Inbound proxy with attachments.

Question

We've created an inbound proxy.  The inbound message has an attachment.  How do I get access to it, within the inbound proxy method?
I've got this from the various helps and blogs:
  DATA: lt_attach    TYPE prx_attach,
        l_name       TYPE string,
        l_xstring    TYPE xstring,
        l_string     TYPE string,
        l_type       TYPE string,
        l_attachment TYPE REF TO if_ai_attachment,
DATA: lr_controller TYPE REF TO if_wsprotocol_attachments.
* Get attachments
  lr_controller = cl_wsprotocol_attachments=>get_protocol( ).
  lt_attach = lr_controller->get_attachments( ).
  LOOP AT lt_attach INTO l_attachment.
But lt_attach is always empty. 
Any ideas?
Thanks
matt
Edited by: Matt on Mar 23, 2009 4:15 PM

Answer 1

OK, I got it.  I needed the server context in order to get the attachments
New code:
  DATA: lr_attachments TYPE REF TO if_wsprotocol_attachments.
  DATA:  lr_server_context   TYPE REF TO if_ws_server_context.
  lr_server_context = cl_proxy_access=>get_server_context( ).
  lr_attachments ?=
       lr_server_context->get_protocol( if_wsprotocol=>attachments ).
  lt_attach = lr_attachments->get_attachments( ).
* instantiate Attachment
  LOOP AT lt_attach INTO l_attachment.
The final clue came from [here|http://help.sap.com/saphelp_nw70/helpdata/en/51/d5cd16235e4643ae8ec92395c4ad97/frameset.htm]
Thanks for you help though
matt.