[#PETALSSEEIP-33] Scatter-Gather: It it not needed to send sub-exchanges once the incoming exchange is ended - Petals Link JIRA

Details

Type: Improvement Request
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 2.10.0
Fix Version/s: 2.11.0
Component/s: Scatter-Gather
Security Level: Public

Description:

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With pattern 'Scatter-Gather', if an error or a fault is returned by a service provider consumed, a response can be directly returned and interrupting the pattern process. In this case it is not needed to invoked service providers not already invoked. Service providers consumed must be invoked only if the current pattern process instance is not terminated.

Otherwise, the following error occurs because the incoming message was returned and the component does not own it:

java.lang.IllegalStateException: The component does not owns the MessageExchange
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeWrapper.checkComponentOwnsExchange(MessageExchangeWrapper.java:282)
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeWrapper.getRole(MessageExchangeWrapper.java:161)
	at org.ow2.petals.component.framework.message.ExchangeImpl.getRole(ExchangeImpl.java:479)
	at org.ow2.petals.component.framework.message.ExchangeImpl.isConsumerRole(ExchangeImpl.java:499)
	at org.ow2.petals.component.framework.listener.AbstractListener.preSend(AbstractListener.java:600)
	at org.ow2.petals.component.framework.listener.AbstractListener.send(AbstractListener.java:556)

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With pattern 'Scatter-Gather', if an error or a fault is returned by a service provider consumed, a response can be directly returned and interrupting the pattern process. In this case it is not needed to invoked service providers not already invoked. Service providers consumed must be invoked only if the current pattern process instance is not terminated. Otherwise, the following error occurs because the incoming message was returned and the component does not own it:

java.lang.IllegalStateException: The component does not owns the MessageExchange
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeWrapper.checkComponentOwnsExchange(MessageExchangeWrapper.java:282)
	at org.ow2.petals.jbi.messaging.exchange.MessageExchangeWrapper.getRole(MessageExchangeWrapper.java:161)
	at org.ow2.petals.component.framework.message.ExchangeImpl.getRole(ExchangeImpl.java:479)
	at org.ow2.petals.component.framework.message.ExchangeImpl.isConsumerRole(ExchangeImpl.java:499)
	at org.ow2.petals.component.framework.listener.AbstractListener.preSend(AbstractListener.java:600)
	at org.ow2.petals.component.framework.listener.AbstractListener.send(AbstractListener.java:556)

Environment:

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Petals SE EIP

Scatter-Gather: It it not needed to send sub-exchanges once the incoming exchange is ended

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