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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.qpidity.transport.network;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
import org.apache.qpidity.transport.Constant;
import org.apache.qpidity.transport.ProtocolError;
import org.apache.qpidity.transport.ProtocolHeader;
import org.apache.qpidity.transport.Sender;
import static org.apache.qpidity.transport.network.Frame.*;
/**
* OutputHandler
*
*/
public class OutputHandler implements Sender<NetworkEvent>, NetworkDelegate
{
private Sender<ByteBuffer> sender;
private Object lock = new Object();
private int bytes = 0;
private List<Frame> frames = new ArrayList<Frame>();
public OutputHandler(Sender<ByteBuffer> sender)
{
this.sender = sender;
}
public void send(NetworkEvent event)
{
event.delegate(this);
}
public void close()
{
synchronized (lock)
{
sender.close();
}
}
public void init(ProtocolHeader header)
{
synchronized (lock)
{
sender.send(header.toByteBuffer());
}
}
public void frame(Frame frame)
{
synchronized (lock)
{
frames.add(frame);
bytes += HEADER_SIZE + frame.getSize();
if (frame.isLastFrame() && frame.isLastSegment() || bytes > 64*1024)
{
ByteBuffer buf = ByteBuffer.allocate(bytes);
for (Frame f : frames)
{
buf.put(f.getFlags());
buf.put((byte) f.getType().getValue());
buf.putShort((short) (f.getSize() + HEADER_SIZE));
// RESERVED
buf.put(RESERVED);
buf.put(f.getTrack());
buf.putShort((short) f.getChannel());
// RESERVED
buf.putInt(0);
for(ByteBuffer frg : f)
{
buf.put(frg);
}
}
buf.flip();
frames.clear();
bytes = 0;
sender.send(buf);
}
}
}
public void error(ProtocolError error)
{
throw new IllegalStateException("XXX");
}
}
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