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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.Diagnostics;
using System.Runtime;
using System.ServiceModel;
using System.ServiceModel.Diagnostics;
using System.ServiceModel.Security;
class PeerDuplexChannel : DuplexChannel
{
EndpointAddress to;
Uri via;
PeerNode peerNode;
bool released = false;
SecurityProtocol securityProtocol;
ChannelManagerBase channelManager;
PeerMessageDispatcher<IDuplexChannel, PeerDuplexChannel> messageDispatcher;
public PeerDuplexChannel(PeerNodeImplementation peerNode, PeerNodeImplementation.Registration registration, ChannelManagerBase channelManager,
EndpointAddress localAddress, Uri via)
: base(channelManager, localAddress)
{
PeerNodeImplementation.ValidateVia(via);
if (registration != null)
{
peerNode = PeerNodeImplementation.Get(via, registration);
}
this.peerNode = new PeerNode(peerNode);
this.to = localAddress;
this.via = via;
this.channelManager = channelManager;
}
public override EndpointAddress RemoteAddress
{
get { return this.to; }
}
public override Uri Via
{
get { return this.via; }
}
public PeerNodeImplementation InnerNode
{
get { return this.peerNode.InnerNode; }
}
internal PeerMessageDispatcher<IDuplexChannel, PeerDuplexChannel> Dispatcher
{
get
{
return this.messageDispatcher;
}
set
{
Fx.Assert(this.State < CommunicationState.Opened, "Can not change the dispatcher on DuplexChannel after Open.");
this.messageDispatcher = value;
}
}
// add headers to an outgoing message
protected override void AddHeadersTo(Message message)
{
base.AddHeadersTo(message);
if (this.to != null)
{
this.to.ApplyTo(message);
}
}
public override T GetProperty<T>()
{
if (typeof(T) == typeof(PeerNode))
{
return (T)(object)this.peerNode;
}
else if (typeof(T) == typeof(PeerNodeImplementation))
{
return (T)(object)this.peerNode.InnerNode;
}
else if (typeof(T) == typeof(IOnlineStatus))
{
return (T)(object)this.peerNode;
}
else if (typeof(T) == typeof(FaultConverter))
{
return (T)(object)FaultConverter.GetDefaultFaultConverter(MessageVersion.Soap12WSAddressing10);
}
return base.GetProperty<T>();
}
protected override void OnAbort()
{
base.OnAbort();
if (this.State < CommunicationState.Closed)
{
try
{
this.peerNode.InnerNode.Abort();
}
catch (Exception e)
{
if (Fx.IsFatal(e)) throw;
DiagnosticUtility.TraceHandledException(e, TraceEventType.Information);
}
}
}
protected override IAsyncResult OnBeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
return this.peerNode.InnerNode.BeginClose(timeout, callback, state);
}
protected override IAsyncResult OnBeginOpen(TimeSpan timeout, AsyncCallback callback, object state)
{
IAsyncResult result = this.peerNode.InnerNode.BeginOpen(timeout, callback, state, true);
return result;
}
protected override void OnClose(TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
this.peerNode.InnerNode.Close(timeoutHelper.RemainingTime());
base.OnClose(timeoutHelper.RemainingTime());
}
protected override void OnClosing()
{
base.OnClosing();
ReleaseNode();
}
void ReleaseNode()
{
if (!this.released)
{
bool release = false;
lock (ThisLock)
{
if (!this.released)
{
release = this.released = true;
}
}
if (release && (this.peerNode != null))
{
if (this.messageDispatcher != null)
this.messageDispatcher.Unregister(false);
this.peerNode.InnerNode.Release();
}
}
}
protected override void OnEndClose(IAsyncResult result)
{
PeerNodeImplementation.EndClose(result);
}
protected override void OnEndOpen(IAsyncResult result)
{
PeerNodeImplementation.EndOpen(result);
}
protected override void OnEnqueueItem(Message message)
{
// set the message's via to the uri on which it was received
message.Properties.Via = via;
if (DiagnosticUtility.ShouldTraceInformation)
{
TraceUtility.TraceEvent(TraceEventType.Information, TraceCode.PeerChannelMessageReceived,
SR.GetString(SR.TraceCodePeerChannelMessageReceived), this, message);
}
}
protected override void OnOpen(TimeSpan timeout)
{
this.peerNode.OnOpen();
this.peerNode.InnerNode.Open(timeout, true);
}
protected override void OnFaulted()
{
base.OnFaulted();
ReleaseNode();
}
protected override void OnSend(Message message, TimeSpan timeout)
{
EndSend(BeginSend(message, timeout, null, null));
}
protected override IAsyncResult OnBeginSend(Message message, TimeSpan timeout, AsyncCallback callback, object state)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
Fx.Assert(message.Headers.Action != message.Version.Addressing.DefaultFaultAction, "fault action in duplex.send");
if (this.securityProtocol == null)
{
lock (ThisLock)
{
if (this.securityProtocol == null)
{
this.securityProtocol = ((IPeerFactory)channelManager).SecurityManager.CreateSecurityProtocol<IDuplexChannel>(this.to, timeoutHelper.RemainingTime());
}
}
}
return this.peerNode.InnerNode.BeginSend(this, message, this.via, (ITransportFactorySettings)Manager,
timeoutHelper.RemainingTime(), callback, state, this.securityProtocol);
}
protected override void OnEndSend(IAsyncResult result)
{
PeerNodeImplementation.EndSend(result);
}
}
}
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