001/* 002 * (C) Copyright 2006-2009 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021package org.nuxeo.runtime.management.counters; 022 023import java.util.Map; 024import java.util.concurrent.ConcurrentHashMap; 025 026import org.javasimon.CallbackSkeleton; 027import org.javasimon.Counter; 028 029/** 030 * Listen to Simon events to store past values of the counters History is kept in memory using 031 * {@link CounterHistoryStack} 032 * 033 * @author Tiry (tdelprat@nuxeo.com) 034 * @deprecated since 11.4: use dropwizard metrics instead 035 */ 036@Deprecated(since = "11.4") 037public class CounterHistoryRecorder extends CallbackSkeleton { 038 039 protected Map<String, CounterHistoryStack> counterHistory = new ConcurrentHashMap<>(); 040 041 protected int historyLength = 100; 042 043 public CounterHistoryRecorder(int size) { 044 historyLength = size; 045 } 046 047 protected CounterHistoryStack getCounterHistoryStack(Counter counter) { 048 CounterHistoryStack stack = counterHistory.get(counter.getName()); 049 if (stack == null) { 050 stack = new CounterHistoryStack(historyLength); 051 counterHistory.put(counter.getName(), stack); 052 } 053 return stack; 054 } 055 056 protected void storeCounter(Counter counter) { 057 getCounterHistoryStack(counter).push(new long[] { System.currentTimeMillis(), counter.getCounter() }); 058 } 059 060 @Override 061 public void counterDecrease(Counter counter, long dec) { 062 storeCounter(counter); 063 } 064 065 @Override 066 public void counterSet(Counter counter, long val) { 067 storeCounter(counter); 068 } 069 070 @Override 071 public void counterIncrease(Counter counter, long inc) { 072 storeCounter(counter); 073 } 074 075 public CounterHistoryStack getCounterHistory(String counterName) { 076 return counterHistory.get(counterName); 077 } 078}