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//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------
namespace System.ServiceModel.Routing
{
using System;
using System.Diagnostics.CodeAnalysis;
using System.Collections.Generic;
using System.Runtime;
using System.ServiceModel.Description;
using System.ServiceModel.Channels;
using System.ComponentModel;
using System.Threading;
class SessionChannels
{
Guid activityID;
[Fx.Tag.SynchronizationObject]
Dictionary<RoutingEndpointTrait, IRoutingClient> sessions;
List<IRoutingClient> sessionList;
[SuppressMessage(FxCop.Category.Performance, FxCop.Rule.AvoidUncalledPrivateCode, Justification = "gets called in RoutingService.ctor()")]
public SessionChannels(Guid activityID)
{
this.activityID = activityID;
this.sessions = new Dictionary<RoutingEndpointTrait, IRoutingClient>();
this.sessionList = new List<IRoutingClient>();
}
void ChannelFaulted(object sender, EventArgs args)
{
FxTrace.Trace.SetAndTraceTransfer(this.activityID, true);
IRoutingClient client = (IRoutingClient)sender;
if (TD.RoutingServiceChannelFaultedIsEnabled())
{
TD.RoutingServiceChannelFaulted(client.Key.ToString());
}
this.AbortChannel(client.Key);
}
[SuppressMessage(FxCop.Category.Performance, FxCop.Rule.AvoidUncalledPrivateCode, Justification = "BeginClose is called by RoutingChannelExtension.AttachService")]
public IAsyncResult BeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
List<ICommunicationObject> localClients = null;
lock (this.sessions)
{
if (this.sessions.Count > 0)
{
localClients = this.sessionList.ConvertAll<ICommunicationObject>((client) => (ICommunicationObject)client);
this.sessionList.Clear();
this.sessions.Clear();
}
}
if (localClients != null && localClients.Count > 0)
{
localClients.ForEach((client) =>
{
if (TD.RoutingServiceClosingClientIsEnabled())
{
TD.RoutingServiceClosingClient(((IRoutingClient)client).Key.ToString());
}
});
return new CloseCollectionAsyncResult(timeout, callback, state, localClients);
}
else
{
return new CompletedAsyncResult(callback, state);
}
}
public void EndClose(IAsyncResult asyncResult)
{
if (asyncResult is CloseCollectionAsyncResult)
{
CloseCollectionAsyncResult.End(asyncResult);
}
else
{
CompletedAsyncResult.End(asyncResult);
}
}
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 AbortAll()
{
List<IRoutingClient> clients = new List<IRoutingClient>();
lock (this.sessions)
{
foreach (IRoutingClient client in this.sessions.Values)
{
clients.Add(client);
}
this.sessions.Clear();
this.sessionList.Clear();
}
foreach (IRoutingClient client in clients)
{
RoutingUtilities.Abort((ICommunicationObject)client, client.Key);
}
}
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 IRoutingClient ReleaseChannel()
{
IRoutingClient client = null;
lock (this.sessions)
{
int count = this.sessionList.Count;
if (count > 0)
{
client = this.sessionList[count - 1];
this.sessionList.RemoveAt(count - 1);
this.sessions.Remove(client.Key);
}
}
return client;
}
}
}
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