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Posted to xmlrpc-dev@ws.apache.org by "Bit Buzzer (JIRA)" <xm...@ws.apache.org> on 2006/07/18 15:01:13 UTC
[jira] Created: (XMLRPC-95) Client hangs on execute
Client hangs on execute
-----------------------
Key: XMLRPC-95
URL: http://issues.apache.org/jira/browse/XMLRPC-95
Project: XML-RPC
Issue Type: Bug
Components: Releases
Affects Versions: 3.0b1
Environment: Win XP
Java 1.5.0_06
Reporter: Bit Buzzer
Problem description:
When this server is running and the client is executed, nothing happens.
The client hangs on the "execute" statement, and neither of them throws any exception or message.
No indication what goes wrong or were the problem exists.
Server code:
###################################################
import java.io.IOException;
import org.apache.xmlrpc.XmlRpcException;
import org.apache.xmlrpc.common.TypeConverterFactoryImpl;
import org.apache.xmlrpc.server.DynamicHandlerMapping;
import org.apache.xmlrpc.server.XmlRpcServerConfigImpl;
import org.apache.xmlrpc.webserver.WebServer;
public class RpcServer {
static int port = 3099;
private WebServer server;
public static void main(String[] args) {
new RpcServer();
}
public RpcServer(){
try {
server = new WebServer(port);
XmlRpcServerConfigImpl config = new XmlRpcServerConfigImpl();
config.setEnabledForExtensions(true);
config.setContentLengthOptional(true);
DynamicHandlerMapping dhm = new DynamicHandlerMapping(new TypeConverterFactoryImpl(), false);
dhm.addHandler("Start", this.getClass());
server.getXmlRpcServer().setConfig(config);
server.getXmlRpcServer().setHandlerMapping(dhm);
server.start();
System.out.println("RPC server running. ");
}
catch (XmlRpcException e) {
System.out.println("RPC EXcep");
e.printStackTrace();
}
catch (IOException e) {
System.out.println("IO EXcep");
e.printStackTrace();
}
}
public int loginUser(String userId ) {
System.out.println("In de method");
return 0;
}
}
###################################################
Server includes following jars:
- commons-logging-1.1.jar
- ws-commons-util-1.0-SNAPSHOT.jar
- xmlrpc-common-3.0b1.jar
- xmlrpc-server-3.0b1.jar
Client code:
###################################################
import java.net.URL;
import java.util.List;
import java.util.Vector;
import org.apache.xmlrpc.client.XmlRpcClient;
import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;
public class RpcClient {
static XmlRpcClient xmlrpc;
public static void main( String args[] ) {
try {
List<String> params = new Vector<String>();
params.add( "48504852" );
XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
config.setServerURL(new URL("http://192.168.1.1:3099/"));
config.setEnabledForExtensions(true);
config.setContentLengthOptional(true);
xmlrpc = new XmlRpcClient();
xmlrpc.setConfig(config);
Integer r = (Integer) xmlrpc.execute ("Start.loginUser", params);
System.out.println(r);
} catch (Exception e) {
e.printStackTrace();
}
}
}
###################################################
Client includes following jars:
- ws-commons-util-1.0-SNAPSHOT.jar
- xmlrpc-common-3.0b1.jar
- xmlrpc-client-3.0b1.jar
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[jira] Closed: (XMLRPC-95) Client hangs on execute
Posted by "Jochen Wiedmann (JIRA)" <xm...@ws.apache.org>.
[ http://issues.apache.org/jira/browse/XMLRPC-95?page=all ]
Jochen Wiedmann closed XMLRPC-95.
---------------------------------
Resolution: Invalid
Ok, here is your fault:
The class you give to the DynamicHandlerMapping is no other than your own RpcServer(). Now, when a request comes in, an instance of RpcServer is created, in order to call its method "loginUser". In other words: The constructor of RpcServer is executed before the loginUser method. In particular, a new instance of WebServer with port 3099 is created.
However, this port is no longer free: A first instance of WebServer was already created (the instance, which is currently accepting the request), thus the port 3099 is blocked and the constructor waits ... and waits ... until the port might be free or a timeout occurs.
Fix: Create a new class (for example "LoginHandler") with a default constructor, move the "loginUser" method to that class and replace the RpcServer.class in the handler mapping with "LoginHandler". That's all.
> Client hangs on execute
> -----------------------
>
> Key: XMLRPC-95
> URL: http://issues.apache.org/jira/browse/XMLRPC-95
> Project: XML-RPC
> Issue Type: Bug
> Components: Releases
> Affects Versions: 3.0b1
> Environment: Win XP
> Java 1.5.0_06
> Reporter: Bit Buzzer
>
> Problem description:
> When this server is running and the client is executed, nothing happens.
> The client hangs on the "execute" statement, and neither of them throws any exception or message.
> No indication what goes wrong or were the problem exists.
> Server code:
> ###################################################
> import java.io.IOException;
> import org.apache.xmlrpc.XmlRpcException;
> import org.apache.xmlrpc.common.TypeConverterFactoryImpl;
> import org.apache.xmlrpc.server.DynamicHandlerMapping;
> import org.apache.xmlrpc.server.XmlRpcServerConfigImpl;
> import org.apache.xmlrpc.webserver.WebServer;
> public class RpcServer {
> static int port = 3099;
> private WebServer server;
>
> public static void main(String[] args) {
> new RpcServer();
> }
>
> public RpcServer(){
> try {
> server = new WebServer(port);
> XmlRpcServerConfigImpl config = new XmlRpcServerConfigImpl();
> config.setEnabledForExtensions(true);
> config.setContentLengthOptional(true);
>
> DynamicHandlerMapping dhm = new DynamicHandlerMapping(new TypeConverterFactoryImpl(), false);
> dhm.addHandler("Start", this.getClass());
>
> server.getXmlRpcServer().setConfig(config);
> server.getXmlRpcServer().setHandlerMapping(dhm);
>
> server.start();
>
> System.out.println("RPC server running. ");
> }
> catch (XmlRpcException e) {
> System.out.println("RPC EXcep");
> e.printStackTrace();
> }
> catch (IOException e) {
> System.out.println("IO EXcep");
> e.printStackTrace();
> }
> }
>
> public int loginUser(String userId ) {
> System.out.println("In de method");
> return 0;
> }
> }
> ###################################################
> Server includes following jars:
> - commons-logging-1.1.jar
> - ws-commons-util-1.0-SNAPSHOT.jar
> - xmlrpc-common-3.0b1.jar
> - xmlrpc-server-3.0b1.jar
> Client code:
> ###################################################
> import java.net.URL;
> import java.util.List;
> import java.util.Vector;
> import org.apache.xmlrpc.client.XmlRpcClient;
> import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;
> public class RpcClient {
> static XmlRpcClient xmlrpc;
>
> public static void main( String args[] ) {
> try {
> List<String> params = new Vector<String>();
> params.add( "48504852" );
>
> XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
> config.setServerURL(new URL("http://192.168.1.1:3099/"));
> config.setEnabledForExtensions(true);
> config.setContentLengthOptional(true);
>
> xmlrpc = new XmlRpcClient();
> xmlrpc.setConfig(config);
> Integer r = (Integer) xmlrpc.execute ("Start.loginUser", params);
> System.out.println(r);
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> }
> ###################################################
> Client includes following jars:
> - ws-commons-util-1.0-SNAPSHOT.jar
> - xmlrpc-common-3.0b1.jar
> - xmlrpc-client-3.0b1.jar
--
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