1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 package jdk.vm.ci.management;
  24 
  25 import java.util.ArrayList;
  26 import java.util.Collections;
  27 import java.util.HashSet;
  28 import java.util.List;
  29 import java.util.Map;
  30 import java.util.Set;
  31 import sun.management.spi.PlatformMBeanProvider;
  32 import sun.management.spi.PlatformMBeanProvider.PlatformComponent;
  33 import jdk.vm.ci.hotspot.HotSpotJVMCIRuntime;
  34 
  35 public final class JVMCIMBeans extends PlatformMBeanProvider {
  36     public List<PlatformComponent<?>> getPlatformComponentList() {
  37         HotSpotJVMCIRuntime runtime = HotSpotJVMCIRuntime.runtime();
  38         List<PlatformComponent<?>> components = new ArrayList<>();
  39         for (Map.Entry<String, Object> entry : runtime.mbeans().entrySet()) {
  40             components.add(new HotSpotRuntimeMBeanComponent(entry.getKey(), entry.getValue()));
  41         }
  42         return components;
  43     }
  44 
  45     private static final class HotSpotRuntimeMBeanComponent implements PlatformComponent<Object> {
  46 
  47         private final String name;
  48         private final Object mbean;
  49 
  50         HotSpotRuntimeMBeanComponent(String name, Object mbean) {
  51             this.name = name;
  52             this.mbean = mbean;
  53         }
  54 
  55         @Override
  56         public Set<Class<?>> mbeanInterfaces() {
  57             return Collections.singleton(mbean.getClass());
  58         }
  59 
  60         @Override
  61         public Set<String> mbeanInterfaceNames() {
  62             return Collections.singleton(name);
  63         }
  64 
  65         @Override
  66         public String getObjectNamePattern() {
  67             return name;
  68         }
  69 
  70         @Override
  71         public Map<String, Object> nameToMBeanMap() {
  72             return Collections.<String, Object>singletonMap(name, mbean);
  73         }
  74     }
  75 }