/*

 * Copyright (c) 2003, 2013, 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 sun.management;

import java.util.List;

import sun.management.counter.Counter;

/**

 * An interface for the monitoring and management of the

 * Java virtual machine.

 */

public interface VMManagement {

    // Optional supports

    public boolean isCompilationTimeMonitoringSupported();

    public boolean isThreadContentionMonitoringSupported();

    public boolean isThreadContentionMonitoringEnabled();

    public boolean isCurrentThreadCpuTimeSupported();

    public boolean isOtherThreadCpuTimeSupported();

    public boolean isThreadCpuTimeEnabled();

    public boolean isBootClassPathSupported();

    public boolean isObjectMonitorUsageSupported();

    public boolean isSynchronizerUsageSupported();

    public boolean isThreadAllocatedMemorySupported();

    public boolean isThreadAllocatedMemoryEnabled();

    public boolean isGcNotificationSupported();

    public boolean isRemoteDiagnosticCommandsSupported();

    // Class Loading Subsystem

    public long    getTotalClassCount();

    public int     getLoadedClassCount();

    public long    getUnloadedClassCount();

    public boolean getVerboseClass();

    // Memory Subsystem

    public boolean getVerboseGC();

    // Runtime Subsystem

    public String  getManagementVersion();

    public String  getVmId();

    public String  getVmName();

    public String  getVmVendor();

    public String  getVmVersion();

    public String  getVmSpecName();

    public String  getVmSpecVendor();

    public String  getVmSpecVersion();

    public String  getClassPath();

    public String  getLibraryPath();

    public String  getBootClassPath();

    public List<String> getVmArguments();

    public long    getStartupTime();

    public long    getUptime();

    public int     getAvailableProcessors();

    // Compilation Subsystem

    public String  getCompilerName();

    public long    getTotalCompileTime();

    // Thread Subsystem

    public long    getTotalThreadCount();

    public int     getLiveThreadCount();

    public int     getPeakThreadCount();

    public int     getDaemonThreadCount();

    // Operating System

    public String  getOsName();

    public String  getOsArch();

    public String  getOsVersion();

    // Hotspot-specific Runtime support

    public long    getSafepointCount();

    public long    getTotalSafepointTime();

    public long    getSafepointSyncTime();

    public long    getTotalApplicationNonStoppedTime();

    public long    getLoadedClassSize();

    public long    getUnloadedClassSize();

    public long    getClassLoadingTime();

    public long    getMethodDataSize();

    public long    getInitializedClassCount();

    public long    getClassInitializationTime();

    public long    getClassVerificationTime();

    // Performance counter support

    public List<Counter>   getInternalCounters(String pattern);

}