Source Code Cross Referenced for DeliImpl.java in  » Content-Management-System » apache-lenya-2.0 » org » apache » cocoon » components » deli » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Content Management System » apache lenya 2.0 » org.apache.cocoon.components.deli 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Licensed to the Apache Software Foundation (ASF) under one or more
003:         * contributor license agreements.  See the NOTICE file distributed with
004:         * this work for additional information regarding copyright ownership.
005:         * The ASF licenses this file to You under the Apache License, Version 2.0
006:         * (the "License"); you may not use this file except in compliance with
007:         * the License.  You may obtain a copy of the License at
008:         *
009:         *      http://www.apache.org/licenses/LICENSE-2.0
010:         *
011:         * Unless required by applicable law or agreed to in writing, software
012:         * distributed under the License is distributed on an "AS IS" BASIS,
013:         * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014:         * See the License for the specific language governing permissions and
015:         * limitations under the License.
016:         */
017:        package org.apache.cocoon.components.deli;
018:
019:        import java.io.BufferedReader;
020:        import java.io.IOException;
021:        import java.net.MalformedURLException;
022:        import java.security.Principal;
023:        import java.util.Enumeration;
024:        import java.util.Iterator;
025:        import java.util.Locale;
026:        import java.util.Map;
027:        import java.util.Set;
028:        import java.util.Vector;
029:
030:        import javax.servlet.RequestDispatcher;
031:        import javax.servlet.Servlet;
032:        import javax.servlet.ServletContext;
033:        import javax.servlet.ServletException;
034:        import javax.servlet.ServletInputStream;
035:        import javax.servlet.http.Cookie;
036:        import javax.servlet.http.HttpServletRequest;
037:        import javax.servlet.http.HttpSession;
038:
039:        import org.apache.avalon.framework.activity.Disposable;
040:        import org.apache.avalon.framework.activity.Initializable;
041:        import org.apache.avalon.framework.context.Context;
042:        import org.apache.avalon.framework.context.ContextException;
043:        import org.apache.avalon.framework.context.Contextualizable;
044:        import org.apache.avalon.framework.logger.AbstractLogEnabled;
045:        import org.apache.avalon.framework.parameters.Parameterizable;
046:        import org.apache.avalon.framework.parameters.Parameters;
047:        import org.apache.avalon.framework.service.ServiceException;
048:        import org.apache.avalon.framework.service.ServiceManager;
049:        import org.apache.avalon.framework.service.Serviceable;
050:        import org.apache.avalon.framework.thread.ThreadSafe;
051:        import org.apache.cocoon.Constants;
052:        import org.apache.cocoon.environment.Request;
053:        import org.apache.excalibur.xml.dom.DOMParser;
054:        import org.w3c.dom.Document;
055:        import org.w3c.dom.Element;
056:        import org.w3c.dom.Text;
057:
058:        import com.hp.hpl.deli.Profile;
059:        import com.hp.hpl.deli.ProfileAttribute;
060:        import com.hp.hpl.deli.Workspace;
061:
062:        /**
063:         * Allows the use of <a href="http://www-uk.hpl.hp.com/people/marbut/">DELI</a>
064:         * to provide <a href="http://www.w3.org/Mobile/CCPP/">CC/PP</a> or
065:         * <a href="http://www1.wapforum.org/tech/terms.asp?doc=WAP-248-UAProf-20010530-p.pdf">UAProf</a>
066:         * support. For more details of DELI see the Technical Report
067:         * <a href="http://www-uk.hpl.hp.com/people/marbut/DeliUserGuideWEB.htm">DELI:
068:         * A Delivery Context Library for CC/PP and UAProf</a>.
069:         *
070:         * @author <a href="mailto:marbut@hplb.hpl.hp.com">Mark H. Butler</a>
071:         * @version CVS $Id: DeliImpl.java 433543 2006-08-22 06:22:54Z crossley $
072:         */
073:        public final class DeliImpl extends AbstractLogEnabled implements 
074:                Parameterizable, Deli, Serviceable, Disposable, Initializable,
075:                ThreadSafe, Contextualizable {
076:
077:            /** The name of the main DELI configuration file */
078:            private String deliConfig = "deli/config/deliConfig.xml";
079:
080:            /** The service manager */
081:            protected ServiceManager manager = null;
082:
083:            /** Parser used to construct the DOM tree to import the profile to a stylesheet */
084:            protected DOMParser parser;
085:
086:            /** A context, used to retrieve the path to the configuration file */
087:            protected CocoonServletContext servletContext;
088:
089:            /** Contextualize this class */
090:            public void contextualize(Context context) throws ContextException {
091:                org.apache.cocoon.environment.Context ctx = (org.apache.cocoon.environment.Context) context
092:                        .get(Constants.CONTEXT_ENVIRONMENT_CONTEXT);
093:                this .servletContext = new CocoonServletContext(ctx);
094:            }
095:
096:            /** Service this class */
097:            public void service(ServiceManager manager) throws ServiceException {
098:                this .manager = manager;
099:                try {
100:                    this .parser = (DOMParser) this .manager
101:                            .lookup(DOMParser.ROLE);
102:                } catch (ServiceException e) {
103:                    getLogger().error("DELI Exception while creating parser: ",
104:                            e);
105:                    throw e;
106:                }
107:            }
108:
109:            /** Configure this class */
110:            public void parameterize(Parameters params) {
111:                this .deliConfig = params.getParameter("deli-config-file",
112:                        this .deliConfig);
113:            }
114:
115:            /**
116:             * Initialize
117:             */
118:            public void initialize() throws Exception {
119:                try {
120:                    Workspace.getInstance().configure(this .servletContext,
121:                            this .deliConfig);
122:                } catch (Exception e) {
123:                    getLogger().error(
124:                            "DELI Exception while creating workspace: ", e);
125:                    throw e;
126:                }
127:            }
128:
129:            /** Dispose of this class */
130:            public void dispose() {
131:                if (parser != null) {
132:                    this .manager.release(parser);
133:                }
134:                this .parser = null;
135:            }
136:
137:            /** Process a HttpServletRequest and either extract
138:             *  CC/PP or UAProf information from it and use this information
139:             *  to resolve a profile or examine the user agent string, match
140:             *  this using the DELI legacy device database, and use this
141:             *  information to retrieve the appropriate CC/PP profile.
142:             *
143:             * @param	theRequest	The Request.
144:             * @return	The profile as a vector of profile attributes.
145:             * @throws	IOException
146:             * @throws	ServletException
147:             * @throws	Exception
148:             */
149:            public Profile getProfile(Request theRequest) throws IOException,
150:                    ServletException, Exception {
151:                Profile theProfile = null;
152:                try {
153:                    CocoonServletRequest servletRequest = new CocoonServletRequest(
154:                            theRequest);
155:                    theProfile = new Profile(servletRequest);
156:                } catch (Exception e) {
157:                    getLogger().error(
158:                            "DELI Exception while retrieving profile: ", e);
159:                    throw e;
160:                }
161:                return theProfile;
162:            }
163:
164:            /** Convert a profile stored as a vector of profile attributes
165:             *  to a DOM tree.
166:             *
167:             * @param	theProfile	The profile as a vector of profile attributes.
168:             * @return	The DOM tree.
169:             */
170:            public Document getUACapabilities(Profile theProfile)
171:                    throws Exception {
172:                Document document = null;
173:                try {
174:                    Element rootElement;
175:                    Element attributeNode;
176:                    Element complexAttributeNode;
177:                    Text text;
178:
179:                    document = parser.createDocument();
180:                    rootElement = document.createElementNS(null, "browser");
181:                    document.appendChild(rootElement);
182:
183:                    Iterator profileIter = theProfile.iterator();
184:                    while (profileIter.hasNext()) {
185:                        ProfileAttribute p = (ProfileAttribute) profileIter
186:                                .next();
187:                        attributeNode = document.createElementNS(null, p
188:                                .getAttribute());
189:                        rootElement.appendChild(attributeNode);
190:                        Vector attributeValue = p.get();
191:                        if (attributeValue != null) {
192:                            Iterator complexValueIter = attributeValue
193:                                    .iterator();
194:                            if (p.getCollectionType().equals("Simple")) {
195:                                // Simple attribute
196:                                String value = (String) complexValueIter.next();
197:                                text = document.createTextNode(value);
198:                                attributeNode.appendChild(text);
199:                            } else {
200:                                // Complex attribute e.g. Seq or Bag
201:                                while (complexValueIter.hasNext()) {
202:                                    String value = (String) complexValueIter
203:                                            .next();
204:                                    complexAttributeNode = document
205:                                            .createElementNS(null, "li");
206:                                    attributeNode
207:                                            .appendChild(complexAttributeNode);
208:                                    text = document.createTextNode(value);
209:                                    complexAttributeNode.appendChild(text);
210:                                }
211:                            }
212:                        }
213:                    }
214:                } catch (Exception e) {
215:                    getLogger()
216:                            .error(
217:                                    "DELI Exception while converting profile to DOM fragment: ",
218:                                    e);
219:                    throw e;
220:                }
221:                return document;
222:            }
223:
224:            public Document getUACapabilities(Request theRequest)
225:                    throws IOException, Exception {
226:                return this .getUACapabilities(this .getProfile(theRequest));
227:            }
228:
229:            /**
230:             * Stub implementation of Servlet Context
231:             */
232:            public static class CocoonServletContext implements  ServletContext {
233:
234:                org.apache.cocoon.environment.Context envContext;
235:
236:                public CocoonServletContext(
237:                        org.apache.cocoon.environment.Context context) {
238:                    this .envContext = context;
239:                }
240:
241:                public Object getAttribute(String name) {
242:                    return envContext.getAttribute(name);
243:                }
244:
245:                public void setAttribute(String name, Object value) {
246:                    envContext.setAttribute(name, value);
247:                }
248:
249:                public Enumeration getAttributeNames() {
250:                    return envContext.getAttributeNames();
251:                }
252:
253:                public java.net.URL getResource(String path)
254:                        throws MalformedURLException {
255:                    return envContext.getResource(path);
256:                }
257:
258:                public String getRealPath(String path) {
259:                    return envContext.getRealPath(path);
260:                }
261:
262:                public String getMimeType(String file) {
263:                    return envContext.getMimeType(file);
264:                }
265:
266:                public String getInitParameter(String name) {
267:                    return envContext.getInitParameter(name);
268:                }
269:
270:                public java.io.InputStream getResourceAsStream(String path) {
271:                    return envContext.getResourceAsStream(path);
272:                }
273:
274:                public ServletContext getContext(String uripath) {
275:                    return (null);
276:                }
277:
278:                public Enumeration getInitParameterNames() {
279:                    return (null);
280:                }
281:
282:                public int getMajorVersion() {
283:                    return (2);
284:                }
285:
286:                public int getMinorVersion() {
287:                    return (3);
288:                }
289:
290:                public RequestDispatcher getNamedDispatcher(String name) {
291:                    return (null);
292:                }
293:
294:                public RequestDispatcher getRequestDispatcher(String path) {
295:                    return (null);
296:                }
297:
298:                public Set getResourcePaths(String path) {
299:                    return null;
300:                }
301:
302:                public String getServerInfo() {
303:                    return (null);
304:                }
305:
306:                /**
307:                 * @deprecated The method DeliImpl.CocoonServletContext.getServlet(String)
308:                 *             overrides a deprecated method from ServletContext.
309:                 * @see <a href="http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletContext.html#getServlet(java.lang.String)">ServletContext#getServlet(java.lang.String)</a>
310:                 */
311:                public Servlet getServlet(String name) throws ServletException {
312:                    return (null);
313:                }
314:
315:                public String getServletContextName() {
316:                    return (null);
317:                }
318:
319:                /**
320:                 * @deprecated The method DeliImpl.CocoonServletContext.getServletNames()
321:                 *             overrides a deprecated method from ServletContext.
322:                 * @see <a href="http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletContext.html#getServletNames()">ServletContext#getServletNames()</a>
323:                 */
324:                public Enumeration getServletNames() {
325:                    return (null);
326:                }
327:
328:                /**
329:                 * @deprecated The method DeliImpl.CocoonServletContext.getServlets()
330:                 *             overrides a deprecated method from ServletContext.
331:                 * @see <a href="http://java.sun.com/j2ee/sdk_1.3/techdocs/api/javax/servlet/ServletContext.html#getServlets()">ServletContext#getServlets()</a>
332:                 */
333:                public Enumeration getServlets() {
334:                    return (null);
335:                }
336:
337:                public void log(String message) {
338:                }
339:
340:                /** @deprecated use {@link #log(String message, Throwable throwable)} instead. */
341:                public void log(Exception exception, String message) {
342:                }
343:
344:                public void log(String message, Throwable throwable) {
345:                }
346:
347:                public void removeAttribute(String name) {
348:                }
349:            }
350:
351:            /**
352:             * Stub implementation of HttpServletRequest
353:             */
354:            public static class CocoonServletRequest implements 
355:                    HttpServletRequest {
356:                Request request;
357:
358:                public CocoonServletRequest(Request request) {
359:                    this .request = request;
360:                }
361:
362:                public String getAuthType() {
363:                    return request.getAuthType();
364:                }
365:
366:                public long getDateHeader(String s) {
367:                    return request.getDateHeader(s);
368:                }
369:
370:                public String getHeader(String s) {
371:                    return request.getHeader(s);
372:                }
373:
374:                public Enumeration getHeaders(String s) {
375:                    return request.getHeaders(s);
376:                }
377:
378:                public Enumeration getHeaderNames() {
379:                    return request.getHeaderNames();
380:                }
381:
382:                public String getMethod() {
383:                    return request.getMethod();
384:                }
385:
386:                public String getPathInfo() {
387:                    return request.getPathInfo();
388:                }
389:
390:                public String getPathTranslated() {
391:                    return request.getPathTranslated();
392:                }
393:
394:                public String getContextPath() {
395:                    return request.getContextPath();
396:                }
397:
398:                public String getQueryString() {
399:                    return request.getQueryString();
400:                }
401:
402:                public String getRemoteUser() {
403:                    return request.getRemoteUser();
404:                }
405:
406:                public boolean isUserInRole(String s) {
407:                    return request.isUserInRole(s);
408:                }
409:
410:                public String getRequestedSessionId() {
411:                    return request.getRequestedSessionId();
412:                }
413:
414:                public String getRequestURI() {
415:                    return request.getRequestURI();
416:                }
417:
418:                public String getServletPath() {
419:                    return request.getServletPath();
420:                }
421:
422:                public boolean isRequestedSessionIdValid() {
423:                    return request.isRequestedSessionIdValid();
424:                }
425:
426:                public boolean isRequestedSessionIdFromCookie() {
427:                    return request.isRequestedSessionIdFromCookie();
428:                }
429:
430:                public Object getAttribute(String s) {
431:                    return request.getAttribute(s);
432:                }
433:
434:                public Enumeration getAttributeNames() {
435:                    return request.getAttributeNames();
436:                }
437:
438:                public String getCharacterEncoding() {
439:                    return request.getCharacterEncoding();
440:                }
441:
442:                public int getContentLength() {
443:                    return request.getContentLength();
444:                }
445:
446:                public String getContentType() {
447:                    return request.getContentType();
448:                }
449:
450:                public String getParameter(String s) {
451:                    return request.getParameter(s);
452:                }
453:
454:                public Enumeration getParameterNames() {
455:                    return request.getParameterNames();
456:                }
457:
458:                public String[] getParameterValues(String s) {
459:                    return request.getParameterValues(s);
460:                }
461:
462:                public String getProtocol() {
463:                    return request.getProtocol();
464:                }
465:
466:                public String getScheme() {
467:                    return request.getScheme();
468:                }
469:
470:                public String getServerName() {
471:                    return request.getServerName();
472:                }
473:
474:                public int getServerPort() {
475:                    return request.getServerPort();
476:                }
477:
478:                public String getRemoteAddr() {
479:                    return request.getRemoteAddr();
480:                }
481:
482:                public String getRemoteHost() {
483:                    return request.getRemoteHost();
484:                }
485:
486:                public void setAttribute(String s, Object obj) {
487:                    request.setAttribute(s, obj);
488:                }
489:
490:                public void removeAttribute(String s) {
491:                    request.removeAttribute(s);
492:                }
493:
494:                public boolean isSecure() {
495:                    return request.isSecure();
496:                }
497:
498:                public StringBuffer getRequestURL() {
499:                    return null;
500:                }
501:
502:                public Map getParameterMap() {
503:                    return null;
504:                }
505:
506:                public void setCharacterEncoding(String s) {
507:                }
508:
509:                public Principal getUserPrincipal() {
510:                    return request.getUserPrincipal();
511:                }
512:
513:                public Locale getLocale() {
514:                    return request.getLocale();
515:                }
516:
517:                public Enumeration getLocales() {
518:                    return request.getLocales();
519:                }
520:
521:                /** @deprecated use {@link org.apache.cocoon.components.deli.DeliImpl.CocoonServletContext#getRealPath(java.lang.String)} instead. */
522:                public String getRealPath(String s) {
523:                    return null;
524:                }
525:
526:                public Cookie[] getCookies() {
527:                    return null;
528:                }
529:
530:                public RequestDispatcher getRequestDispatcher(String s) {
531:                    return null;
532:                }
533:
534:                public BufferedReader getReader() throws IOException {
535:                    return null;
536:                }
537:
538:                public ServletInputStream getInputStream() throws IOException {
539:                    return null;
540:                }
541:
542:                public HttpSession getSession(boolean flag) {
543:                    return null;
544:                }
545:
546:                public HttpSession getSession() {
547:                    return null;
548:                }
549:
550:                public boolean isRequestedSessionIdFromURL() {
551:                    return false;
552:                }
553:
554:                /** @deprecated use {@link #isRequestedSessionIdFromURL()} instead */
555:                public boolean isRequestedSessionIdFromUrl() {
556:                    return false;
557:                }
558:
559:                public int getIntHeader(String s) {
560:                    return 0;
561:                }
562:            }
563:
564:        }
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