Hi Brian,
Let's see how to access this SOAP message inside Axis2.
MessageContext messageContext; // if you are within a handler, reference to
the message context
object will be passed to you through Handler.invoke(MessageContext) method.
SOAPEnvelope soapEnvelope = messageContext.getEnvelope();
Now we have access to the AXIOM model of the SOAP message. The AXIOM SOAP API
provides convenient methods to navigate inside the SOAP message. The
SOAPEnvelope.getBody() and SOAPEnvelope.getHeader() methods give you access to
the SOAP body and the SOAP header of the message respectively. (For more
information on SOAP API of AXIOM, refer to the Axiom article.) Sometimes you
might also need to add a new header or new XML element to the message,
especially if you are writing a handler. How do we do this? You use the AXIOM
API to create these XML elements.
1. OMFactory omFactory = soapEnvelope.getOMFactory();
2. OMElement newElement = factory.createOMElement("FooElement", null);
3. soapEnvelope.getBody().addChild(newElement);
All the OMElements should be created using a factory (as shown in the first
line). The reason is that AXIOM has a couple of different implementations. The
basic implementation is based on a linked list object model. The other model
that is used when WS-Security is enabled is called DOOM. DOOM implements DOM
API on top of AXIOM API, providing DOM capabilities on AXIOM. Since these
implementations can be switched within the Axis2 engine, transparent to the
user, we store the factory in which the OMElements are created, within them.
Since we have the choice of two factories to use, we need to know which one to
use when we are trying to add a new element to the existing SOAP message. The
easiest way is to ask for the factory from the SOAP envelope, by which it was
created. All the OMElements have a pointer to the factory they are created,
within them. If you do not do this, you may encounter exceptions when your
modified message is traversing through the Axis2 engine.
Then you need to create an OMElement as usual using OM API (line 2). Then add
that as a child to the SOAP body (line 3). If you want to add an element to the
SOAP header, the easiest method is to use the following method inside the SOAP
header element. This helper method will take care of getting the proper
factory, creating the OMElement and adding that to the SOAP envelope.
SOAPHeader.addHeaderBlock(String localName, OMNamespace ns)
Regards Krishantha.
-----Original Message-----
From: Brian Reinhold [mailto:[email protected]]
Sent: Thursday, October 25, 2012 1:51 PM
To: [email protected]
Subject: Axis2 deployment: obtain the full SOAP message
To all Axis2 fans,
What is the easiest way to obtain the full SOAP message or the messageContext
object in an Axis2 deployment. Typically all that one gets in one's service is
the body of the SOAP message as an OMElement. I need to get the full message,
in particular the SAML token.
Brian
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