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* Copyright 2001-2004 The Apache Software Foundation.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.commons.io.output;
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import java.io.IOException;
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import java.io.OutputStream;
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* Classic splitter of OutputStream. Named after the unix 'tee'
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* command. It allows a stream to be branched off so there
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* are now two streams.
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* @author <a href="mailto:bayard@apache.org">Henri Yandell</a>
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* @version $Id: TeeOutputStream.java,v 1.6 2004/02/23 04:53:04 bayard Exp $
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public class TeeOutputStream extends ProxyOutputStream {
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/** the second OutputStream to write to */
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protected OutputStream branch;
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* Constructs a TeeOutputStream.
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* @param out the main OutputStream
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* @param branch the second OutputStream
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public TeeOutputStream( OutputStream out, OutputStream branch ) {
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/** @see java.io.OutputStream#write(byte[]) */
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public synchronized void write(byte[] b) throws IOException {
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/** @see java.io.OutputStream#write(byte[], int, int) */
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public synchronized void write(byte[] b, int off, int len) throws IOException {
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super.write(b, off, len);
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this.branch.write(b, off, len);
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/** @see java.io.OutputStream#write(int) */
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public synchronized void write(int b) throws IOException {
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* Flushes both streams.
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* @see java.io.OutputStream#flush()
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public void flush() throws IOException {
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* Closes both streams.
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* @see java.io.OutputStream#close()
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public void close() throws IOException {