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• filePoller - periodically checks the "inbox" directory and recursively scans subdirectories for new files. If there is a file present, it converts the file into a normalized message and sends it over the Normalized Message Router (NMR) to the fileSender component.
• fileSender - this component listens for normalized messages. The messages it receives are the files that filePoller has transferred to it via the NMR. It converts the normalized message to its original file format by processing it and sending it to the destination directory, in this case the outbox directory.
• workManager - this bean is used by the filePoller to increase the throughput of the application. The workManager is a thread pool whose size can be adjusted declaratively in the servicemix.xml file. The workManager processes the workingSet. The workingSet is the collection of files to be transfered.

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