Source Code Cross Referenced for JspParserImpl.java in  » IDE-Netbeans » web.core » org » netbeans » modules » web » jspparser » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » web.core » org.netbeans.modules.web.jspparser 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003:         *
004:         * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005:         *
006:         * The contents of this file are subject to the terms of either the GNU
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2008 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.modules.web.jspparser;
043:
044:        import java.io.File;
045:        import java.io.IOException;
046:        import java.lang.reflect.Constructor;
047:        import java.lang.reflect.InvocationTargetException;
048:        import java.net.MalformedURLException;
049:        import java.net.URL;
050:        import java.net.URLClassLoader;
051:        import java.security.AllPermission;
052:        import java.security.CodeSource;
053:        import java.security.PermissionCollection;
054:        import java.util.Map;
055:        import java.util.WeakHashMap;
056:        import java.util.logging.Level;
057:        import java.util.logging.Logger;
058:        import org.netbeans.modules.web.api.webmodule.WebModule;
059:        import org.netbeans.modules.web.jsps.parserapi.TldChangeListener;
060:        import org.netbeans.modules.web.jsps.parserapi.JspParserAPI;
061:
062:        import org.openide.filesystems.FileObject;
063:        import org.openide.modules.InstalledFileLocator;
064:        import org.openide.util.NbBundle;
065:
066:        // PENDING - need to call reinitOptions when something changes (taglib, jar, web.xml)
067:        // PENDING - separate to two classes, have a per-application instance of one of them
068:
069:        /**
070:         * @author Petr Jiricka
071:         */
072:        public class JspParserImpl implements  JspParserAPI {
073:
074:            // @GuardedBy(this)
075:            final Map<WebModule, WebAppParseProxy> parseSupports = new WeakHashMap<WebModule, WebAppParseProxy>();
076:            private final TldChangeSupport tldChangeSupport;
077:
078:            private static final Logger LOGGER = Logger
079:                    .getLogger(JspParserImpl.class.getName());
080:            private static Constructor webAppParserImplConstructor;
081:
082:            private static final JspParserAPI.JspOpenInfo DEFAULT_OPENINFO = new JspParserAPI.JspOpenInfo(
083:                    false, "ISO-8859-1"); // NOI18N
084:
085:            /** Constructs a new Parser API implementation.
086:             */
087:            public JspParserImpl() {
088:                // PENDING - we are preventing the garbage collection of
089:                // Project-s and FileObject-s (wmRoots)
090:                tldChangeSupport = new TldChangeSupport(this );
091:            }
092:
093:            private static void initReflection() {
094:                if (webAppParserImplConstructor == null) {
095:                    File[] files = new File[5];
096:                    files[0] = InstalledFileLocator.getDefault().locate(
097:                            "ant/lib/ant.jar", null, false); // NOI18N
098:                    files[1] = InstalledFileLocator.getDefault().locate(
099:                            "modules/ext/glassfish-jspparser-2.0.jar", null,
100:                            false); // NOI18N
101:                    //files[2] = InstalledFileLocator.getDefault().locate("modules/ext/glassfish-logging.jar", null, false); // NOI18N
102:                    files[2] = InstalledFileLocator.getDefault().locate(
103:                            "modules/ext/jsp-parser-ext.jar", null, false); // NOI18N
104:                    files[3] = InstalledFileLocator.getDefault().locate(
105:                            "modules/ext/servlet2.5-jsp2.1-api.jar", null,
106:                            false); // NOI18N
107:                    //Glassfish V2
108:                    files[4] = InstalledFileLocator.getDefault().locate(
109:                            "ant/lib/ant-launcher.jar", null, false); // NOI18N
110:
111:                    try {
112:                        URL[] urls = new URL[files.length];
113:                        for (int i = 0; i < files.length; i++) {
114:                            urls[i] = files[i].toURI().toURL();
115:                        }
116:                        ExtClassLoader urlCL = new ExtClassLoader(urls,
117:                                JspParserImpl.class.getClassLoader());
118:                        Class<?> cl = urlCL
119:                                .loadClass("org.netbeans.modules.web.jspparser_ext.WebAppParseSupport"); // NOI18N
120:                        webAppParserImplConstructor = cl
121:                                .getDeclaredConstructor(new Class[] {
122:                                        JspParserImpl.class, WebModule.class });
123:                    } catch (NoSuchMethodException e) {
124:                        LOGGER.log(Level.INFO, null, e);
125:                    } catch (MalformedURLException e) {
126:                        LOGGER.log(Level.INFO, null, e);
127:                    } catch (ClassNotFoundException e) {
128:                        LOGGER.log(Level.INFO, null, e);
129:                    }
130:                }
131:            }
132:
133:            public JspParserAPI.JspOpenInfo getJspOpenInfo(FileObject jspFile,
134:                    WebModule wm, boolean useEditor) {
135:                //try to fast create openinfo
136:
137:                //detects encoding even if there is not webmodule (null) or deployment descriptor doesn't exist
138:                FastOpenInfoParser fastOIP = FastOpenInfoParser.get(wm);
139:                if (fastOIP != null) {
140:                    JspParserAPI.JspOpenInfo jspOI = fastOIP.getJspOpenInfo(
141:                            jspFile, useEditor);
142:                    if (jspOI != null) {
143:                        return jspOI;
144:                    }
145:                }
146:
147:                //no encoding found in the file or the deployment descriptor contains encoding declarations
148:                if (wm != null) {
149:                    FileObject wmRoot = wm.getDocumentBase();
150:                    if (wmRoot != null) {
151:                        WebAppParseProxy pp = getParseProxy(wm);
152:                        if (pp != null) {
153:                            return pp.getJspOpenInfo(jspFile, useEditor);
154:                        }
155:                    }
156:                }
157:                return DEFAULT_OPENINFO;
158:            }
159:
160:            public JspParserAPI.ParseResult analyzePage(FileObject jspFile,
161:                    WebModule wm, int errorReportingMode) {
162:                if (wm == null) {
163:                    return getNoWebModuleResult(jspFile, null);
164:                }
165:                FileObject wmRoot = wm.getDocumentBase();
166:                if (wmRoot == null) {
167:                    return getNoWebModuleResult(jspFile, wm);
168:                }
169:                WebAppParseProxy pp = getParseProxy(wm);
170:                if (pp == null) {
171:                    return getNoWebModuleResult(jspFile, wm);
172:                }
173:                return pp.analyzePage(jspFile, errorReportingMode);
174:            }
175:
176:            /**
177:             * Returns the mapping of the 'global' tag library URI to the location (resource
178:             * path) of the TLD associated with that tag library.
179:             * @param wmRoot the web module for which to return the map
180:             * @return Map which maps global tag library URI to the location
181:             * (resource path) of its tld. The location is
182:             * returned as a String array:
183:             *    [0] The location
184:             *    [1] If the location is a jar file, this is the location of the tld.
185:             */
186:            public Map<String, String[]> getTaglibMap(WebModule wm)
187:                    throws IOException {
188:                FileObject wmRoot = wm.getDocumentBase();
189:                if (wmRoot == null) {
190:                    throw new IOException();
191:                }
192:                WebAppParseProxy pp = getParseProxy(wm);
193:                return pp.getTaglibMap(true);
194:            }
195:
196:            private synchronized WebAppParseProxy getParseProxy(WebModule wm) {
197:                WebAppParseProxy pp = parseSupports.get(wm);
198:                // #67785 - the document root fileobject has to be valid
199:                FileObject wmRoot = wm.getDocumentBase();
200:                if (!wmRoot.isValid()) {
201:                    pp = null;
202:                }
203:                if (pp == null) {
204:                    pp = createParseProxy(wm);
205:                    parseSupports.put(wm, pp);
206:                }
207:                return pp;
208:            }
209:
210:            private WebAppParseProxy createParseProxy(WebModule wm) {
211:                // PENDING - do caching for individual JSPs
212:                try {
213:                    initReflection();
214:                    return (WebAppParseProxy) webAppParserImplConstructor
215:                            .newInstance(new Object[] { this , wm });
216:                } catch (IllegalAccessException e) {
217:                    LOGGER.log(Level.INFO, null, e);
218:                } catch (InstantiationException e) {
219:                    LOGGER.log(Level.INFO, null, e);
220:                } catch (InvocationTargetException e) {
221:                    LOGGER.log(Level.INFO, null, e);
222:                }
223:                return null;
224:            }
225:
226:            public URLClassLoader getModuleClassLoader(WebModule wm) {
227:                WebAppParseProxy pp = getParseProxy(wm);
228:                return pp.getWAClassLoader();
229:            }
230:
231:            private JspParserAPI.ParseResult getNoWebModuleResult(
232:                    FileObject jspFile, WebModule wm) {
233:                JspParserAPI.ErrorDescriptor error = new JspParserAPI.ErrorDescriptor(
234:                        null, jspFile, -1, -1, NbBundle.getMessage(
235:                                JspParserImpl.class, "MSG_webModuleNotFound",
236:                                jspFile.getNameExt()), ""); // NOI18N
237:                return new JspParserAPI.ParseResult(
238:                        new JspParserAPI.ErrorDescriptor[] { error });
239:            }
240:
241:            public void addTldChangeListener(TldChangeListener listener) {
242:                tldChangeSupport.addTldChangeListener(listener);
243:            }
244:
245:            public void removeTldChangeListener(TldChangeListener listener) {
246:                tldChangeSupport.removeTldChangeListener(listener);
247:            }
248:
249:            public void fireChange(WebModule webModule) {
250:                tldChangeSupport.fireChange(webModule);
251:            }
252:
253:            private static class ExtClassLoader extends URLClassLoader {
254:
255:                private static final AllPermission ALL_PERM = new AllPermission();
256:
257:                public ExtClassLoader(URL[] classLoadingURLs, ClassLoader parent) {
258:                    super (classLoadingURLs, parent);
259:                }
260:
261:                @Override
262:                protected PermissionCollection getPermissions(
263:                        CodeSource codesource) {
264:                    PermissionCollection perms = super 
265:                            .getPermissions(codesource);
266:                    perms.add(ALL_PERM);
267:                    return perms;
268:                }
269:
270:                @Override
271:                protected synchronized Class<?> loadClass(String name,
272:                        boolean resolve) throws ClassNotFoundException {
273:                    // this is because debugger adds ant on cp but this classloader needs ant as well
274:                    //  - so let this class loader find the class
275:                    if (name.startsWith("org.apache.tools.ant.")) { // NOI18N
276:                        Class<?> clazz = findClass(name);
277:                        return clazz;
278:                    }
279:                    return super.loadClass(name, resolve);
280:                }
281:            }
282:        }
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