001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.geronimo.samples.daytrader.util; 018 019 020 /** 021 * @author stancox 022 * 023 * To change this generated comment edit the template variable "typecomment": 024 * Window>Preferences>Java>Templates. 025 * To enable and disable the creation of type comments go to 026 * Window>Preferences>Java>Code Generation. 027 */ 028 public class MDBStats extends java.util.HashMap { 029 030 031 //Singleton class 032 private static MDBStats mdbStats = null; 033 private MDBStats() 034 { 035 } 036 037 public static synchronized MDBStats getInstance() 038 { 039 if (mdbStats == null) 040 mdbStats = new MDBStats(); 041 return mdbStats; 042 } 043 044 public TimerStat addTiming(String type, long sendTime, long recvTime) 045 { 046 TimerStat stats = null; 047 synchronized (type) 048 { 049 050 stats = (TimerStat) get(type); 051 if (stats == null) stats = new TimerStat(); 052 053 long time = recvTime - sendTime; 054 if ( time > stats.getMax() ) stats.setMax(time); 055 if ( time < stats.getMin() ) stats.setMin(time); 056 stats.setCount(stats.getCount()+1); 057 stats.setTotalTime(stats.getTotalTime() + time); 058 059 put(type, stats); 060 } 061 return stats; 062 } 063 064 065 066 public synchronized void reset() 067 { 068 clear(); 069 } 070 071 072 073 }