CODEWITHSUNDEEP
c#wcf
Arbejdsglæde
Arbejdsglæde

Reputation: 14088

WCF service availability

I have created WCF server and client applications. On the server side I need to know when the application is running.

I have created a WCF method and try to call it like this:

var myEndpoint = new EndpointAddress(url); //I generate HTTP url to endpoint here
var myBinding = new WSHttpBinding { Security = { Mode = SecurityMode.None } };

var myChannelFactory = new ChannelFactory<IMycontract>(myBinding, myEndpoint);

ISqlExpressSyncContract client = null;

try
{
    client = myChannelFactory.CreateChannel();
    client.IsAvailable();
    ((ICommunicationObject)client).Close();
    return true;
}
catch (Exception)
{
    if (client != null)
    {
        ((ICommunicationObject)client).Abort();
    }

    return false;
}

The code works but the timeout is too long when it isn't available. I tried using UDP discovery like provide here http://msdn.microsoft.com/en-us/magazine/ee335779.aspx. But it has the same problem when the client is not available.

What the best way to implement logic to fast ping each client and check their availability status?

Upvotes: 1

Views: 400

Answers (2)

Dave_B
Dave_B

Reputation: 29

I'm using the ServiceController class in the 'System.ServiceProcess' namespace and it's working beautifully.

try
{
    ServiceController sc = new ServiceController("Service Name", "Computer IP Address");
    Console.WriteLine("The service status is currently set to {0}",
        sc.Status.ToString());

    if ((sc.Status.Equals(ServiceControllerStatus.Stopped)) ||
        (sc.Status.Equals(ServiceControllerStatus.StopPending)))
    {
        Console.WriteLine("Service is Stopped, Ending the application...");
        Console.Read();
        EndApplication();
    }
    else
    {
        Console.WriteLine("Service is Started...");
    }
}
catch (Exception)
{
    Console.WriteLine("Error Occurred trying to access the Server service...");
    Console.Read();
    EndApplication();
}

Upvotes: 0

Cristian Lupascu
Cristian Lupascu

Reputation: 40566

Try lowering the timeout value like so:

myBinding.OpenTimeout = TimeSpan.FromSeconds(5);

This timeout value is for opening the communication channel. If needed, you can also tweak SendTimeout, ReceiveTimeout and CloseTimeout, all of them also on the binding object.

Upvotes: 3

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