| MappedOptionsChoice.java |
1 /**
2 * Distribution License:
3 * This is free software; you can redistribute it and/or modify it under
4 * the terms of the GNU Lesser General Public License, version 2.1 as published
5 * by the Free Software Foundation. This program is distributed in the hope
6 * that it will be useful, but WITHOUT ANY WARRANTY; without even the
7 * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
8 * See the GNU Lesser General Public License for more details.
9 *
10 * The License is available on the internet at:
11 * http://www.gnu.org/copyleft/llgpl.html
12 * or by writing to:
13 * Free Software Foundation, Inc.
14 * 59 Temple Place - Suite 330
15 * Boston, MA 02111-1307, USA
16 *
17 * Copyright: 2005
18 * The copyright to this program is held by it's authors.
19 *
20 * ID: $Id: IntOptionsChoice.java 1575 2007-07-28 16:18:14Z dmsmith $
21 */
22 package org.crosswire.common.config;
23
24 import java.util.Iterator;
25 import java.util.Map;
26 import java.util.ResourceBundle;
27 import java.util.TreeMap;
28
29 import org.crosswire.common.util.Logger;
30 import org.crosswire.jsword.JSOtherMsg;
31 import org.jdom.Element;
32
33 /**
34 * A class to convert between strings and objects of a type.
35 *
36 * @see gnu.lgpl.License for license details.<br>
37 * The copyright to this program is held by it's authors.
38 * @author Joe Walker [joe at eireneh dot com]
39 * @author DM Smith [dmsmith555 at yahoo dot com]
40 */
41 public class MappedOptionsChoice extends AbstractReflectedChoice implements MappedChoice<Object, Object> {
42 /*
43 * (non-Javadoc)
44 *
45 * @see org.crosswire.common.config.Choice#init(org.jdom.Element)
46 */
47 @Override
48 public void init(Element option, ResourceBundle configResources) throws StartupException {
49 assert configResources != null;
50
51 super.init(option, configResources);
52 Element mapElement = option.getChild("map");
53 if (mapElement == null) {
54 throw new StartupException(JSOtherMsg.lookupText("Missing {0} element in config.xml", "map"));
55 }
56
57 String name = mapElement.getAttributeValue("name");
58 Object map = ChoiceFactory.getDataMap().get(name);
59 if (map instanceof Map<?, ?>) {
60 options = (Map<?, ?>) map;
61 } else {
62 options = new TreeMap<Object, Object>();
63 }
64 }
65
66 /*
67 * (non-Javadoc)
68 *
69 * @see org.crosswire.common.config.MappedChoice#getOptions()
70 */
71 public Map<Object, Object> getOptions() {
72 return new TreeMap<Object, Object>(options);
73 }
74
75 /*
76 * (non-Javadoc)
77 *
78 * @see org.crosswire.common.config.Choice#getConvertionClass()
79 */
80 public Class<String> getConversionClass() {
81 return String.class;
82 }
83
84 /*
85 * (non-Javadoc)
86 *
87 * @see
88 * org.crosswire.common.config.AbstractReflectedChoice#convertToString(java
89 * .lang.Object)
90 */
91 @Override
92 public String convertToString(Object orig) {
93 return orig != null ? orig.toString() : "";
94 }
95
96 /*
97 * (non-Javadoc)
98 *
99 * @see
100 * org.crosswire.common.config.AbstractReflectedChoice#convertToObject(java
101 * .lang.String)
102 */
103 @Override
104 public Object convertToObject(String orig) {
105 Iterator<?> iter = options.entrySet().iterator();
106 Map.Entry<?, ?> mapEntry = null;
107 while (iter.hasNext()) {
108 mapEntry = (Map.Entry<?, ?>) iter.next();
109 if (mapEntry.getValue().toString().equals(orig) || mapEntry.getKey().toString().equals(orig)) {
110 return mapEntry.getKey().toString();
111 }
112 }
113 logger.warn(JSOtherMsg.lookupText("Ignoring invalid option: {0}", orig));
114 return "";
115 }
116
117 private static Logger logger = Logger.getLogger(MappedOptionsChoice.class);
118 private Map<?, ?> options;
119 }
120