Hi

You dont have to use the aggregator in the splitter.
You could just route each splitted message to a file endpoint and have
it append the target file.



On Tue, Jul 6, 2010 at 11:31 AM, Christian Mueller
<christian.muel...@gmail.com> wrote:
>
> Hello dev,
>
> at present, I use Camel 2.2-fuse-02-00 (inside FUSE ESB 4.2-fuse-02-00) and
> plan to upgrade to 2.3-fuse-01-00 if it's available.
>
> I have a requirement to read big fixed length files (up to 500 MB), split
> the content in individual messages, process/transform these messages into
> xml, aggregate all transformed messages and than write it into a new file.
>
> My questions are about the aggregator:
> - If I use the 'streaming()' option in the splitter, is the
> 'CamelSplitComplete' exchange property the best strategy to detect in the
> aggregator that all messages are processed? Requires this, that I can not
> process/transform the individual messages in parallel? My understanding is
> also, that I can not use the 'completionFromBatchConsumer' option in the
> aggregator, because it use the 'CamelBatchSize' header which is not set in
> streaming mode. Do you see other options?
> - My understanding is, that the aggregation is done in memory and not made
> for aggregating big messages (500 MB or so). Would it be useful/possible to
> extend the aggregator to stream the content into a file (may be with a
> header and a footer)? Or should this part of a custom aggregating strategy?
> - Another solution could be to store all transformed messages into
> individual files and after all messages are processed, the aggregation
> strategy kicks in a custom processor which read all files in stream it into
> a new (big) file.
> - Do you see other solutions for this?
>
> May be a good topic for the wiki, what I could write...
>
> Regards,
> Christian
> --
> View this message in context: 
> http://camel.465427.n5.nabble.com/Splitting-big-files-and-aggregate-the-big-responses-tp858166p858166.html
> Sent from the Camel Development mailing list archive at Nabble.com.
>



-- 
Claus Ibsen
Apache Camel Committer

Author of Camel in Action: http://www.manning.com/ibsen/
Open Source Integration: http://fusesource.com
Blog: http://davsclaus.blogspot.com/
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