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KoGor · Posted: Wed Dec 28, 2016 1:46 pm Post subject:

Hi all!

I've quite a challenge task (for me) to solve with a WMB. There is an automated system that send a large zip file to WMB by WMQ (MQ Group used). Inside this zip there are routing info and description of files in archive. [img]http://take.ms/hn7sj[/img]

Route.xml contains sender and reciepient addresses.
Envelope.xml contains descripition of attached files (size, properies and etc)
Attached files can be also zip container with envelope.xml but we don't extract them, they are just files to WMB.

Attached file can be large - about 2-4GB (scanned documents).

Tasks for WMB:

1) get a MQ message (one big Zip file ) from one queue;
2) Extract only Route.xml and Envelope.xml;
3) Find routes in DB based on addresses from Route.xml
4) Put a message to DB
5) Propagate a message to several queues.

I have sugested using MIME as a container as soon as it supported by WMB instead of ZIP archive. With a MIME also there is a way to send binary data without encoding. But customer don't want to use MIME and want to use ZIP.

So the question is how to handle zip file inside message flow. Is there way to extract only route an envelope.xml and do not load whole message to memmory? May be there is a better way to handle such large files with a broker? Anyone had solved a similar problem with a large files in a broker?

Also I 've found information that it's not possible to handle more than 2GB message in WMB.

http://www.ibm.com/developerworks/websphere/library/techarticles/1601_crighton-trs/1601_crighton.html

Thank you in advance!