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 * This OutputStream writes all data to the famous <b>/dev/null</b>. 24 * <p> 25 * This output stream has no destination (file/socket etc.) and all 26 * bytes written to it are ignored and lost. 27 * 28 * @author Jeremias Maerki 29 * @version $Id: NullOutputStream.java 610010 2008-01-08 14:50:59Z niallp $ 30 */ 31 public class NullOutputStream extends OutputStream { 32 33 /** 34 * A singleton. 35 */ 36 public static final NullOutputStream NULL_OUTPUT_STREAM = new NullOutputStream(); 37 38 /** 39 * Does nothing - output to <code>/dev/null</code>. 40 * @param b The bytes to write 41 * @param off The start offset 42 * @param len The number of bytes to write 43 */ 44 public void write(byte[] b, int off, int len) { 45 //to /dev/null 46 } 47 48 /** 49 * Does nothing - output to <code>/dev/null</code>. 50 * @param b The byte to write 51 */ 52 public void write(int b) { 53 //to /dev/null 54 } 55 56 /** 57 * Does nothing - output to <code>/dev/null</code>. 58 * @param b The bytes to write 59 * @throws IOException never 60 */ 61 public void write(byte[] b) throws IOException { 62 //to /dev/null 63 } 64 65 } 66
