Java example source code file (HotspotRuntime.java)

This example Java source code file (HotspotRuntime.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

com_sun_property, com_sun_rt, hotspotruntime, hotspotruntimembean, java_property, java_rt, rt_counter_name_pattern, string, sun_property, sun_rt, util, vmmanagement

The HotspotRuntime.java Java example source code

/*
 * Copyright (c) 2003, 2005, 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 java.util.ArrayList;
import sun.management.counter.Counter;


/**
 * Implementation class of HotspotRuntimeMBean interface.
 *
 * Internal, uncommitted management interface for Hotspot runtime
 * system.
 */
class HotspotRuntime
    implements HotspotRuntimeMBean {

    private VMManagement jvm;

    /**
     * Constructor of HotspotRuntime class.
     */
    HotspotRuntime(VMManagement vm) {
        jvm = vm;
    }

    public long getSafepointCount() {
        return jvm.getSafepointCount();
    }

    public long getTotalSafepointTime() {
        return jvm.getTotalSafepointTime();
    }

    public long getSafepointSyncTime() {
        return jvm.getSafepointSyncTime();
    }

    // Performance counter support
    private static final String JAVA_RT          = "java.rt.";
    private static final String COM_SUN_RT       = "com.sun.rt.";
    private static final String SUN_RT           = "sun.rt.";
    private static final String JAVA_PROPERTY    = "java.property.";
    private static final String COM_SUN_PROPERTY = "com.sun.property.";
    private static final String SUN_PROPERTY     = "sun.property.";
    private static final String RT_COUNTER_NAME_PATTERN =
        JAVA_RT + "|" + COM_SUN_RT + "|" + SUN_RT + "|" +
        JAVA_PROPERTY + "|" + COM_SUN_PROPERTY + "|" + SUN_PROPERTY;

    public java.util.List<Counter> getInternalRuntimeCounters() {
        return jvm.getInternalCounters(RT_COUNTER_NAME_PATTERN);
    }
}