| /* |
| * Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| |
| package com.sun.org.glassfish.external.statistics.impl; |
| import com.sun.org.glassfish.external.statistics.CountStatistic; |
| import java.util.Map; |
| import java.lang.reflect.*; |
| |
| /** |
| * @author Sreenivas Munnangi |
| */ |
| public final class CountStatisticImpl extends StatisticImpl |
| implements CountStatistic, InvocationHandler { |
| |
| private long count = 0L; |
| private final long initCount; |
| |
| private final CountStatistic cs = |
| (CountStatistic) Proxy.newProxyInstance( |
| CountStatistic.class.getClassLoader(), |
| new Class[] { CountStatistic.class }, |
| this); |
| |
| public CountStatisticImpl(long countVal, String name, String unit, |
| String desc, long sampleTime, long startTime) { |
| super(name, unit, desc, startTime, sampleTime); |
| count = countVal; |
| initCount = countVal; |
| } |
| |
| public CountStatisticImpl(String name, String unit, String desc) { |
| this(0L, name, unit, desc, -1L, System.currentTimeMillis()); |
| } |
| |
| public synchronized CountStatistic getStatistic() { |
| return cs; |
| } |
| |
| public synchronized Map getStaticAsMap() { |
| Map m = super.getStaticAsMap(); |
| m.put("count", getCount()); |
| return m; |
| } |
| |
| public synchronized String toString() { |
| return super.toString() + NEWLINE + "Count: " + getCount(); |
| } |
| |
| public synchronized long getCount() { |
| return count; |
| } |
| |
| public synchronized void setCount(long countVal) { |
| count = countVal; |
| sampleTime = System.currentTimeMillis(); |
| } |
| |
| public synchronized void increment() { |
| count++; |
| sampleTime = System.currentTimeMillis(); |
| } |
| |
| public synchronized void increment(long delta) { |
| count = count + delta; |
| sampleTime = System.currentTimeMillis(); |
| } |
| |
| public synchronized void decrement() { |
| count--; |
| sampleTime = System.currentTimeMillis(); |
| } |
| |
| @Override |
| public synchronized void reset() { |
| super.reset(); |
| count = initCount; |
| sampleTime = -1L; |
| } |
| |
| // todo: equals implementation |
| public Object invoke(Object proxy, Method m, Object[] args) throws Throwable { |
| checkMethod(m); |
| |
| Object result; |
| try { |
| result = m.invoke(this, args); |
| } catch (InvocationTargetException e) { |
| throw e.getTargetException(); |
| } catch (Exception e) { |
| throw new RuntimeException("unexpected invocation exception: " + |
| e.getMessage()); |
| } |
| return result; |
| } |
| } |