14fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy/* 24fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Licensed to the Apache Software Foundation (ASF) under one or more 34fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * contributor license agreements. See the NOTICE file distributed with 44fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * this work for additional information regarding copyright ownership. 54fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * The ASF licenses this file to You under the Apache License, Version 2.0 64fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * (the "License"); you may not use this file except in compliance with 74fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * the License. You may obtain a copy of the License at 84fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * 94fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * http://www.apache.org/licenses/LICENSE-2.0 104fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * 114fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Unless required by applicable law or agreed to in writing, software 124fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * distributed under the License is distributed on an "AS IS" BASIS, 134fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 144fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * See the License for the specific language governing permissions and 154fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * limitations under the License. 164fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 174fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedypackage org.apache.commons.io.output; 184fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 194fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedyimport java.io.Writer; 204fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 214fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy/** 224fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * This {@link Writer} writes all data to the famous <b>/dev/null</b>. 234fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * <p> 244fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * This <code>Writer</code> has no destination (file/socket etc.) and all 254fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * characters written to it are ignored and lost. 264fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * 274fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @version $Id: NullWriter.java 610010 2008-01-08 14:50:59Z niallp $ 284fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 294fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedypublic class NullWriter extends Writer { 304fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 314fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 324fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * A singleton. 334fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 344fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public static final NullWriter NULL_WRITER = new NullWriter(); 354fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 364fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 374fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Constructs a new NullWriter. 384fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 394fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public NullWriter() { 404fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 414fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 424fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 434fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Does nothing - output to <code>/dev/null</code>. 444fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param idx The character to write 454fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 464fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void write(int idx) { 474fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 484fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 494fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 504fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 514fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Does nothing - output to <code>/dev/null</code>. 524fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param chr The characters to write 534fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 544fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void write(char[] chr) { 554fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 564fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 574fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 584fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 594fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Does nothing - output to <code>/dev/null</code>. 604fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param chr The characters to write 614fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param st The start offset 624fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param end The number of characters to write 634fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 644fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void write(char[] chr, int st, int end) { 654fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 664fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 674fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 684fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 694fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Does nothing - output to <code>/dev/null</code>. 704fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param str The string to write 714fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 724fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void write(String str) { 734fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 744fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 754fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 764fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** 774fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * Does nothing - output to <code>/dev/null</code>. 784fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param str The string to write 794fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param st The start offset 804fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy * @param end The number of characters to write 814fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy */ 824fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void write(String str, int st, int end) { 834fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 844fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 854fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 864fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** @see java.io.Writer#flush() */ 874fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void flush() { 884fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 894fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 904fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 914fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy /** @see java.io.Writer#close() */ 924fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy public void close() { 934fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy //to /dev/null 944fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy } 954fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy 964fa0a3295bcacbdcd6a9e7709cf17aa5adb90356Scott Kennedy} 97