1 /* 2 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 27 28 package com.sun.org.glassfish.external.statistics.impl; 29 import com.sun.org.glassfish.external.statistics.BoundaryStatistic; 30 import java.util.concurrent.atomic.AtomicLong; 31 import java.util.Map; 32 import java.lang.reflect.*; 33 34 /** 35 * @author Sreenivas Munnangi 36 */ 37 public final class BoundaryStatisticImpl extends StatisticImpl 38 implements BoundaryStatistic, InvocationHandler { 39 40 private final long lowerBound; 41 private final long upperBound; 42 43 private final BoundaryStatistic bs = 44 (BoundaryStatistic) Proxy.newProxyInstance( 45 BoundaryStatistic.class.getClassLoader(), 46 new Class[] { BoundaryStatistic.class }, 47 this); 48 49 public BoundaryStatisticImpl(long lower, long upper, String name, 50 String unit, String desc, long startTime, 51 long sampleTime) { 52 super(name, unit, desc, startTime, sampleTime); 53 upperBound = upper; 54 lowerBound = lower; 55 } 56 57 public synchronized BoundaryStatistic getStatistic() { 58 return bs; 59 } 60 61 public synchronized Map getStaticAsMap() { 62 Map m = super.getStaticAsMap(); 63 m.put("lowerbound", getLowerBound()); 64 m.put("upperbound", getUpperBound()); 65 return m; 66 } 67 68 public synchronized long getLowerBound() { 69 return lowerBound; 70 } 71 72 public synchronized long getUpperBound() { 73 return upperBound; 74 } 75 76 @Override 77 public synchronized void reset() { 78 super.reset(); 79 sampleTime = -1L; 80 } 81 82 // todo: equals implementation 83 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable { 84 Object result; 85 try { 86 result = m.invoke(this, args); 87 } catch (InvocationTargetException e) { 88 throw e.getTargetException(); 89 } catch (Exception e) { 90 throw new RuntimeException("unexpected invocation exception: " + 91 e.getMessage()); 92 } finally { 93 } 94 return result; 95 } 96 }