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    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.logging.slf4j;
    18
    19  import java.util.Map;
    20
    21  import org.apache.logging.log4j.ThreadContext;
    22  import org.slf4j.spi.MDCAdapter;
    23
    24  /**
    25   *
    26   */
    27  public class Log4jMDCAdapter implements MDCAdapter {
    28
    29      @Override
    30      public void put(final String key, final String val) {
    31          ThreadContext.put(key, val);
    32      }
    33
    34      @Override
    35      public String get(final String key) {
    36          return ThreadContext.get(key);
    37      }
    38
    39      @Override
    40      public void remove(final String key) {
    41          ThreadContext.remove(key);
    42      }
    43
    44      @Override
    45      public void clear() {
    46          ThreadContext.clearMap();
    47      }
    48
    49      @Override
    50      public Map<String, String> getCopyOfContextMap() {
    51          return ThreadContext.getContext();
    52      }
    53
    54      @Override
    55      @SuppressWarnings("unchecked") // nothing we can do about this, restricted by SLF4J API
    56      public void setContextMap(@SuppressWarnings("rawtypes") final Map map) {
    57          ThreadContext.clearMap();
    58          for (final Map.Entry<String, String> entry : ((Map<String, String>) map).entrySet()) {
    59              ThreadContext.put(entry.getKey(), entry.getValue());
    60          }
    61      }
    62  }