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: package com.sun.org.glassfish.external.statistics.impl;
aoqi@0: import com.sun.org.glassfish.external.statistics.Statistic;
aoqi@0: import java.lang.reflect.Method;
aoqi@0: import java.lang.reflect.Modifier;
aoqi@0: import java.util.Map;
aoqi@0: import java.util.concurrent.ConcurrentHashMap;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * @author Sreenivas Munnangi
aoqi@0:  */
aoqi@0: public abstract class StatisticImpl implements Statistic {
aoqi@0: 
aoqi@0:     private final String statisticName;
aoqi@0:     private final String statisticUnit;
aoqi@0:     private final String statisticDesc;
aoqi@0:     protected long sampleTime = -1L;
aoqi@0:     private long startTime;
aoqi@0:     public static final String UNIT_COUNT = "count";
aoqi@0:     public static final String UNIT_SECOND = "second";
aoqi@0:     public static final String UNIT_MILLISECOND = "millisecond";
aoqi@0:     public static final String UNIT_MICROSECOND = "microsecond";
aoqi@0:     public static final String UNIT_NANOSECOND = "nanosecond";
aoqi@0:     public static final String START_TIME = "starttime";
aoqi@0:     public static final String LAST_SAMPLE_TIME = "lastsampletime";
aoqi@0: 
aoqi@0:     protected final Map<String, Object> statMap = new ConcurrentHashMap<String, Object> ();
aoqi@0: 
aoqi@0:     protected static final String NEWLINE = System.getProperty( "line.separator" );
aoqi@0: 
aoqi@0:     protected StatisticImpl(String name, String unit, String desc,
aoqi@0:                           long start_time, long sample_time) {
aoqi@0: 
aoqi@0:         if (isValidString(name)) {
aoqi@0:             statisticName = name;
aoqi@0:         } else {
aoqi@0:             statisticName = "name";
aoqi@0:         }
aoqi@0: 
aoqi@0:         if (isValidString(unit)) {
aoqi@0:             statisticUnit = unit;
aoqi@0:         } else {
aoqi@0:             statisticUnit = "unit";
aoqi@0:         }
aoqi@0: 
aoqi@0:         if (isValidString(desc)) {
aoqi@0:             statisticDesc = desc;
aoqi@0:         } else {
aoqi@0:             statisticDesc = "description";
aoqi@0:         }
aoqi@0: 
aoqi@0:         startTime = start_time;
aoqi@0:         sampleTime = sample_time;
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected StatisticImpl(String name, String unit, String desc) {
aoqi@0:         this(name, unit, desc, System.currentTimeMillis(), System.currentTimeMillis());
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized Map getStaticAsMap() {
aoqi@0:         if (isValidString(statisticName)) {
aoqi@0:             statMap.put("name", statisticName);
aoqi@0:         }
aoqi@0:         if (isValidString(statisticUnit)) {
aoqi@0:             statMap.put("unit", statisticUnit);
aoqi@0:         }
aoqi@0:         if (isValidString(statisticDesc)) {
aoqi@0:             statMap.put("description", statisticDesc);
aoqi@0:         }
aoqi@0:         statMap.put(StatisticImpl.START_TIME, startTime);
aoqi@0:         statMap.put(StatisticImpl.LAST_SAMPLE_TIME, sampleTime);
aoqi@0:         return statMap;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getName() {
aoqi@0:         return this.statisticName;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getDescription() {
aoqi@0:         return this.statisticDesc;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public String getUnit() {
aoqi@0:         return this.statisticUnit;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized long getLastSampleTime() {
aoqi@0:         return sampleTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized long getStartTime() {
aoqi@0:         return startTime;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized void reset() {
aoqi@0:         startTime = System.currentTimeMillis();
aoqi@0:     }
aoqi@0: 
aoqi@0:     public synchronized String toString() {
aoqi@0:         return "Statistic " + getClass().getName() + NEWLINE +
aoqi@0:             "Name: " + getName() + NEWLINE +
aoqi@0:             "Description: " + getDescription() + NEWLINE +
aoqi@0:             "Unit: " + getUnit() + NEWLINE +
aoqi@0:             "LastSampleTime: " + getLastSampleTime() + NEWLINE +
aoqi@0:             "StartTime: " + getStartTime();
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected static boolean isValidString(String str) {
aoqi@0:         return (str!=null && str.length()>0);
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void checkMethod(Method method) {
aoqi@0:         if (method == null || method.getDeclaringClass() == null
aoqi@0:                 || !Statistic.class.isAssignableFrom(method.getDeclaringClass())
aoqi@0:                 || Modifier.isStatic(method.getModifiers())) {
aoqi@0:             throw new RuntimeException("Invalid method on invoke");
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0: }