JMS如何读取队列中的多个文件

Question

The application that I am working on listens to a queue. This queue receives multiple files(Buy/Sell order) from upstream. I am new to this application and trying to underatnsd how multiple files are process. We are using camel to listen to the queue. I understand that camel listens to the queue and when a file comes in it reads it and routes it to a java file to process it. My question is meanwhile a second or 100 messages arrives on the queue. How are these multiple files handles..would camel spawn a new thread to keep listening to messages while other thread routes it??

Answer 1

Would camel spawn a new thread to keep listening to messages while other thread routes it?

This depends on your camel jms consumer setup for concurrentConsumers and maxConcurrentConsumers .

concurrentConsumers specify the initial number of concurrent consumer (listener thread/caller thread) for the route. Similarly, maxConcurrentConsumers specify the maximum number of concurrent consumer for the route.

Camel will spawn a new thread for the jms route if maxConcurrentConsumers > concurrentConsumers and hit the limit for consumers.