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     */
017    package org.apache.logging.log4j.core.lookup;
018    
019    import java.lang.management.ManagementFactory;
020    import java.util.List;
021    import java.util.Map;
022    
023    import org.apache.logging.log4j.core.config.plugins.Plugin;
024    
025    /**
026     * Maps JVM input arguments (but not main arguments) using JMX to acquire JVM arguments.
027     *
028     * @see java.lang.management.RuntimeMXBean#getInputArguments()
029     * @since 2.1
030     */
031    @Plugin(name = "jvmrunargs", category = StrLookup.CATEGORY)
032    public class JmxRuntimeInputArgumentsLookup extends MapLookup {
033    
034        static {
035            final List<String> argsList = ManagementFactory.getRuntimeMXBean().getInputArguments();
036            JMX_SINGLETON = new JmxRuntimeInputArgumentsLookup(MapLookup.toMap(argsList));
037        }
038    
039        public static final JmxRuntimeInputArgumentsLookup JMX_SINGLETON;
040    
041        /**
042         * Constructor when used directly as a plugin.
043         */
044        public JmxRuntimeInputArgumentsLookup() {
045            super();
046        }
047    
048        public JmxRuntimeInputArgumentsLookup(final Map<String, String> map) {
049            super(map);
050        }
051    
052    }