Source Code Cross Referenced for JspServletEnvironment.java in  » Portal » Open-Portal » com » sun » portal » providers » jsp » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Portal » Open Portal » com.sun.portal.providers.jsp 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* 
002:         * Copyright 2001 Sun Microsystems, Inc.  All rights reserved. 
003:         * PROPRIETARY/CONFIDENTIAL.  Use of this product is subject to license terms. 
004:         */
005:        package com.sun.portal.providers.jsp;
006:
007:        import java.io.InputStream;
008:        import java.io.IOException;
009:        import java.io.File;
010:
011:        import java.net.URL;
012:        import java.net.URLConnection;
013:        import java.net.FileNameMap;
014:        import java.net.MalformedURLException;
015:
016:        import java.util.Collections;
017:        import java.util.Enumeration;
018:        import java.util.Hashtable;
019:        import java.util.Vector;
020:        import java.util.Set;
021:        import java.util.logging.Logger;
022:        import java.util.logging.Level;
023:        import java.util.logging.LogRecord;
024:
025:        import javax.servlet.Servlet;
026:        import javax.servlet.ServletException;
027:        import javax.servlet.ServletContext;
028:        import javax.servlet.ServletConfig;
029:        import javax.servlet.RequestDispatcher;
030:
031:        import com.sun.portal.providers.jsp.jasper3.jasper.EmbededServletOptions;
032:
033:        import com.sun.portal.providers.ProviderAdapter;
034:        import com.sun.portal.providers.ProviderException;
035:        import com.sun.portal.providers.context.ProviderContext;
036:        import com.sun.portal.providers.context.ProviderContextException;
037:
038:        import com.sun.portal.desktop.context.ProviderContextThreadLocalizer;
039:        import com.sun.portal.desktop.context.ContextException;
040:
041:        import com.sun.portal.desktop.DesktopServlet;
042:        import com.sun.portal.desktop.DesktopRequestThreadLocalizer;
043:        import com.sun.portal.log.common.PortalLogger;
044:
045:        /*
046:         * The JspServletEnvironment represents the environment in which the
047:         * JSP is compiled and run.  It is responsible for implementing the
048:         * search algorithm for JSP files as well as the rest of the methods
049:         * for the ServletContext and ServletConfig interfaces.
050:         **/
051:        class JspServletEnvironment implements  ServletContext, ServletConfig {
052:            Hashtable attributes = new Hashtable();
053:            Hashtable initArgs = new Hashtable();
054:            //ProviderAdapter provider = new ProviderAdapter();
055:            EmbededServletOptions options;
056:            String desktopType;
057:            String locale;
058:            String channelName;
059:            String clientPath;
060:            JSPProvider jspProvider;
061:            private static Logger logger = PortalLogger
062:                    .getLogger(JspServletEnvironment.class);
063:
064:            public JspServletEnvironment(JSPProvider jspProvider,
065:                    String channelName, String scratchdir, String desktopType,
066:                    String locale, String clientPath, String classPath) {
067:                this .channelName = channelName;
068:                this .desktopType = desktopType;
069:                this .locale = locale;
070:                this .clientPath = clientPath;
071:                this .jspProvider = jspProvider;
072:
073:                initArgs.put("scratchdir", scratchdir);
074:                initArgs.put("classpath", classPath);
075:
076:                options = new EmbededServletOptions(this , this );
077:            }
078:
079:            public EmbededServletOptions getOptions() {
080:                return options;
081:            }
082:
083:            public Object getAttribute(String name) {
084:                if (name
085:                        .equals("com.sun.portal.providers.jsp.jasper3.tomcat.jsp_classpath"))
086:                    return options.getClassPath();
087:                else if (name
088:                        .equals("com.sun.portal.providers.jsp.jasper3.tomcat.classloader")) {
089:                    return this .getClass().getClassLoader();
090:                } else {
091:                    return attributes.get(name);
092:                }
093:            }
094:
095:            public Enumeration getAttributeNames() {
096:                return attributes.keys();
097:            }
098:
099:            public void setAttribute(String name, Object object) {
100:                attributes.put(name, object);
101:            }
102:
103:            public void removeAttribute(String name) {
104:                attributes.remove(name);
105:            }
106:
107:            public ServletContext getContext(String path) {
108:                throw new IllegalArgumentException(
109:                        "ServletContextImpl.getContext not supported");
110:            }
111:
112:            public int getMajorVersion() {
113:                return 1;
114:            }
115:
116:            public int getMinorVersion() {
117:                return 1;
118:            }
119:
120:            public String getMimeType(String filename) {
121:                FileNameMap fnm = URLConnection.getFileNameMap();
122:                return fnm.getContentTypeFor(filename);
123:            }
124:
125:            public String getRealPath(String path) {
126:                String realPath = null;
127:
128:                // seperate uri and query string
129:                //
130:                int index = path.indexOf('?');
131:                String uri = path;
132:                ProviderContext providerContext = ProviderContextThreadLocalizer
133:                        .get();
134:
135:                if (index != -1) {
136:                    uri = path.substring(0, index);
137:                }
138:
139:                try {
140:                    URL url = getResource(uri);
141:                    if (url != null
142:                            && url.getProtocol().equalsIgnoreCase("file")) {
143:                        // take care of File.getAbsolutePath() troubles on
144:                        // jdk1.1.x/win
145:
146:                        //mjm realPath = JspFileUtil.patch(url.getFile());
147:                        realPath = url.getFile();
148:                    }
149:                } catch (Exception e) {
150:                    if (logger.isLoggable(Level.INFO)) {
151:                        LogRecord record = new LogRecord(Level.INFO,
152:                                "PSDT_CSPPJ0016");
153:                        record.setLoggerName(logger.getName());
154:                        record.setParameters(new Object[] { path });
155:                        record.setThrown(e);
156:                        logger.log(record);
157:                    }
158:                }
159:                return realPath;
160:            }
161:
162:            public InputStream getResourceAsStream(String path) {
163:                InputStream is = null;
164:
165:                try {
166:                    URL url = getResource(path);
167:                    URLConnection con = url.openConnection();
168:
169:                    con.connect();
170:
171:                    is = con.getInputStream();
172:                } catch (MalformedURLException e) {
173:                    if (logger.isLoggable(Level.FINEST)) {
174:                        LogRecord record = new LogRecord(Level.FINEST,
175:                                "PSDT_CSPPJ0017");
176:                        record.setLoggerName(logger.getName());
177:                        record.setParameters(new Object[] { path });
178:                        record.setThrown(e);
179:                        logger.log(record);
180:                    }
181:                } catch (IOException e) {
182:                    if (logger.isLoggable(Level.FINEST)) {
183:                        LogRecord record = new LogRecord(Level.FINEST,
184:                                "PSDT_CSPPJ0017");
185:                        record.setLoggerName(logger.getName());
186:                        record.setParameters(new Object[] { path });
187:                        record.setThrown(e);
188:                        logger.log(record);
189:                    }
190:                }
191:
192:                return is;
193:            }
194:
195:            public URL getResource(String path) throws MalformedURLException {
196:                if (path == null) {
197:                    logger.finest("PSDT_CSPPJ0018");
198:                    throw new NullPointerException(
199:                            "null path passed to getResource");
200:                }
201:
202:                // JSPProvider does not support web.xml.  Returns null to indicate that
203:                // such resource is not available.  See bug 4631056.
204:
205:                if (path.equals("/WEB-INF/web.xml")) {
206:                    return null;
207:                }
208:
209:                // build search path for JSP files
210:                //
211:                //	desktopType_locale/channelName/clientPath
212:                //      desktopType_locale/channelName
213:                //	desktopType_locale
214:                //	desktopType/channelName/clientPath
215:                //	desktopType/channelName
216:                //	desktopType
217:                //	default_locale/channelName/clientPath
218:                //	default_locale/channelName
219:                //	default_locale
220:                //	default/channelName/clientPath
221:                //	default/channelName
222:                //	default
223:                //
224:                //changed to use FileLookup API.
225:
226:                ProviderContext providerContext = ProviderContextThreadLocalizer
227:                        .get();
228:                File jspFileHandle = null;
229:                try {
230:                    jspFileHandle = jspProvider.getExistingJSPPath(
231:                            providerContext, channelName, path);
232:                } catch (ProviderException pc) {
233:                    if (logger.isLoggable(Level.FINEST)) {
234:                        LogRecord record = new LogRecord(Level.FINEST,
235:                                "PSDT_CSPPJ0012");
236:                        record.setLoggerName(logger.getName());
237:                        record
238:                                .setParameters(new Object[] { channelName, path });
239:                        record.setThrown(pc);
240:                        logger.log(record);
241:                    }
242:                    throw new MalformedURLException(
243:                            "JspServletEnvironment.getResource(): ");
244:                }
245:
246:                if (jspFileHandle == null) {
247:                    if (logger.isLoggable(Level.FINEST)) {
248:                        LogRecord record = new LogRecord(Level.FINEST,
249:                                "PSDT_CSPPJ0019");
250:                        record.setLoggerName(logger.getName());
251:                        record
252:                                .setParameters(new Object[] { channelName, path });
253:                        logger.log(record);
254:                    }
255:                    throw new MalformedURLException(
256:                            "JspServletEnvironment.getResource(): not found for channelName="
257:                                    + channelName + ", path=" + path);
258:                }
259:                return jspFileHandle.toURL();
260:            }
261:
262:            public RequestDispatcher getRequestDispatcher(String path) {
263:                if (path == null || !path.startsWith("/")) {
264:                    if (logger.isLoggable(Level.FINEST)) {
265:                        LogRecord record = new LogRecord(Level.FINEST,
266:                                "PSDT_CSPPJ0020");
267:                        record.setLoggerName(logger.getName());
268:                        record.setParameters(new Object[] { path });
269:                        logger.log(record);
270:                    }
271:                    throw new IllegalArgumentException(
272:                            "getRequestDispatcher bad path");
273:                }
274:
275:                return new JspRequestDispatcher(path, this );
276:            }
277:
278:            public RequestDispatcher getNamedDispatcher(String name) {
279:                return null;
280:            }
281:
282:            public String getServerInfo() {
283:                return "JSPProvider";
284:            }
285:
286:            public void log(String msg) {
287:                /*
288:                ProviderContext providerContext = ProviderContextThreadLocalizer.get();
289:                if ( providerContext.isDebugMessageEnabled() ) {
290:                    providerContext.debugMessage(msg);
291:                }
292:                 */
293:            }
294:
295:            public String getInitParameter(String name) {
296:                if (name.equals("staticContext")) {
297:                    String sContent = DesktopRequestThreadLocalizer
298:                            .getRequest().getContextPath();
299:                    return sContent;
300:                } else {
301:                    return (String) initArgs.get(name);
302:                }
303:            }
304:
305:            public Enumeration getInitParameterNames() {
306:                return initArgs.keys();
307:            }
308:
309:            public void log(String msg, Throwable t) {
310:                logger.log(Level.INFO, msg, t);
311:            }
312:
313:            /**
314:             * methods added for Servlet 2.3 
315:             */
316:            public String getServletContextName() {
317:                return "JSPProvider";
318:            }
319:
320:            public Set getResourcePaths(String path) {
321:                Set s = Collections.singleton(path);
322:                return s;
323:            }
324:
325:            /**
326:             *
327:             * @deprecated This method is deprecated in the
328:             *             javax.servlet.ServletContext interface
329:             */
330:
331:            public void log(Exception e, String msg) {
332:                log(msg, e);
333:            }
334:
335:            /**
336:             *
337:             * @deprecated This method is deprecated in the
338:             *             javax.servlet.ServletContext interface
339:             */
340:
341:            public Servlet getServlet(String name) throws ServletException {
342:                return null;
343:            }
344:
345:            /**
346:             * This method has been deprecated in the public api and always
347:             * return an empty enumeration.
348:             *
349:             * @deprecated
350:             */
351:
352:            public Enumeration getServlets() {
353:                // silly hack to get an empty enumeration
354:                Vector v = new Vector();
355:                return v.elements();
356:            }
357:
358:            /**
359:             * This method has been deprecated in the public api and always
360:             * return an empty enumeration.
361:             *
362:             * @deprecated
363:             */
364:
365:            public Enumeration getServletNames() {
366:                // silly hack to get an empty enumeration
367:                Vector v = new Vector();
368:                return v.elements();
369:            }
370:
371:            /*
372:             * ServletConfig methods
373:             */
374:            public ServletContext getServletContext() {
375:                return this ;
376:            }
377:
378:            public String getServletName() {
379:                return "JSPProvider";
380:            }
381:        }
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