1 /*
2 * Copyright (c) 2015, 2024, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.sun.management.internal;
26
27 import com.sun.management.DiagnosticCommandMBean;
28 import com.sun.management.HotSpotDiagnosticMXBean;
29 import com.sun.management.ThreadMXBean;
30 import java.lang.management.ManagementFactory;
31 import java.lang.management.MemoryManagerMXBean;
32 import java.lang.management.OperatingSystemMXBean;
33 import java.security.AccessController;
34 import java.security.PrivilegedAction;
35 import java.util.ArrayList;
36 import java.util.Collections;
37 import java.util.HashMap;
38 import java.util.List;
39 import java.util.Map;
40 import java.util.Set;
41 import java.util.stream.Collectors;
42 import java.util.stream.Stream;
43 import javax.management.DynamicMBean;
44 import jdk.management.VirtualThreadSchedulerMXBean;
45 import sun.management.ManagementFactoryHelper;
46 import sun.management.spi.PlatformMBeanProvider;
47
48 @SuppressWarnings({"removal", "restricted"})
49 public final class PlatformMBeanProviderImpl extends PlatformMBeanProvider {
50 static final String DIAGNOSTIC_COMMAND_MBEAN_NAME =
51 "com.sun.management:type=DiagnosticCommand";
52
53 private final List<PlatformComponent<?>> mxbeanList;
54 private static HotSpotDiagnostic hsDiagMBean = null;
55 private static OperatingSystemMXBean osMBean = null;
56
57 static {
58 AccessController.doPrivileged((PrivilegedAction<Void>) () -> {
59 System.loadLibrary("management_ext");
60 return null;
61 });
62 }
63
64 public PlatformMBeanProviderImpl() {
65 mxbeanList = Collections.unmodifiableList(init());
66 }
67
68 @Override
69 public List<PlatformComponent<?>> getPlatformComponentList() {
70 return mxbeanList;
71 }
72
73 private List<PlatformComponent<?>> init() {
74 ArrayList<PlatformComponent<?>> initMBeanList = new ArrayList<>();
75 /**
76 * Garbage Collector in the Java virtual machine.
77 */
78 initMBeanList.add(new PlatformComponent<MemoryManagerMXBean>() {
79 private final Set<String> garbageCollectorMXBeanInterfaceNames
80 = Collections.unmodifiableSet(
81 Stream.of("java.lang.management.MemoryManagerMXBean",
82 "java.lang.management.GarbageCollectorMXBean",
83 "com.sun.management.GarbageCollectorMXBean")
84 .collect(Collectors.toSet()));
85
86 @Override
87 public Set<Class<? extends MemoryManagerMXBean>> mbeanInterfaces() {
88 return Stream.of(MemoryManagerMXBean.class,
89 java.lang.management.GarbageCollectorMXBean.class,
90 com.sun.management.GarbageCollectorMXBean.class)
91 .collect(Collectors.toSet());
92 }
93
94 @Override
95 public Set<String> mbeanInterfaceNames() {
96 return garbageCollectorMXBeanInterfaceNames;
97 }
98
99 @Override
100 public String getObjectNamePattern() {
101 return ManagementFactory.GARBAGE_COLLECTOR_MXBEAN_DOMAIN_TYPE + ",name=*";
102 }
103
104 @Override
105 public boolean isSingleton() {
106 return false; // zero or more instances
107 }
108
109 @Override
110 public Map<String, MemoryManagerMXBean> nameToMBeanMap() {
111 List<java.lang.management.GarbageCollectorMXBean> list
112 = ManagementFactoryHelper.getGarbageCollectorMXBeans();
113 Map<String, MemoryManagerMXBean> map;
114 if (list.isEmpty()) {
115 map = Collections.emptyMap();
116 } else {
117 map = new HashMap<>(list.size());
118 for (MemoryManagerMXBean gcm : list) {
119 map.put(gcm.getObjectName().getCanonicalName(),
120 gcm);
121 }
122 }
123
124 return map;
125 }
126 });
127
128 /**
129 * Threading system of the Java virtual machine.
130 */
131 initMBeanList.add(new PlatformComponent<java.lang.management.ThreadMXBean>() {
132 private final Set<String> threadMXBeanInterfaceNames
133 = Collections.unmodifiableSet(
134 Stream.of("java.lang.management.ThreadMXBean",
135 "com.sun.management.ThreadMXBean")
136 .collect(Collectors.toSet()));
137 private ThreadMXBean threadMBean = null;
138
139 @Override
140 public Set<Class<? extends java.lang.management.ThreadMXBean>> mbeanInterfaces() {
141 return Stream.of(java.lang.management.ThreadMXBean.class,
142 com.sun.management.ThreadMXBean.class)
143 .collect(Collectors.toSet());
144 }
145
146 @Override
147 public Set<String> mbeanInterfaceNames() {
148 return threadMXBeanInterfaceNames;
149 }
150
151 @Override
152 public String getObjectNamePattern() {
153 return ManagementFactory.THREAD_MXBEAN_NAME;
154 }
155
156 @Override
157 public synchronized Map<String, java.lang.management.ThreadMXBean> nameToMBeanMap() {
158 if (threadMBean == null) {
159 threadMBean = new HotSpotThreadImpl(ManagementFactoryHelper.getVMManagement());
160 }
161 return Collections.singletonMap(
162 ManagementFactory.THREAD_MXBEAN_NAME,
163 threadMBean);
164 }
165 });
166
167 /**
168 * VirtualThreadSchedulerMXBean.
169 */
170 initMBeanList.add(new PlatformComponent<VirtualThreadSchedulerMXBean>() {
171 private final Set<Class<? extends VirtualThreadSchedulerMXBean>> mbeanInterfaces =
172 Set.of(VirtualThreadSchedulerMXBean.class);
173 private final Set<String> mbeanInterfaceNames =
174 Set.of(VirtualThreadSchedulerMXBean.class.getName());
175 private VirtualThreadSchedulerMXBean impl;
176
177 @Override
178 public Set<Class<? extends VirtualThreadSchedulerMXBean>> mbeanInterfaces() {
179 return mbeanInterfaces;
180 }
181
182 @Override
183 public Set<String> mbeanInterfaceNames() {
184 return mbeanInterfaceNames;
185 }
186
187 @Override
188 public String getObjectNamePattern() {
189 return "jdk.management:type=VirtualThreadScheduler";
190 }
191
192 @Override
193 public Map<String, VirtualThreadSchedulerMXBean> nameToMBeanMap() {
194 VirtualThreadSchedulerMXBean impl = this.impl;
195 if (impl == null) {
196 this.impl = impl = VirtualThreadSchedulerImpls.create();
197 }
198 return Map.of("jdk.management:type=VirtualThreadScheduler", impl);
199 }
200 });
201
202 /**
203 * OperatingSystemMXBean
204 */
205 initMBeanList.add(new PlatformComponent<OperatingSystemMXBean>() {
206 private final Set<String> operatingSystemMXBeanInterfaceNames
207 = Collections.unmodifiableSet(
208 Stream.of("java.lang.management.OperatingSystemMXBean",
209 "com.sun.management.OperatingSystemMXBean",
210 "com.sun.management.UnixOperatingSystemMXBean")
211 .collect(Collectors.toSet()));
212
213 @Override
214 public Set<Class<? extends OperatingSystemMXBean>> mbeanInterfaces() {
215 return Stream.of(java.lang.management.OperatingSystemMXBean.class,
216 com.sun.management.OperatingSystemMXBean.class,
217 com.sun.management.UnixOperatingSystemMXBean.class)
218 .collect(Collectors.toSet());
219 }
220
221 @Override
222 public Set<String> mbeanInterfaceNames() {
223 return operatingSystemMXBeanInterfaceNames;
224 }
225
226 @Override
227 public String getObjectNamePattern() {
228 return ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME;
229 }
230
231 @Override
232 public Map<String, java.lang.management.OperatingSystemMXBean> nameToMBeanMap() {
233 return Collections.<String, java.lang.management.OperatingSystemMXBean>singletonMap(
234 ManagementFactory.OPERATING_SYSTEM_MXBEAN_NAME,
235 getOperatingSystemMXBean());
236 }
237 });
238
239 /**
240 * Diagnostic support for the HotSpot Virtual Machine.
241 */
242 initMBeanList.add(new PlatformComponent<com.sun.management.HotSpotDiagnosticMXBean>() {
243 private final Set<String> hotSpotDiagnosticMXBeanInterfaceNames =
244 Collections.singleton("com.sun.management.HotSpotDiagnosticMXBean");
245
246 @Override
247 public Set<Class<? extends com.sun.management.HotSpotDiagnosticMXBean>> mbeanInterfaces() {
248 return Collections.singleton(com.sun.management.HotSpotDiagnosticMXBean.class);
249 }
250
251 @Override
252 public Set<String> mbeanInterfaceNames() {
253 return hotSpotDiagnosticMXBeanInterfaceNames;
254 }
255
256 @Override
257 public String getObjectNamePattern() {
258 return "com.sun.management:type=HotSpotDiagnostic";
259 }
260
261 @Override
262 public Map<String, com.sun.management.HotSpotDiagnosticMXBean> nameToMBeanMap() {
263 return Collections.<String, com.sun.management.HotSpotDiagnosticMXBean>singletonMap(
264 "com.sun.management:type=HotSpotDiagnostic",
265 getDiagnosticMXBean());
266 }
267 });
268
269 /**
270 * Diagnostic command MBean
271 */
272 DiagnosticCommandMBean diagMBean = DiagnosticCommandImpl.getDiagnosticCommandMBean();
273 if (diagMBean != null) {
274 initMBeanList.add(new PlatformComponent<DynamicMBean>() {
275 final Set<String> dynamicMBeanInterfaceNames
276 = Collections.singleton("javax.management.DynamicMBean");
277
278 @Override
279 public Set<String> mbeanInterfaceNames() {
280 return dynamicMBeanInterfaceNames;
281 }
282
283 @Override
284 public Set<Class<? extends DynamicMBean>> mbeanInterfaces() {
285 // DynamicMBean cannot be used to find an MBean by ManagementFactory
286 return Collections.emptySet();
287 }
288
289 @Override
290 public String getObjectNamePattern() {
291 return DIAGNOSTIC_COMMAND_MBEAN_NAME;
292 }
293
294 @Override
295 public Map<String, DynamicMBean> nameToMBeanMap() {
296 return Collections.<String, DynamicMBean>singletonMap(
297 DIAGNOSTIC_COMMAND_MBEAN_NAME,
298 diagMBean);
299 }
300 });
301 }
302
303 initMBeanList.trimToSize();
304 return initMBeanList;
305 }
306
307 private static synchronized HotSpotDiagnosticMXBean getDiagnosticMXBean() {
308 if (hsDiagMBean == null) {
309 hsDiagMBean = new HotSpotDiagnostic();
310 }
311 return hsDiagMBean;
312 }
313
314 private static synchronized OperatingSystemMXBean getOperatingSystemMXBean() {
315 if (osMBean == null) {
316 osMBean = new OperatingSystemImpl(ManagementFactoryHelper.getVMManagement());
317 }
318 return osMBean;
319 }
320 }