Source Code Cross Referenced for ServletContextImpl.java in  » EJB-Server-resin-3.1.5 » resin » com » caucho » server » webapp » 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 » EJB Server resin 3.1.5 » resin » com.caucho.server.webapp 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
003:         *
004:         * This file is part of Resin(R) Open Source
005:         *
006:         * Each copy or derived work must preserve the copyright notice and this
007:         * notice unmodified.
008:         *
009:         * Resin Open Source is free software; you can redistribute it and/or modify
010:         * it under the terms of the GNU General Public License as published by
011:         * the Free Software Foundation; either version 2 of the License, or
012:         * (at your option) any later version.
013:         *
014:         * Resin Open Source is distributed in the hope that it will be useful,
015:         * but WITHOUT ANY WARRANTY; without even the implied warranty of
016:         * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
017:         * of NON-INFRINGEMENT.  See the GNU General Public License for more
018:         * details.
019:         *
020:         * You should have received a copy of the GNU General Public License
021:         * along with Resin Open Source; if not, write to the
022:         *
023:         *   Free Software Foundation, Inc.
024:         *   59 Temple Place, Suite 330
025:         *   Boston, MA 02111-1307  USA
026:         *
027:         * @author Scott Ferguson
028:         */
029:
030:        package com.caucho.server.webapp;
031:
032:        import com.caucho.log.Log;
033:        import com.caucho.util.L10N;
034:        import com.caucho.vfs.Path;
035:        import com.caucho.vfs.Vfs;
036:
037:        import javax.servlet.RequestDispatcher;
038:        import javax.servlet.Servlet;
039:        import javax.servlet.ServletContext;
040:        import javax.servlet.ServletContextAttributeEvent;
041:        import javax.servlet.ServletContextAttributeListener;
042:        import java.io.IOException;
043:        import java.io.InputStream;
044:        import java.net.URL;
045:        import java.util.ArrayList;
046:        import java.util.Collections;
047:        import java.util.Enumeration;
048:        import java.util.HashMap;
049:        import java.util.HashSet;
050:        import java.util.Set;
051:        import java.util.logging.Level;
052:        import java.util.logging.Logger;
053:
054:        /**
055:         * Bare-bones servlet context implementation.
056:         */
057:        public class ServletContextImpl implements  ServletContext {
058:            static final Logger log = Log.open(ServletContextImpl.class);
059:            static final L10N L = new L10N(ServletContextImpl.class);
060:
061:            private String _name;
062:
063:            private HashMap<String, Object> _attributes = new HashMap<String, Object>();
064:
065:            private ArrayList<ServletContextAttributeListener> _applicationAttributeListeners;
066:
067:            private HashMap<String, String> _initParams = new HashMap<String, String>();
068:
069:            public Path getAppDir() {
070:                return Vfs.lookup();
071:            }
072:
073:            /**
074:             * Sets the servlet context name
075:             */
076:            public void setDisplayName(String name) {
077:                _name = name;
078:            }
079:
080:            /**
081:             * Gets the servlet context name
082:             */
083:            public String getServletContextName() {
084:                return _name;
085:            }
086:
087:            /**
088:             * Gets the servlet context name
089:             */
090:            public String getContextPath() {
091:                return _name;
092:            }
093:
094:            /**
095:             * Adds the listener.
096:             */
097:            protected void addAttributeListener(
098:                    ServletContextAttributeListener listener) {
099:                if (_applicationAttributeListeners == null)
100:                    _applicationAttributeListeners = new ArrayList<ServletContextAttributeListener>();
101:
102:                _applicationAttributeListeners.add(listener);
103:            }
104:
105:            /**
106:             * Returns the server information
107:             */
108:            public String getServerInfo() {
109:                return "Resin/" + com.caucho.Version.VERSION;
110:            }
111:
112:            /**
113:             * Returns the servlet major version
114:             */
115:            public int getMajorVersion() {
116:                return 2;
117:            }
118:
119:            /**
120:             * Returns the servlet minor version
121:             */
122:            public int getMinorVersion() {
123:                return 5;
124:            }
125:
126:            /**
127:             * Sets an init param
128:             */
129:            protected void setInitParameter(String name, String value) {
130:                _initParams.put(name, value);
131:            }
132:
133:            /**
134:             * Gets the init params
135:             */
136:            public String getInitParameter(String name) {
137:                return (String) _initParams.get(name);
138:            }
139:
140:            /**
141:             * Gets the init params
142:             */
143:            public Enumeration getInitParameterNames() {
144:                return Collections.enumeration(_initParams.keySet());
145:            }
146:
147:            /**
148:             * Returns the named attribute.
149:             */
150:            public Object getAttribute(String name) {
151:                synchronized (_attributes) {
152:                    Object value = _attributes.get(name);
153:
154:                    return value;
155:                }
156:            }
157:
158:            /**
159:             * Returns an enumeration of the attribute names.
160:             */
161:            public Enumeration getAttributeNames() {
162:                synchronized (_attributes) {
163:                    return Collections.enumeration(_attributes.keySet());
164:                }
165:            }
166:
167:            /**
168:             * Sets an application attribute.
169:             *
170:             * @param name the name of the attribute
171:             * @param value the value of the attribute
172:             */
173:            public void setAttribute(String name, Object value) {
174:                Object oldValue;
175:
176:                synchronized (_attributes) {
177:                    if (value != null)
178:                        oldValue = _attributes.put(name, value);
179:                    else
180:                        oldValue = _attributes.remove(name);
181:                }
182:
183:                // Call any listeners
184:                if (_applicationAttributeListeners != null) {
185:                    ServletContextAttributeEvent event;
186:
187:                    if (oldValue != null)
188:                        event = new ServletContextAttributeEvent(this , name,
189:                                oldValue);
190:                    else
191:                        event = new ServletContextAttributeEvent(this , name,
192:                                value);
193:
194:                    for (int i = 0; i < _applicationAttributeListeners.size(); i++) {
195:                        ServletContextAttributeListener listener;
196:
197:                        Object objListener = _applicationAttributeListeners
198:                                .get(i);
199:                        listener = (ServletContextAttributeListener) objListener;
200:
201:                        try {
202:                            if (oldValue != null)
203:                                listener.attributeReplaced(event);
204:                            else
205:                                listener.attributeAdded(event);
206:                        } catch (Throwable e) {
207:                            log.log(Level.FINE, e.toString(), e);
208:                        }
209:                    }
210:                }
211:            }
212:
213:            /**
214:             * Removes an attribute from the servlet context.
215:             *
216:             * @param name the name of the attribute to remove.
217:             */
218:            public void removeAttribute(String name) {
219:                Object oldValue;
220:
221:                synchronized (_attributes) {
222:                    oldValue = _attributes.remove(name);
223:                }
224:
225:                // Call any listeners
226:                if (_applicationAttributeListeners != null) {
227:                    ServletContextAttributeEvent event;
228:
229:                    event = new ServletContextAttributeEvent(this , name,
230:                            oldValue);
231:
232:                    for (int i = 0; i < _applicationAttributeListeners.size(); i++) {
233:                        ServletContextAttributeListener listener;
234:
235:                        Object objListener = _applicationAttributeListeners
236:                                .get(i);
237:                        listener = (ServletContextAttributeListener) objListener;
238:
239:                        try {
240:                            listener.attributeRemoved(event);
241:                        } catch (Throwable e) {
242:                            log.log(Level.FINE, e.toString(), e);
243:                        }
244:                    }
245:                }
246:            }
247:
248:            /**
249:             * Maps from a URI to a real path.
250:             */
251:            public String getRealPath(String uri) {
252:                return getAppDir().lookup("./" + uri).getNativePath();
253:            }
254:
255:            /**
256:             * Returns a resource for the given uri.
257:             *
258:             * <p>XXX: jdk 1.1.x doesn't appear to allow creation of private
259:             * URL streams.
260:             */
261:            public URL getResource(String name)
262:                    throws java.net.MalformedURLException {
263:                if (!name.startsWith("/"))
264:                    throw new java.net.MalformedURLException(name);
265:
266:                String realPath = getRealPath(name);
267:
268:                Path path = getAppDir().lookupNative(realPath);
269:
270:                if (path.exists())
271:                    return new URL(path.getURL());
272:
273:                return null;
274:            }
275:
276:            /**
277:             * Returns the resource for a uripath as an input stream.
278:             */
279:            public InputStream getResourceAsStream(String uripath) {
280:                Path path = getAppDir().lookupNative(getRealPath(uripath));
281:
282:                try {
283:                    if (path.canRead())
284:                        return path.openRead();
285:                    else
286:                        return null;
287:                } catch (IOException e) {
288:                    log.log(Level.FINEST, e.toString(), e);
289:
290:                    return null;
291:                }
292:            }
293:
294:            /**
295:             * Returns an enumeration of all the resources.
296:             */
297:            public Set getResourcePaths(String prefix) {
298:                if (!prefix.endsWith("/"))
299:                    prefix = prefix + "/";
300:
301:                Path path = getAppDir().lookup(getRealPath(prefix));
302:
303:                HashSet<String> set = new HashSet<String>();
304:
305:                try {
306:                    String[] list = path.list();
307:
308:                    for (int i = 0; i < list.length; i++) {
309:                        if (path.lookup(list[i]).isDirectory())
310:                            set.add(prefix + list[i] + '/');
311:                        else
312:                            set.add(prefix + list[i]);
313:                    }
314:                } catch (IOException e) {
315:                }
316:
317:                return set;
318:            }
319:
320:            /**
321:             * Returns the servlet context for the name.
322:             */
323:            public ServletContext getContext(String uri) {
324:                return this ;
325:            }
326:
327:            /**
328:             * Returns the mime type for the name.
329:             */
330:            public String getMimeType(String uri) {
331:                return null;
332:            }
333:
334:            /**
335:             * Returns the dispatcher.
336:             */
337:            public RequestDispatcher getRequestDispatcher(String uri) {
338:                return null;
339:            }
340:
341:            /**
342:             * Returns a dispatcher for the named servlet.
343:             */
344:            public RequestDispatcher getNamedDispatcher(String servletName) {
345:                return null;
346:            }
347:
348:            /**
349:             * Logging.
350:             */
351:
352:            /**
353:             * Logs a message to the error file.
354:             *
355:             * @param msg the message to log
356:             */
357:            public final void log(String message) {
358:                log(message, null);
359:            }
360:
361:            /**
362:             * @deprecated
363:             */
364:            public final void log(Exception e, String msg) {
365:                log(msg, e);
366:            }
367:
368:            /**
369:             * Error logging
370:             *
371:             * @param message message to log
372:             * @param e stack trace of the error
373:             */
374:            public void log(String message, Throwable e) {
375:                if (e != null)
376:                    log.log(Level.WARNING, message, e);
377:                else
378:                    log.info(message);
379:            }
380:
381:            //
382:            // Deprecated methods
383:            //
384:
385:            public Servlet getServlet(String name) {
386:                throw new UnsupportedOperationException(
387:                        "getServlet is deprecated");
388:            }
389:
390:            public Enumeration getServletNames() {
391:                throw new UnsupportedOperationException(
392:                        "getServletNames is deprecated");
393:            }
394:
395:            public Enumeration getServlets() {
396:                throw new UnsupportedOperationException(
397:                        "getServlets is deprecated");
398:            }
399:        }
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.