aoqi@0: /*
aoqi@0:  * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: 
aoqi@0: 
aoqi@0: package com.sun.org.glassfish.external.statistics.impl;
aoqi@0: 
aoqi@0: import com.sun.org.glassfish.external.statistics.TimeStatistic;
aoqi@0: import java.util.Map;
aoqi@0: import java.lang.reflect.*;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @author Sreenivas Munnangi
aoqi@0:  */
aoqi@0: public final class TimeStatisticImpl extends StatisticImpl
aoqi@0:     implements TimeStatistic, InvocationHandler {
aoqi@0: 
aoqi@0:     private long count = 0L;
aoqi@0:     private long maxTime = 0L;
aoqi@0:     private long minTime = 0L;
aoqi@0:     private long totTime = 0L;
aoqi@0:     private final long initCount;
aoqi@0:     private final long initMaxTime;
aoqi@0:     private final long initMinTime;
aoqi@0:     private final long initTotTime;
aoqi@0: 
aoqi@0:     private final TimeStatistic ts =
aoqi@0:             (TimeStatistic) Proxy.newProxyInstance(
aoqi@0:             TimeStatistic.class.getClassLoader(),
aoqi@0:             new Class[] { TimeStatistic.class },
aoqi@0:             this);
aoqi@0: 
aoqi@0:     public synchronized final String toString() {
aoqi@0:         return super.toString() + NEWLINE +
aoqi@0:             "Count: " + getCount() + NEWLINE +
aoqi@0:             "MinTime: " + getMinTime() + NEWLINE +
aoqi@0:             "MaxTime: " + getMaxTime() + NEWLINE +
aoqi@0:             "TotalTime: " + getTotalTime();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public TimeStatisticImpl(long counter, long maximumTime, long minimumTime,
aoqi@0:                              long totalTime, String name, String unit,
aoqi@0:                              String desc, long startTime, long sampleTime) {
aoqi@0:         super(name, unit, desc, startTime, sampleTime);
aoqi@0:         count = counter;
aoqi@0:         initCount = counter;
aoqi@0:         maxTime = maximumTime;
aoqi@0:         initMaxTime = maximumTime;
aoqi@0:         minTime = minimumTime;
aoqi@0:         initMinTime = minimumTime;
aoqi@0:         totTime = totalTime;
aoqi@0:         initTotTime = totalTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized TimeStatistic getStatistic() {
aoqi@0:         return ts;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized Map getStaticAsMap() {
aoqi@0:         Map m = super.getStaticAsMap();
aoqi@0:         m.put("count", getCount());
aoqi@0:         m.put("maxtime", getMaxTime());
aoqi@0:         m.put("mintime", getMinTime());
aoqi@0:         m.put("totaltime", getTotalTime());
aoqi@0:         return m;
aoqi@0:     }
aoqi@0: 
aoqi@0:      public synchronized void incrementCount(long current) {
aoqi@0:         if (count == 0) {
aoqi@0:             totTime = current;
aoqi@0:             maxTime = current;
aoqi@0:             minTime = current;
aoqi@0:         } else {
aoqi@0:             totTime = totTime + current;
aoqi@0:             maxTime = (current >= maxTime ? current : maxTime);
aoqi@0:             minTime = (current >= minTime ? minTime : current);
aoqi@0:         }
aoqi@0:         count++;
aoqi@0:         sampleTime = System.currentTimeMillis();
aoqi@0:      }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Returns the number of times an operation was invoked
aoqi@0:      */
aoqi@0:     public synchronized long getCount() {
aoqi@0:         return count;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Returns the maximum amount of time that it took for one invocation of an
aoqi@0:      * operation, since measurement started.
aoqi@0:      */
aoqi@0:     public synchronized long getMaxTime() {
aoqi@0:         return maxTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Returns the minimum amount of time that it took for one invocation of an
aoqi@0:      * operation, since measurement started.
aoqi@0:      */
aoqi@0:     public synchronized long getMinTime() {
aoqi@0:         return minTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Returns the amount of time that it took for all invocations,
aoqi@0:      * since measurement started.
aoqi@0:      */
aoqi@0:     public synchronized long getTotalTime() {
aoqi@0:         return totTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     @Override
aoqi@0:     public synchronized void reset() {
aoqi@0:         super.reset();
aoqi@0:         count = initCount;
aoqi@0:         maxTime = initMaxTime;
aoqi@0:         minTime = initMinTime;
aoqi@0:         totTime = initTotTime;
aoqi@0:         sampleTime = -1L;
aoqi@0:     }
aoqi@0: 
aoqi@0:     // todo: equals implementation
aoqi@0:     public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
aoqi@0:         checkMethod(m);
aoqi@0: 
aoqi@0:         Object result;
aoqi@0:         try {
aoqi@0:             result = m.invoke(this, args);
aoqi@0:         } catch (InvocationTargetException e) {
aoqi@0:             throw e.getTargetException();
aoqi@0:         } catch (Exception e) {
aoqi@0:             throw new RuntimeException("unexpected invocation exception: " +
aoqi@0:                        e.getMessage());
aoqi@0:         }
aoqi@0:         return result;
aoqi@0:     }
aoqi@0: }