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Glassfish example source code file (JVMThreadInfoStats.java)

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

Java - Glassfish tags/keywords

countstatistic, countstatistic, jvmthreadinfostats, jvmthreadinfostats, stats, stats, stringstatistic, stringstatistic

The Glassfish JVMThreadInfoStats.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */

package com.sun.enterprise.admin.monitor.stats;
import org.glassfish.j2ee.statistics.Stats;
import org.glassfish.j2ee.statistics.CountStatistic;
import com.sun.enterprise.admin.monitor.stats.StringStatistic;

/**
 * A Stats interface, to expose the monitoring information 
 * about each individual thread in the the thread system of the JVM.
 * @since 8.1
 */
public interface JVMThreadInfoStats extends Stats {
    
    /**
     * Returns the Id of the thread
     * @return  CountStatistic  Id of the thread
     */
    public CountStatistic getThreadId();
    
    /**
     * Returns the name of the thread
     * @return  StringStatistic name of the thread
     */
    public StringStatistic getThreadName();
    
    /**
     * Returns the state of the thread
     * @return StringStatistic  Thread state
     */
    public StringStatistic getThreadState();
    
    /**
     * Returns the elapsed time (in milliseconds) that the thread associated 
     * with this ThreadInfo has blocked to enter or reenter a monitor since 
     * thread contention monitoring is enabled.
     * @return CountStatistic   time elapsed in milliseconds, since the thread
     *                          entered the BLOCKED state. Returns -1 if thread
     *                          contention monitoring is disabled
     */
     public CountStatistic getBlockedTime();
     
     /**
      * Returns the number of times that this thread has been in the blocked
      * state
      * @return CountStatistic  the total number of times that the thread 
      *                         entered the BLOCKED state
      */
     public CountStatistic getBlockedCount();
     
     /**
      * Returns the elapsed time(in milliseconds) that the thread has been in 
      * the waiting state.
      * @returns CountStatistic elapsed time in milliseconds that the thread has
      *                         been in a WAITING state. Returns -1 if thread
      *                         contention monitoring is disabled.
      */
     public CountStatistic getWaitedTime();
     
     /**
      * Returns the number of times that the thread has been in WAITING or 
      * TIMED_WAITING states
      * @return CountStatistic  total number of times that the thread was in
      *                         WAITING or TIMED_WAITING states
      */
     public CountStatistic getWaitedCount();
     
     /**
      * Returns the string representation of the monitor lock that the thread 
      * is blocked to enter or waiting to be notified through 
      * the Object.wait method
      * @return StringStatistic the string representation of the monitor lock
      */
     public StringStatistic getLockName();
     
     /**
      * Returns the Id of the thread which holds the monitor lock of an 
      * object on which this thread is blocking
      * @return CountStatistic Id of the thread holding the lock.
      */
     public CountStatistic getLockOwnerId();
     
     
     /**
      * Returns the name of the thread that holds the monitor lock of the 
      * object this thread is blocking on
      * @return StringStatistic name of the thread holding the monitor lock.
      */
     public StringStatistic getLockOwnerName();
     
     /**
      * Returns the stacktrace associated with this thread
      */
     public StringStatistic getStackTrace();
}

Other Glassfish examples (source code examples)

Here is a short list of links related to this Glassfish JVMThreadInfoStats.java source code file:

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