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Old 11-15-2011, 01:42 PM
DavidL DavidL is offline
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Default filters before transformers? or, deleting segments?

I'm working on a project where our notifications arrive via delimited text files.

I need to route the message based on the file contents. I know how to do that; I have a filter working already.

But, in order for the filter to work, I basically have to parse the file contents.
Which I'm doing again in a transformer in the secondary channel anyway.

My first thought was, OK, I'll add a transformer. But, based on what I've seen here and the tutorials, I would guess that filters execute before transformers, in which case this would not work ... is that correct?

My second thought was, I could just fold most or all of the transformer into the filter, i.e. alter the message contents in the filter, before calling router.routeMessage() (if I decide to call it, that is).
And I can in fact get the new / transformed information into the message. However, I don't seem to be able to remove the 'delimited' segment.

I'm sure I can find a workaround ... but I'd like to do this correctly. And parsing the file contents twice (even if the files are small) is certainly less than optimal, so I'm not starting out well
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delimited, filter, segment, transform

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