01: /* ***** BEGIN LICENSE BLOCK *****
02: * Version: MPL 1.1
03: * The contents of this file are subject to the Mozilla Public License Version
04: * 1.1 (the "License"); you may not use this file except in compliance with
05: * the License. You may obtain a copy of the License at
06: * http://www.mozilla.org/MPL/
07: *
08: * Software distributed under the License is distributed on an "AS IS" basis,
09: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10: * for the specific language governing rights and limitations under the
11: * License.
12: *
13: * The Original Code is Riot.
14: *
15: * The Initial Developer of the Original Code is
16: * Neteye GmbH.
17: * Portions created by the Initial Developer are Copyright (C) 2007
18: * the Initial Developer. All Rights Reserved.
19: *
20: * Contributor(s):
21: * Felix Gnass [fgnass at neteye dot de]
22: *
23: * ***** END LICENSE BLOCK ***** */
24: package org.riotfamily.common.web.view.freemarker;
25:
26: import java.util.ArrayList;
27: import java.util.Collection;
28: import java.util.Collections;
29: import java.util.Iterator;
30:
31: import org.springframework.core.OrderComparator;
32:
33: import freemarker.template.DefaultObjectWrapper;
34: import freemarker.template.TemplateModel;
35: import freemarker.template.TemplateModelException;
36:
37: /**
38: * @author Felix Gnass [fgnass at neteye dot de]
39: * @since 6.5
40: */
41: public class PluginObjectWrapper extends DefaultObjectWrapper {
42:
43: private ArrayList plugins;
44:
45: public PluginObjectWrapper(Collection plugins) {
46: this .plugins = new ArrayList(plugins);
47: Collections.sort(this .plugins, new OrderComparator());
48: }
49:
50: public TemplateModel wrap(Object obj) throws TemplateModelException {
51: if (obj == null) {
52: return null;
53: }
54: if (obj instanceof TemplateModel) {
55: return (TemplateModel) obj;
56: }
57: Iterator it = plugins.iterator();
58: while (it.hasNext()) {
59: ObjectWrapperPlugin plugin = (ObjectWrapperPlugin) it
60: .next();
61: if (plugin.supports(obj)) {
62: return plugin.wrapSupportedObject(obj, this );
63: }
64: }
65: return wrapUnsupportedObject(obj);
66: }
67:
68: public TemplateModel wrapUnsupportedObject(Object obj)
69: throws TemplateModelException {
70:
71: return super.wrap(obj);
72: }
73:
74: }
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