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.apache.logging.slf4j;
018    
019    import java.util.Map;
020    
021    import org.apache.logging.log4j.ThreadContext;
022    import org.slf4j.spi.MDCAdapter;
023    
024    /**
025     *
026     */
027    public class Log4jMDCAdapter implements MDCAdapter {
028    
029        @Override
030        public void put(final String key, final String val) {
031            ThreadContext.put(key, val);
032        }
033    
034        @Override
035        public String get(final String key) {
036            return ThreadContext.get(key);
037        }
038    
039        @Override
040        public void remove(final String key) {
041            ThreadContext.remove(key);
042        }
043    
044        @Override
045        public void clear() {
046            ThreadContext.clearMap();
047        }
048    
049        @Override
050        public Map<String, String> getCopyOfContextMap() {
051            return ThreadContext.getContext();
052        }
053    
054        @Override
055        @SuppressWarnings("unchecked") // nothing we can do about this, restricted by SLF4J API
056        public void setContextMap(@SuppressWarnings("rawtypes") final Map map) {
057            ThreadContext.clearMap();
058            for (final Map.Entry<String, String> entry : ((Map<String, String>) map).entrySet()) {
059                ThreadContext.put(entry.getKey(), entry.getValue());
060            }
061        }
062    }