1/*
2 * Copyright (c) 2003, 2013, 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
26package sun.management;
27
28import java.util.List;
29import sun.management.counter.Counter;
30/**
31 * An interface for the monitoring and management of the
32 * Java virtual machine.
33 */
34public interface VMManagement {
35
36    // Optional supports
37    public boolean isCompilationTimeMonitoringSupported();
38    public boolean isThreadContentionMonitoringSupported();
39    public boolean isThreadContentionMonitoringEnabled();
40    public boolean isCurrentThreadCpuTimeSupported();
41    public boolean isOtherThreadCpuTimeSupported();
42    public boolean isThreadCpuTimeEnabled();
43    public boolean isBootClassPathSupported();
44    public boolean isObjectMonitorUsageSupported();
45    public boolean isSynchronizerUsageSupported();
46    public boolean isThreadAllocatedMemorySupported();
47    public boolean isThreadAllocatedMemoryEnabled();
48    public boolean isGcNotificationSupported();
49    public boolean isRemoteDiagnosticCommandsSupported();
50
51    // Class Loading Subsystem
52    public long    getTotalClassCount();
53    public int     getLoadedClassCount();
54    public long    getUnloadedClassCount();
55    public boolean getVerboseClass();
56
57    // Memory Subsystem
58    public boolean getVerboseGC();
59
60    // Runtime Subsystem
61    public String  getManagementVersion();
62    public String  getVmId();
63    public String  getVmName();
64    public String  getVmVendor();
65    public String  getVmVersion();
66    public String  getVmSpecName();
67    public String  getVmSpecVendor();
68    public String  getVmSpecVersion();
69    public String  getClassPath();
70    public String  getLibraryPath();
71    public String  getBootClassPath();
72    public List<String> getVmArguments();
73    public long    getStartupTime();
74    public long    getUptime();
75    public int     getAvailableProcessors();
76
77    // Compilation Subsystem
78    public String  getCompilerName();
79    public long    getTotalCompileTime();
80
81    // Thread Subsystem
82    public long    getTotalThreadCount();
83    public int     getLiveThreadCount();
84    public int     getPeakThreadCount();
85    public int     getDaemonThreadCount();
86
87    // Operating System
88    public String  getOsName();
89    public String  getOsArch();
90    public String  getOsVersion();
91
92    // Hotspot-specific Runtime support
93    public long    getSafepointCount();
94    public long    getTotalSafepointTime();
95    public long    getSafepointSyncTime();
96    public long    getTotalApplicationNonStoppedTime();
97
98    public long    getLoadedClassSize();
99    public long    getUnloadedClassSize();
100    public long    getClassLoadingTime();
101    public long    getMethodDataSize();
102    public long    getInitializedClassCount();
103    public long    getClassInitializationTime();
104    public long    getClassVerificationTime();
105
106    // Performance counter support
107    public List<Counter>   getInternalCounters(String pattern);
108}
109