1 /* 2 * Licensed to the Apache Software Foundation (ASF) under one or more 3 * contributor license agreements. See the NOTICE file distributed with 4 * this work for additional information regarding copyright ownership. 5 * The ASF licenses this file to You under the Apache License, Version 2.0 6 * (the "License"); you may not use this file except in compliance with 7 * the License. You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 package org.apache.commons.io.output; 18 19 import java.io.IOException; 20 import java.io.OutputStream; 21 22 /** 23 * Classic splitter of OutputStream. Named after the unix 'tee' 24 * command. It allows a stream to be branched off so there 25 * are now two streams. 26 * 27 * @version $Id: TeeOutputStream.java 471628 2006-11-06 04:06:45Z bayard $ 28 */ 29 public class TeeOutputStream extends ProxyOutputStream { 30 31 /** the second OutputStream to write to */ 32 protected OutputStream branch; 33 34 /** 35 * Constructs a TeeOutputStream. 36 * @param out the main OutputStream 37 * @param branch the second OutputStream 38 */ 39 public TeeOutputStream( OutputStream out, OutputStream branch ) { 40 super(out); 41 this.branch = branch; 42 } 43 44 /** @see java.io.OutputStream#write(byte[]) */ 45 public synchronized void write(byte[] b) throws IOException { 46 super.write(b); 47 this.branch.write(b); 48 } 49 50 /** @see java.io.OutputStream#write(byte[], int, int) */ 51 public synchronized void write(byte[] b, int off, int len) throws IOException { 52 super.write(b, off, len); 53 this.branch.write(b, off, len); 54 } 55 56 /** @see java.io.OutputStream#write(int) */ 57 public synchronized void write(int b) throws IOException { 58 super.write(b); 59 this.branch.write(b); 60 } 61 62 /** 63 * Flushes both streams. 64 * 65 * @see java.io.OutputStream#flush() 66 */ 67 public void flush() throws IOException { 68 super.flush(); 69 this.branch.flush(); 70 } 71 72 /** 73 * Closes both streams. 74 * 75 * @see java.io.OutputStream#close() 76 */ 77 public void close() throws IOException { 78 super.close(); 79 this.branch.close(); 80 } 81 82 }