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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
using System;
using System.Collections.Generic;
using Logger = org.apache.qpid.transport.util.Logger;
namespace org.apache.qpid.transport
{
/// <summary>
/// Connection
/// </summary>
public class Connection
{
private static readonly Logger log = Logger.Get(typeof (Connection));
private readonly ISender<IProtocolEvent> _sender;
private readonly ConnectionDelegate _connDdelegate;
private int _channelMax = 1;
private int _connectionId;
private readonly IReceiver<ReceivedPayload<IProtocolEvent>> _receiver;
private readonly Dictionary<int, Channel> _channels = new Dictionary<int, Channel>();
public Connection(IReceiver<ReceivedPayload<IProtocolEvent>> receiver, ISender<IProtocolEvent> sender, ConnectionDelegate connDdelegate)
{
_receiver = receiver;
_sender = sender;
_connDdelegate = connDdelegate;
}
public int ConnectionId
{
get { return _connectionId; }
set { _connectionId = value; }
}
public ConnectionDelegate ConnectionDelegate
{
get { return _connDdelegate; }
}
public int ChannelMax
{
get { return _channelMax; }
set { _channelMax = value; }
}
public void Send(IProtocolEvent pevent)
{
log.Debug("SEND: [{0}] {1}", this, pevent);
_sender.Send(pevent);
}
public void Flush()
{
log.Debug("FLUSH: [{0}]", this);
_sender.Flush();
}
public Channel GetChannel()
{
lock (_channels)
{
for (int i = 0; i < ChannelMax; i++)
{
if (!_channels.ContainsKey(i))
{
return GetChannel(i);
}
}
throw new Exception("no more _channels available");
}
}
public Channel GetChannel(int number)
{
lock (_channels)
{
Channel channel = null;
if (_channels.Count > 0)
{
if( _channels.ContainsKey(number))
channel = _channels[number];
}
if (channel == null)
{
channel = new Channel(this, number, _connDdelegate.GetSessionDelegate());
_receiver.Received += channel.On_ReceivedEvent;
_channels.Add(number, channel);
}
return channel;
}
}
public void RemoveChannel(int number)
{
lock (_channels)
{
_receiver.Received -= _channels[number].On_ReceivedEvent;
_channels.Remove(number);
}
}
public void On_ReceivedEvent(object sender, ReceivedPayload<IProtocolEvent> payload)
{
log.Debug("RECV: [{0}] {1}", this, payload.Payload);
if (_channels.ContainsKey(payload.Payload.Channel)) return;
Channel channel = GetChannel(payload.Payload.Channel);
channel.On_ReceivedEvent(sender, payload);
}
public void On_ReceivedException(Object sender, ExceptionArgs arg)
{
_connDdelegate.RaiseException(arg.Exception);
}
public void On_ReceivedClosed(Object sender, EventArgs arg)
{
log.Debug("Connection Closed: {0}", this);
lock (_channels)
{
foreach (Channel ch in _channels.Values)
{
ch.ClosedFromConnection();
}
}
_channels.Clear();
_connDdelegate.Closed();
}
public void CloseCode(ConnectionClose close)
{
lock (_channels)
{
foreach (Channel ch in _channels.Values)
{
ch.CloseCode(close);
}
}
}
public void Close()
{
_sender.Close();
}
}
}
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