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1   /*
2    * Copyright 2001-2004 The Apache Software Foundation.
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.apache.log4j;
18  
19  public class MDC {
20  
21    public static void put(String key, String value) {
22      org.slf4j.MDC.put(key, value);
23    }
24    
25    public static void put(String key, Object value) {
26      if (value != null) {
27        put(key, value.toString());
28      } else {
29        put(key, null);
30      }
31    }
32    
33    public static Object get(String key) {
34      return org.slf4j.MDC.get(key);
35    }
36    
37    public static void remove(String key) {
38      org.slf4j.MDC.remove(key);
39    }
40    
41    public static void clear() {
42      org.slf4j.MDC.clear();
43    }
44  }