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verdyan · Posted: Tue May 01, 2007 7:37 am Post subject:

Hello all,

I have a following scenario:

There a message flow that routes XML messages to multiple queues. This flow parses message with XMLNS parser then decides based on root tag and some of its attributes where to route it and writes it with MRM dictionary (by setting OutputRoot.Properties.MessegaSet, MessageType and MessageFormat). Couple weeks ago we ran into XML messages with \n between xml declaration and root tag, spaces between tags and spaces at the end of the document after root tag close. Now we have a problem handling this kind of messages with XMLNS parser because InputRoot.XML.*[<] doesnot points to the root tag of the message (I don't know why) and it is difficult to find the root tag in the message tree. The debugger shows a correct message tree, but Trace node shows that after xml decl tag there is a \n element and last child of XMLNS is bunch of spaces.
We tried to use XMLNSC parser which handles this situations nicely, but has other issue. When we recevice a message with an empty attribure i.e. <myTag/> it is parsed to message tree without a type.(all others receives CHARACTER type). Because of this element which has no type defined, MRM parser cannot write the message at the end of the flow. XMLNS assigns type even to the empty element.

The only thing we came up with so far is to parse the message as BLOB at the MQInput node, remove trailing whitespaces and \n, then ResetContentDescriptor to XMLNS. But it still doesnot solve the \n between tags problem.

I'd like to use XMLNSC parser for this, so maybe someone has an idea how to make XMLNSC assign types to empty elements.
Any other solution to above problems will be nice.

Thanks,

Alex

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