Hi,
I am new to web service and AXIS2 engine. I have a basic doubt about the
asynchronous web service AXIS2 provides. Does it provide a complete
asynchronous communication? I have seen the following code in AXIS2 site, the
client basically waits until a response comes from server. Comparing this with
JMS/MQ communication, the client does not wait when a message is put in the
queue and a seperate a seperate MDB picks up the response when send by server.
try {
OMElement payload = ClientUtil.getEchoOMElement();
Options options = new Options();
options.setTo(targetEPR);
options.setTransportInProtocol(Constants.TRANSPORT_HTTP);
options.setUseSeparateListener(true);
options.setAction("urn:echo"); // this is the action mapping we
put within the service.xml
//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.engageModule(new QName(Constants.MODULE_ADDRESSING));
sender.setOptions(options);
sender.sendReceiveNonBlocking(payload, 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
}
}
Can somebody share with me a sample asynchronous web service client code using
AXIS2 1.3?
Thanks and Regards,
Chiradeep
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