Add look for mark file feature to file consumer
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Key: CAMEL-3163
URL: https://issues.apache.org/activemq/browse/CAMEL-3163
Project: Apache Camel
Issue Type: New Feature
Components: camel-core, camel-ftp
Affects Versions: 2.4.0
Reporter: Claus Ibsen
Priority: Minor
Fix For: 2.6.0
Its still common to transfer data using files and using a marker file when the
data is ready.
We should have a feature on the file consumer, so it can be used to scan for
marker files, and then use the real file as the message body.
And then when its done it can delete/move both files.
The problem is how to define an easy way of correlating the marker file to the
real file. We can use an Expression for that.
For example maybe something like, (use better option names)
{{realFile=${file:name.noext}.csv&filter=*.ready}}
Then Camel will react when there is a .ready file in the folder. And evaluate
the expression and see if a file with that result exists.
When it's done the marker file should be deleted, and the real file should be
moved using the existing options for that.
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