| /* |
| * 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.geode.internal.size; |
| |
| import java.util.Map; |
| |
| import org.apache.geode.internal.util.concurrent.CopyOnWriteWeakHashMap; |
| |
| public class CachingSingleObjectSizer implements SingleObjectSizer { |
| private final Map<Class, Long> sizeCache = new CopyOnWriteWeakHashMap<Class, Long>(); |
| private final SingleObjectSizer wrappedSizer; |
| |
| public CachingSingleObjectSizer(SingleObjectSizer sizer) { |
| this.wrappedSizer = sizer; |
| } |
| |
| @Override |
| public long sizeof(Object object) { |
| Class clazz = object.getClass(); |
| if (clazz.isArray()) { |
| return wrappedSizer.sizeof(object); |
| } else { |
| Long size = sizeCache.get(clazz); |
| if (size != null) { |
| return size.longValue(); |
| } |
| size = Long.valueOf(wrappedSizer.sizeof(object)); |
| sizeCache.put(clazz, size); |
| return size.longValue(); |
| } |
| } |
| |
| } |