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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.ServiceModel.Dispatcher
{
using System;
using System.Collections.Generic;
using System.ServiceModel.Channels;
class SynchronizedChannelCollection<TChannel> : SynchronizedCollection<TChannel>
where TChannel : IChannel
{
EventHandler onChannelClosed;
EventHandler onChannelFaulted;
internal SynchronizedChannelCollection(object syncRoot)
: base(syncRoot)
{
this.onChannelClosed = new EventHandler(OnChannelClosed);
this.onChannelFaulted = new EventHandler(OnChannelFaulted);
}
void AddingChannel(TChannel channel)
{
channel.Faulted += this.onChannelFaulted;
channel.Closed += this.onChannelClosed;
}
void RemovingChannel(TChannel channel)
{
channel.Faulted -= this.onChannelFaulted;
channel.Closed -= this.onChannelClosed;
}
void OnChannelClosed(object sender, EventArgs args)
{
TChannel channel = (TChannel)sender;
this.Remove(channel);
}
void OnChannelFaulted(object sender, EventArgs args)
{
TChannel channel = (TChannel)sender;
this.Remove(channel);
}
protected override void ClearItems()
{
List<TChannel> items = this.Items;
for (int i = 0; i < items.Count; i++)
{
this.RemovingChannel(items[i]);
}
base.ClearItems();
}
protected override void InsertItem(int index, TChannel item)
{
this.AddingChannel(item);
base.InsertItem(index, item);
}
protected override void RemoveItem(int index)
{
TChannel oldItem = this.Items[index];
base.RemoveItem(index);
this.RemovingChannel(oldItem);
}
protected override void SetItem(int index, TChannel item)
{
TChannel oldItem = this.Items[index];
this.AddingChannel(item);
base.SetItem(index, item);
this.RemovingChannel(oldItem);
}
}
}
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