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From Timothy Bish <tabish...@gmail.com>
Subject Re: AMQCPP - CMSException is not getting caught by base class std::exception.
Date Mon, 29 Dec 2008 14:04:23 GMT
Please feel free to create a Jira issue to document the potential bug
you have uncovered.  This will ensure that it doesn't get lost and that
someone will eventually take a look at it.

Regards
Tim.

On Fri, 2008-12-26 at 23:00 -0800, Ashok P wrote:
> I am upgrading CPP libary 2.1.1 to AMQCPP 2.2.2, and using
> fuse-message-broker-5.2.0.1.
> 
> My application is in C++ so it uses std::exception handler as generic. But
> with AMQCPP 2.2.2 and 2.2.1, these handlers are not getting called though
> cms:CMSException handlers get called.
> 
> I tested it using test application in AMQCPP library
> <vs2005-activemq-example>. Here is consumer's run method from example. Put
> your broker down, so you will get exception at CreateConnection().
> 
> Ex:
>  virtual void run() {
> 
>         try {
> 
>             // Create a ConnectionFactory
>             auto_ptr<ConnectionFactory> connectionFactory(
>                 ConnectionFactory::createCMSConnectionFactory( brokerURI )
> );
> 
>             // Create a Connection
>             connection = connectionFactory->createConnection();
>             connection->start();
>             connection->setExceptionListener(this);
> 
>             // Create a Session
>             if( this->sessionTransacted == true ) {
>                 session = connection->createSession(
> Session::SESSION_TRANSACTED );
>             } else {
>                 session = connection->createSession(
> Session::AUTO_ACKNOWLEDGE );
>             }
> 
>             // Create the destination (Topic or Queue)
>             if( useTopic ) {
>                 destination = session->createTopic( "TEST.FOO" );
>             } else {
>                 destination = session->createQueue( "TEST.FOO" );
>             }
> 
>             // Create a MessageConsumer from the Session to the Topic or
> Queue
>             consumer = session->createConsumer( destination );
> 
>             consumer->setMessageListener( this );
> 
>             std::cout.flush();
>             std::cerr.flush();
> 
>             // Indicate we are ready for messages.
>             latch.countDown();
> 
>             // Wait while asynchronous messages come in.
>             doneLatch.await( waitMillis );
> 
> 		} catch (std::exception& e) {
>                       //e.printStackTrace();
> 			printf(e.what());
> 			printf( "Std Exception at Consumer:");
> 		}catch(cms::CMSException& e) {
> 
>             // Indicate we are ready for messages.
>             latch.countDown();
> 	  printf("cms Exception occurred. Consumer.\n");
> 
>             e.printStackTrace();
> 		} 
>     }
> 
> I am getting warning for this as expected in build:
> warning C4286: 'cms::CMSException &' : is caught by base class
> ('std::exception &') on line 127
> 
> But the std::exception handler is not getting called though CMSException
> handler excuted. As a base class  I believe that std:exception should get
> called. This is working fine using 2.1.1 library, but not 2.2.1/2.2.2. 
> 
> I might be wrong, please correct me and help me sort out this problem.
> 
> 
-- 
Tim Bish
http://fusesource.com
http://timbish.blogspot.com/




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