Common gotchas with folder and filenames - 6.3

Talend ESB Mediation Developer Guide

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6.3
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Talend Data Fabric
Talend Data Services Platform
Talend ESB
Talend MDM Platform
Talend Open Studio for ESB
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task
Design and Development
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Talend ESB

When Camel is producing files (writing files) there are a few gotchas affecting how to set a filename of your choice. By default, Camel will use the message ID as the filename, and since the message ID is normally a unique generated ID, you will end up with filenames such as: ID-MACHINENAME-2443-1211718892437-1-0 . If such a filename is not desired, then you must provide a filename in the CamelFileName message header. The constant, Exchange.FILE_NAME, can also be used.

The sample code below produces files using the message ID as the filename:

from("direct:report").to("file:target/reports");

To use report.txt as the filename you have to do:

from("direct:report").setHeader(Exchange.FILE_NAME, constant("report.txt"))
   .to( "file:target/reports");

... the same as above, but with CamelFileName :

from("direct:report").setHeader("CamelFileName", constant("report.txt"))
   .to( "file:target/reports");

An example of a syntax where we set the filename on the endpoint with the fileName URI option:

from("direct:report").to("file:target/reports/?fileName=report.txt");