Transferring files using message queue.

In this approach we transfer the files to different target using message queue.

Here we can treat the file content as a message. We should have a  publisher process which read the file from destination and publish the content into the queue .Also this process archive and deletes the files from the source after successful publishing. Subscriber process listen to the queue and send the file to the destination.

We can use topic to publish the messages if more than one subscriber needs to send the file to several targets.

Use Case

 Use this pattern, when you can leverage a messaging system and when your file size is small. Also you can consider to use this approach when more number of subscribers are expected to be added in later stage.

Benefits:  Flexible design pattern. New consumer process can be added for each new target without impacting existing process. Maintainability is high.

 Disadvantage: You need messaging system to implement this. Also you may not transfer big file.