//
// ChannelListenerBase.cs
//
// Author: Atsushi Enomoto (atsushi@ximian.com)
//
// Copyright (C) 2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.ServiceModel;

namespace System.ServiceModel.Channels
{
	public abstract class ChannelListenerBase<TChannel>
		: ChannelListenerBase, IChannelListener<TChannel>, 
		IChannelListener,  ICommunicationObject
		where TChannel : class, IChannel
	{
		IDefaultCommunicationTimeouts timeouts;

		protected ChannelListenerBase ()
			: this (DefaultCommunicationTimeouts.Instance)
		{
		}

		protected ChannelListenerBase (
			IDefaultCommunicationTimeouts timeouts)
		{
			if (timeouts == null)
				throw new ArgumentNullException ("timeouts");
			this.timeouts = timeouts;
		}

		public TChannel AcceptChannel ()
		{
			return AcceptChannel (timeouts.ReceiveTimeout);
		}

		public TChannel AcceptChannel (TimeSpan timeout)
		{
			ThrowIfDisposedOrNotOpen ();
			return OnAcceptChannel (timeout);
		}

		public IAsyncResult BeginAcceptChannel (
			AsyncCallback callback, object asyncState)
		{
			return BeginAcceptChannel (
				timeouts.ReceiveTimeout, callback, asyncState);
		}

		public IAsyncResult BeginAcceptChannel (TimeSpan timeout,
			AsyncCallback callback, object asyncState)
		{
			return OnBeginAcceptChannel (timeout, callback, asyncState);
		}

		public TChannel EndAcceptChannel (IAsyncResult result)
		{
			return OnEndAcceptChannel (result);
		}

		protected abstract TChannel OnAcceptChannel (TimeSpan timeout);

		protected abstract IAsyncResult OnBeginAcceptChannel (TimeSpan timeout,
			AsyncCallback callback, object asyncState);

		protected abstract TChannel OnEndAcceptChannel (IAsyncResult result);
	}
}