Msmq Binding is used to communicate to the Service using Microsoft Message Queuing. I have used this binding for transferring log messages. This way we can build a centralised logging system.
For this I followed the steps mentioned below
1. Installed Microsoft Message Queuing
2. Create a message Queue with Transaction Enabled
3. Create a Service
[ServiceContract]
public interface ILogService
{
[OperationContract(IsOneWay =true )]
void Log(string Message);
}
Note:if we use NetMsmqBinding we have to mark all operations with in the service contract as OneWay.
4.Define the implementation
public class MathService:ILogService
{
public void Log(string message)
{
File.AppendAllText(@"C:\logFolder\AppMessages.txt", message + Environment.NewLine);
}
}
5.Host the Service I have used Self Hosting.
//Address of the message Queue in the machine -
// use public with active directory installation
// in case of Active directory integration . other machines can also access
// the Queue
Uri uri = new Uri(@"net.msmq:\\mycomputer\private\testQueue");
//Create Msmq binding with impersonate
// you may need need to do some thing more if you desire security
NetMsmqBinding messageQueueBinding = new NetMsmqBinding(NetMsmqSecurityMode .None);
ServiceHost host = new ServiceHost(typeof(ILogService), uri);
host.AddServiceEndpoint(typeof(ILogService), messageQueueBinding,uri .AbsoluteUri );
//host the WCF Service
host.Open();
6.Design a Logging Client Application I have used Simple Console Application to demonstrate the same.
class Program
{
static void Main(string[] args)
{
Uri uri = new Uri ("net.msmq:\\mycomputer\private\testQueue");
EndpointAddress address = new EndpointAddress (uri.AbsoluteUri );
NetMsmqBinding binding =new NetMsmqBinding (NetMsmqSecurityMode.None );
ChannelFactory <ILogService> SerChannel = new ChannelFactory<ILogService> (binding ,address );
ILogService client = SerChannel.CreateChannel ();
client.Log (" This is a log message");
Console.ReadLine ();
}
}
