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Posted to java-user@axis.apache.org by Michael Merz <mm...@bea.com> on 2004/12/14 19:12:20 UTC
Question on user exception handling on autogenerated clients
Bcc: beehive-dev@incubator.apache.org
I'm autogenerating my clients using the wsdl2java ant task. It's working
really well.
One question regarding exception handling, though: When the server
throws a custom exception (subclass of java.lang.Exception), how does
the autogenerated client propagate the results in the response to the
caller? I had a look at the generated code and couldn't find any hooks
(see below). Is this not yet implemented? Thanks much.
Cheers,
-michael
public int throwFooException(int in0) throws
java.rmi.RemoteException,
org.apache.beehive.wsm.test.rpclit.FooException {
if (super.cachedEndpoint == null) {
throw new org.apache.axis.NoEndPointException();
}
org.apache.axis.client.Call _call = createCall();
_call.setOperation(_operations[0]);
_call.setUseSOAPAction(true);
_call.setSOAPActionURI("");
_call.setEncodingStyle(null);
_call.setProperty(org.apache.axis.client.Call.SEND_TYPE_ATTR,
Boolean.FALSE);
_call.setProperty(org.apache.axis.AxisEngine.PROP_DOMULTIREFS,
Boolean.FALSE);
_call.setSOAPVersion(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS
);
_call.setOperationName(new
javax.xml.namespace.QName("http://rpclit.test.wsm.beehive.apache.org",
"throwFooException"));
setRequestHeaders(_call);
setAttachments(_call);
java.lang.Object _resp = _call.invoke(new java.lang.Object[]
{new java.lang.Integer(in0)});
if (_resp instanceof java.rmi.RemoteException) {
throw (java.rmi.RemoteException)_resp;
}
else {
extractAttachments(_call);
try {
return ((java.lang.Integer) _resp).intValue();
} catch (java.lang.Exception _exception) {
return ((java.lang.Integer)
org.apache.axis.utils.JavaUtils.convert(_resp, int.class)).intValue();
}
}
}
Re: Question on user exception handling on autogenerated clients
Posted by Davanum Srinivas <da...@gmail.com>.
pls check the test/wsdl/faults example.
-- dims
On Tue, 14 Dec 2004 10:12:20 -0800, Michael Merz <mm...@bea.com> wrote:
> Bcc: beehive-dev@incubator.apache.org
>
> I'm autogenerating my clients using the wsdl2java ant task. It's working
> really well.
>
> One question regarding exception handling, though: When the server
> throws a custom exception (subclass of java.lang.Exception), how does
> the autogenerated client propagate the results in the response to the
> caller? I had a look at the generated code and couldn't find any hooks
> (see below). Is this not yet implemented? Thanks much.
>
> Cheers,
>
> -michael
>
> public int throwFooException(int in0) throws
> java.rmi.RemoteException,
> org.apache.beehive.wsm.test.rpclit.FooException {
> if (super.cachedEndpoint == null) {
> throw new org.apache.axis.NoEndPointException();
> }
> org.apache.axis.client.Call _call = createCall();
> _call.setOperation(_operations[0]);
> _call.setUseSOAPAction(true);
> _call.setSOAPActionURI("");
> _call.setEncodingStyle(null);
> _call.setProperty(org.apache.axis.client.Call.SEND_TYPE_ATTR,
> Boolean.FALSE);
> _call.setProperty(org.apache.axis.AxisEngine.PROP_DOMULTIREFS,
> Boolean.FALSE);
>
> _call.setSOAPVersion(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS
> );
> _call.setOperationName(new
> javax.xml.namespace.QName("http://rpclit.test.wsm.beehive.apache.org",
> "throwFooException"));
>
> setRequestHeaders(_call);
> setAttachments(_call);
> java.lang.Object _resp = _call.invoke(new java.lang.Object[]
> {new java.lang.Integer(in0)});
>
> if (_resp instanceof java.rmi.RemoteException) {
> throw (java.rmi.RemoteException)_resp;
> }
> else {
> extractAttachments(_call);
> try {
> return ((java.lang.Integer) _resp).intValue();
> } catch (java.lang.Exception _exception) {
> return ((java.lang.Integer)
> org.apache.axis.utils.JavaUtils.convert(_resp, int.class)).intValue();
> }
> }
> }
>
>
--
Davanum Srinivas - http://webservices.apache.org/~dims/
Re: Question on user exception handling on autogenerated clients
Posted by Davanum Srinivas <da...@gmail.com>.
pls check the test/wsdl/faults example.
-- dims
On Tue, 14 Dec 2004 10:12:20 -0800, Michael Merz <mm...@bea.com> wrote:
> Bcc: beehive-dev@incubator.apache.org
>
> I'm autogenerating my clients using the wsdl2java ant task. It's working
> really well.
>
> One question regarding exception handling, though: When the server
> throws a custom exception (subclass of java.lang.Exception), how does
> the autogenerated client propagate the results in the response to the
> caller? I had a look at the generated code and couldn't find any hooks
> (see below). Is this not yet implemented? Thanks much.
>
> Cheers,
>
> -michael
>
> public int throwFooException(int in0) throws
> java.rmi.RemoteException,
> org.apache.beehive.wsm.test.rpclit.FooException {
> if (super.cachedEndpoint == null) {
> throw new org.apache.axis.NoEndPointException();
> }
> org.apache.axis.client.Call _call = createCall();
> _call.setOperation(_operations[0]);
> _call.setUseSOAPAction(true);
> _call.setSOAPActionURI("");
> _call.setEncodingStyle(null);
> _call.setProperty(org.apache.axis.client.Call.SEND_TYPE_ATTR,
> Boolean.FALSE);
> _call.setProperty(org.apache.axis.AxisEngine.PROP_DOMULTIREFS,
> Boolean.FALSE);
>
> _call.setSOAPVersion(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS
> );
> _call.setOperationName(new
> javax.xml.namespace.QName("http://rpclit.test.wsm.beehive.apache.org",
> "throwFooException"));
>
> setRequestHeaders(_call);
> setAttachments(_call);
> java.lang.Object _resp = _call.invoke(new java.lang.Object[]
> {new java.lang.Integer(in0)});
>
> if (_resp instanceof java.rmi.RemoteException) {
> throw (java.rmi.RemoteException)_resp;
> }
> else {
> extractAttachments(_call);
> try {
> return ((java.lang.Integer) _resp).intValue();
> } catch (java.lang.Exception _exception) {
> return ((java.lang.Integer)
> org.apache.axis.utils.JavaUtils.convert(_resp, int.class)).intValue();
> }
> }
> }
>
>
--
Davanum Srinivas - http://webservices.apache.org/~dims/
Re: Question on user exception handling on autogenerated clients
Posted by TMG <tm...@nc.rr.com>.
Michael,
The server services throw a RemoteException, that's what you "catch" in
the client. If a handler, either before or after the service is called,
throws an exception, it is usually an AxisFault.
Tom Gordon
Michael Merz wrote:
>Bcc: beehive-dev@incubator.apache.org
>
>I'm autogenerating my clients using the wsdl2java ant task. It's working
>really well.
>
>One question regarding exception handling, though: When the server
>throws a custom exception (subclass of java.lang.Exception), how does
>the autogenerated client propagate the results in the response to the
>caller? I had a look at the generated code and couldn't find any hooks
>(see below). Is this not yet implemented? Thanks much.
>
>Cheers,
>
>-michael
>
> public int throwFooException(int in0) throws
>java.rmi.RemoteException,
>org.apache.beehive.wsm.test.rpclit.FooException {
> if (super.cachedEndpoint == null) {
> throw new org.apache.axis.NoEndPointException();
> }
> org.apache.axis.client.Call _call = createCall();
> _call.setOperation(_operations[0]);
> _call.setUseSOAPAction(true);
> _call.setSOAPActionURI("");
> _call.setEncodingStyle(null);
> _call.setProperty(org.apache.axis.client.Call.SEND_TYPE_ATTR,
>Boolean.FALSE);
> _call.setProperty(org.apache.axis.AxisEngine.PROP_DOMULTIREFS,
>Boolean.FALSE);
>
>_call.setSOAPVersion(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS
>);
> _call.setOperationName(new
>javax.xml.namespace.QName("http://rpclit.test.wsm.beehive.apache.org",
>"throwFooException"));
>
> setRequestHeaders(_call);
> setAttachments(_call);
> java.lang.Object _resp = _call.invoke(new java.lang.Object[]
>{new java.lang.Integer(in0)});
>
> if (_resp instanceof java.rmi.RemoteException) {
> throw (java.rmi.RemoteException)_resp;
> }
> else {
> extractAttachments(_call);
> try {
> return ((java.lang.Integer) _resp).intValue();
> } catch (java.lang.Exception _exception) {
> return ((java.lang.Integer)
>org.apache.axis.utils.JavaUtils.convert(_resp, int.class)).intValue();
> }
> }
> }
>
>
>
>
RE: Question on user exception handling on autogenerated clients
Posted by Choi Jongjin <gu...@hotmail.com>.
Hi, Michael.
Handling service-specific exception is implemented in Axis.
In the generated code,
> java.lang.Object _resp = _call.invoke(new java.lang.Object[]
>{new java.lang.Integer(in0)});
>
> if (_resp instanceof java.rmi.RemoteException) {
> throw (java.rmi.RemoteException)_resp;
> }
> else {
AFAIK, _call.invoke() returns RemoteException (AxisFault) for propagated
soap fault (server-side exception).
But Axis's implementation lacks of JAX-RPC 1.1 compatibility.
The generated exception classes are derived classes of AxisFault and
require default constructor and setters which are not required in JAX-RPC
1.1.
I guess this causes some problem.
If you use JAX-RPC 1.1 compliant exception classes (which have not default
constructor
and setter methods) in the client side, the deserialization of SOAP Fault
message would fail.
I will add other comments in JIRA BEEHIVE-133.
/Jongjin
>From: "Michael Merz" <mm...@bea.com>
>Reply-To: "Beehive Developers" <be...@incubator.apache.org>
>To: <ax...@ws.apache.org>
>CC: <di...@apache.org>
>Subject: Question on user exception handling on autogenerated clients
>Date: Tue, 14 Dec 2004 10:12:20 -0800
>
>Bcc: beehive-dev@incubator.apache.org
>
>I'm autogenerating my clients using the wsdl2java ant task. It's working
>really well.
>
>One question regarding exception handling, though: When the server
>throws a custom exception (subclass of java.lang.Exception), how does
>the autogenerated client propagate the results in the response to the
>caller? I had a look at the generated code and couldn't find any hooks
>(see below). Is this not yet implemented? Thanks much.
>
>Cheers,
>
>-michael
>
> public int throwFooException(int in0) throws
>java.rmi.RemoteException,
>org.apache.beehive.wsm.test.rpclit.FooException {
> if (super.cachedEndpoint == null) {
> throw new org.apache.axis.NoEndPointException();
> }
> org.apache.axis.client.Call _call = createCall();
> _call.setOperation(_operations[0]);
> _call.setUseSOAPAction(true);
> _call.setSOAPActionURI("");
> _call.setEncodingStyle(null);
> _call.setProperty(org.apache.axis.client.Call.SEND_TYPE_ATTR,
>Boolean.FALSE);
> _call.setProperty(org.apache.axis.AxisEngine.PROP_DOMULTIREFS,
>Boolean.FALSE);
>
>_call.setSOAPVersion(org.apache.axis.soap.SOAPConstants.SOAP11_CONSTANTS
>);
> _call.setOperationName(new
>javax.xml.namespace.QName("http://rpclit.test.wsm.beehive.apache.org",
>"throwFooException"));
>
> setRequestHeaders(_call);
> setAttachments(_call);
> java.lang.Object _resp = _call.invoke(new java.lang.Object[]
>{new java.lang.Integer(in0)});
>
> if (_resp instanceof java.rmi.RemoteException) {
> throw (java.rmi.RemoteException)_resp;
> }
> else {
> extractAttachments(_call);
> try {
> return ((java.lang.Integer) _resp).intValue();
> } catch (java.lang.Exception _exception) {
> return ((java.lang.Integer)
>org.apache.axis.utils.JavaUtils.convert(_resp, int.class)).intValue();
> }
> }
> }
>