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Diffstat (limited to 'openjdk/java/lang/management/PlatformComponent.java')
| -rw-r--r-- | openjdk/java/lang/management/PlatformComponent.java | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/openjdk/java/lang/management/PlatformComponent.java b/openjdk/java/lang/management/PlatformComponent.java deleted file mode 100644 index 3d29a16b..00000000 --- a/openjdk/java/lang/management/PlatformComponent.java +++ /dev/null @@ -1,407 +0,0 @@ -/* - * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package java.lang.management; - -import java.util.ArrayList; -import java.util.Collections; -import java.util.List; -import java.util.HashSet; -import java.util.HashMap; -import java.util.Map; -import java.util.Set; -import javax.management.MBeanServerConnection; -import javax.management.ObjectName; - -import sun.management.ManagementFactoryHelper; -import sun.management.Util; - -/** - * This enum class defines the list of platform components - * that provides monitoring and management support. - * Each enum represents one MXBean interface. A MXBean - * instance could implement one or more MXBean interfaces. - * - * For example, com.sun.management.GarbageCollectorMXBean - * extends java.lang.management.GarbageCollectorMXBean - * and there is one set of garbage collection MXBean instances, - * each of which implements both c.s.m. and j.l.m. interfaces. - * There are two separate enums GARBAGE_COLLECTOR - * and SUN_GARBAGE_COLLECTOR so that ManagementFactory.getPlatformMXBeans(Class) - * will return the list of MXBeans of the specified type. - * - * To add a new MXBean interface for the Java platform, - * add a new enum constant and implement the MXBeanFetcher. - */ -enum PlatformComponent { - - /** - * Class loading system of the Java virtual machine. - */ - CLASS_LOADING( - "java.lang.management.ClassLoadingMXBean", - "java.lang", "ClassLoading", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<ClassLoadingMXBean>() { - public List<ClassLoadingMXBean> getMXBeans() { - return Collections.singletonList(ManagementFactoryHelper.getClassLoadingMXBean()); - } - }), - - /** - * Compilation system of the Java virtual machine. - */ - COMPILATION( - "java.lang.management.CompilationMXBean", - "java.lang", "Compilation", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<CompilationMXBean>() { - public List<CompilationMXBean> getMXBeans() { - CompilationMXBean m = ManagementFactoryHelper.getCompilationMXBean(); - if (m == null) { - return Collections.emptyList(); - } else { - return Collections.singletonList(m); - } - } - }), - - /** - * Memory system of the Java virtual machine. - */ - MEMORY( - "java.lang.management.MemoryMXBean", - "java.lang", "Memory", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<MemoryMXBean>() { - public List<MemoryMXBean> getMXBeans() { - return Collections.singletonList(ManagementFactoryHelper.getMemoryMXBean()); - } - }), - - /** - * Garbage Collector in the Java virtual machine. - */ - GARBAGE_COLLECTOR( - "java.lang.management.GarbageCollectorMXBean", - "java.lang", "GarbageCollector", keyProperties("name"), - false, // zero or more instances - new MXBeanFetcher<GarbageCollectorMXBean>() { - public List<GarbageCollectorMXBean> getMXBeans() { - return ManagementFactoryHelper. - getGarbageCollectorMXBeans(); - } - }), - - /** - * Memory manager in the Java virtual machine. - */ - MEMORY_MANAGER( - "java.lang.management.MemoryManagerMXBean", - "java.lang", "MemoryManager", keyProperties("name"), - false, // zero or more instances - new MXBeanFetcher<MemoryManagerMXBean>() { - public List<MemoryManagerMXBean> getMXBeans() { - return ManagementFactoryHelper.getMemoryManagerMXBeans(); - } - }, - GARBAGE_COLLECTOR), - - /** - * Memory pool in the Java virtual machine. - */ - MEMORY_POOL( - "java.lang.management.MemoryPoolMXBean", - "java.lang", "MemoryPool", keyProperties("name"), - false, // zero or more instances - new MXBeanFetcher<MemoryPoolMXBean>() { - public List<MemoryPoolMXBean> getMXBeans() { - return ManagementFactoryHelper.getMemoryPoolMXBeans(); - } - }), - - /** - * Operating system on which the Java virtual machine is running - */ - OPERATING_SYSTEM( - "java.lang.management.OperatingSystemMXBean", - "java.lang", "OperatingSystem", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<OperatingSystemMXBean>() { - public List<OperatingSystemMXBean> getMXBeans() { - return Collections.singletonList(ManagementFactoryHelper.getOperatingSystemMXBean()); - } - }), - - /** - * Runtime system of the Java virtual machine. - */ - RUNTIME( - "java.lang.management.RuntimeMXBean", - "java.lang", "Runtime", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<RuntimeMXBean>() { - public List<RuntimeMXBean> getMXBeans() { - return Collections.singletonList(ManagementFactoryHelper.getRuntimeMXBean()); - } - }), - - /** - * Threading system of the Java virtual machine. - */ - THREADING( - "java.lang.management.ThreadMXBean", - "java.lang", "Threading", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<ThreadMXBean>() { - public List<ThreadMXBean> getMXBeans() { - return Collections.singletonList(ManagementFactoryHelper.getThreadMXBean()); - } - }), - - - /** - * Logging facility. - */ - LOGGING( - "java.lang.management.PlatformLoggingMXBean", - "java.util.logging", "Logging", defaultKeyProperties(), - true, // singleton - new MXBeanFetcher<PlatformLoggingMXBean>() { - public List<PlatformLoggingMXBean> getMXBeans() { - PlatformLoggingMXBean m = ManagementFactoryHelper.getPlatformLoggingMXBean(); - if (m == null) { - return Collections.emptyList(); - } else { - return Collections.singletonList(m); - } - } - }), - - /** - * Buffer pools. - */ - BUFFER_POOL( - "java.lang.management.BufferPoolMXBean", - "java.nio", "BufferPool", keyProperties("name"), - false, // zero or more instances - new MXBeanFetcher<BufferPoolMXBean>() { - public List<BufferPoolMXBean> getMXBeans() { - return ManagementFactoryHelper.getBufferPoolMXBeans(); - } - }); - - /** - * A task that returns the MXBeans for a component. - */ - interface MXBeanFetcher<T extends PlatformManagedObject> { - public List<T> getMXBeans(); - } - - /* - * Returns a list of the GC MXBeans of the given type. - */ - private static <T extends GarbageCollectorMXBean> - List<T> getGcMXBeanList(Class<T> gcMXBeanIntf) { - List<GarbageCollectorMXBean> list = - ManagementFactoryHelper.getGarbageCollectorMXBeans(); - List<T> result = new ArrayList<>(list.size()); - for (GarbageCollectorMXBean m : list) { - if (gcMXBeanIntf.isInstance(m)) { - result.add(gcMXBeanIntf.cast(m)); - } - } - return result; - } - - /* - * Returns the OS mxbean instance of the given type. - */ - private static <T extends OperatingSystemMXBean> - List<T> getOSMXBeanList(Class<T> osMXBeanIntf) { - OperatingSystemMXBean m = - ManagementFactoryHelper.getOperatingSystemMXBean(); - if (osMXBeanIntf.isInstance(m)) { - return Collections.singletonList(osMXBeanIntf.cast(m)); - } else { - return Collections.emptyList(); - } - } - - private final String mxbeanInterfaceName; - private final String domain; - private final String type; - private final Set<String> keyProperties; - private final MXBeanFetcher fetcher; - private final PlatformComponent[] subComponents; - private final boolean singleton; - - private PlatformComponent(String intfName, - String domain, String type, - Set<String> keyProperties, - boolean singleton, - MXBeanFetcher fetcher, - PlatformComponent... subComponents) { - this.mxbeanInterfaceName = intfName; - this.domain = domain; - this.type = type; - this.keyProperties = keyProperties; - this.singleton = singleton; - this.fetcher = fetcher; - this.subComponents = subComponents; - } - - private static Set<String> defaultKeyProps; - private static Set<String> defaultKeyProperties() { - if (defaultKeyProps == null) { - defaultKeyProps = Collections.singleton("type"); - } - return defaultKeyProps; - } - - private static Set<String> keyProperties(String... keyNames) { - Set<String> set = new HashSet<>(); - set.add("type"); - for (String s : keyNames) { - set.add(s); - } - return set; - } - - boolean isSingleton() { - return singleton; - } - - String getMXBeanInterfaceName() { - return mxbeanInterfaceName; - } - - @SuppressWarnings("unchecked") - Class<? extends PlatformManagedObject> getMXBeanInterface() { - try { - // Lazy loading the MXBean interface only when it is needed - return (Class<? extends PlatformManagedObject>) - Class.forName(mxbeanInterfaceName, false, null); - } catch (ClassNotFoundException x) { - throw new AssertionError(x); - } - } - - @SuppressWarnings("unchecked") - <T extends PlatformManagedObject> - List<T> getMXBeans(Class<T> mxbeanInterface) - { - return fetcher.getMXBeans(); - } - - <T extends PlatformManagedObject> T getSingletonMXBean(Class<T> mxbeanInterface) - { - if (!singleton) - throw new IllegalArgumentException(mxbeanInterfaceName + - " can have zero or more than one instances"); - - List<T> list = fetcher.getMXBeans(); - assert list.size() == 1; - return list.isEmpty() ? null : list.get(0); - } - - <T extends PlatformManagedObject> - T getSingletonMXBean(MBeanServerConnection mbs, Class<T> mxbeanInterface) - throws java.io.IOException - { - if (!singleton) - throw new IllegalArgumentException(mxbeanInterfaceName + - " can have zero or more than one instances"); - - // ObjectName of a singleton MXBean contains only domain and type - assert keyProperties.size() == 1; - String on = domain + ":type=" + type; - return ManagementFactory.newPlatformMXBeanProxy(mbs, - on, - mxbeanInterface); - } - - <T extends PlatformManagedObject> - List<T> getMXBeans(MBeanServerConnection mbs, Class<T> mxbeanInterface) - throws java.io.IOException - { - List<T> result = new ArrayList<>(); - for (ObjectName on : getObjectNames(mbs)) { - result.add(ManagementFactory. - newPlatformMXBeanProxy(mbs, - on.getCanonicalName(), - mxbeanInterface) - ); - } - return result; - } - - private Set<ObjectName> getObjectNames(MBeanServerConnection mbs) - throws java.io.IOException - { - String domainAndType = domain + ":type=" + type; - if (keyProperties.size() > 1) { - // if there are more than 1 key properties (i.e. other than "type") - domainAndType += ",*"; - } - ObjectName on = Util.newObjectName(domainAndType); - Set<ObjectName> set = mbs.queryNames(on, null); - for (PlatformComponent pc : subComponents) { - set.addAll(pc.getObjectNames(mbs)); - } - return set; - } - - // a map from MXBean interface name to PlatformComponent - private static Map<String, PlatformComponent> enumMap; - private static synchronized void ensureInitialized() { - if (enumMap == null) { - enumMap = new HashMap<>(); - for (PlatformComponent pc: PlatformComponent.values()) { - // Use String as the key rather than Class<?> to avoid - // causing unnecessary class loading of management interface - enumMap.put(pc.getMXBeanInterfaceName(), pc); - } - } - } - - static boolean isPlatformMXBean(String cn) { - ensureInitialized(); - return enumMap.containsKey(cn); - } - - static <T extends PlatformManagedObject> - PlatformComponent getPlatformComponent(Class<T> mxbeanInterface) - { - ensureInitialized(); - String cn = mxbeanInterface.getName(); - PlatformComponent pc = enumMap.get(cn); - if (pc != null && pc.getMXBeanInterface() == mxbeanInterface) - return pc; - return null; - } - - private static final long serialVersionUID = 6992337162326171013L; -} |