Question

I have a WCF host that listen to a topic and process incoming messages. the code look this:

 using (ServiceHost host = new ServiceHost(MessagingServiceType))
 {
               host.Open();
}

and the MessagingServiceType looks like that:

[ServiceBehavior(AddressFilterMode = AddressFilterMode.Any)]
    public class MessagingServiceType : IMessagingService
    {
        /// <summary>
        /// service instance
        /// </summary>
        private readonly MessagingService service;

        /// <summary>
        /// Initializes a new instance of the <see cref="MessagingServiceType"/> class.
        /// </summary>
        public MessagingServiceType()
        {
            // creating new messaging service
            service = new Singleton<MessagingService>();
        }

        /// <summary>
        /// Sends the message.
        /// </summary>
        /// <param name="messageContent">Content of the message.</param>
        public void SendMessage(string messageContent)
        {
            Message msg = Message.CreateMessage(MessageVersion.Default, string.Empty, messageContent);

            service.MessageReceived(msg);
        }
    }

The issue is that when i’m running it on a seperate test application, everything works fine and all the service receive all messages. However, when i take the exact same code and put it into my REAL application, no messages are being received.

my question is very simple: how can i “debug” this service to see what’s wrong with it and why messages are not being processed? is there anyway to compare between the two?

Thanks

Answer 1

Sure your service won’t receive anything…. just look at your code:

 using (ServiceHost host = new ServiceHost(MessagingServiceType))
 {
               host.Open();
 }

What exactly happens when you reach the “}” ?? The object in the “using” clause – your ServiceHost – will be freed / disposed of! ==> before you know it, your service is gone again…..

You need to do something like:

ServiceHost host = new ServiceHost(MessagingServiceType);
host.Open();

Console.ReadLine();  // wait for a ENTER press
host.Close();

No big debugging needed…….. 🙂