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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  }