Force MTOM Response in JBossWS-3.1.1.GA

[fambad]

Hi,

How can I force a MOTOM Response although it is not neccessary because I have no binary data in the response.

The reason is follow. I have a foreign test client that sends the request with MTOM enabled and expected that the response is also using MTOM (I think this is a little bit stupid). The client is using AXIS.

In the request the client sends binary data using MTOM but in my response no binary data is available and so JBoss-WS won't enable the Mtom Feature for the response. The result is that the client don't accept my response.

All works fine when my response contains binary data (annotated with "@XmlMimeType("application/octet-stream")" ). Then JBoss-WS creates a mtom response and the client accepted the response.

Is there a workaround to force that MTOM is being enabled?

[fambad]

I have found a workaround for this problem by my own.

I have added a response handler to the webservice that add a dummy attachment part to the soap message and activate mtom using the method org.jboss.ws.extensions.xop.XOPContext#setMTOMEnabled(true) and declare the message as a XOP Message. That's all.

Code Sample:

public boolean handleMessage( MessageContext msgContext ) {

....

... // decide if outbound and other code left out....

....

     org.jboss.ws.core.soap.SOAPMessage msg = ((SOAPMessageContext) msgContext).getMessage();

     org.jboss.ws.core.CommonMessageContext cmCtx = (org.jboss.ws.core.CommonMessageContext) msgContext;

     ByteArrayDataSource DUMMY_PLAIN_DATA_SOURCE;

     DUMMY_PLAIN_DATA_SOURCE = new ByteArrayDataSource( "DUMMY_ATTACHMENT_TO_FORCE_MTOM_RESPONSE", "text/plain" );

     msg.addAttachmentPart( msg.createAttachmentPart( new DataHandler( DUMMY_PLAIN_DATA_SOURCE ) ) );

    ((SOAPMessageImpl) msg).setXOPMessage( true );

     Scope lastScope = cmCtx.getCurrentScope();

     cmCtx.setCurrentScope( Scope.APPLICATION );

     XOPContext.setMTOMEnabled( true );

     cmCtx.setCurrentScope( lastScope );

...

}