/*
* 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.mina.handler.support;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.mina.common.ByteBuffer;
import org.apache.mina.common.IoSession;
import org.apache.mina.common.WriteFuture;
/**
* An {@link OutputStream} that forwards all write operations to
* the associated {@link IoSession}.
*
* @author The Apache Directory Project (mina-dev@directory.apache.org)
* @version $Rev: 446482 $, $Date: 2006-09-15 11:52:57 +0900 (금, 15 9월 2006) $
*
*/
public class IoSessionOutputStream extends OutputStream
{
private final IoSession session;
private WriteFuture lastWriteFuture;
public IoSessionOutputStream( IoSession session )
{
this.session = session;
}
public void close()
{
session.close().join();
}
private void checkClosed() throws IOException
{
if( ! session.isConnected() )
{
throw new IOException( "The session has been closed." );
}
}
private synchronized void write( ByteBuffer buf ) throws IOException
{
checkClosed();
WriteFuture future = session.write( buf );
lastWriteFuture = future;
}
public void write( byte[] b, int off, int len ) throws IOException
{
write( ByteBuffer.wrap( b, off, len ) );
}
public void write( int b ) throws IOException
{
ByteBuffer buf = ByteBuffer.allocate( 1 );
buf.put( ( byte ) b );
buf.flip();
write( buf );
}
public synchronized void flush() throws IOException
{
if( lastWriteFuture == null )
{
return;
}
lastWriteFuture.join();
if( !lastWriteFuture.isWritten() )
{
throw new IOException( "The bytes could not be written to the session" );
}
}
}