1 /**
2 * This file Copyright (c) 2010-2010 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.module.cache.commands;
35
36 import java.util.Arrays;
37 import java.util.Collection;
38 import java.util.HashSet;
39 import java.util.Set;
40
41 import info.magnolia.commands.MgnlCommand;
42 import info.magnolia.context.Context;
43 import info.magnolia.module.ModuleRegistry;
44 import info.magnolia.module.cache.Cache;
45 import info.magnolia.module.cache.CacheConfiguration;
46 import info.magnolia.module.cache.CacheFactory;
47 import info.magnolia.module.cache.CacheModule;
48 import info.magnolia.module.cache.CachePolicy;
49
50 /**
51 * Command to completely flush all entries related to given uuid from all available caches.
52 * @author had
53 * @version $Id:$
54 */
55 public class FlushFromCachesByUUIDCommand extends MgnlCommand {
56
57 public static final String REPOSITORY = "repository";
58 public static final String UUID = "uuid";
59
60 private final CacheModule cacheModule;
61
62 public FlushFromCachesByUUIDCommand() {
63 cacheModule = ModuleRegistry.Factory.getInstance().getModuleInstance(CacheModule.class);
64 }
65
66 @Override
67 public boolean execute(Context ctx) throws Exception {
68 final String uuid = (String) ctx.get(UUID);
69 final String repository = (String) ctx.get(REPOSITORY);
70 final Set<Object> keySet = new HashSet<Object>();
71 Collection<CacheConfiguration> cacheConfigs = cacheModule.getConfigurations().values();
72 for (CacheConfiguration config : cacheConfigs) {
73 CachePolicy policy = config.getCachePolicy();
74 if (policy == null) {
75 continue;
76 }
77 keySet.addAll(Arrays.asList(policy.removeCacheKeys(uuid, repository)));
78 }
79
80 CacheFactory factory = cacheModule.getCacheFactory();
81 // flush each key from all caches
82 for (Object key : keySet) {
83 for (CacheConfiguration config : cacheConfigs) {
84 final Cache cache = factory.getCache(config.getName());
85 cache.remove(key);
86 }
87 }
88 return true;
89 }
90
91 }