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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