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.log4j.core.jmx;
18
19 import javax.management.ObjectName;
20
21 import org.apache.logging.log4j.core.selector.ContextSelector;
22 import org.apache.logging.log4j.core.util.Assert;
23
24 /**
25 * Implementation of the {@code ContextSelectorAdminMBean} interface.
26 */
27 public class ContextSelectorAdmin implements ContextSelectorAdminMBean {
28
29 private final ObjectName objectName;
30 private final ContextSelector selector;
31
32 /**
33 * Constructs a new {@code ContextSelectorAdmin}.
34 *
35 * @param contextName name of the LoggerContext under which to register this
36 * ContextSelectorAdmin. Note that the ContextSelector may be
37 * registered multiple times, once for each LoggerContext. In web
38 * containers, each web application has its own LoggerContext and
39 * by associating the ContextSelector with the LoggerContext, all
40 * associated MBeans can be unloaded when the web application is
41 * undeployed.
42 * @param selector the instrumented object
43 */
44 public ContextSelectorAdmin(final String contextName, final ContextSelector selector) {
45 super();
46 this.selector = Assert.requireNonNull(selector, "ContextSelector");
47 try {
48 final String mbeanName = String.format(PATTERN, Server.escape(contextName));
49 objectName = new ObjectName(mbeanName);
50 } catch (final Exception e) {
51 throw new IllegalStateException(e);
52 }
53 }
54
55 /**
56 * Returns the {@code ObjectName} of this mbean.
57 *
58 * @return the {@code ObjectName}
59 * @see ContextSelectorAdminMBean#PATTERN
60 */
61 public ObjectName getObjectName() {
62 return objectName;
63 }
64
65 @Override
66 public String getImplementationClassName() {
67 return selector.getClass().getName();
68 }
69 }