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src/share/jaxws_classes/com/sun/org/glassfish/external/statistics/impl/RangeStatisticImpl.java@9c07ef4934dd (annotated)

src/share/jaxws_classes/com/sun/org/glassfish/external/statistics/impl/RangeStatisticImpl.java

Thu, 31 Aug 2017 15:18:52 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:18:52 +0800

changeset 637

9c07ef4934dd

parent 397

b99d7e355d4b

parent 0

373ffda63c9a

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26
aoqi@0	27
aoqi@0	28	package com.sun.org.glassfish.external.statistics.impl;
aoqi@0	29	import com.sun.org.glassfish.external.statistics.RangeStatistic;
aoqi@0	30	import java.util.Map;
aoqi@0	31	import java.lang.reflect.*;
aoqi@0	32
aoqi@0	33	/**
aoqi@0	34	* @author Sreenivas Munnangi
aoqi@0	35	*/
aoqi@0	36	public final class RangeStatisticImpl extends StatisticImpl
aoqi@0	37	implements RangeStatistic, InvocationHandler {
aoqi@0	38
aoqi@0	39	private long currentVal = 0L;
aoqi@0	40	private long highWaterMark = Long.MIN_VALUE;
aoqi@0	41	private long lowWaterMark = Long.MAX_VALUE;
aoqi@0	42	private final long initCurrentVal;
aoqi@0	43	private final long initHighWaterMark;
aoqi@0	44	private final long initLowWaterMark;
aoqi@0	45
aoqi@0	46	private final RangeStatistic rs =
aoqi@0	47	(RangeStatistic) Proxy.newProxyInstance(
aoqi@0	48	RangeStatistic.class.getClassLoader(),
aoqi@0	49	new Class[] { RangeStatistic.class },
aoqi@0	50	this);
aoqi@0	51
aoqi@0	52	public RangeStatisticImpl(long curVal, long highMark, long lowMark,
aoqi@0	53	String name, String unit, String desc,
aoqi@0	54	long startTime, long sampleTime) {
aoqi@0	55	super(name, unit, desc, startTime, sampleTime);
aoqi@0	56	currentVal = curVal;
aoqi@0	57	initCurrentVal = curVal;
aoqi@0	58	highWaterMark = highMark;
aoqi@0	59	initHighWaterMark = highMark;
aoqi@0	60	lowWaterMark = lowMark;
aoqi@0	61	initLowWaterMark = lowMark;
aoqi@0	62	}
aoqi@0	63
aoqi@0	64	public synchronized RangeStatistic getStatistic() {
aoqi@0	65	return rs;
aoqi@0	66	}
aoqi@0	67
aoqi@0	68	public synchronized Map getStaticAsMap() {
aoqi@0	69	Map m = super.getStaticAsMap();
aoqi@0	70	m.put("current", getCurrent());
aoqi@0	71	m.put("lowwatermark", getLowWaterMark());
aoqi@0	72	m.put("highwatermark", getHighWaterMark());
aoqi@0	73	return m;
aoqi@0	74	}
aoqi@0	75
aoqi@0	76	public synchronized long getCurrent() {
aoqi@0	77	return currentVal;
aoqi@0	78	}
aoqi@0	79
aoqi@0	80	public synchronized void setCurrent(long curVal) {
aoqi@0	81	currentVal = curVal;
aoqi@0	82	lowWaterMark = (curVal >= lowWaterMark ? lowWaterMark : curVal);
aoqi@0	83	highWaterMark = (curVal >= highWaterMark ? curVal : highWaterMark);
aoqi@0	84	sampleTime = System.currentTimeMillis();
aoqi@0	85	}
aoqi@0	86
aoqi@0	87	/**
aoqi@0	88	* Returns the highest value of this statistic, since measurement started.
aoqi@0	89	*/
aoqi@0	90	public synchronized long getHighWaterMark() {
aoqi@0	91	return highWaterMark;
aoqi@0	92	}
aoqi@0	93
aoqi@0	94	public synchronized void setHighWaterMark(long hwm) {
aoqi@0	95	highWaterMark = hwm;
aoqi@0	96	}
aoqi@0	97
aoqi@0	98	/**
aoqi@0	99	* Returns the lowest value of this statistic, since measurement started.
aoqi@0	100	*/
aoqi@0	101	public synchronized long getLowWaterMark() {
aoqi@0	102	return lowWaterMark;
aoqi@0	103	}
aoqi@0	104
aoqi@0	105	public synchronized void setLowWaterMark(long lwm) {
aoqi@0	106	lowWaterMark = lwm;
aoqi@0	107	}
aoqi@0	108
aoqi@0	109	@Override
aoqi@0	110	public synchronized void reset() {
aoqi@0	111	super.reset();
aoqi@0	112	currentVal = initCurrentVal;
aoqi@0	113	highWaterMark = initHighWaterMark;
aoqi@0	114	lowWaterMark = initLowWaterMark;
aoqi@0	115	sampleTime = -1L;
aoqi@0	116	}
aoqi@0	117
aoqi@0	118	public synchronized String toString() {
aoqi@0	119	return super.toString() + NEWLINE +
aoqi@0	120	"Current: " + getCurrent() + NEWLINE +
aoqi@0	121	"LowWaterMark: " + getLowWaterMark() + NEWLINE +
aoqi@0	122	"HighWaterMark: " + getHighWaterMark();
aoqi@0	123	}
aoqi@0	124
aoqi@0	125	// todo: equals implementation
aoqi@0	126	public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
aoqi@0	127	checkMethod(m);
aoqi@0	128
aoqi@0	129	Object result;
aoqi@0	130	try {
aoqi@0	131	result = m.invoke(this, args);
aoqi@0	132	} catch (InvocationTargetException e) {
aoqi@0	133	throw e.getTargetException();
aoqi@0	134	} catch (Exception e) {
aoqi@0	135	throw new RuntimeException("unexpected invocation exception: " +
aoqi@0	136	e.getMessage());
aoqi@0	137	}
aoqi@0	138	return result;
aoqi@0	139	}
aoqi@0	140	}