Ibm Wmq - Xms .Net - Read and delete message from Queue

Question

Greetings of the day.

Please help on the below requirement:

Requirement:

1. We want to delete message from MQ only after it is processed successfully.

2. Use event based message detection technique and avoid loop

So, to achieve above:

1. I have created message listener and consumer class below:

   { sessionIn = connectionIn.CreateSession(false, AcknowledgeMode.ClientAcknowledge);

   // Create message listener and assign it to consumer messageListener = new MessageListener(OnMessageCallback); consumerAsync.MessageListener = messageListener; Console.WriteLine("Message Listener set. Starting the connection now.");

   // Start the connection to receive messages. connectionWMQ.Start(); }

2. Reading the message from the call back event and push the message into other system:

   OnMessageCallback(Message) {

    if (xmsMessage is IBytesMessage)
    {
    IBytesMessage bytesMessage = (IBytesMessage)xmsMessage;
    byte[] arrayMessage = new byte[bytesMessage.BodyLength];
    bytesMessage.ReadBytes(arrayMessage);
    string message = System.Text.Encoding.Default.GetString(arrayMessage);
    }
    }
   

Once the message processed, external system will fire the below over ride method:

3. Response method override:

   protected override Task OnResponse(ReponseMessage message) {

    //Read the message and get the message id and correlation id.

   //Delete the message from the queue.

   //I am trying to do like this, but Its not working:

   messageConsumerDelete = sessionDelete.CreateConsumer(destinationDelete, query); if (messageConsumerDelete != null) { IMessage m = messageConsumerDelete.Receive(1000); LogWrite("Receive Message=" + m); m.Acknowledge(); } }

Please suggest a best solution for this requirement.

I am trying to find a solution for this since weeks, but no breakthrough. 

Thanks, Balaji