01: /*
02: JSPWiki - a JSP-based WikiWiki clone.
03:
04: Copyright (C) 2001-2002 Janne Jalkanen (Janne.Jalkanen@iki.fi)
05:
06: This program is free software; you can redistribute it and/or modify
07: it under the terms of the GNU Lesser General Public License as published by
08: the Free Software Foundation; either version 2.1 of the License, or
09: (at your option) any later version.
10:
11: This program is distributed in the hope that it will be useful,
12: but WITHOUT ANY WARRANTY; without even the implied warranty of
13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14: GNU Lesser General Public License for more details.
15:
16: You should have received a copy of the GNU Lesser General Public License
17: along with this program; if not, write to the Free Software
18: Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19: */
20: package com.ecyrd.jspwiki.modules;
21:
22: import java.util.Collection;
23:
24: import com.ecyrd.jspwiki.Release;
25: import com.ecyrd.jspwiki.WikiEngine;
26:
27: /**
28: * Superclass for all JSPWiki managers for modules (plugins, etc).
29: * @author jalkanen
30: */
31: public abstract class ModuleManager {
32:
33: /**
34: * Location of the property-files of plugins.
35: * (Each plugin should include this property-file in its jar-file)
36: */
37: public static final String PLUGIN_RESOURCE_LOCATION = "ini/jspwiki_module.xml";
38:
39: public static final String LOAD_INCOMPATIBLE_MODULES = "jspwiki.loadIncompatibleModules";
40:
41: protected WikiEngine m_engine;
42:
43: private boolean m_loadIncompatibleModules = false;
44:
45: public ModuleManager(WikiEngine engine) {
46: m_engine = engine;
47: }
48:
49: public boolean checkCompatibility(WikiModuleInfo info) {
50: if (!m_loadIncompatibleModules) {
51: String minVersion = info.getMinVersion();
52: String maxVersion = info.getMaxVersion();
53:
54: return Release.isNewerOrEqual(minVersion)
55: && Release.isOlderOrEqual(maxVersion);
56: }
57:
58: return true;
59: }
60:
61: /**
62: * Returns a collection of modules currently managed by this ModuleManager. Each
63: * entry is an instance of the WikiModuleInfo class. This method should return something
64: * which is safe to iterate over, even if the underlying collection changes.
65: *
66: * @return A Collection of WikiModuleInfo instances.
67: */
68: public abstract Collection modules();
69: }
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