Source Code Cross Referenced for NamespacesImpl.java in  » Development » Javolution » javolution » xml » stream » 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 » Development » Javolution » javolution.xml.stream 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Javolution - Java(TM) Solution for Real-Time and Embedded Systems
003:         * Copyright (C) 2006 - Javolution (http://javolution.org/)
004:         * All rights reserved.
005:         * 
006:         * Permission to use, copy, modify, and distribute this software is
007:         * freely granted, provided that this notice is preserved.
008:         */
009:        package javolution.xml.stream;
010:
011:        import j2mex.realtime.MemoryArea;
012:        import javolution.lang.Reusable;
013:        import javolution.text.CharArray;
014:        import javolution.util.FastList;
015:        import j2me.lang.CharSequence;
016:        import j2me.util.Iterator;
017:
018:        /**
019:         * This class represents the namespaces stack while parsing.
020:         *
021:         * @author  <a href="mailto:jean-marie@dautelle.com">Jean-Marie Dautelle</a>
022:         * @version 3.2, April 2, 2005
023:         */
024:        final class NamespacesImpl implements  Reusable, NamespaceContext {
025:
026:            /** 
027:             * Holds the number of predefined namespaces.
028:             */
029:            static final int NBR_PREDEFINED_NAMESPACES = 3;
030:
031:            /** 
032:             * Holds useful CharArray instances (non-static to avoid potential 
033:             * inter-thread corruption).
034:             */
035:            final CharArray _nullNsURI = new CharArray(""); // No namespace URI.
036:
037:            final CharArray _defaultNsPrefix = new CharArray("");
038:
039:            final CharArray _xml = new CharArray("xml");
040:
041:            final CharArray _xmlURI = new CharArray(
042:                    "http://www.w3.org/XML/1998/namespace");
043:
044:            final CharArray _xmlns = new CharArray("xmlns");
045:
046:            final CharArray _xmlnsURI = new CharArray(
047:                    "http://www.w3.org/2000/xmlns/");
048:
049:            /** 
050:             * Holds the current nesting level.
051:             */
052:            private int _nesting = 0;
053:
054:            /** 
055:             * Holds the currently mapped prefixes.
056:             */
057:            CharArray[] _prefixes = new CharArray[16];
058:
059:            /** 
060:             * Holds the currently mapped namespaces.
061:             */
062:            CharArray[] _namespaces = new CharArray[_prefixes.length];
063:
064:            /** 
065:             * Indicates if the prefix has to been written (when writing).
066:             */
067:            boolean[] _prefixesWritten = new boolean[_prefixes.length];
068:
069:            /** 
070:             * Holds the number of prefix/namespace association per nesting level.
071:             */
072:            int[] _namespacesCount = new int[16];
073:
074:            /** 
075:             * Holds the default namespace.
076:             */
077:            CharArray _defaultNamespace = _nullNsURI;
078:
079:            /** 
080:             * Holds the default namespace index.
081:             */
082:            int _defaultNamespaceIndex;
083:
084:            /**
085:             * Default constructor.
086:             */
087:            public NamespacesImpl() {
088:                _prefixes[0] = _defaultNsPrefix;
089:                _namespaces[0] = _nullNsURI;
090:                _prefixes[1] = _xml;
091:                _namespaces[1] = _xmlURI;
092:                _prefixes[2] = _xmlns;
093:                _namespaces[2] = _xmlnsURI;
094:                _namespacesCount[0] = NBR_PREDEFINED_NAMESPACES;
095:            }
096:
097:            // Implements NamespaceContext
098:            public CharArray getNamespaceURI(CharSequence prefix) {
099:                if (prefix == null)
100:                    throw new IllegalArgumentException(
101:                            "null prefix not allowed");
102:                return getNamespaceURINullAllowed(prefix);
103:            }
104:
105:            CharArray getNamespaceURINullAllowed(CharSequence prefix) {
106:                if ((prefix == null) || (prefix.length() == 0))
107:                    return _defaultNamespace;
108:                final int count = _namespacesCount[_nesting];
109:                for (int i = count; --i >= 0;) {
110:                    if (_prefixes[i].equals(prefix))
111:                        return _namespaces[i];
112:                }
113:                return null; // Not bound.
114:            }
115:
116:            // Implements NamespaceContext
117:            public CharArray getPrefix(CharSequence uri) {
118:                if (uri == null)
119:                    throw new IllegalArgumentException(
120:                            "null namespace URI not allowed");
121:                return _defaultNamespace.equals(uri) ? _defaultNsPrefix
122:                        : getPrefix(uri, _namespacesCount[_nesting]);
123:            }
124:
125:            CharArray getPrefix(CharSequence uri, int count) {
126:                for (int i = count; --i >= 0;) {
127:                    CharArray prefix = _prefixes[i];
128:                    CharArray namespace = _namespaces[i];
129:                    if (namespace.equals(uri)) { // Find matching uri.
130:                        // Checks that the prefix has not been overwriten after being set.
131:                        boolean isPrefixOverwritten = false;
132:                        for (int j = i + 1; j < count; j++) {
133:                            if (prefix.equals(_prefixes[j])) {
134:                                isPrefixOverwritten = true;
135:                                break;
136:                            }
137:                        }
138:                        if (!isPrefixOverwritten)
139:                            return prefix;
140:                    }
141:                }
142:                return null; // Not bound.
143:            }
144:
145:            // Implements NamespaceContext
146:            public Iterator getPrefixes(CharSequence namespaceURI) {
147:                FastList prefixes = new FastList();
148:                for (int i = _namespacesCount[_nesting]; --i >= 0;) {
149:                    if (_namespaces[i].equals(namespaceURI)) {
150:                        prefixes.add(_prefixes[i]);
151:                    }
152:                }
153:                return prefixes.iterator();
154:            }
155:
156:            // Null values are not allowed.
157:            void setPrefix(CharArray prefix, CharArray uri) {
158:                int index = _namespacesCount[_nesting];
159:                _prefixes[index] = prefix;
160:                _namespaces[index] = uri;
161:                if (prefix.length() == 0) { // The default namespace is set.
162:                    _defaultNamespaceIndex = index;
163:                    _defaultNamespace = uri;
164:                }
165:                if (++_namespacesCount[_nesting] >= _prefixes.length)
166:                    resizePrefixStack();
167:            }
168:
169:            // Used only by XMLStreamWriter (converts CharSequence to CharArray).
170:            // Null values are not allowed.
171:            void setPrefix(final CharSequence prefix, CharSequence uri,
172:                    boolean isWritten) {
173:                final int index = _namespacesCount[_nesting];
174:                _prefixesWritten[index] = isWritten;
175:                final int prefixLength = prefix.length();
176:                CharArray prefixTmp = _prefixesTmp[index];
177:                if ((prefixTmp == null)
178:                        || (prefixTmp.array().length < prefixLength)) {
179:                    MemoryArea.getMemoryArea(this ).executeInArea(
180:                            new Runnable() {
181:                                public void run() {
182:                                    _prefixesTmp[index] = new CharArray()
183:                                            .setArray(
184:                                                    new char[prefixLength + 32],
185:                                                    0, 0);
186:                                }
187:                            });
188:                    prefixTmp = _prefixesTmp[index];
189:                }
190:                for (int i = 0; i < prefixLength; i++) {
191:                    prefixTmp.array()[i] = prefix.charAt(i);
192:                }
193:                prefixTmp.setArray(prefixTmp.array(), 0, prefixLength);
194:
195:                final int uriLength = uri.length();
196:                CharArray namespaceTmp = _namespacesTmp[index];
197:                if ((namespaceTmp == null)
198:                        || (namespaceTmp.array().length < uriLength)) {
199:                    MemoryArea.getMemoryArea(this ).executeInArea(
200:                            new Runnable() {
201:                                public void run() {
202:                                    _namespacesTmp[index] = new CharArray()
203:                                            .setArray(new char[uriLength + 32],
204:                                                    0, 0);
205:                                }
206:                            });
207:                    namespaceTmp = _namespacesTmp[index];
208:                }
209:                for (int i = 0; i < uriLength; i++) {
210:                    namespaceTmp.array()[i] = uri.charAt(i);
211:                }
212:                namespaceTmp.setArray(namespaceTmp.array(), 0, uriLength);
213:
214:                // Sets the prefix using CharArray instances.
215:                setPrefix(prefixTmp, namespaceTmp);
216:            }
217:
218:            private CharArray[] _prefixesTmp = new CharArray[_prefixes.length];
219:
220:            private CharArray[] _namespacesTmp = new CharArray[_prefixes.length];
221:
222:            void pop() {
223:                if (_namespacesCount[--_nesting] <= _defaultNamespaceIndex) {
224:                    searchDefaultNamespace();
225:                }
226:            }
227:
228:            private void searchDefaultNamespace() {
229:                int count = _namespacesCount[_nesting];
230:                for (int i = count; --i >= 0;) {
231:                    if (_prefixes[i].length() == 0) {
232:                        _defaultNamespaceIndex = i;
233:                        return;
234:                    }
235:                }
236:                throw new Error("Cannot find default namespace");
237:            }
238:
239:            void push() {
240:                _nesting++;
241:                if (_nesting >= _namespacesCount.length) {
242:                    resizeNamespacesCount();
243:                }
244:                _namespacesCount[_nesting] = _namespacesCount[_nesting - 1];
245:            }
246:
247:            public void reset() {
248:                _defaultNamespace = _nullNsURI;
249:                _defaultNamespaceIndex = 0;
250:                _namespacesCount[0] = NBR_PREDEFINED_NAMESPACES;
251:                _nesting = 0;
252:            }
253:
254:            private void resizeNamespacesCount() {
255:                MemoryArea.getMemoryArea(this ).executeInArea(new Runnable() {
256:                    public void run() {
257:                        final int oldLength = _namespacesCount.length;
258:                        final int newLength = oldLength * 2;
259:
260:                        // Resizes namespaces counts.
261:                        int[] tmp = new int[newLength];
262:                        System
263:                                .arraycopy(_namespacesCount, 0, tmp, 0,
264:                                        oldLength);
265:                        _namespacesCount = tmp;
266:                    }
267:                });
268:            }
269:
270:            // Resizes prefix mapping  stack.
271:            private void resizePrefixStack() {
272:                MemoryArea.getMemoryArea(this ).executeInArea(new Runnable() {
273:                    public void run() {
274:                        final int oldLength = _prefixes.length;
275:                        final int newLength = oldLength * 2;
276:
277:                        // Resizes prefixes.
278:                        CharArray[] tmp0 = new CharArray[newLength];
279:                        System.arraycopy(_prefixes, 0, tmp0, 0, oldLength);
280:                        _prefixes = tmp0;
281:
282:                        // Resizes namespaces uri.
283:                        CharArray[] tmp1 = new CharArray[newLength];
284:                        System.arraycopy(_namespaces, 0, tmp1, 0, oldLength);
285:                        _namespaces = tmp1;
286:
287:                        // Resizes prefix sets.
288:                        boolean[] tmp2 = new boolean[newLength];
289:                        System.arraycopy(_prefixesWritten, 0, tmp2, 0,
290:                                oldLength);
291:                        _prefixesWritten = tmp2;
292:
293:                        // Resizes temporary prefix (CharSequence to CharArray conversion).
294:                        CharArray[] tmp3 = new CharArray[newLength];
295:                        System.arraycopy(_prefixesTmp, 0, tmp3, 0, oldLength);
296:                        _prefixesTmp = tmp3;
297:
298:                        // Resizes temporary namespaces (CharSequence to CharArray conversion).
299:                        CharArray[] tmp4 = new CharArray[newLength];
300:                        System.arraycopy(_namespacesTmp, 0, tmp4, 0, oldLength);
301:                        _namespacesTmp = tmp4;
302:
303:                    }
304:                });
305:            }
306:
307:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.