/*
* @(#) $Id: SocketSessionImpl.java 398039 2006-04-28 23:36:27Z proyal $
*
* Copyright 2004 The Apache Software Foundation
*
* Licensed 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.openamq.bio;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;
import java.nio.ByteBuffer;
import java.nio.channels.ByteChannel;
/**
* A simpler alternative to the non-blocking enabled SocketChannel for
* use with blocking io only. Not threadsafe.
*/
class SimpleSocketChannel implements ByteChannel
{
private final Socket socket;
private final OutputStream out;
private final InputStream in;
private final byte[] buffer = new byte[2048];
SimpleSocketChannel(Socket socket) throws IOException
{
this.socket = socket;
out = socket.getOutputStream();
in = socket.getInputStream();
}
Socket socket()
{
return socket;
}
public int read(ByteBuffer dst) throws IOException
{
if (dst == null)
{
throw new NullPointerException("Null buffer passed into read");
}
int read = in.read(buffer, 0, Math.min(buffer.length, dst.limit() - dst.position()));
if (read > 0)
{
dst.put(buffer, 0, read);
}
return read;
}
public int write(ByteBuffer dst) throws IOException
{
byte[] data = new byte[dst.remaining()];
dst.get(data);
out.write(data);
return data.length;
}
public boolean isOpen()
{
return socket.isConnected();
}
public void close() throws IOException
{
socket.close();
}
}