1 /* 2 * Copyright (c) 2009, 2013, 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.Map; 31 import java.lang.reflect.*; 32 33 /** 34 * @author Sreenivas Munnangi 35 */ 36 public final class BoundaryStatisticImpl extends StatisticImpl 37 implements BoundaryStatistic, InvocationHandler { 38 39 private final long lowerBound; 40 private final long upperBound; 41 42 private final BoundaryStatistic bs = 43 (BoundaryStatistic) Proxy.newProxyInstance( 44 BoundaryStatistic.class.getClassLoader(), 45 new Class[] { BoundaryStatistic.class }, 46 this); 47 48 public BoundaryStatisticImpl(long lower, long upper, String name, 49 String unit, String desc, long startTime, 50 long sampleTime) { 51 super(name, unit, desc, startTime, sampleTime); 52 upperBound = upper; 53 lowerBound = lower; 54 } 55 56 public synchronized BoundaryStatistic getStatistic() { 57 return bs; 58 } 59 60 public synchronized Map getStaticAsMap() { 61 Map m = super.getStaticAsMap(); 62 m.put("lowerbound", getLowerBound()); 63 m.put("upperbound", getUpperBound()); 64 return m; 65 } 66 67 public synchronized long getLowerBound() { 68 return lowerBound; 69 } 70 71 public synchronized long getUpperBound() { 72 return upperBound; 73 } 74 75 @Override 76 public synchronized void reset() { 77 super.reset(); 78 sampleTime = -1L; 79 } 80 81 // todo: equals implementation 82 public Object invoke(Object proxy, Method m, Object[] args) throws Throwable { 83 checkMethod(m); 84 85 Object result; 86 try { 87 result = m.invoke(this, args); 88 } catch (InvocationTargetException e) { 89 throw e.getTargetException(); 90 } catch (Exception e) { 91 throw new RuntimeException("unexpected invocation exception: " + 92 e.getMessage()); 93 } 94 return result; 95 } 96 }