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 import java.util.Hashtable;
20 import java.util.Map;
21
22 public class MDC {
23
24 public static void put(String key, String value) {
25 org.slf4j.MDC.put(key, value);
26 }
27
28 public static void put(String key, Object value) {
29 if (value != null) {
30 put(key, value.toString());
31 } else {
32 put(key, null);
33 }
34 }
35
36 public static Object get(String key) {
37 return org.slf4j.MDC.get(key);
38 }
39
40 public static void remove(String key) {
41 org.slf4j.MDC.remove(key);
42 }
43
44 public static void clear() {
45 org.slf4j.MDC.clear();
46 }
47
48 /**
49 * This method is not part of the Log4J public API. However it
50 * has been called by other projects. This method is here temporarily
51 * until projects who are depending on this method release fixes.
52 *
53 * @return a copy of the underlying map returned as a Hashtable
54 */
55 @SuppressWarnings({ "rawtypes", "unchecked" })
56 @Deprecated
57 public static Hashtable getContext() {
58 Map map = org.slf4j.MDC.getCopyOfContextMap();
59
60 if (map != null) {
61 return new Hashtable(map);
62 } else {
63 return new Hashtable();
64 }
65 }
66 }