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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.network.io;
import java.io.InputStream;
import java.net.Socket;
import java.net.SocketException;
import java.nio.ByteBuffer;
import org.apache.qpid.transport.Receiver;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* IoNetworkHandler handles incoming data and sends it to the {@link Receiver}.
*/
public class IoNetworkHandler implements Runnable
{
private static final Logger _log = LoggerFactory.getLogger(IoNetworkHandler.class);
private final Receiver<ByteBuffer> _receiver;
private final int _bufSize;
private final Socket _socket;
private final boolean _shutdownBroken = ((String) System.getProperties().get("os.name")).matches("(?i).*windows.*");
public IoNetworkHandler(Socket socket, Receiver<ByteBuffer> receiver, int bufSize)
{
_socket = socket;
_receiver = receiver;
_bufSize = bufSize;
}
public void run()
{
final int threshold = _bufSize / 2;
// I set the read buffer size simillar to SO_RCVBUF
// Haven't tested with a lower value to see if it's better or worse
byte[] buffer = new byte[_bufSize];
try
{
InputStream in = _socket.getInputStream();
int read = 0;
int offset = 0;
while ((read = in.read(buffer, offset, _bufSize - offset)) != -1)
{
if (read > 0)
{
ByteBuffer b = ByteBuffer.wrap(buffer,offset,read);
_receiver.received(b);
offset+=read;
if (offset > threshold)
{
offset = 0;
buffer = new byte[_bufSize];
}
}
}
}
catch (Throwable t)
{
if (!(_shutdownBroken &&
t instanceof SocketException &&
t.getMessage().equalsIgnoreCase("socket closed") &&
_socket.isClosed()) && _socket.isConnected())
{
_receiver.exception(t);
}
}
finally
{
_receiver.closed();
try
{
_socket.close();
}
catch(Exception e)
{
_log.error("Error closing socket", e);
}
}
}
}
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