org.apache.mina.handler.stream.IoSessionOutputStream Maven / Gradle / Ivy
/**
* Copyright 2007-2015, Kaazing Corporation. All rights reserved.
*
* 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.apache.mina.handler.stream;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.future.WriteFuture;
import org.apache.mina.core.session.IoSession;
/**
* An {@link OutputStream} that forwards all write operations to
* the associated {@link IoSession}.
*
* @author Apache MINA Project
*/
class IoSessionOutputStream extends OutputStream {
private final IoSession session;
private WriteFuture lastWriteFuture;
public IoSessionOutputStream(IoSession session) {
this.session = session;
}
@Override
public void close() throws IOException {
try {
flush();
} finally {
session.close(true).awaitUninterruptibly();
}
}
private void checkClosed() throws IOException {
if (!session.isConnected()) {
throw new IOException("The session has been closed.");
}
}
private synchronized void write(IoBuffer buf) throws IOException {
checkClosed();
WriteFuture future = session.write(buf);
lastWriteFuture = future;
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
write(IoBuffer.wrap(b.clone(), off, len));
}
@Override
public void write(int b) throws IOException {
IoBuffer buf = IoBuffer.allocate(1);
buf.put((byte) b);
buf.flip();
write(buf);
}
@Override
public synchronized void flush() throws IOException {
if (lastWriteFuture == null) {
return;
}
lastWriteFuture.awaitUninterruptibly();
if (!lastWriteFuture.isWritten()) {
throw new IOException(
"The bytes could not be written to the session");
}
}
}