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

Tue, 06 Mar 2012 16:09:35 -0800

author
ohair
date
Tue, 06 Mar 2012 16:09:35 -0800
changeset 286
f50545b5e2f1
child 368
0989ad8c0860
permissions
-rw-r--r--

7150322: Stop using drop source bundles in jaxws
Reviewed-by: darcy, ohrstrom

ohair@286 1 /*
ohair@286 2 * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
ohair@286 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ohair@286 4 *
ohair@286 5 * This code is free software; you can redistribute it and/or modify it
ohair@286 6 * under the terms of the GNU General Public License version 2 only, as
ohair@286 7 * published by the Free Software Foundation. Oracle designates this
ohair@286 8 * particular file as subject to the "Classpath" exception as provided
ohair@286 9 * by Oracle in the LICENSE file that accompanied this code.
ohair@286 10 *
ohair@286 11 * This code is distributed in the hope that it will be useful, but WITHOUT
ohair@286 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ohair@286 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ohair@286 14 * version 2 for more details (a copy is included in the LICENSE file that
ohair@286 15 * accompanied this code).
ohair@286 16 *
ohair@286 17 * You should have received a copy of the GNU General Public License version
ohair@286 18 * 2 along with this work; if not, write to the Free Software Foundation,
ohair@286 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ohair@286 20 *
ohair@286 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@286 22 * or visit www.oracle.com if you need additional information or have any
ohair@286 23 * questions.
ohair@286 24 */
ohair@286 25
ohair@286 26 package com.sun.org.glassfish.external.statistics.impl;
ohair@286 27 import com.sun.org.glassfish.external.statistics.RangeStatistic;
ohair@286 28 import java.util.concurrent.atomic.AtomicLong;
ohair@286 29 import java.util.Map;
ohair@286 30 import java.lang.reflect.*;
ohair@286 31
ohair@286 32 /**
ohair@286 33 * @author Sreenivas Munnangi
ohair@286 34 */
ohair@286 35 public final class RangeStatisticImpl extends StatisticImpl
ohair@286 36 implements RangeStatistic, InvocationHandler {
ohair@286 37
ohair@286 38 private long currentVal = 0L;
ohair@286 39 private long highWaterMark = Long.MIN_VALUE;
ohair@286 40 private long lowWaterMark = Long.MAX_VALUE;
ohair@286 41 private final long initCurrentVal;
ohair@286 42 private final long initHighWaterMark;
ohair@286 43 private final long initLowWaterMark;
ohair@286 44
ohair@286 45 private final RangeStatistic rs =
ohair@286 46 (RangeStatistic) Proxy.newProxyInstance(
ohair@286 47 RangeStatistic.class.getClassLoader(),
ohair@286 48 new Class[] { RangeStatistic.class },
ohair@286 49 this);
ohair@286 50
ohair@286 51 public RangeStatisticImpl(long curVal, long highMark, long lowMark,
ohair@286 52 String name, String unit, String desc,
ohair@286 53 long startTime, long sampleTime) {
ohair@286 54 super(name, unit, desc, startTime, sampleTime);
ohair@286 55 currentVal = curVal;
ohair@286 56 initCurrentVal = curVal;
ohair@286 57 highWaterMark = highMark;
ohair@286 58 initHighWaterMark = highMark;
ohair@286 59 lowWaterMark = lowMark;
ohair@286 60 initLowWaterMark = lowMark;
ohair@286 61 }
ohair@286 62
ohair@286 63 public synchronized RangeStatistic getStatistic() {
ohair@286 64 return rs;
ohair@286 65 }
ohair@286 66
ohair@286 67 public synchronized Map getStaticAsMap() {
ohair@286 68 Map m = super.getStaticAsMap();
ohair@286 69 m.put("current", getCurrent());
ohair@286 70 m.put("lowwatermark", getLowWaterMark());
ohair@286 71 m.put("highwatermark", getHighWaterMark());
ohair@286 72 return m;
ohair@286 73 }
ohair@286 74
ohair@286 75 public synchronized long getCurrent() {
ohair@286 76 return currentVal;
ohair@286 77 }
ohair@286 78
ohair@286 79 public synchronized void setCurrent(long curVal) {
ohair@286 80 currentVal = curVal;
ohair@286 81 lowWaterMark = (curVal >= lowWaterMark ? lowWaterMark : curVal);
ohair@286 82 highWaterMark = (curVal >= highWaterMark ? curVal : highWaterMark);
ohair@286 83 sampleTime = System.currentTimeMillis();
ohair@286 84 }
ohair@286 85
ohair@286 86 /**
ohair@286 87 * Returns the highest value of this statistic, since measurement started.
ohair@286 88 */
ohair@286 89 public synchronized long getHighWaterMark() {
ohair@286 90 return highWaterMark;
ohair@286 91 }
ohair@286 92
ohair@286 93 public synchronized void setHighWaterMark(long hwm) {
ohair@286 94 highWaterMark = hwm;
ohair@286 95 }
ohair@286 96
ohair@286 97 /**
ohair@286 98 * Returns the lowest value of this statistic, since measurement started.
ohair@286 99 */
ohair@286 100 public synchronized long getLowWaterMark() {
ohair@286 101 return lowWaterMark;
ohair@286 102 }
ohair@286 103
ohair@286 104 public synchronized void setLowWaterMark(long lwm) {
ohair@286 105 lowWaterMark = lwm;
ohair@286 106 }
ohair@286 107
ohair@286 108 @Override
ohair@286 109 public synchronized void reset() {
ohair@286 110 super.reset();
ohair@286 111 currentVal = initCurrentVal;
ohair@286 112 highWaterMark = initHighWaterMark;
ohair@286 113 lowWaterMark = initLowWaterMark;
ohair@286 114 sampleTime = -1L;
ohair@286 115 }
ohair@286 116
ohair@286 117 public synchronized String toString() {
ohair@286 118 return super.toString() + NEWLINE +
ohair@286 119 "Current: " + getCurrent() + NEWLINE +
ohair@286 120 "LowWaterMark: " + getLowWaterMark() + NEWLINE +
ohair@286 121 "HighWaterMark: " + getHighWaterMark();
ohair@286 122 }
ohair@286 123
ohair@286 124 // todo: equals implementation
ohair@286 125 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
ohair@286 126 Object result;
ohair@286 127 try {
ohair@286 128 result = m.invoke(this, args);
ohair@286 129 } catch (InvocationTargetException e) {
ohair@286 130 throw e.getTargetException();
ohair@286 131 } catch (Exception e) {
ohair@286 132 throw new RuntimeException("unexpected invocation exception: " +
ohair@286 133 e.getMessage());
ohair@286 134 } finally {
ohair@286 135 }
ohair@286 136 return result;
ohair@286 137 }
ohair@286 138 }

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