What would be the easiest way to implement a custom Inbound Channel Adapter?

Question

I need a custom adapter which polls a custom resource. (It returns a List of File.)

Is it able to implement and use it in spring integration?

What would be the best practice of implementing such a pollable resource?

Answer 1

See the <inbound-channel-adapter>:

<int:inbound-channel-adapter ref="source1" method="method1" channel="channel1">
    <int:poller fixed-rate="5000"/>
</int:inbound-channel-adapter>

Where source1 is something like:

public class MyService {

   public List<File> method1() {
     ....
   }  

}

Your method will be invoked each that fixed-rate interval.