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

Tue, 09 Apr 2013 14:51:13 +0100

author
alanb
date
Tue, 09 Apr 2013 14:51:13 +0100
changeset 368
0989ad8c0860
parent 286
f50545b5e2f1
child 397
b99d7e355d4b
permissions
-rw-r--r--

8010393: Update JAX-WS RI to 2.2.9-b12941
Reviewed-by: alanb, erikj
Contributed-by: miroslav.kos@oracle.com, martin.grebac@oracle.com

ohair@286 1 /*
alanb@368 2 * Copyright (c) 2009, 2010, 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
alanb@368 26
alanb@368 27
ohair@286 28 package com.sun.org.glassfish.external.statistics.impl;
ohair@286 29 import com.sun.org.glassfish.external.statistics.RangeStatistic;
ohair@286 30 import java.util.concurrent.atomic.AtomicLong;
ohair@286 31 import java.util.Map;
ohair@286 32 import java.lang.reflect.*;
ohair@286 33
ohair@286 34 /**
ohair@286 35 * @author Sreenivas Munnangi
ohair@286 36 */
ohair@286 37 public final class RangeStatisticImpl extends StatisticImpl
ohair@286 38 implements RangeStatistic, InvocationHandler {
ohair@286 39
ohair@286 40 private long currentVal = 0L;
ohair@286 41 private long highWaterMark = Long.MIN_VALUE;
ohair@286 42 private long lowWaterMark = Long.MAX_VALUE;
ohair@286 43 private final long initCurrentVal;
ohair@286 44 private final long initHighWaterMark;
ohair@286 45 private final long initLowWaterMark;
ohair@286 46
ohair@286 47 private final RangeStatistic rs =
ohair@286 48 (RangeStatistic) Proxy.newProxyInstance(
ohair@286 49 RangeStatistic.class.getClassLoader(),
ohair@286 50 new Class[] { RangeStatistic.class },
ohair@286 51 this);
ohair@286 52
ohair@286 53 public RangeStatisticImpl(long curVal, long highMark, long lowMark,
ohair@286 54 String name, String unit, String desc,
ohair@286 55 long startTime, long sampleTime) {
ohair@286 56 super(name, unit, desc, startTime, sampleTime);
ohair@286 57 currentVal = curVal;
ohair@286 58 initCurrentVal = curVal;
ohair@286 59 highWaterMark = highMark;
ohair@286 60 initHighWaterMark = highMark;
ohair@286 61 lowWaterMark = lowMark;
ohair@286 62 initLowWaterMark = lowMark;
ohair@286 63 }
ohair@286 64
ohair@286 65 public synchronized RangeStatistic getStatistic() {
ohair@286 66 return rs;
ohair@286 67 }
ohair@286 68
ohair@286 69 public synchronized Map getStaticAsMap() {
ohair@286 70 Map m = super.getStaticAsMap();
ohair@286 71 m.put("current", getCurrent());
ohair@286 72 m.put("lowwatermark", getLowWaterMark());
ohair@286 73 m.put("highwatermark", getHighWaterMark());
ohair@286 74 return m;
ohair@286 75 }
ohair@286 76
ohair@286 77 public synchronized long getCurrent() {
ohair@286 78 return currentVal;
ohair@286 79 }
ohair@286 80
ohair@286 81 public synchronized void setCurrent(long curVal) {
ohair@286 82 currentVal = curVal;
ohair@286 83 lowWaterMark = (curVal >= lowWaterMark ? lowWaterMark : curVal);
ohair@286 84 highWaterMark = (curVal >= highWaterMark ? curVal : highWaterMark);
ohair@286 85 sampleTime = System.currentTimeMillis();
ohair@286 86 }
ohair@286 87
ohair@286 88 /**
ohair@286 89 * Returns the highest value of this statistic, since measurement started.
ohair@286 90 */
ohair@286 91 public synchronized long getHighWaterMark() {
ohair@286 92 return highWaterMark;
ohair@286 93 }
ohair@286 94
ohair@286 95 public synchronized void setHighWaterMark(long hwm) {
ohair@286 96 highWaterMark = hwm;
ohair@286 97 }
ohair@286 98
ohair@286 99 /**
ohair@286 100 * Returns the lowest value of this statistic, since measurement started.
ohair@286 101 */
ohair@286 102 public synchronized long getLowWaterMark() {
ohair@286 103 return lowWaterMark;
ohair@286 104 }
ohair@286 105
ohair@286 106 public synchronized void setLowWaterMark(long lwm) {
ohair@286 107 lowWaterMark = lwm;
ohair@286 108 }
ohair@286 109
ohair@286 110 @Override
ohair@286 111 public synchronized void reset() {
ohair@286 112 super.reset();
ohair@286 113 currentVal = initCurrentVal;
ohair@286 114 highWaterMark = initHighWaterMark;
ohair@286 115 lowWaterMark = initLowWaterMark;
ohair@286 116 sampleTime = -1L;
ohair@286 117 }
ohair@286 118
ohair@286 119 public synchronized String toString() {
ohair@286 120 return super.toString() + NEWLINE +
ohair@286 121 "Current: " + getCurrent() + NEWLINE +
ohair@286 122 "LowWaterMark: " + getLowWaterMark() + NEWLINE +
ohair@286 123 "HighWaterMark: " + getHighWaterMark();
ohair@286 124 }
ohair@286 125
ohair@286 126 // todo: equals implementation
ohair@286 127 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable {
ohair@286 128 Object result;
ohair@286 129 try {
ohair@286 130 result = m.invoke(this, args);
ohair@286 131 } catch (InvocationTargetException e) {
ohair@286 132 throw e.getTargetException();
ohair@286 133 } catch (Exception e) {
ohair@286 134 throw new RuntimeException("unexpected invocation exception: " +
ohair@286 135 e.getMessage());
ohair@286 136 } finally {
ohair@286 137 }
ohair@286 138 return result;
ohair@286 139 }
ohair@286 140 }

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