1 /**
2 * This file Copyright (c) 2003-2010 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.webapp;
35
36 import info.magnolia.cms.beans.config.ContentRepository;
37 import info.magnolia.module.InstallContext;
38 import info.magnolia.module.ModuleVersionHandler;
39 import info.magnolia.module.delta.Delta;
40 import info.magnolia.module.delta.DeltaBuilder;
41 import info.magnolia.module.delta.Task;
42 import info.magnolia.module.model.Version;
43
44 import javax.jcr.RepositoryException;
45 import java.util.Collections;
46 import java.util.List;
47
48 /**
49 * ModuleVersionHandler for the webapp module; bootstraps webapp content only if all workspaces are empty.
50 * @see info.magnolia.module.webapp.WebappBootstrap
51 *
52 * @author gjoseph
53 * @version $Revision: $ ($Author: $)
54 */
55 public class WebappVersionHandler implements ModuleVersionHandler {
56 private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(WebappVersionHandler.class);
57
58 public Version getCurrentlyInstalled(InstallContext ctx) {
59 try {
60 final boolean anyContent = ContentRepository.checkIfInitialized();
61 log.info("Content was {}found in the repository, will {}bootstrap web-app.", (anyContent ? "" : "not "), (anyContent ? "not " : ""));
62 if (anyContent) {
63 return Version.UNDEFINED_TO;
64 } else {
65 // no content, so we'll execute.
66 return null;
67 }
68
69 } catch (RepositoryException e) {
70 //TODO
71 throw new RuntimeException("Couldn't check if repositories were empty: " + e.getMessage(), e);
72 }
73 }
74
75 public List<Delta> getDeltas(InstallContext ctx, Version from) {
76 if (from == null) {
77 final Version version = ctx.getCurrentModuleDefinition().getVersion();
78 return Collections.<Delta>singletonList(new WebappDelta(version));
79 } else if (!from.equals(Version.UNDEFINED_TO)) {
80 throw new IllegalStateException("This is a dummy module. It should not get updated.");
81 } else {
82 return Collections.emptyList();
83 }
84 }
85
86 public Delta getStartupDelta(InstallContext ctx) {
87 return DeltaBuilder.startup(ctx.getCurrentModuleDefinition(), Collections.<Task>emptyList());
88 }
89 }