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    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.lookup;
    18
    19  import java.lang.management.ManagementFactory;
    20  import java.util.List;
    21  import java.util.Map;
    22
    23  import org.apache.logging.log4j.core.config.plugins.Plugin;
    24
    25  /**
    26   * Maps JVM input arguments (but not main arguments) using JMX to acquire JVM arguments.
    27   *
    28   * @see java.lang.management.RuntimeMXBean#getInputArguments()
    29   * @since 2.1
    30   */
    31  @Plugin(name = "jvmrunargs", category = StrLookup.CATEGORY)
    32  public class JmxRuntimeInputArgumentsLookup extends MapLookup {
    33
    34      static {
    35          final List<String> argsList = ManagementFactory.getRuntimeMXBean().getInputArguments();
    36          JMX_SINGLETON = new JmxRuntimeInputArgumentsLookup(MapLookup.toMap(argsList));
    37      }
    38
    39      public static final JmxRuntimeInputArgumentsLookup JMX_SINGLETON;
    40
    41      /**
    42       * Constructor when used directly as a plugin.
    43       */
    44      public JmxRuntimeInputArgumentsLookup() {
    45          super();
    46      }
    47
    48      public JmxRuntimeInputArgumentsLookup(final Map<String, String> map) {
    49          super(map);
    50      }
    51
    52  }