| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.openjpa.datacache; |
| |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.Set; |
| |
| import org.apache.openjpa.util.OpenJPAId; |
| |
| /** |
| * The default CacheStatistics(SPI) implementation. |
| */ |
| public class CacheStatisticsImpl implements CacheStatisticsSPI { |
| private static final long serialVersionUID = 9014495759588003166L; |
| private static final int ARRAY_SIZE = 3; |
| private long[] totalStat = new long[ARRAY_SIZE]; |
| private long[] stat = new long[ARRAY_SIZE]; |
| private Map<String, long[]> stats = new HashMap<>(); |
| private Map<String, long[]> totalStats = new HashMap<>(); |
| |
| private Date start = new Date(); |
| private Date since = new Date(); |
| private boolean enabled = false; |
| |
| private static final int READ = 0; |
| private static final int HIT = 1; |
| private static final int WRITE = 2; |
| |
| @Override |
| public long getReadCount() { |
| return stat[READ]; |
| } |
| |
| @Override |
| public long getHitCount() { |
| return stat[HIT]; |
| } |
| |
| @Override |
| public long getWriteCount() { |
| return stat[WRITE]; |
| } |
| |
| @Override |
| public long getTotalReadCount() { |
| return totalStat[READ]; |
| } |
| |
| @Override |
| public long getTotalHitCount() { |
| return totalStat[HIT]; |
| } |
| |
| @Override |
| public long getTotalWriteCount() { |
| return totalStat[WRITE]; |
| } |
| |
| @Override |
| public long getReadCount(Class<?> c) { |
| return getReadCount(c.getName()); |
| } |
| |
| @Override |
| public long getReadCount(String str){ |
| return getCount(stats, str, READ); |
| } |
| |
| @Override |
| public long getHitCount(Class<?> c) { |
| return getHitCount(c.getName()); |
| } |
| |
| @Override |
| public long getHitCount(String str) { |
| return getCount(stats, str, HIT); |
| } |
| |
| @Override |
| public long getWriteCount(Class<?> c) { |
| return getWriteCount(c.getName()); |
| } |
| @Override |
| public long getWriteCount(String str) { |
| return getCount(stats, str, WRITE); |
| } |
| |
| @Override |
| public long getTotalReadCount(Class<?> c) { |
| return getTotalReadCount(c.getName()); |
| } |
| |
| @Override |
| public long getTotalReadCount(String str) { |
| return getCount(totalStats, str, READ); |
| } |
| |
| @Override |
| public long getTotalHitCount(Class<?> c) { |
| return getTotalHitCount(c.getName()); |
| } |
| |
| @Override |
| public long getTotalHitCount(String str) { |
| return getCount(totalStats, str, HIT); |
| } |
| |
| @Override |
| public long getTotalWriteCount(Class<?> c) { |
| return getCount(totalStats, c.getName(), WRITE); |
| } |
| |
| @Override |
| public long getTotalWriteCount(String str) { |
| return getCount(totalStats, str, WRITE); |
| } |
| |
| @Override |
| public Date since() { |
| return since; |
| } |
| |
| @Override |
| public Date start() { |
| return start; |
| } |
| |
| @Override |
| public void reset() { |
| stat = new long[ARRAY_SIZE]; |
| stats.clear(); |
| since = new Date(); |
| } |
| |
| @Override |
| public boolean isEnabled() { |
| return enabled; |
| } |
| |
| @Override |
| public Set<String> classNames() { |
| return totalStats.keySet(); |
| } |
| |
| @Override |
| public Map<String, long[]> toMap() { |
| Map<String, long[]> res = new HashMap<>(); |
| for(Entry<String, long[]> s : stats.entrySet()){ |
| res.put(s.getKey(), s.getValue()); |
| } |
| return res; |
| } |
| |
| /** |
| * SPI implementation |
| */ |
| @Override |
| public void enable() { |
| enabled = true; |
| } |
| |
| @Override |
| public void disable() { |
| enabled = false; |
| } |
| |
| @Override |
| public void newGet(Class<?> cls, boolean hit) { |
| if (!enabled) { |
| return; |
| } |
| cls = (cls == null) ? Object.class : cls; |
| String clsName = cls.getName(); |
| addSample(clsName, READ); |
| if (hit) { |
| addSample(clsName, HIT); |
| } |
| } |
| |
| public void newGet(Object oid, boolean hit) { |
| if (!enabled) { |
| return; |
| } |
| if (oid instanceof OpenJPAId) { |
| newGet(((OpenJPAId) oid).getType(), hit); |
| } |
| } |
| |
| @Override |
| public void newPut(Class<?> cls) { |
| if (!enabled) { |
| return; |
| } |
| cls = (cls == null) ? Object.class : cls; |
| addSample(cls.getName(), WRITE); |
| } |
| |
| public void newPut(Object oid) { |
| if (!enabled) { |
| return; |
| } |
| if (oid instanceof OpenJPAId) { |
| newPut(((OpenJPAId) oid).getType()); |
| } |
| } |
| |
| /** |
| * Private worker methods. |
| */ |
| private void addSample(String c, int index) { |
| stat[index]++; |
| totalStat[index]++; |
| addSample(stats, c, index); |
| addSample(totalStats, c, index); |
| } |
| |
| private void addSample(Map<String, long[]> target, String c, int index) { |
| long[] row = target.get(c); |
| if (row == null) { |
| row = new long[ARRAY_SIZE]; |
| } |
| row[index]++; |
| target.put(c, row); |
| } |
| |
| private long getCount(Map<String, long[]> target, String c, int index) { |
| long[] row = target.get(c); |
| return (row == null) ? 0 : row[index]; |
| } |
| } |