001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements. See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache license, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License. You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the license for the specific language governing permissions and
015     * limitations under the license.
016     */
017    package org.slf4j.helpers;
018    
019    import org.apache.logging.log4j.ThreadContext;
020    import org.slf4j.spi.MDCAdapter;
021    
022    import java.util.HashMap;
023    import java.util.Map;
024    
025    /**
026     *
027     */
028    public class Log4JMDCAdapter implements MDCAdapter {
029    
030        public void put(String key, String val) {
031            ThreadContext.put(key, val);
032        }
033    
034        public String get(String key) {
035            return ThreadContext.get(key);
036        }
037    
038        public void remove(String key) {
039            ThreadContext.remove(key);
040        }
041    
042        public void clear() {
043            ThreadContext.clear();
044        }
045    
046        public Map getCopyOfContextMap() {
047            return ThreadContext.getContext();
048        }
049    
050        public void setContextMap(Map map) {
051            ThreadContext.clear();
052            for (Map.Entry<String, String> entry : ((Map<String, String>) map).entrySet()) {
053                ThreadContext.put(entry.getKey(), entry.getValue());
054            }
055        }
056    }