On 17 Dec 2007, at 09:40, Clark, Stephen wrote:
Hi Michele,
Thanks for all your help.
I have had a look through the WSDL for the web service I am connecting
to and it does not contain a UsingAddressing element so I don't think
that it supports WS-Addressing.
In this situation wouldn't it be better for Axis to return an error to
the effect that WS-Addressing is not supported on the server?
The problem is on the server side (.NET, right?), not on the client
side.
Additionally, do you know of any public web services that support
WS-Addressing that I can test my client against?
No, but I would give a try to Google/Amazon/Yahoo WS.
Michele
Thanks
Steve
-----Original Message-----
From: Michele Mazzucco [mailto:[EMAIL PROTECTED]
Sent: 14 December 2007 15:58
To: [email protected]
Subject: Re: NonBlockingDual Client Question
On 14 Dec 2007, at 14:57, Clark, Stephen wrote:
Michele,
How do I look at the logs on the server? It is not a service that I
have any internal access to. Are there any tools you can recommend
for me to use to look on the server?
Ah, it looks like the only option you have is to proxy your client
with
tools like tcpmon [1]. This way you'll find out where the problem is.
Note that the sample works OK when using a single transport, it is
only when I set 'options.setUseSeparateListener(true);' that the
problem occurs.
hmmm... this could happen because in order to use a separate listener
(i.e. 2 http connections) both sides (i.e. client and server) must use
WS-addressing. Do you know whether the service WS-addressing enabled?
Michele
[1] http://ws.apache.org/commons/tcpmon/index.html
Thanks
Steve
-----Original Message-----
From: Michele Mazzucco [mailto:[EMAIL PROTECTED]
Sent: 14 December 2007 14:50
To: [email protected]
Subject: Re: NonBlockingDual Client Question
On 14 Dec 2007, at 14:05, Clark, Stephen wrote:
Michele,
Thanks for the quick response and the pointers.
I think that in this case the soap action is correct since the WSDL
has the following statement in it:
<soap:operation
soapAction="http://www.webserviceX.NET/GetUKLocationByTown";
style="document" />
In terms of hanging, it is my client that is waiting on the callback
to complete that appears to be suspended. Do you know of an
external
web service that works when running the NonBlockingDual client with
an
asynchronous transport? The service that I am currently connecting
to
is written in .NET so it may be that other options need to be set in
Axis in order for it to work correctly using two transports.
Are you sure that the request is executed on the service side? Any
log/error on the server?
Michele
Thanks for your help,
Steve
-----Original Message-----
From: Michele Mazzucco [mailto:[EMAIL PROTECTED]
Sent: 14 December 2007 09:49
To: [email protected]
Subject: Re: NonBlockingDual Client Question
Steve,
what do you mean by hang?, does the service wait forever?, what
happens on the server side, any log?
Maybe it won't fix your problem, but here are a couple of advices:
- the soap action usually starts with "urn:" and it's followed by
the
operation name
- in the finally block you change the state of your sender object,
which may be null
Michele
On 14 Dec 2007, at 09:13, Clark, Stephen wrote:
All,
I am new to Axis and have been trying to update the NonBlockingDual
client to use Transport Asynchrony for a specific web service. The
example works OK if i do not use a separate listener but as soon as
I set options.setUseSeparateListener(true); and run the example it
simply hangs. I am using the default axis2.xml file supplied with
the
userguide samples. I have included the source code at the end of
this
e-mail.
Is there anything I am doing that is obviously wrong?
Thanks
Steve
package userguide.clients;
import org.apache.axiom.om.OMAbstractFactory;
import org.apache.axiom.om.OMElement; import
org.apache.axiom.om.OMFactory; import
org.apache.axiom.om.OMNamespace;
import org.apache.axis2.AxisFault;
import org.apache.axis2.Constants;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options; import
org.apache.axis2.client.ServiceClient;
import org.apache.axis2.client.async.AsyncResult;
import org.apache.axis2.client.async.Callback;
import javax.xml.namespace.QName;
/**
* Sample for asynchronous dual channel non-blocking service
invocation.
* Message Exchage Pattern IN-OUT
* Ulitmate asynchronous service invocation sample.
*/
public class EchoNonBlockingDualClient {
private static EndpointReference targetEPR = new
EndpointReference("http://www.webservicex.net/uklocation.asmx";);
public static void main(String[] args) {
ServiceClient sender = null;
try {
OMFactory fac = OMAbstractFactory.getOMFactory();
OMNamespace ns = fac.createOMNamespace("http://
www.webserviceX.NET", "");
OMElement method = fac.createOMElement
("GetUKLocationByTown", ns);
OMElement value = fac.createOMElement("Town", ns);
value.setText("Coventry");
method.addChild(value);
Options options = new Options();
options.setTo(targetEPR);
options.setTransportInProtocol
(Constants.TRANSPORT_HTTP);
options.setAction("http://www.webserviceX.NET/
GetUKLocationByTown");
options.setTimeOutInMilliSeconds(60000);
options.setUseSeparateListener(true);
//Callback to handle the response
Callback callback = new Callback() {
public void onComplete(AsyncResult result) {
System.out.println(result.getResponseEnvelope
());
}
public void onError(Exception e) {
e.printStackTrace();
}
};
//Non-Blocking Invocation
sender = new ServiceClient();
sender.setOptions(options);
sender.engageModule(Constants.MODULE_ADDRESSING);
sender.sendReceiveNonBlocking(method, callback);
//Wait till the callback receives the response.
while (!callback.isComplete()) {
Thread.sleep(1000);
}
//Need to close the Client Side Listener.
} catch (AxisFault axisFault) {
axisFault.printStackTrace();
} catch (Exception ex) {
ex.printStackTrace();
} finally {
try {
sender.cleanup();
} catch (AxisFault axisFault) {
//have to ignore this
}
}
}
}
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