtrlPortsA
>>    [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
>>    [java] INFO: Set an input on component A
>>    [java] Exception in thread "main" org.osoa.sca.ServiceRuntimeException:
>> Target fault type cannot be resolved: null
>>    [java]     at
>> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>>
>>    [java]     at $Proxy6.set_double(Unknown Source)
>>    [java]     at fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>>    [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
>> Method)
>>    [java]     at
>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>>
>>    [java]     at
>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>>
>>    [java]     at java.lang.reflect.Method.invoke(Method.java:597)
>>    [java]     at
>> org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>>
>>    [java]     at
>> org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154)
>>
>>    [java]     at $Proxy6.set_double(Unknown Source)
>>    [java]     at
>> node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>>    [java] Caused by: org.apache.axis2.AxisFault: Connection refused
>>    [java]     at org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>>    [java]     at
>> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195)
>>    [java]     at
>> org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>>    [java]     at
>> org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327)
>>
>>    [java]     at
>> org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206)
>>
>>    [java]     at
>> org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>>    [java]     at
>> org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374)
>>
>>    [java]     at
>> org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211)
>>
>>    [java]     at
>> org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>>    [java]     at
>> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118)
>>
>>    [java]     at
>> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89)
>>
>>    [java]     at
>> org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104)
>>
>>    [java]     at
>> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78)
>>
>>    [java]     ... 16 more
>>    [java] Caused by: java.net.ConnectException: Connection refused
>>    [java]     at java.net.PlainSocketImpl.socketConnect(Native Method)
>>    [java]     at
>> java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>>    [java]     at
>> java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>>    [java]     at
>> java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>>    [java]     at
>> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>>    [java]     at java.net.Socket.connect(Socket.java:519)
>>    [java]     at java.net.Socket.connect(Socket.java:469)
>>    [java]     at java.net.Socket.<init>(Socket.java:366)
>>    [java]     at java.net.Socket.<init>(Socket.java:240)
>>    [java]     at
>> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79)
>>
>>    [java]     at
>> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121)
>>
>>    [java]     at
>> org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706)
>>    [java]     at
>> org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321)
>>
>>    [java]     at
>> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386)
>>
>>    [java]     at
>> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170)
>>
>>    [java]     at
>> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396)
>>    [java]     at
>> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346)
>>    [java]     at
>> org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520)
>>
>>    [java]     at
>> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191)
>>    [java]     ... 27 more
>>    [java] Java Result: 1
>>
>>
>> The trace on Node_compA is (I use a deamon approach to launch nodes):
>>
>>
>> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
>> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
>> Jul 3, 2008 12:22:28 PM node.GenericNode init
>> INFO: Node null: in init.
>> Jul 3, 2008 12:22:28 PM node.GenericNode start
>> INFO: Apache Tuscany SCA Node Node_compA starting...
>> Jul 3, 2008 12:22:28 PM
>> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>> INFO: Runtime classpath: 93 JARs from
>> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>> Jul 3, 2008 12:22:28 PM
>> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>> INFO: Runtime classpath: 148 JARs from
>> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>> Jul 3, 2008 12:22:28 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
>> INFO: Creating node: http://localhost:9990/node-image/Node_compA
>> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
>> INFO: CompositeURL :
>> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
>> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl
>> configureNode
>> INFO: Loading contribution:
>> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
>> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl
>> configureNode
>> INFO: Loading composite:
>> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp
>> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl start
>> INFO: Starting node: http://localhost:9990/node-image/Node_compA
>> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
>> Jul 3, 2008 12:22:35 PM
>> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
>> INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
>> Jul 3, 2008 12:22:35 PM
>> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
>> INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
>> Jul 3, 2008 12:22:35 PM node.GenericNode start
>> INFO: SCA Node Node_compA started.
>>
>>
>> ********
>>
>> in the trace, I expected a log message saying that an instance of a
>> ComponentActrl is created when FakeComponentA tries to use one of its
>> services. But it doesn't seem to be created!? At the same time I don't
>> understand how the wires of FakeComponentA references to ComponentActrl
>> services succeed
>>
>> [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>> [java] INFO: Wire fakeUseTmpPortA
>>
>> without an errors like component or reference not found.
>>
>> Am I wrong somewhere? Let me know if you need any additional information
>> (code/xml descriptions).
>>
>> Thank you for your help.
>> Hinde
>>
>>
Hi Hinde

As a matter of interest what happens if you replace the localhost string
with your actual local machine name in your local test?

A useful debugging aid would be to print out the generated composites that
both your nodes will run. You can get that by pointing your browser at URI
that the nodes use to load their composite, for example,

http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp

Take a look in there and see if the reference binding uris match the service
binding uris

Regards

Simon

Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Hinde Bouziane <hb...@irisa.fr>.
Hi all,
Trying to find an explanation to the problem, I executed the same 
application on a cluster using different machines. Except the names of 
the machines, I didn't change anything in the code/ xml descriptors. I 
had a successful execution :).

I'm stilling not understanding what locally happens. Can you give me an 
explanation?

Thank you,
regards,
Hinde

Hinde Bouziane wrote:
> Hi all,
> I'm trying to launch an application with the following distributed 
> architecture/configuration (with two nodes):
>
> **** ComponentA and ComponentActrl on Node_compA:
> node_compA.composite :
> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>           targetNamespace="http://sample"
>           xmlns:sample="http://sample"
>           name="Node_compA_comp">
>    <component name="ComponentA">
>        <implementation.java class="a_comp.A_Impl" />
>    </component>
>    <component name="ComponentActrl">
>        <implementation.java class="a_comp.A_ctrl" />
>        <reference name="userAtask" target="ComponentA" />
>    <service name="Tmp_double">
>      <interface.java interface="aSEQb.Tmp_double"/>
>    </service>
>    <service name="ActrlPorts">
>      <interface.java interface="a_comp.ActrlPorts"/>
>    </service>
>    </component>
> </composite>
>
> cloud/Node_compA.composite:
>
> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>        targetNamespace="http://sample/cloud"
>        xmlns:s="http://sample"
>        name="Node_compA">
>    <component name="Node_compA">
>        <t:implementation.node uri="node_compA" 
> composite="s:Node_compA_comp"/>
>        <service name="Node">
>            <binding.sca uri="http://localhost:8200"/>
>        </service>
>    </component>
> </composite>
>
> **** FakeComponentA on Node_fakeA
> node_fakeA.composite:
> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>           targetNamespace="http://sample"
>           xmlns:sample="http://sample"
>           name="Node_fakeA_comp">
>    <component name="FakeComponentA">
>        <implementation.java class="fake_comp.A_fake_Impl" />
>        <reference name="fakeUseA"  target="ComponentActrl/Tmp_double" />
>        <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts" />
>    </component>
> </composite>
>
> cloud/Node_fakeA.composite:
>
> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>        targetNamespace="http://sample/cloud"
>        xmlns:s="http://sample"
>        name="Node_fakeA">
>    <component name="Node_fakeA">
>        <t:implementation.node uri="node_fakeA" 
> composite="s:Node_fakeA_comp"/>
>        <service name="Node">
>            <binding.sca uri="http://localhost:8100"/>
>        </service>
>    </component>
> </composite>
>
> --------------------
>
> A client program launches Node_fakeA, get the service 
> ComponentActrl/Tmp_double. The associated interface is :
>
> @Remotable
> public interface Tmp_double {
>
>    void set_double(double val);
>    void set_void();
> }
>
> From the client program, the set_double(..) operation is called. It 
> just make a call of the same operation on ComponentActrl. But at this 
> point, an error occurs.
>
> Here is the relevant part of the Client program:
>
> public class ApplManagerWithFakeComp {
>
>    public static void main(String[] args) throws Exception {
>  
>           ....              // Create a fake_A node
>            NodeLauncher launcher = NodeLauncher.newInstance();
>            String configurationURI = 
> "http://localhost:9990/node-image/Node_fakeA";
>                      SCANode2 node = 
> launcher.createNode(configurationURI);
>                          // Start the node
>            try {
>                node.getClass().getMethod("start").invoke(node);
>                              } catch (Exception e) {
>                                  System.err.println("SCA 
> fakeCompA_node: could not be started");
>                throw e;
>            }
>
>            System.out.println("SCA fakeCompA_node started. Test usage");
>            SCAClient client = (SCAClient)node;
>            Tmp_double prov_inA = client.getService(Tmp_double.class, 
> "FakeComponentA/Tmp_double");
>                          if (prov_inA == null){
>                System.err.println("Error: Getted service is 
> null!!!!!!!!!!!!!");
>            }
>                      // Do some computations
>            System.out.println("test multiple task executions for three 
> inputs");                    System.out.println("set inA = 50");
>            prov_inA.set_double(50);                         
> /****************/
>            System.out.println("set inA = 100");
>            prov_inA.set_double(100);                    
> System.out.println("set inA  void");
>            prov_inA.set_void();
>       }
> }
>
> **************************
>
> To execute the application, I launch the domain manager, Node_compA 
> (it starts normally) and then the client program. At the line marked 
> by /****************/ I obtain the following trace-error:
>
>
> ant runAppl
> Buildfile: build.xml
>
> runAppl:
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>     [java] INFO: Runtime classpath: 148 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>     [java] INFO: Runtime classpath: 93 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl <init>
>     [java] INFO: Creating node: 
> http://localhost:9990/node-image/Node_fakeA
>     [java] Jul 3, 2008 12:23:04 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>     [java] INFO: Loading contribution: 
> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>     [java] INFO: Loading composite: 
> http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp 
>
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 
> problem
>     [java] WARNING: Component reference target not found, it might be 
> a remote service: ComponentActrl/ActrlPorts
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 
> problem
>     [java] WARNING: Component reference target not found, it might be 
> a remote service: ComponentActrl/Tmp_double
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl start
>     [java] INFO: Starting node: 
> http://localhost:9990/node-image/Node_fakeA
>     [java] Jul 3, 2008 12:23:08 PM 
> org.apache.catalina.core.StandardEngine start
>     [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.ContextConfig defaultWebConfig
>     [java] INFO: No default web.xml
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/jsp_2_0.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/jsp_2_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/resources/j2ee_web_services_1_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.coyote.http11.Http11Protocol init
>     [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.coyote.http11.Http11Protocol start
>     [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>     [java] INFO: Added Servlet mapping: 
> http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>     [java] INFO: Added Servlet mapping: 
> http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>     [java] SCA fakeCompA_node started. Test usage
>     [java] test multiple task executions for three inputs
>     [java] set inA = 50
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
>     [java] INFO: An instance of fakeComponentA is created
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>     [java] INFO: Wire fakeUseTmpPortA
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeCtrlA
>     [java] INFO: Wire fakeCtrlPortsA
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
>     [java] INFO: Set an input on component A
>     [java] Exception in thread "main" 
> org.osoa.sca.ServiceRuntimeException: Target fault type cannot be 
> resolved: null
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154) 
>
>     [java]     at $Proxy6.set_double(Unknown Source)
>     [java]     at fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>     [java]     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>
>     [java]     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
>
>     [java]     at java.lang.reflect.Method.invoke(Method.java:597)
>     [java]     at 
> org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154) 
>
>     [java]     at $Proxy6.set_double(Unknown Source)
>     [java]     at 
> node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>     [java] Caused by: org.apache.axis2.AxisFault: Connection refused
>     [java]     at 
> org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195) 
>
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>     [java]     at 
> org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327) 
>
>     [java]     at 
> org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206) 
>
>     [java]     at 
> org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>     [java]     at 
> org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374) 
>
>     [java]     at 
> org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211) 
>
>     [java]     at 
> org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>     [java]     at 
> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78) 
>
>     [java]     ... 16 more
>     [java] Caused by: java.net.ConnectException: Connection refused
>     [java]     at java.net.PlainSocketImpl.socketConnect(Native Method)
>     [java]     at 
> java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>     [java]     at 
> java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>     [java]     at 
> java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>     [java]     at 
> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>     [java]     at java.net.Socket.connect(Socket.java:519)
>     [java]     at java.net.Socket.connect(Socket.java:469)
>     [java]     at java.net.Socket.<init>(Socket.java:366)
>     [java]     at java.net.Socket.<init>(Socket.java:240)
>     [java]     at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79) 
>
>     [java]     at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706) 
>
>     [java]     at 
> org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346) 
>
>     [java]     at 
> org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520) 
>
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191) 
>
>     [java]     ... 27 more
>     [java] Java Result: 1
>
>
> The trace on Node_compA is (I use a deamon approach to launch nodes):
>
>
> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
> Jul 3, 2008 12:22:28 PM node.GenericNode init
> INFO: Node null: in init.
> Jul 3, 2008 12:22:28 PM node.GenericNode start
> INFO: Apache Tuscany SCA Node Node_compA starting...
> Jul 3, 2008 12:22:28 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
> INFO: Runtime classpath: 93 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
> Jul 3, 2008 12:22:28 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
> INFO: Runtime classpath: 148 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
> Jul 3, 2008 12:22:28 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
> INFO: Creating node: http://localhost:9990/node-image/Node_compA
> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
> INFO: CompositeURL : 
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp 
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl 
> configureNode
> INFO: Loading contribution: 
> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl 
> configureNode
> INFO: Loading composite: 
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp 
>
> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl start
> INFO: Starting node: http://localhost:9990/node-image/Node_compA
> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
> Jul 3, 2008 12:22:35 PM 
> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
> INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
> Jul 3, 2008 12:22:35 PM 
> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
> INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
> Jul 3, 2008 12:22:35 PM node.GenericNode start
> INFO: SCA Node Node_compA started.
>
>
> ********
>
> in the trace, I expected a log message saying that an instance of a 
> ComponentActrl is created when FakeComponentA tries to use one of its 
> services. But it doesn't seem to be created!? At the same time I don't 
> understand how the wires of FakeComponentA references to 
> ComponentActrl services succeed
>
> [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
> [java] INFO: Wire fakeUseTmpPortA
>
> without an errors like component or reference not found.
>
> Am I wrong somewhere? Let me know if you need any additional 
> information (code/xml descriptions).
>
> Thank you for your help.
> Hinde
>


Re: Problem (urgent): component inctances creation on nodes / multiple services?

Posted by Hinde Bouziane <hb...@irisa.fr>.
Hi all,
Trying to find an explanation to the problem, I executed the same 
application on a cluster using different machines. Except the names of 
the machines, I didn't change anything in the code/ xml descriptors. I 
had a successful execution :).

I'm stilling not understanding what locally happens. Can you give me an 
explanation?

Thank you,
regards,
Hinde

Hinde Bouziane wrote:
> Hi all,
> I'm trying to launch an application with the following distributed 
> architecture/configuration (with two nodes):
>
> **** ComponentA and ComponentActrl on Node_compA:
> node_compA.composite :
> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>           targetNamespace="http://sample"
>           xmlns:sample="http://sample"
>           name="Node_compA_comp">
>    <component name="ComponentA">
>        <implementation.java class="a_comp.A_Impl" />
>    </component>
>    <component name="ComponentActrl">
>        <implementation.java class="a_comp.A_ctrl" />
>        <reference name="userAtask" target="ComponentA" />
>    <service name="Tmp_double">
>      <interface.java interface="aSEQb.Tmp_double"/>
>    </service>
>    <service name="ActrlPorts">
>      <interface.java interface="a_comp.ActrlPorts"/>
>    </service>
>    </component>
> </composite>
>
> cloud/Node_compA.composite:
>
> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>        targetNamespace="http://sample/cloud"
>        xmlns:s="http://sample"
>        name="Node_compA">
>    <component name="Node_compA">
>        <t:implementation.node uri="node_compA" 
> composite="s:Node_compA_comp"/>
>        <service name="Node">
>            <binding.sca uri="http://localhost:8200"/>
>        </service>
>    </component>
> </composite>
>
> **** FakeComponentA on Node_fakeA
> node_fakeA.composite:
> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0"
>           targetNamespace="http://sample"
>           xmlns:sample="http://sample"
>           name="Node_fakeA_comp">
>    <component name="FakeComponentA">
>        <implementation.java class="fake_comp.A_fake_Impl" />
>        <reference name="fakeUseA"  target="ComponentActrl/Tmp_double" />
>        <reference name="fakeCtrlA" target="ComponentActrl/ActrlPorts" />
>    </component>
> </composite>
>
> cloud/Node_fakeA.composite:
>
> <composite    xmlns="http://www.osoa.org/xmlns/sca/1.0"
>        xmlns:t="http://tuscany.apache.org/xmlns/sca/1.0"
>        targetNamespace="http://sample/cloud"
>        xmlns:s="http://sample"
>        name="Node_fakeA">
>    <component name="Node_fakeA">
>        <t:implementation.node uri="node_fakeA" 
> composite="s:Node_fakeA_comp"/>
>        <service name="Node">
>            <binding.sca uri="http://localhost:8100"/>
>        </service>
>    </component>
> </composite>
>
> --------------------
>
> A client program launches Node_fakeA, get the service 
> ComponentActrl/Tmp_double. The associated interface is :
>
> @Remotable
> public interface Tmp_double {
>
>    void set_double(double val);
>    void set_void();
> }
>
> From the client program, the set_double(..) operation is called. It 
> just make a call of the same operation on ComponentActrl. But at this 
> point, an error occurs.
>
> Here is the relevant part of the Client program:
>
> public class ApplManagerWithFakeComp {
>
>    public static void main(String[] args) throws Exception {
>  
>           ....              // Create a fake_A node
>            NodeLauncher launcher = NodeLauncher.newInstance();
>            String configurationURI = 
> "http://localhost:9990/node-image/Node_fakeA";
>                      SCANode2 node = 
> launcher.createNode(configurationURI);
>                          // Start the node
>            try {
>                node.getClass().getMethod("start").invoke(node);
>                              } catch (Exception e) {
>                                  System.err.println("SCA 
> fakeCompA_node: could not be started");
>                throw e;
>            }
>
>            System.out.println("SCA fakeCompA_node started. Test usage");
>            SCAClient client = (SCAClient)node;
>            Tmp_double prov_inA = client.getService(Tmp_double.class, 
> "FakeComponentA/Tmp_double");
>                          if (prov_inA == null){
>                System.err.println("Error: Getted service is 
> null!!!!!!!!!!!!!");
>            }
>                      // Do some computations
>            System.out.println("test multiple task executions for three 
> inputs");                    System.out.println("set inA = 50");
>            prov_inA.set_double(50);                         
> /****************/
>            System.out.println("set inA = 100");
>            prov_inA.set_double(100);                    
> System.out.println("set inA  void");
>            prov_inA.set_void();
>       }
> }
>
> **************************
>
> To execute the application, I launch the domain manager, Node_compA 
> (it starts normally) and then the client program. At the line marked 
> by /****************/ I obtain the following trace-error:
>
>
> ant runAppl
> Buildfile: build.xml
>
> runAppl:
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>     [java] INFO: Runtime classpath: 148 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
>     [java] INFO: Runtime classpath: 93 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
>     [java] Jul 3, 2008 12:23:03 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl <init>
>     [java] INFO: Creating node: 
> http://localhost:9990/node-image/Node_fakeA
>     [java] Jul 3, 2008 12:23:04 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>     [java] INFO: Loading contribution: 
> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_fakeA/
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl configureNode
>     [java] INFO: Loading composite: 
> http://localhost:9990/composite-resolved/composite:node_fakeA;http://sample;Node_fakeA_comp 
>
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 
> problem
>     [java] WARNING: Component reference target not found, it might be 
> a remote service: ComponentActrl/ActrlPorts
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.assembly.builder.impl.CompositeBuilderImpl$1 
> problem
>     [java] WARNING: Component reference target not found, it might be 
> a remote service: ComponentActrl/Tmp_double
>     [java] Jul 3, 2008 12:23:05 PM 
> org.apache.tuscany.sca.node.impl.NodeImpl start
>     [java] INFO: Starting node: 
> http://localhost:9990/node-image/Node_fakeA
>     [java] Jul 3, 2008 12:23:08 PM 
> org.apache.catalina.core.StandardEngine start
>     [java] INFO: Starting Servlet Engine: Apache Tomcat/6.0.14
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.ContextConfig defaultWebConfig
>     [java] INFO: No default web.xml
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/jsp_2_0.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/jsp_2_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_1_1.dtd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_1_2.dtd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_2_0.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/jsp/resources/web-jsptaglibrary_2_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.catalina.startup.DigesterFactory register
>     [java] WARNING: Could not get url for 
> /javax/servlet/resources/j2ee_web_services_1_1.xsd
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.coyote.http11.Http11Protocol init
>     [java] INFO: Initializing Coyote HTTP/1.1 on http-8100
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.coyote.http11.Http11Protocol start
>     [java] INFO: Starting Coyote HTTP/1.1 on http-8100
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>     [java] INFO: Added Servlet mapping: 
> http://localhost.localdomain:8100/FakeComponentA/ActrlPorts
>     [java] Jul 3, 2008 12:23:09 PM 
> org.apache.tuscany.sca.http.tomcat.TomcatServer addServletMapping
>     [java] INFO: Added Servlet mapping: 
> http://localhost.localdomain:8100/FakeComponentA/Tmp_double
>     [java] SCA fakeCompA_node started. Test usage
>     [java] test multiple task executions for three inputs
>     [java] set inA = 50
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl <init>
>     [java] INFO: An instance of fakeComponentA is created
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
>     [java] INFO: Wire fakeUseTmpPortA
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeCtrlA
>     [java] INFO: Wire fakeCtrlPortsA
>     [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl set_double
>     [java] INFO: Set an input on component A
>     [java] Exception in thread "main" 
> org.osoa.sca.ServiceRuntimeException: Target fault type cannot be 
> resolved: null
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:134) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154) 
>
>     [java]     at $Proxy6.set_double(Unknown Source)
>     [java]     at fake_comp.A_fake_Impl.set_double(A_fake_Impl.java:54)
>     [java]     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native 
> Method)
>     [java]     at 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
>
>     [java]     at 
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
>
>     [java]     at java.lang.reflect.Method.invoke(Method.java:597)
>     [java]     at 
> org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:109) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.sca.impl.SCABindingInvoker.invoke(SCABindingInvoker.java:61) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.PassByValueInterceptor.invoke(PassByValueInterceptor.java:108) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:286) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.invocation.JDKInvocationHandler.invoke(JDKInvocationHandler.java:154) 
>
>     [java]     at $Proxy6.set_double(Unknown Source)
>     [java]     at 
> node.ApplManagerWithFakeComp.main(ApplManagerWithFakeComp.java:78)
>     [java] Caused by: org.apache.axis2.AxisFault: Connection refused
>     [java]     at 
> org.apache.axis2.AxisFault.makeFault(AxisFault.java:417)
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:195) 
>
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:77)
>     [java]     at 
> org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:327) 
>
>     [java]     at 
> org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:206) 
>
>     [java]     at 
> org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:396)
>     [java]     at 
> org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:374) 
>
>     [java]     at 
> org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:211) 
>
>     [java]     at 
> org.apache.axis2.client.OperationClient.execute(OperationClient.java:163)
>     [java]     at 
> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invokeTarget(Axis2BindingInvoker.java:118) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingInvoker.invoke(Axis2BindingInvoker.java:89) 
>
>     [java]     at 
> org.apache.tuscany.sca.binding.sca.axis2.impl.Axis2SCABindingInvoker.invoke(Axis2SCABindingInvoker.java:104) 
>
>     [java]     at 
> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:78) 
>
>     [java]     ... 16 more
>     [java] Caused by: java.net.ConnectException: Connection refused
>     [java]     at java.net.PlainSocketImpl.socketConnect(Native Method)
>     [java]     at 
> java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
>     [java]     at 
> java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
>     [java]     at 
> java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
>     [java]     at 
> java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
>     [java]     at java.net.Socket.connect(Socket.java:519)
>     [java]     at java.net.Socket.connect(Socket.java:469)
>     [java]     at java.net.Socket.<init>(Socket.java:366)
>     [java]     at java.net.Socket.<init>(Socket.java:240)
>     [java]     at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:79) 
>
>     [java]     at 
> org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:121) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:706) 
>
>     [java]     at 
> org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1321) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:386) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:170) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:396) 
>
>     [java]     at 
> org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:346) 
>
>     [java]     at 
> org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:520) 
>
>     [java]     at 
> org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:191) 
>
>     [java]     ... 27 more
>     [java] Java Result: 1
>
>
> The trace on Node_compA is (I use a deamon approach to launch nodes):
>
>
> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
> 03/07/2008 12:22:28 13792 jsvc.exec error: syscall failed in set_caps
> Jul 3, 2008 12:22:28 PM node.GenericNode init
> INFO: Node null: in init.
> Jul 3, 2008 12:22:28 PM node.GenericNode start
> INFO: Apache Tuscany SCA Node Node_compA starting...
> Jul 3, 2008 12:22:28 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
> INFO: Runtime classpath: 93 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/modules
> Jul 3, 2008 12:22:28 PM 
> org.apache.tuscany.sca.node.launcher.NodeLauncherUtil collectJARFiles
> INFO: Runtime classpath: 148 JARs from 
> /local/hbouzian/PostDoc/src/sca/tuscany-sca-1.2-incubating/lib
> Jul 3, 2008 12:22:28 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
> INFO: Creating node: http://localhost:9990/node-image/Node_compA
> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl <init>
> INFO: CompositeURL : 
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp 
> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> Jul 3, 2008 12:22:30 PM org.apache.tuscany.sca.node.impl.NodeImpl 
> configureNode
> INFO: Loading contribution: 
> file:/local/hbouzian/workspace/AseqBAppl/./src/main/resources/node_compA/
> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl 
> configureNode
> INFO: Loading composite: 
> http://localhost:9990/composite-resolved/composite:node_compA;http://sample;Node_compA_comp 
>
> Jul 3, 2008 12:22:32 PM org.apache.tuscany.sca.node.impl.NodeImpl start
> INFO: Starting node: http://localhost:9990/node-image/Node_compA
> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
> Warning: Running an XSLT 1.0 stylesheet with an XSLT 2.0 processor
> Jul 3, 2008 12:22:35 PM 
> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
> INFO: Added Servlet mapping: /ComponentActrl/Tmp_double
> Jul 3, 2008 12:22:35 PM 
> org.apache.tuscany.sca.host.webapp.WebAppServletHost addServletMapping
> INFO: Added Servlet mapping: /ComponentActrl/ActrlPorts
> Jul 3, 2008 12:22:35 PM node.GenericNode start
> INFO: SCA Node Node_compA started.
>
>
> ********
>
> in the trace, I expected a log message saying that an instance of a 
> ComponentActrl is created when FakeComponentA tries to use one of its 
> services. But it doesn't seem to be created!? At the same time I don't 
> understand how the wires of FakeComponentA references to 
> ComponentActrl services succeed
>
> [java] Jul 3, 2008 12:23:09 PM fake_comp.A_fake_Impl setfakeUseA
> [java] INFO: Wire fakeUseTmpPortA
>
> without an errors like component or reference not found.
>
> Am I wrong somewhere? Let me know if you need any additional 
> information (code/xml descriptions).
>
> Thank you for your help.
> Hinde
>