/*
* 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.sshd.common.channel;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.channels.Channel;
/**
* TODO Add javadoc
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class ChannelPipedOutputStream extends OutputStream implements Channel {
private final ChannelPipedSink sink;
private final byte[] b = new byte[1];
private boolean closed;
public ChannelPipedOutputStream(ChannelPipedSink sink) {
this.sink = sink;
}
@Override
public void write(int i) throws IOException {
synchronized (b) {
b[0] = (byte) i;
write(b, 0, 1);
}
}
@Override
public void write(byte[] b, int off, int len) throws IOException {
if (!isOpen()) {
throw new IOException("write(len=" + len + ") Stream has been closed");
}
sink.receive(b, off, len);
}
@Override
public boolean isOpen() {
return !closed;
}
@Override
public void flush() throws IOException {
if (!isOpen()) {
throw new IOException("flush() Stream has been closed");
}
}
@Override
public void close() throws IOException {
if (isOpen()) {
try {
sink.eof();
} finally {
closed = true;
}
}
}
}