10.21. Web Service Extensions

10.21.1. WS-Addressing

This section describes how WS-Addressing can be used to provide a stateful service endpoint.

10.21.1.1. Specifications

WS-Addressing is defined by a combination of the following specifications from the W3C Recommendation. The WS-Addressing API is standardized by JSR-224 - Java API for XML-Based Web Services (JAX-WS)

10.21.1.2. Addressing Endpoint

Note

The following information should not be used in conjunction with JBoss Web Services CXF Stack.
The following endpoint implementation has a set of operation for a typical stateful shopping chart application. 
@WebService(name = "StatefulEndpoint", targetNamespace = "http://org.jboss.ws/samples/wsaddressing", serviceName = "TestService")
@Addressing(enabled=true, required=true)
@SOAPBinding(style = SOAPBinding.Style.RPC)
public class StatefulEndpointImpl implements StatefulEndpoint, ServiceLifecycle
{
   @WebMethod
   public void addItem(String item)
   { ... }
  
   @WebMethod
   public void checkout()
   { ... }
  
   @WebMethod
   public String getItems()
   { ... }
}
It uses the JAX-WS 2.1 defined javax.xml.ws.soap.Addressing annotation to enable the server side addressing handler.

10.21.1.3. Addressing Client

The client code uses javax.xml.ws.soap.AddressingFeature feature from JAX-WS 2.1 API to enable the WS-Addressing. 
Service service = Service.create(wsdlURL, serviceName);
port1 = (StatefulEndpoint)service.getPort(StatefulEndpoint.class,  new AddressingFeature());
A client connecting to the stateful endpoint 
public class AddressingStatefulTestCase extends JBossWSTest
{
   ...
   public void testAddItem() throws Exception
   {
      port1.addItem("Ice Cream");
      port1.addItem("Ferrari");
  
      port2.addItem("Mars Bar");
      port2.addItem("Porsche");
   }
  
   public void testGetItems() throws Exception
   {
      String items1 = port1.getItems();
      assertEquals("[Ice Cream, Ferrari]", items1);
  
      String items2 = port2.getItems();
      assertEquals("[Mars Bar, Porsche]", items2);
   }
}
SOAP message exchange
Below you see the SOAP messages that are being exchanged. 
<env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'>
<env:Header xmlns:wsa='http://schemas.xmlsoap.org/ws/2004/08/addressing'>
<wsa:To>uri:jbossws-samples-wsaddr/TestService</wsa:To>
<wsa:Action>http://org.jboss.ws/addressing/stateful/action</wsa:Action>
<wsa:ReferenceParameters>
<ns1:clientid xmlns:ns1='http://somens'>clientid-1</ns1:clientid>
</wsa:ReferenceParameters>
</env:Header>
<env:Body>
<ns1:addItem xmlns:ns1='http://org.jboss.ws/samples/wsaddr'>
<String_1>Ice Cream</String_1>
</ns1:addItem>
</env:Body>
</env:Envelope>
  
<env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'>
<env:Header xmlns:wsa='http://schemas.xmlsoap.org/ws/2004/08/addressing'>
<wsa:To>http://www.w3.org/2005/08/addressing/anonymous</wsa:To>
<wsa:Action>http://org.jboss.ws/addressing/stateful/actionReply</wsa:Action>
<ns1:clientid xmlns:ns1='http://somens'>clientid-1</ns1:clientid>
</env:Header>
<env:Body>
<ns1:addItemResponse xmlns:ns1='http://org.jboss.ws/samples/wsaddr'/>
</env:Body>
</env:Envelope>
  
...
  
<env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'>
<env:Header xmlns:wsa='http://schemas.xmlsoap.org/ws/2004/08/addressing'>
<wsa:To>uri:jbossws-samples-wsaddr/TestService</wsa:To>
<wsa:Action>http://org.jboss.ws/addressing/stateful/action</wsa:Action>
<wsa:ReferenceParameters>
<ns1:clientid xmlns:ns1='http://somens'>clientid-1</ns1:clientid>
</wsa:ReferenceParameters>
</env:Header>
<env:Body>
<ns1:getItems xmlns:ns1='http://org.jboss.ws/samples/wsaddr'/>
</env:Body>
</env:Envelope>
  
<env:Envelope xmlns:env='http://schemas.xmlsoap.org/soap/envelope/'>
<env:Header xmlns:wsa='http://schemas.xmlsoap.org/ws/2004/08/addressing'>
<wsa:To>http://www.w3.org/2005/08/addressing/anonymous</wsa:To>
<wsa:Action>http://org.jboss.ws/addressing/stateful/actionReply</wsa:Action>
<ns1:clientid xmlns:ns1='http://somens'>clientid-1</ns1:clientid>
</env:Header>
<env:Body>
<ns1:getItemsResponse xmlns:ns1='http://org.jboss.ws/samples/wsaddr'>
<result>[Ice Cream, Ferrari]</result>
</ns1:getItemsResponse>
</env:Body>
</env:Envelope>