Break the Transformer flow Spring Integration












3















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 ?










share|improve this question

























  • 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 stackoverflow.com/questions/53521593/…

    – Makky
    Nov 28 '18 at 14:29











  • You can leave that as an answer if you want I'll accept

    – Makky
    Nov 28 '18 at 14:29
















3















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 ?










share|improve this question

























  • 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 stackoverflow.com/questions/53521593/…

    – Makky
    Nov 28 '18 at 14:29











  • You can leave that as an answer if you want I'll accept

    – Makky
    Nov 28 '18 at 14:29














3












3








3


1






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 ?










share|improve this 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 ?







java spring-integration spring-integration-dsl






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 28 '18 at 15:07









Naman

44.8k11102204




44.8k11102204










asked Nov 28 '18 at 11:38









MakkyMakky

7,942145076




7,942145076













  • 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 stackoverflow.com/questions/53521593/…

    – Makky
    Nov 28 '18 at 14:29











  • You can leave that as an answer if you want I'll accept

    – Makky
    Nov 28 '18 at 14:29



















  • 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 stackoverflow.com/questions/53521593/…

    – Makky
    Nov 28 '18 at 14:29











  • You can leave that as an answer if you want I'll accept

    – Makky
    Nov 28 '18 at 14:29

















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





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





@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







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 stackoverflow.com/questions/53521593/…

– Makky
Nov 28 '18 at 14:29





@GaryRussell I got it mate . Thanks if you have sometime can you please help me with this question stackoverflow.com/questions/53521593/…

– Makky
Nov 28 '18 at 14:29













You can leave that as an answer if you want I'll accept

– Makky
Nov 28 '18 at 14:29





You can leave that as an answer if you want I'll accept

– Makky
Nov 28 '18 at 14:29












1 Answer
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oldest

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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.






share|improve this answer
























  • Thanks, exactly what I wanted.

    – Makky
    Nov 28 '18 at 14:37











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1 Answer
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oldest

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1 Answer
1






active

oldest

votes









active

oldest

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active

oldest

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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.






share|improve this answer
























  • Thanks, exactly what I wanted.

    – Makky
    Nov 28 '18 at 14:37
















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.






share|improve this answer
























  • Thanks, exactly what I wanted.

    – Makky
    Nov 28 '18 at 14:37














3












3








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.






share|improve this answer













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.







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 28 '18 at 14:32









Gary RussellGary Russell

84.1k74976




84.1k74976













  • Thanks, exactly what I wanted.

    – Makky
    Nov 28 '18 at 14:37



















  • Thanks, exactly what I wanted.

    – Makky
    Nov 28 '18 at 14:37

















Thanks, exactly what I wanted.

– Makky
Nov 28 '18 at 14:37





Thanks, exactly what I wanted.

– Makky
Nov 28 '18 at 14:37




















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