javax.xml.rpc.handler to work with Spring

[davsclaus]

Hi

I need to do some programatic processing before a SOAP message is sent and thus I use javax.xml.rpc.handler.GenericHandler.

My code works fine if I do not use any Spring related Remoting support = using plain Axis generated code based on a .wsdl file.

However if I use org.springframework.remoting.jaxrpc.JaxRpcPortProx yFactoryBean

my handler is never invoked even though I register the handler excatly the same way as I will do it with pure Axis code.

I am pasting some snipets here:

Spring.xml

	<bean id="ediWS" class="dk.webfragt.access.edi.EDIWebServiceFactory">
		<property name="serviceInterface">
			<value>dk.webfragt.access.edi.Version</value>
		</property>
		<property name="wsdlDocumentUrl">
			<value>http&#58;//localhost&#58;8181/axis/services/Version?wsdl</value>
		</property>
		<property name="namespaceUri">
			<value>http&#58;//localhost&#58;8181/axis/services/Version</value>
		</property>
		<property name="serviceName">
			<value>VersionService</value>
		</property>
		<property name="portName">
			<value>Version</value>
		</property>
	</bean>

And my factory that registers my handler in the postProcessJaxRpcService.

public class EDIWebServiceFactory extends JaxRpcPortProxyFactoryBean {

	protected void postProcessJaxRpcService(Service service) {
		logger.debug("XXX Setting Handler on Port - START");
		List list = service.getHandlerRegistry().getHandlerChain(new QName("Version"));
		list.add(new HandlerInfo(EDIHeaderHandler.class, null, null));
		logger.debug("XXX Setting Handler on Port - DONE");
	}

}

When I do this my handler is never invoked and thus the SOAP message can't be modified in my handler before sending it to the remote server. If I use pure Axis my handler is invoked.


If I use this pure Axis code it works

		logger.debug("Getting EDI JAX-RPC service at " + url);
		ECBroker2Locator loc = new ECBroker2Locator(); 
		broker = loc.geteCBrokerIFPort(new URL(url));
		logger.debug("Got EDI JAX-RPC service");
		
		logger.debug("Setting Handler on Port - START");
		Service jax = (Service) loc;
		List list = jax.getHandlerRegistry().getHandlerChain(new QName("eCBrokerIFPort"));
		list.add(new HandlerInfo(EDIHeaderHandler.class, null, null));
		logger.debug("Setting Handler on Port - DONE");
	}

Where the code ECBroker2Locator is auto generated by Axis.[/code]



And from my tomcat log

main 10 jan 2005 14:36:02 DEBUG dk.webfragt.access.edi.EDIWebServiceFactory - Creating JAX-RPC service [VersionService]
main 10 jan 2005 14:36:03 INFO  dk.webfragt.access.edi.EDIWebServiceFactory - JAX-RPC service [VersionService] created
main 10 jan 2005 14:36:03 DEBUG dk.webfragt.access.edi.EDIWebServiceFactory - XXX Setting Handler on Port - START +++
main 10 jan 2005 14:36:04 DEBUG dk.webfragt.access.edi.EDIWebServiceFactory - XXX Setting Handler on Port - DONE
main 10 jan 2005 14:36:04 INFO  dk.webfragt.access.edi.EDIWebServiceFactory - Using service interface [dk.webfragt.access.edi.Version] for JAX-RPC object [{http://localhost:8181/axis/services/Version}Version] -  directly implemented
main 10 jan 2005 14:36:04 DEBUG dk.webfragt.access.edi.EDIDao - Setting service

The JAX-RPC service is created fine and the handler is registered (I hope so because I do not get any exceptions)

And when I run the webservice I get the response from the remote server

http8080-Processor4 10 jan 2005 14:36:18 DEBUG dk.webfragt.access.edi.EDIDao - Getting version +++
return from WS: Apache Axis version: 1.1
Built on Jun 13, 2003 (09:19:43 EDT)

But my handler is never invoked - I have a System.out call and a logger output too but nothing in the tomcat log. I also checked with DEBUG level for apache.axis but the SOAP message did not contain my modifications.

[davsclaus]

Okay

I started digging into the problem. Setup IDEA to remote debug Tomcat and added Axis source files so I could see what is going on.

I discovered that Axis was expecting the QName to be including the namespaceURI.

So instead of just "Version" it should be "{http://localhost:8181/axis/services/Version}/Version"

So when I changed my code to:

public class EDIWebServiceFactory extends JaxRpcPortProxyFactoryBean {

	protected void postProcessJaxRpcService(Service service) {
        QName port = new QName(this.getNamespaceUri(), this.getPortName());
		List list = service.getHandlerRegistry().getHandlerChain(port);
		list.add(new HandlerInfo(EDIHeaderHandler.class, null, null));

		logger.info("Registered JAX-RPC Handler [" + EDIHeaderHandler.class.getName() + "] on port " + port);
	}

}

It worked nicely.