Create Service Contracts
[ServiceContract(Namespace = "Silverlight", CallbackContract = typeof(IDuplexClient))]
public interface IDuplexService
{
[OperationContract]
void Order(string name, int quantity);
}
[ServiceContract]
public interface IDuplexClient
{
[OperationContract(IsOneWay = true)]
void Receive(Order order);
}
[ServiceContract]
public interface IPolicyRetriever
{
[OperationContract, WebGet(UriTemplate = "/clientaccesspolicy.xml")]
Stream GetSilverlightPolicy();
[OperationContract, WebGet(UriTemplate = "/crossdomain.xml")]
Stream GetFlashPolicy();
}
Implement Service Contracts:
public class OrderService : IDuplexService,IPolicyRetriever
{
public static Dictionary
Clients = new Dictionary();
IDuplexClient client;
string orderName;
int orderQuantity;
public void Order(string name, int quantity)
{
// Grab the client callback channel.
client = OperationContext.Current.GetCallbackChannel();
orderName = name;
orderQuantity = quantity;
Clients[name] = client;
// Pretend service is processing and will call client back in 5 seconds.
using (Timer timer = new Timer(new TimerCallback(CallClient), null, 5000, 5000))
{
Thread.Sleep(11000);
}
}
bool processed = false;
private void CallClient(object o)
{
Order order = new Order();
order.Payload = new List();
// Process order.
if (processed)
{
// Pretend service is fulfilling the order.
while (orderQuantity-- > 0)
{
order.Payload.Add(orderName + orderQuantity);
}
order.Status = OrderStatus.Completed;
}
else
{
// Pretend service is processing payment.
order.Status = OrderStatus.Processing;
processed = true;
}
// Call client back.
client.Receive(order);
}
Stream StringToStream(string result)
{
WebOperationContext.Current.OutgoingResponse.ContentType = "application/xml";
return new MemoryStream(Encoding.UTF8.GetBytes(result));
}
public Stream GetSilverlightPolicy()
{
string result = @"
";
return StringToStream(result);
}
public Stream GetFlashPolicy()
{
string result = @"
";
return StringToStream(result);
}
}
Running the service:
static void Main(string[] args)
{
//Creating a new ServiceHost instance with two base addresses: one for the http and second for the net.tcp
using (ServiceHost sh = new ServiceHost(typeof(OrderService), new Uri("http://localhost:72/Service")))
{
//Adding the endpoints to the ServiceHost
//sh.AddServiceEndpoint(typeof(IDuplexService), new NetTcpBinding(), "");
sh.AddServiceEndpoint(typeof(IDuplexService), new PollingDuplexHttpBinding(), "");
sh.AddServiceEndpoint(typeof(IPolicyRetriever), new WebHttpBinding(), "http://localhost:72/").Behaviors.Add(new WebHttpBehavior());
//Creating a new Service Behavior
ServiceMetadataBehavior smb = new ServiceMetadataBehavior();
smb.HttpGetEnabled = true;
sh.Description.Behaviors.Add(smb);
//Opening the ServiceHost for incoming connections
sh.Open();
System.Console.WriteLine("Waiting for connections...");
System.Console.ReadLine();
//Close opened ServiceHost object
sh.Close();
}
}
before you actually run the service you will have register the url of service to ACL.
on vista and win 2008
C:\Windows\system32>netsh http add urlacl url=http://+:72/Service/ user=shoaibpc-3
use httpcfg for winxp
