/*
* 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: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (금, 13 7월 2007) $
*
*/
public class IoSessionOutputStream extends OutputStream {
private final IoSession session;
private WriteFuture lastWriteFuture;
public IoSessionOutputStream(IoSession session) {
this.session = session;
}
public void close() throws IOException {
try {
flush();
} finally {
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((byte[]) b.clone(), 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");
}
}
}