Simple example project that demonstrates using Camel to listen for a new file arriving, then extracting metadata from the file and using Freemarker to insert that into a template.
This demo was initially set up on windows. It can run on any environment - but needs to following config setting up for your system before running (in application-camel-context.xml):
c:/data/in/ c:/data/tmp/
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Download project
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Create directory structure outlined above (to use a different structure - update application-camel-context.xml)
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In a terminal window - cd to the root directory (where pom.xml is) - type 'mvn camel:run'. This will start up an instance of camel/activemq.
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Drop a file into 'c:/data/in' directory. What will happen is:
- File is moved to c:/data/tmp directory
- The filename is extracted, and merged into the Freemarker template (which produces XML)
- A JMS Object Message is created containing this XML, and placed onto the OutputQueue
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Camel tracing is enabled so you will be able to view all the properties passes around by Camel.
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This demo could be extended to add a Queue Listener to pick the message from the queue (see the https://github.com/corsoft/esper-demo-nuclear demo for an example of how to do this).