org.apache.tools.ant.util.TeeOutputStream Maven / Gradle / Ivy
/*
* 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.tools.ant.util;
import java.io.OutputStream;
import java.io.IOException;
/**
* A simple T-piece to replicate an output stream into two separate streams
*
*/
public class TeeOutputStream extends OutputStream {
private OutputStream left;
private OutputStream right;
/**
* Constructor for TeeOutputStream.
* @param left one of the output streams.
* @param right the other output stream.
*/
public TeeOutputStream(OutputStream left, OutputStream right) {
this.left = left;
this.right = right;
}
/**
* Close both output streams.
* @throws IOException on error.
*/
public void close() throws IOException {
try {
left.close();
} finally {
right.close();
}
}
/**
* Flush both output streams.
* @throws IOException on error
*/
public void flush() throws IOException {
left.flush();
right.flush();
}
/**
* Write a byte array to both output streams.
* @param b an array of bytes.
* @throws IOException on error.
*/
public void write(byte[] b) throws IOException {
left.write(b);
right.write(b);
}
/**
* Write a byte array to both output streams.
* @param b the data.
* @param off the start offset in the data.
* @param len the number of bytes to write.
* @throws IOException on error.
*/
public void write(byte[] b, int off, int len) throws IOException {
left.write(b, off, len);
right.write(b, off, len);
}
/**
* Write a byte to both output streams.
* @param b the byte to write.
* @throws IOException on error.
*/
public void write(int b) throws IOException {
left.write(b);
right.write(b);
}
}