| /* |
| * 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.jackrabbit.oak.plugins.document.persistentCache.async; |
| |
| import java.util.Map; |
| |
| import com.google.common.collect.Iterables; |
| |
| import org.apache.jackrabbit.oak.cache.CacheValue; |
| import org.apache.jackrabbit.oak.plugins.document.persistentCache.PersistentCache; |
| |
| /** |
| * An invalidate cache action. |
| * |
| * @param <K> key type |
| * @param <V> value type |
| */ |
| class InvalidateCacheAction<K extends CacheValue, V extends CacheValue> |
| implements CacheAction { |
| |
| private final PersistentCache cache; |
| |
| private final Map<K, V> map; |
| |
| private final Iterable<K> keys; |
| |
| private int memory = 0; |
| |
| InvalidateCacheAction(Iterable<K> keys, CacheWriteQueue<K, V> queue) { |
| this.keys = keys; |
| this.cache = queue.getCache(); |
| this.map = queue.getMap(); |
| } |
| |
| @Override |
| public void execute() { |
| if (map != null) { |
| for (K key : keys) { |
| cache.switchGenerationIfNeeded(); |
| map.remove(key); |
| } |
| } |
| } |
| |
| @Override |
| public int getMemory() { |
| long m = memory; |
| if (m == 0) { |
| for (K key : keys) { |
| m += key.getMemory(); |
| } |
| m = Math.min(Integer.MAX_VALUE, m); |
| memory = (int) m; |
| } |
| return (int) m; |
| } |
| |
| @Override |
| public String toString() { |
| return new StringBuilder("InvalidateCacheAction").append(Iterables.toString(keys)).toString(); |
| } |
| } |