001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017package org.apache.logging.log4j.core.jmx; 018 019import javax.management.ObjectName; 020 021import org.apache.logging.log4j.core.selector.ContextSelector; 022import org.apache.logging.log4j.core.util.Assert; 023 024/** 025 * Implementation of the {@code ContextSelectorAdminMBean} interface. 026 */ 027public class ContextSelectorAdmin implements ContextSelectorAdminMBean { 028 029 private final ObjectName objectName; 030 private final ContextSelector selector; 031 032 /** 033 * Constructs a new {@code ContextSelectorAdmin}. 034 * 035 * @param contextName name of the LoggerContext under which to register this 036 * ContextSelectorAdmin. Note that the ContextSelector may be 037 * registered multiple times, once for each LoggerContext. In web 038 * containers, each web application has its own LoggerContext and 039 * by associating the ContextSelector with the LoggerContext, all 040 * associated MBeans can be unloaded when the web application is 041 * undeployed. 042 * @param selector the instrumented object 043 */ 044 public ContextSelectorAdmin(final String contextName, final ContextSelector selector) { 045 super(); 046 this.selector = Assert.requireNonNull(selector, "ContextSelector"); 047 try { 048 final String mbeanName = String.format(PATTERN, Server.escape(contextName)); 049 objectName = new ObjectName(mbeanName); 050 } catch (final Exception e) { 051 throw new IllegalStateException(e); 052 } 053 } 054 055 /** 056 * Returns the {@code ObjectName} of this mbean. 057 * 058 * @return the {@code ObjectName} 059 * @see ContextSelectorAdminMBean#PATTERN 060 */ 061 public ObjectName getObjectName() { 062 return objectName; 063 } 064 065 @Override 066 public String getImplementationClassName() { 067 return selector.getClass().getName(); 068 } 069}