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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System;
using System.Runtime;
using System.ServiceModel;
using System.ServiceModel.Security;
class PeerMessageDispatcher<ChannelInterfaceType, TChannel> : CommunicationObject
where ChannelInterfaceType : class, IChannel
where TChannel : InputQueueChannel<Message>
{
public class PeerMessageQueueAdapter
{
SingletonChannelAcceptor<ChannelInterfaceType, TChannel, Message> singletonChannelAcceptor;
InputQueueChannel<Message> inputQueueChannel;
public PeerMessageQueueAdapter(SingletonChannelAcceptor<ChannelInterfaceType, TChannel, Message> singletonChannelAcceptor)
{
this.singletonChannelAcceptor = singletonChannelAcceptor;
}
public PeerMessageQueueAdapter(InputQueueChannel<Message> inputQueueChannel)
{
this.inputQueueChannel = inputQueueChannel;
}
public void EnqueueAndDispatch(Message message, Action callback)
{
if (singletonChannelAcceptor != null)
{
singletonChannelAcceptor.Enqueue(message, callback);
}
else if (inputQueueChannel != null)
{
inputQueueChannel.EnqueueAndDispatch(message, callback);
}
}
}
Uri via;
EndpointAddress to;
SecurityProtocol securityProtocol;
PeerNodeImplementation peerNode;
PeerMessageQueueAdapter queueHandler;
ChannelManagerBase channelManager;
PeerQuotaHelper quotaHelper = new PeerQuotaHelper(Int32.MaxValue);
bool registered;
public PeerMessageDispatcher(PeerMessageQueueAdapter queueHandler, PeerNodeImplementation peerNode, ChannelManagerBase channelManager, EndpointAddress to, Uri via)
{
PeerNodeImplementation.ValidateVia(via);
this.queueHandler = queueHandler;
this.peerNode = peerNode;
this.to = to;
this.via = via;
this.channelManager = channelManager;
EndpointAddress filterTo = null;
this.securityProtocol = ((IPeerFactory)channelManager).SecurityManager.CreateSecurityProtocol<ChannelInterfaceType>(to, ServiceDefaults.SendTimeout);
if (typeof(IDuplexChannel).IsAssignableFrom(typeof(ChannelInterfaceType)))
filterTo = to;
//Register this handler
PeerMessageFilter[] filters = new PeerMessageFilter[] { new PeerMessageFilter(via, filterTo) };
peerNode.RegisterMessageFilter(this, this.via, filters, (ITransportFactorySettings)this.channelManager,
new PeerNodeImplementation.MessageAvailableCallback(OnMessageAvailable), securityProtocol);
registered = true;
}
protected override TimeSpan DefaultCloseTimeout
{
get { return channelManager.InternalCloseTimeout; }
}
protected override TimeSpan DefaultOpenTimeout
{
get { return channelManager.InternalOpenTimeout; }
}
public SecurityProtocol SecurityProtocol
{
get { return securityProtocol; }
}
protected override void OnAbort()
{
}
protected override IAsyncResult OnBeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
this.OnClose(timeout);
return new CompletedAsyncResult(callback, state);
}
protected override void OnEndClose(IAsyncResult result)
{
CompletedAsyncResult.End(result);
}
protected override void OnClose(TimeSpan timeout)
{
Unregister(true);
}
internal void Unregister()
{
Unregister(false);
}
internal void Unregister(bool release)
{
PeerNodeImplementation node = this.peerNode;
if (node != null)
{
if (registered)
{
node.UnregisterMessageFilter(this, via);
registered = false;
}
if (release)
node.Release();
}
}
protected override void OnOpen(TimeSpan timeout)
{
}
protected override IAsyncResult OnBeginOpen(TimeSpan timeout, AsyncCallback callback, object state)
{
return new CompletedAsyncResult(callback, state);
}
protected override void OnEndOpen(IAsyncResult result)
{
CompletedAsyncResult.End(result);
}
public void OnMessageAvailable(Message message)
{
quotaHelper.ReadyToEnqueueItem();
queueHandler.EnqueueAndDispatch(message, quotaHelper.ItemDequeued);
}
}
class PeerMessageFilter
{
Uri via;
Uri actingAs;
public PeerMessageFilter(Uri via) : this(via, null) { }
public PeerMessageFilter(Uri via, EndpointAddress to)
{
Fx.Assert(via != null, "PeerMessageFilter via can not be set to null");
this.via = via;
if (to != null)
this.actingAs = to.Uri;
}
public bool Match(Uri peerVia, Uri toCond)
{
bool result = false;
if (peerVia == null)
{
result = false;
}
else if (Uri.Compare(this.via, peerVia,
(UriComponents.Scheme | UriComponents.UserInfo | UriComponents.Host | UriComponents.Port | UriComponents.Path),
UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase) != 0)
{
result = false;
}
else if (this.actingAs != null)
{
result = Uri.Compare(this.actingAs, toCond,
(UriComponents.Scheme | UriComponents.UserInfo | UriComponents.Host | UriComponents.Port | UriComponents.Path),
UriFormat.SafeUnescaped, StringComparison.OrdinalIgnoreCase) == 0;
}
else
result = true;
return result;
}
}
}
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