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//------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//------------------------------------------------------------
namespace System.ServiceModel.Channels
{
using System.Runtime;
using System.ServiceModel;
public abstract class ChannelFactoryBase : ChannelManagerBase, IChannelFactory
{
TimeSpan closeTimeout = ServiceDefaults.CloseTimeout;
TimeSpan openTimeout = ServiceDefaults.OpenTimeout;
TimeSpan receiveTimeout = ServiceDefaults.ReceiveTimeout;
TimeSpan sendTimeout = ServiceDefaults.SendTimeout;
protected ChannelFactoryBase()
{
}
protected ChannelFactoryBase(IDefaultCommunicationTimeouts timeouts)
{
this.InitializeTimeouts(timeouts);
}
protected override TimeSpan DefaultCloseTimeout
{
get { return this.closeTimeout; }
}
protected override TimeSpan DefaultOpenTimeout
{
get { return this.openTimeout; }
}
protected override TimeSpan DefaultReceiveTimeout
{
get { return this.receiveTimeout; }
}
protected override TimeSpan DefaultSendTimeout
{
get { return this.sendTimeout; }
}
public virtual T GetProperty<T>()
where T : class
{
if (typeof(T) == typeof(IChannelFactory))
{
return (T)(object)this;
}
return default(T);
}
protected override void OnAbort()
{
}
protected override IAsyncResult OnBeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
return new CompletedAsyncResult(callback, state);
}
protected override void OnClose(TimeSpan timeout)
{
}
protected override void OnEndClose(IAsyncResult result)
{
CompletedAsyncResult.End(result);
}
void InitializeTimeouts(IDefaultCommunicationTimeouts timeouts)
{
if (timeouts != null)
{
this.closeTimeout = timeouts.CloseTimeout;
this.openTimeout = timeouts.OpenTimeout;
this.receiveTimeout = timeouts.ReceiveTimeout;
this.sendTimeout = timeouts.SendTimeout;
}
}
}
public abstract class ChannelFactoryBase<TChannel> : ChannelFactoryBase, IChannelFactory<TChannel>
{
CommunicationObjectManager<IChannel> channels;
protected ChannelFactoryBase()
: this(null)
{
}
protected ChannelFactoryBase(IDefaultCommunicationTimeouts timeouts)
: base(timeouts)
{
this.channels = new CommunicationObjectManager<IChannel>(this.ThisLock);
}
public TChannel CreateChannel(EndpointAddress address)
{
if (address == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("address");
return this.InternalCreateChannel(address, address.Uri);
}
public TChannel CreateChannel(EndpointAddress address, Uri via)
{
if (address == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("address");
if (via == null)
throw DiagnosticUtility.ExceptionUtility.ThrowHelperArgumentNull("via");
return this.InternalCreateChannel(address, via);
}
TChannel InternalCreateChannel(EndpointAddress address, Uri via)
{
this.ValidateCreateChannel();
TChannel channel = this.OnCreateChannel(address, via);
bool success = false;
try
{
this.channels.Add((IChannel)(object)channel);
success = true;
}
finally
{
if (!success)
((IChannel)(object)channel).Abort();
}
return channel;
}
protected abstract TChannel OnCreateChannel(EndpointAddress address, Uri via);
protected void ValidateCreateChannel()
{
ThrowIfDisposed();
if (this.State != CommunicationState.Opened)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new InvalidOperationException(SR.GetString(SR.ChannelFactoryCannotBeUsedToCreateChannels, this.GetType().ToString())));
}
}
protected override void OnAbort()
{
IChannel[] currentChannels = this.channels.ToArray();
foreach (IChannel channel in currentChannels)
channel.Abort();
this.channels.Abort();
}
protected override void OnClose(TimeSpan timeout)
{
IChannel[] currentChannels = this.channels.ToArray();
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
foreach (IChannel channel in currentChannels)
channel.Close(timeoutHelper.RemainingTime());
this.channels.Close(timeoutHelper.RemainingTime());
}
protected override IAsyncResult OnBeginClose(TimeSpan timeout, AsyncCallback callback, object state)
{
return new ChainedCloseAsyncResult(timeout, callback, state,
this.channels.BeginClose, this.channels.EndClose,
this.channels.ToArray());
}
protected override void OnEndClose(IAsyncResult result)
{
ChainedCloseAsyncResult.End(result);
}
}
}
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