Source Code Cross Referenced for LocalizedNameGenerator.java in  » Library » Tapestry » org » apache » tapestry » ioc » internal » util » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Library » Tapestry » org.apache.tapestry.ioc.internal.util 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        // Copyright 2006, 2007 The Apache Software Foundation
002:        //
003:        // Licensed under the Apache License, Version 2.0 (the "License");
004:        // you may not use this file except in compliance with the License.
005:        // You may obtain a copy of the License at
006:        //
007:        //     http://www.apache.org/licenses/LICENSE-2.0
008:        //
009:        // Unless required by applicable law or agreed to in writing, software
010:        // distributed under the License is distributed on an "AS IS" BASIS,
011:        // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012:        // See the License for the specific language governing permissions and
013:        // limitations under the License.
014:
015:        package org.apache.tapestry.ioc.internal.util;
016:
017:        import java.util.Iterator;
018:        import java.util.Locale;
019:        import java.util.NoSuchElementException;
020:
021:        /**
022:         * Used in a wide variety of resource searches. Generates a series of name variations from a path
023:         * (which must include a suffix) and locale.
024:         * <P>
025:         * This class is not threadsafe.
026:         */
027:        public class LocalizedNameGenerator implements  Iterator<String>,
028:                Iterable<String> {
029:            private final int _baseNameLength;
030:
031:            private final String _suffix;
032:
033:            private final StringBuilder _builder;
034:
035:            private final String _language;
036:
037:            private final String _country;
038:
039:            private final String _variant;
040:
041:            private int _state;
042:
043:            private int _prevState;
044:
045:            private static final int INITIAL = 0;
046:
047:            private static final int LCV = 1;
048:
049:            private static final int LC = 2;
050:
051:            private static final int LV = 3;
052:
053:            private static final int L = 4;
054:
055:            private static final int BARE = 5;
056:
057:            private static final int EXHAUSTED = 6;
058:
059:            public LocalizedNameGenerator(String path, Locale locale) {
060:                int dotx = path.lastIndexOf('.');
061:
062:                // TODO: Case where there is no suffix
063:
064:                String baseName = path.substring(0, dotx);
065:
066:                _suffix = path.substring(dotx);
067:
068:                _baseNameLength = dotx;
069:
070:                _language = locale.getLanguage();
071:                _country = locale.getCountry();
072:                _variant = locale.getVariant();
073:
074:                _state = INITIAL;
075:                _prevState = INITIAL;
076:
077:                _builder = new StringBuilder(baseName);
078:
079:                advance();
080:            }
081:
082:            private void advance() {
083:                _prevState = _state;
084:
085:                while (_state != EXHAUSTED) {
086:                    _state++;
087:
088:                    switch (_state) {
089:                    case LCV:
090:
091:                        if (InternalUtils.isBlank(_variant))
092:                            continue;
093:
094:                        return;
095:
096:                    case LC:
097:
098:                        if (InternalUtils.isBlank(_country))
099:                            continue;
100:
101:                        return;
102:
103:                    case LV:
104:
105:                        // If _country is null, then we've already generated this string
106:                        // as state LCV and we can continue directly to state L
107:
108:                        if (InternalUtils.isBlank(_variant)
109:                                || InternalUtils.isBlank(_country))
110:                            continue;
111:
112:                        return;
113:
114:                    case L:
115:
116:                        if (InternalUtils.isBlank(_language))
117:                            continue;
118:
119:                        return;
120:
121:                    case BARE:
122:                    default:
123:                        return;
124:                    }
125:                }
126:            }
127:
128:            /**
129:             * Returns true if there are more name variants to be returned, false otherwise.
130:             */
131:
132:            public boolean hasNext() {
133:                return _state != EXHAUSTED;
134:            }
135:
136:            /**
137:             * Returns the next localized variant.
138:             * 
139:             * @throws NoSuchElementException
140:             *             if all variants have been returned.
141:             */
142:
143:            public String next() {
144:                if (_state == EXHAUSTED)
145:                    throw new NoSuchElementException();
146:
147:                String result = build();
148:
149:                advance();
150:
151:                return result;
152:            }
153:
154:            private String build() {
155:                _builder.setLength(_baseNameLength);
156:
157:                if (_state == LC || _state == LCV || _state == L) {
158:                    _builder.append('_');
159:                    _builder.append(_language);
160:                }
161:
162:                // For LV, we want two underscores between language
163:                // and variant.
164:
165:                if (_state == LC || _state == LCV || _state == LV) {
166:                    _builder.append('_');
167:
168:                    if (_state != LV)
169:                        _builder.append(_country);
170:                }
171:
172:                if (_state == LV || _state == LCV) {
173:                    _builder.append('_');
174:                    _builder.append(_variant);
175:                }
176:
177:                if (_suffix != null)
178:                    _builder.append(_suffix);
179:
180:                return _builder.toString();
181:            }
182:
183:            public Locale getCurrentLocale() {
184:                switch (_prevState) {
185:                case LCV:
186:
187:                    return new Locale(_language, _country, _variant);
188:
189:                case LC:
190:
191:                    return new Locale(_language, _country, "");
192:
193:                case LV:
194:
195:                    return new Locale(_language, "", _variant);
196:
197:                case L:
198:
199:                    return new Locale(_language, "", "");
200:
201:                default:
202:                    return null;
203:                }
204:            }
205:
206:            /** @throws UnsupportedOperationException */
207:            public void remove() {
208:                throw new UnsupportedOperationException();
209:            }
210:
211:            /** So that LNG may be used with the for loop. */
212:            public Iterator<String> iterator() {
213:                return this;
214:            }
215:
216:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.