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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » How to parse BLOB in custom node (plug-in) ?

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harrisjc
PostPosted: Thu Jan 31, 2002 10:55 am    Post subject: Reply with quote

Newbie

Joined: 29 Jan 2002
Posts: 3
I am writing a custom node that takes a BLOB as input and manipulates the BLOB data . I would then like to parse the BLOB, and create an XML tree for propagation to the next node. I want to do this BLOB manipulation and parsing in the same custom node.

In other words I want to do what the ResetContentDescriptor node does but do it in a custom node using the API.

How can I do this ?
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mpuetz
PostPosted: Mon Feb 04, 2002 8:55 am    Post subject: Reply with quote

Centurion

Joined: 05 Jul 2001
Posts: 149
Location: IBM/Central WebSphere Services
Hi,

AFAIK, you can't rewrite the functionality of a ResetContentDescriptor
with the current API, since there is no call which allows you to
force a reparse of the message buffer. I tried do this myself once
and failed.

You could do the following however:
Make sure you message comes in as BLOB.
Get the the buffer from the Root.BLOB.BLOB element
and modify it. Place a ResetContentDescriptor behind
your node and reparse as XML.



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Mathias Puetz

IBM/Central WebSphere Services
WebSphere Business Integration Specialist
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harrisjc
PostPosted: Tue Feb 05, 2002 8:56 am    Post subject: Reply with quote

Newbie

Joined: 29 Jan 2002
Posts: 3
I was afraid of that.

Thanks for the reply, now I can stop trying.

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Jeff Harris

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