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From Ashok P <ashvit...@gmail.com>
Subject Re: AMQCPP - CMSException is not getting caught by base class std::exception.
Date Tue, 30 Dec 2008 06:40:15 GMT

Thanks Tim.

I created Jira issue for this -
https://issues.apache.org/activemq/browse/AMQCPP-218.

//Ashok


Timothy Bish wrote:
> 
> 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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