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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.
*
*/
package org.apache.qpid.transport;
import org.apache.qpid.transport.util.Logger;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.nio.ByteBuffer;
/**
* Connection
*
* @author Rafael H. Schloming
*
* @todo the channels map should probably be replaced with something
* more efficient, e.g. an array or a map implementation that can use
* short instead of Short
*/
public class Connection
implements Receiver<ProtocolEvent>, Sender<ProtocolEvent>
{
private static final Logger log = Logger.get(Connection.class);
final private Sender<ProtocolEvent> sender;
final private ConnectionDelegate delegate;
private int channelMax = 1;
// want to make this final
private int _connectionId;
final private Map<Integer,Channel> channels = new HashMap<Integer,Channel>();
public Connection(Sender<ProtocolEvent> sender,
ConnectionDelegate delegate)
{
this.sender = sender;
this.delegate = delegate;
}
public void setConnectionId(int id)
{
_connectionId = id;
}
public int getConnectionId()
{
return _connectionId;
}
public ConnectionDelegate getConnectionDelegate()
{
return delegate;
}
public void received(ProtocolEvent event)
{
log.debug("RECV: [%s] %s", this, event);
Channel channel = getChannel(event.getChannel());
channel.received(event);
}
public void send(ProtocolEvent event)
{
log.debug("SEND: [%s] %s", this, event);
sender.send(event);
}
public void flush()
{
log.debug("FLUSH: [%s]", this);
sender.flush();
}
public int getChannelMax()
{
return channelMax;
}
void setChannelMax(int max)
{
channelMax = max;
}
public Channel getChannel()
{
synchronized (channels)
{
for (int i = 0; i < getChannelMax(); i++)
{
if (!channels.containsKey(i))
{
return getChannel(i);
}
}
throw new RuntimeException("no more channels available");
}
}
public Channel getChannel(int number)
{
synchronized (channels)
{
Channel channel = channels.get(number);
if (channel == null)
{
channel = new Channel(this, number, delegate.getSessionDelegate());
channels.put(number, channel);
}
return channel;
}
}
void removeChannel(int number)
{
synchronized (channels)
{
channels.remove(number);
}
}
public void exception(Throwable t)
{
delegate.exception(t);
}
void closeCode(ConnectionClose close)
{
synchronized (channels)
{
for (Channel ch : channels.values())
{
ch.closeCode(close);
}
}
}
public void closed()
{
log.debug("connection closed: %s", this);
synchronized (channels)
{
List<Channel> values = new ArrayList<Channel>(channels.values());
for (Channel ch : values)
{
ch.closed();
}
}
delegate.closed();
}
public void close()
{
sender.close();
}
public String toString()
{
return String.format("conn:%x", System.identityHashCode(this));
}
}
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