1 /**
2 * This file Copyright (c) 2003-2015 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.cms.core.version;
35
36 import info.magnolia.cms.beans.config.VersionConfig;
37 import info.magnolia.context.SystemContext;
38 import info.magnolia.objectfactory.Components;
39 import info.magnolia.repository.RepositoryManager;
40
41 import javax.inject.Inject;
42 import javax.inject.Singleton;
43 import javax.jcr.Node;
44 import javax.jcr.RepositoryException;
45 import javax.jcr.version.VersionHistory;
46 import javax.jcr.version.VersionIterator;
47
48 import org.slf4j.Logger;
49 import org.slf4j.LoggerFactory;
50
51
52 /**
53 * CE version of the VersionManager. Limited to one version only.
54 */
55 @Singleton
56 public final class VersionManager extends BaseVersionManager {
57
58 private static Logger log = LoggerFactory.getLogger(VersionManager.class);
59
60 /**
61 * Don't instantiate. Use IoC instead.
62 * @deprecated since 5.4
63 */
64 @Deprecated
65 public VersionManager() {
66 this(Components.getComponent(SystemContext.class), Components.getComponent(RepositoryManager.class), Components.getComponent(CopyUtil.class));
67 }
68
69 @Inject
70 public VersionManager(SystemContext systemContext, RepositoryManager repositoryManager, CopyUtil copyUtil) {
71 super(systemContext, repositoryManager, copyUtil);
72 try {
73 this.createInitialStructure();
74 } catch (RepositoryException re) {
75 log.error("Failed to initialize VersionManager");
76 log.error(re.getMessage(), re);
77 }
78 }
79
80 /**
81 * @deprecated since 5.4 - use IoC instead
82 */
83 @Deprecated
84 public static VersionManager getInstance() {
85 return Components.getSingleton(VersionManager.class);
86 }
87
88 /**
89 * Since version is set "only revert" always return true.
90 */
91 @Override
92 public boolean isInvalidMaxVersions() {
93 return VersionConfig.getInstance().getMaxVersionAllowed() < 1;
94 }
95
96 /**
97 * Set version history to max version possible.
98 *
99 * @throws RepositoryException if failed to get VersionHistory or fail to remove
100 */
101 @Override
102 public void setMaxVersionHistory(Node node) throws RepositoryException {
103 VersionHistory history = node.getVersionHistory();
104 VersionIterator versions = history.getAllVersions();
105 // size - 2 to skip root version
106 long indexToRemove = (versions.getSize() - 2) - VersionConfig.getInstance().getMaxVersionAllowed();
107 if (indexToRemove > 0) {
108 // skip root version
109 versions.nextVersion();
110 // remove the version after rootVersion
111 for (; indexToRemove > 0; indexToRemove--) {
112 history.removeVersion(versions.nextVersion().getName());
113 }
114 }
115 }
116
117 }