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.model.reader;
35
36 import org.apache.commons.beanutils.ConvertUtils;
37 import org.apache.commons.beanutils.Converter;
38 import org.apache.commons.betwixt.strategy.TypeBindingStrategy;
39
40 import java.util.HashSet;
41 import java.util.Set;
42
43 /**
44 * A TypeBindingStrategy for Betwixt where we can register our own {@link Converter}s. When such a Converter
45 * is registered, betwixt will attempt to convert the xml element's value from String to object.
46 * <strong>Beware</strong>, these converters are registered globally, thanks to the singleton-esque nature
47 * of BeanUtils. If a cleaner solution is found, it will be much welcome.
48 *
49 * @author gjoseph
50 * @version $Revision: $ ($Author: $)
51 */
52 class BetwixtBindingStrategy extends TypeBindingStrategy {
53 private final TypeBindingStrategy delegate = new TypeBindingStrategy.Default();
54 private final Set<Class<?>> convertedClasses;
55
56 BetwixtBindingStrategy() {
57 this.convertedClasses = new HashSet<Class<?>>();
58 }
59
60 void registerConverter(Class<?> clazz, Converter converter) {
61 convertedClasses.add(clazz);
62 // yuck, configuring the beanutils singleton - should be OK though, it's unlikely a 3rd party would use our model classes.
63 ConvertUtils.register(converter, clazz);
64 }
65
66 public TypeBindingStrategy.BindingType bindingType(Class type) {
67 if (convertedClasses.contains(type)) {
68 return TypeBindingStrategy.BindingType.PRIMITIVE;
69 }
70 return delegate.bindingType(type);
71 }
72 }