Break the Transformer flow Spring Integration

Question

I have spring integration flows. One for the file poller and other one is to process the file

flow # 01

poll the file in C:/testing directory

files comes goes to "process" queue

flow # 02 (from "process")

Transformer(new FindTheDepartItbelongs()) //basically file has to match to some depoartment
.transform(new FileParserTransformer()
.transformer(new CustomerTransformer()
.handle (o -> {})

The issue is if the FindTheDepartItBelongs cannot find the department then it has to stop the rest of the flow and send the message to some error queue.

If I return null from the transformer it does not work.

Is there any other way to achieve the same ?

Transformers can't return null; you need to show your complete flow configuration so we can help you with error handling configuration. — Gary Russell, Nov 28 '18 at 14:05
@GaryRussell I already have error handler but I am interested to know if I can stop the flow in between? — Makky, Nov 28 '18 at 14:11
A transformer cannot return null, but a `.handle()` method can and the flow just stops. It won't go to the error channel, though; you have to throw an exception for that. — Gary Russell, Nov 28 '18 at 14:23
@GaryRussell I got it mate . Thanks if you have sometime can you please help me with this question https://stackoverflow.com/questions/53521593/taskexecutor-is-not-working-spring-integration — Makky, Nov 28 '18 at 14:29

score 3 · Accepted Answer · edited Jun 02 '21 at 20:50

3

A transformer cannot return null, but a .handle() method can and the flow just stops. It won't go to the error channel, though; you have to throw an exception for that.

edited Jun 02 '21 at 20:50

TuGordoBello

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answered Nov 28 '18 at 14:32

Gary Russell

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Thanks, exactly what I wanted. – Makky Nov 28 '18 at 14:37

Break the Transformer flow Spring Integration

1 Answers1