1 /** 2 * Copyright (c) 2004-2011 QOS.ch 3 * All rights reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be 14 * included in all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25 package org.slf4j.helpers; 26 27 import java.util.Map; 28 29 import org.slf4j.spi.MDCAdapter; 30 31 /** 32 * This adapter is an empty implementation of the {@link MDCAdapter} interface. 33 * It is used for all logging systems which do not support mapped 34 * diagnostic contexts such as JDK14, simple and NOP. 35 * 36 * @author Ceki Gülcü 37 * 38 * @since 1.4.1 39 */ 40 public class NOPMDCAdapter implements MDCAdapter { 41 clear()42 public void clear() { 43 } 44 get(String key)45 public String get(String key) { 46 return null; 47 } 48 put(String key, String val)49 public void put(String key, String val) { 50 } 51 remove(String key)52 public void remove(String key) { 53 } 54 getCopyOfContextMap()55 public Map<String, String> getCopyOfContextMap() { 56 return null; 57 } 58 setContextMap(Map<String, String> contextMap)59 public void setContextMap(Map<String, String> contextMap) { 60 // NOP 61 } 62 63 } 64