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https://issues.apache.org/activemq/browse/CAMEL-1371?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=50558#action_50558
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Claus Ibsen commented on CAMEL-1371:
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Martin. Feel free to go ahead. And no I do not mind if its a bit resequence
specific.
And thank for the details about the ExpressionResultComparator.
> Resequencer - stream - add predicate to allow me to supply my own gap
> detection
> -------------------------------------------------------------------------------
>
> Key: CAMEL-1371
> URL: https://issues.apache.org/activemq/browse/CAMEL-1371
> Project: Apache Camel
> Issue Type: New Feature
> Components: camel-core
> Reporter: Claus Ibsen
> Fix For: Future
>
>
> The resequencer stream based uses Long for gap detection as Camel then knows
> if there is a gap if eg a number in between is missing.
> However sometimes you can not convert/compute a Long that is in sequence
> based on your needs.
> Imagine you consume files from a folder and want them to be resequenced so
> you process them in the correct order.
> The file names have this pattern: YYYYMMDD-DNNN.txt. Where YYYYMMDD is the
> date pattern and D is a fixed string and NNN is a numeric value for that
> particular day.
> Eg: 20090223-D001.txt, 20090223-D002.txt ...
> So if we could add a predicate to the resequencer where I could impl. the gap
> detection, then I would be able to do:
> {code}
> from("file://inbox").resequence(header("CamelFileName")).gapPredicate(new
> MyGapPredicate()).timeout(60000).to("bean:processFileInSequence");
> {code}
> Where *gapPredicate* is the new feature. Think about a better name for it,
> than gap predicate!!
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