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From "Nathan Mittler (JIRA)" <>
Subject [jira] Reopened: (AMQCPP-64) Inconsistency in topic names when creating topics
Date Thu, 01 Feb 2007 11:26:03 GMT


Nathan Mittler reopened AMQCPP-64:

I'm reopening this issue - please try your example with the latest trunk.  If you find it
has the same problem, I'll investigate.


> Inconsistency in topic names when creating topics
> -------------------------------------------------
>                 Key: AMQCPP-64
>                 URL:
>             Project: ActiveMQ C++ Client
>          Issue Type: Bug
>          Components: CMS Impl, Stomp
>    Affects Versions: 1.0
>         Environment: win / lin 
>            Reporter: Lalit Nagpal
>         Assigned To: Nathan Mittler
>             Fix For: 2.0
>         Attachments: DestinationProblem.JPG, DestProbs.cpp, DestProbs.cpp, StompExceptionScreenshot.jpg
> Hi 
> I am using the activemq-cpp cms api 1.0 release. The problem I am facing is like this-

> My producer sends a message to the consumer and a message should be sent from the receiving
end as a reply after this - consider a situation where a loginRequest message has been sent
and now a loginReply message should be sent from the receiving end. 
> Attached is a sample main that can reproduce the problem I am facing - I have modified
the sample helloproducer helloconsumer code available at 
> to reproduce my problem so that its easier for you to see. Please see attached cpp file
= DestProbs.cpp.
> If you execute this piece of code you will see the output as in the attached image file
(see attachments = DestinationProblem.JPG)
> This is what the code does 
> producer lets call it xxx sends a "Hello world! from thread xxxx" to the consumer 
> consumer lets call it yyy receives the message and displays it 
> this is the normal behavior as given in the example on

> Following extra needs to be done now 
> from yyy a reply should go back to xxx ... for this i registered a producer at yyy by
creating a topic using the message->getCMSReplyTo() and then replying back to that destination.

> The mismatch can be easily see by doing a bstat .... when I created the consumer yyy
initially it created a topic by name say ABCDEFGH (which is a random id) and later on when
I used the message->getCMSReplyTo() to create a topic the topic was registered with the
name /topic/ABCDEFGH ..... the additional /topic/ that has got added is doing a mess up here
and the replies from yyy to xxx are not reaching xxx (getting enqueued and not dequeued) ...

> the /topic/ gets added due to the following statement in HelloWorldProducer - run method

> message->setCMSReplyTo(replyTopic->toProviderString()); 
> here the toProviderString method adds it actually ... if you replace this method with
just the toString() method ... you will get a stomp exception saying that destinations should
start with either /topic/ or /queue/ 
> Can somebody make this code work please. 
> For every message sent by the producer to consumer "Hello world! from thread xxxx" there
should be a reply coming back as "Thank you for Hello World !!!" 
> Please help me urgently here. 
> Thank you in advance 
> Lalit Nagpal 
> CSA, SunGard 

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