public static IRoutingClient Create(RoutingEndpointTrait endpointTrait, RoutingService service, bool impersonating)
{
Type contractType = endpointTrait.RouterContract;
IRoutingClient client;
if (contractType == typeof(ISimplexDatagramRouter))
{
client = new SimplexDatagramClient(endpointTrait, service.RoutingConfig, impersonating);
}
else if (contractType == typeof(IRequestReplyRouter))
{
client = new RequestReplyClient(endpointTrait, service.RoutingConfig, impersonating);
}
else if (contractType == typeof(ISimplexSessionRouter))
{
client = new SimplexSessionClient(endpointTrait, service.RoutingConfig, impersonating);
}
else //if (contractType == typeof(IDuplexSessionRouter))
{
Fx.Assert(contractType == typeof(IDuplexSessionRouter), "Only one contract type remaining.");
client = new DuplexSessionClient(service, endpointTrait, impersonating);
}
return(client);
}
internal IRoutingClient GetOrCreateClient <TContract>(RoutingEndpointTrait endpointTrait, bool impersonating)
{
if (impersonating && !this.ChannelExtension.HasSession)
{
if (this.perMessageChannels == null)
{
this.perMessageChannels = new SessionChannels(this.ChannelExtension.ActivityID);
}
return(this.perMessageChannels.GetOrCreateClient <TContract>(endpointTrait, this, impersonating));
}
else
{
return(this.ChannelExtension.SessionChannels.GetOrCreateClient <TContract>(endpointTrait, this, impersonating));
}
}
internal IRoutingClient GetOrCreateClient <TContract>(RoutingEndpointTrait key, RoutingService service, bool impersonating)
{
IRoutingClient value;
lock (this.sessions)
{
if (!this.sessions.TryGetValue(key, out value))
{
//Create the client here
value = ClientFactory.Create(key, service, impersonating);
value.Faulted += ChannelFaulted;
this.sessions[key] = value;
sessionList.Add(value);
}
}
return(value);
}
public void AbortChannel(RoutingEndpointTrait key)
{
IRoutingClient client;
lock (this.sessions)
{
if (this.sessions.TryGetValue(key, out client))
{
this.sessions.Remove(key);
this.sessionList.Remove(client);
}
}
if (client != null)
{
RoutingUtilities.Abort((ICommunicationObject)client, client.Key);
}
}
public override bool Equals(object obj)
{
RoutingEndpointTrait other = obj as RoutingEndpointTrait;
if (other == null)
{
return(false);
}
if (!object.ReferenceEquals(this.Endpoint, other.Endpoint))
{
return(false);
}
if (this.RouterContract != other.RouterContract)
{
return(false);
}
if (!object.ReferenceEquals(this.CallbackInstance, other.CallbackInstance))
{
return(false);
}
return(true);
}
void Initialize(RoutingEndpointTrait endpointTrait, RoutingConfiguration routingConfig, bool impersonating)
{
this.thisLock = new object();
this.Key = endpointTrait;
if (TD.RoutingServiceCreatingClientForEndpointIsEnabled())
{
TD.RoutingServiceCreatingClientForEndpoint(this.Key.ToString());
}
ServiceEndpoint clientEndpoint = endpointTrait.Endpoint;
ServiceEndpoint endpoint = this.Endpoint;
KeyedByTypeCollection <IEndpointBehavior> behaviors = endpoint.Behaviors;
endpoint.ListenUri = clientEndpoint.ListenUri;
endpoint.ListenUriMode = clientEndpoint.ListenUriMode;
endpoint.Name = clientEndpoint.Name;
foreach (IEndpointBehavior behavior in clientEndpoint.Behaviors)
{
// Remove if present, ok to call if not there (will simply return false)
behaviors.Remove(behavior.GetType());
behaviors.Add(behavior);
}
// If the configuration doesn't explicitly add MustUnderstandBehavior (to override us)
// add it here, with mustunderstand = false.
if (behaviors.Find <MustUnderstandBehavior>() == null)
{
behaviors.Add(new MustUnderstandBehavior(false));
}
// If the configuration doesn't explicitly turn off marshaling we add it here.
if (routingConfig.SoapProcessingEnabled && behaviors.Find <SoapProcessingBehavior>() == null)
{
behaviors.Add(new SoapProcessingBehavior());
}
ConfigureTransactionFlow(endpoint);
ConfigureImpersonation(endpoint, impersonating);
}
protected RoutingClientBase(RoutingEndpointTrait endpointTrait, RoutingConfiguration routingConfig, object callbackInstance, bool impersonating)
: base(new InstanceContext(callbackInstance), endpointTrait.Endpoint.Binding, endpointTrait.Endpoint.Address)
{
Initialize(endpointTrait, routingConfig, impersonating);
}
protected RoutingClientBase(RoutingEndpointTrait endpointTrait, RoutingConfiguration routingConfig, bool impersonating)
: base(endpointTrait.Endpoint.Binding, endpointTrait.Endpoint.Address)
{
Initialize(endpointTrait, routingConfig, impersonating);
}
public RequestReplyClient(RoutingEndpointTrait endpointTrait, RoutingConfiguration routingConfig, bool impersonating)
: base(endpointTrait, routingConfig, impersonating)
{
}
public DuplexSessionClient(RoutingService service, RoutingEndpointTrait endpointTrait, bool impersonating)
: base(endpointTrait, service.RoutingConfig, new DuplexCallbackProxy(service.ChannelExtension.ActivityID, endpointTrait.CallbackInstance), impersonating)
{
}
public SimplexSessionClient(RoutingEndpointTrait endointTrait, RoutingConfiguration routingConfig, bool impersonating)
: base(endointTrait, routingConfig, impersonating)
{
}
bool SendToCurrentClient()
{
MessageRpc messageRpc = this.service.SessionMessages[this.sessionMessageIndex];
SendOperation sendOperation = messageRpc.Operations[this.destinationIndex];
if (sendOperation.Sent)
{
this.MoveToNextClientOperation(messageRpc.Operations.Count);
return(true);
}
else if (!this.channelExtension.ReceiveContextEnabled &&
this.channelExtension.TransactedReceiveEnabled &&
sendOperation.HasAlternate)
{
// We can't do error handling for oneway Transactional unless there's RC.
throw FxTrace.Exception.AsError(new ConfigurationErrorsException(SR.ErrorHandlingNotSupportedTxNoRC(messageRpc.OperationContext.Channel.LocalAddress)));
}
RoutingEndpointTrait endpointTrait = sendOperation.CurrentEndpoint;
this.client = this.service.GetOrCreateClient <TContract>(endpointTrait, messageRpc.Impersonating);
try
{
// We always work on cloned message when there are backup endpoints to handle exception cases
Message message;
if (messageRpc.Operations.Count == 1 && sendOperation.AlternateEndpointCount == 0)
{
message = messageRpc.Message;
}
else
{
message = messageRpc.CreateBuffer().CreateMessage();
}
sendOperation.PrepareMessage(message);
IAsyncResult result;
if (TD.RoutingServiceTransmittingMessageIsEnabled())
{
TD.RoutingServiceTransmittingMessage(messageRpc.EventTraceActivity, messageRpc.UniqueID, this.destinationIndex.ToString(TD.Culture), this.client.Key.ToString());
}
Transaction transaction = this.service.GetTransactionForSending(messageRpc);
using (this.PrepareTransactionalCall(transaction))
{
IDisposable impersonationContext = null;
try
{
//Perform the assignment in a finally block so it won't be interrupted asynchronously
try { }
finally
{
impersonationContext = messageRpc.PrepareCall();
}
result = this.client.BeginOperation(message, transaction, this.PrepareAsyncCompletion(clientOperationCallback), this);
}
finally
{
if (impersonationContext != null)
{
impersonationContext.Dispose();
}
}
}
if (this.CheckSyncContinue(result))
{
this.ClientOperationComplete(result);
return(true);
}
else
{
return(false);
}
}
catch (Exception exception)
{
if (Fx.IsFatal(exception))
{
throw;
}
//See if we can handle this Exception...
if (this.HandleClientOperationFailure(exception))
{
return(true);
}
throw;
}
}
