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.slf4j.helpers;
18
19 import org.slf4j.IMarkerFactory;
20 import org.slf4j.Marker;
21
22 import java.util.concurrent.ConcurrentHashMap;
23 import java.util.concurrent.ConcurrentMap;
24
25 /**
26 *
27 */
28 public class Log4JMarkerFactory implements IMarkerFactory {
29
30 private ConcurrentMap<String, Marker> markerMap = new ConcurrentHashMap<String, Marker>();
31
32 public Marker getMarker(String name) {
33 if (name == null) {
34 throw new IllegalArgumentException("Marker name must not be null");
35 }
36 Marker marker = markerMap.get(name);
37 if (marker == null) {
38 marker = new MarkerWrapper(name);
39 }
40 return marker;
41 }
42
43 public boolean exists(String name) {
44 return markerMap.containsKey(name);
45 }
46
47 public boolean detachMarker(String name) {
48 return false;
49 }
50
51 public Marker getDetachedMarker(String name) {
52 return new MarkerWrapper(name);
53 }
54 }