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 java.util.Objects;
20
21 import javax.management.ObjectName;
22
23 import org.apache.logging.log4j.core.selector.ContextSelector;
24
25 /**
26 * Implementation of the {@code ContextSelectorAdminMBean} interface.
27 */
28 public class ContextSelectorAdmin implements ContextSelectorAdminMBean {
29
30 private final ObjectName objectName;
31 private final ContextSelector selector;
32
33 /**
34 * Constructs a new {@code ContextSelectorAdmin}.
35 *
36 * @param contextName name of the LoggerContext under which to register this
37 * ContextSelectorAdmin. Note that the ContextSelector may be
38 * registered multiple times, once for each LoggerContext. In web
39 * containers, each web application has its own LoggerContext and
40 * by associating the ContextSelector with the LoggerContext, all
41 * associated MBeans can be unloaded when the web application is
42 * undeployed.
43 * @param selector the instrumented object
44 */
45 public ContextSelectorAdmin(final String contextName, final ContextSelector selector) {
46 super();
47 this.selector = Objects.requireNonNull(selector, "ContextSelector");
48 try {
49 final String mbeanName = String.format(PATTERN, Server.escape(contextName));
50 objectName = new ObjectName(mbeanName);
51 } catch (final Exception e) {
52 throw new IllegalStateException(e);
53 }
54 }
55
56 /**
57 * Returns the {@code ObjectName} of this mbean.
58 *
59 * @return the {@code ObjectName}
60 * @see ContextSelectorAdminMBean#PATTERN
61 */
62 public ObjectName getObjectName() {
63 return objectName;
64 }
65
66 @Override
67 public String getImplementationClassName() {
68 return selector.getClass().getName();
69 }
70 }