Question

I have an interface that I’ve exposed as a regular SOAP web service. One method of the interface consists for the client to send a file to the server, then the server processes the file and returns a result file. Processing the file may take some time, so I think using asynchronous invocation of this method is a better idea. I thought about the following flow:

The client invokes the asynchronous method and sends the file using an attachment (MTOM).
When the file is received by the server, a response is sent back to the client indicating that the file has been received and that it will be processed shortly.
Once the file is processes, a response is sent back to the client indicating it has been processed and a result file is returned in the response also as an attachment.

Is it possible using SOAP with CXF?

Thanks

Answer 1

You can use Callback approach of Asynchronous InvocationModel.

Callback approach – in this case, to invoke the remote operation, you
call another special method that takes a reference to a callback
object (of javax.xml.ws.AsyncHandler type) as one of its parameters.
Whenever the response message arrives at the client, the CXF runtime
calls back on the AsyncHandler object to give it the contents of the
response message

More information can be had from the following:

Apache CXF