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| CorrId and Aggregate Request & Reply Nodes |
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| AlexeiSkate |
 Posted: Mon Jul 01, 2002 2:43 pm Post subject: CorrId and Aggregate Request & Reply Nodes |
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Centurion
Joined: 10 Apr 2002
Posts: 123
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I'm sending an input message through an AggregateRequest node, creating two different request messages from it and then I would like the AggregateReply node to aggregate the two replied messages and the original input message into one message.
For the AggregateRequest section, as soon as the request message is placed in a triggered request queue, an in-house built Adapter is immediately activated to read the request msg from the request queue and put a reply into a response queue.
The problem with my message flow is that the AggregateReply node always send the replies to the Unknown Queue.
I can see from the trace node that the replied message has its CorrId set to zeroes. Does my in-house built Adapter need to set the replied msg CorrId to be the same as the request message msgId before the replied msg is placed in the response queue ? Is the CorrId the value that the AggregateReply node uses to aggregate related messages together ?
This is the original message msgId and CorrId before it goes into the AggregateReply node:
(0x3000000)MsgId = X'c19821333edd4dd386e1c4e3fb2c120f0000000000000000'
(0x3000000)CorrelId = X'c19821333edd4dd386e1c4e3fb2c120f0000000000000000'
This is the replied message msgId and CorrId before it goes into the AggregateReply node:
(0x3000000)MsgId = X'414d51204d454c4c4f4e514d20202020d5c0203d12e00100'
(0x3000000)CorrelId = X'000000000000000000000000000000000000000000000000'
thanks,
Alex |
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| devans |
| Posted: Mon Jul 01, 2002 11:32 pm Post subject: |
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Apprentice
Joined: 18 Mar 2002
Posts: 43
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Alex,
You are correct. You must adhere to the request/reply rules for the underlying transport. In the MQ case, this means that you have to copy the MsgId of the request into the CorrelId of the reply before giving the message to the AggregateReply node. |
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| AlexeiSkate |
| Posted: Tue Jul 02, 2002 2:55 pm Post subject: |
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Centurion
Joined: 10 Apr 2002
Posts: 123
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Thanks.
I got the Adapter person to modify his code so that the Adapter can assign the CorrId of the reply msg to be the same as the msg id of the request msg, and my Aggregate reply and request nodes appear to be working as expected now. |
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