Java tutorial
/* * Copyright (C) 2003-2008 eXo Platform SAS. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see<http://www.gnu.org/licenses/>. */ package org.exoplatform.services.wcm.javascript; import java.util.HashSet; import java.util.List; import java.util.Set; import javax.jcr.Node; import javax.jcr.NodeIterator; import javax.jcr.PathNotFoundException; import javax.jcr.RepositoryException; import javax.jcr.Session; import javax.jcr.ValueFormatException; import javax.jcr.query.Query; import javax.jcr.query.QueryManager; import javax.jcr.query.QueryResult; import javax.servlet.ServletContext; import org.apache.commons.lang.StringUtils; import org.exoplatform.services.jcr.RepositoryService; import org.exoplatform.services.jcr.core.ManageableRepository; import org.exoplatform.services.jcr.ext.common.SessionProvider; import org.exoplatform.services.log.ExoLogger; import org.exoplatform.services.log.Log; import org.exoplatform.services.wcm.core.NodeLocation; import org.exoplatform.services.wcm.core.NodetypeConstant; import org.exoplatform.services.wcm.core.WCMConfigurationService; import org.exoplatform.services.wcm.portal.LivePortalManagerService; import org.exoplatform.services.wcm.utils.WCMCoreUtils; import org.exoplatform.web.application.javascript.JavascriptConfigService; import org.picocontainer.Startable; /** * Created by The eXo Platform SAS * Author : Hoa.Pham * hoa.pham@exoplatform.com * Apr 9, 2008 */ public class XJavascriptService implements Startable { private static String WEBCONTENT_JS_QUERY = "select * from exo:jsFile " + "where jcr:path like '{path}/%' and exo:active='true' " + "order by exo:priority ASC"; /** The MODUL e_ name. */ final private String MODULE_NAME = "eXo.WCM.Live"; public final static String JS_PATH_REGEXP = "/(.*)/javascript/eXo/(.*)/live"; /** The PATH. */ final private String PATH = "/javascript/eXo/{portalName}/live"; /** The js config service. */ private JavascriptConfigService jsConfigService; /** The configuration service. */ private WCMConfigurationService configurationService; private LivePortalManagerService livePortalManagerService_; /** The servlet context. */ private ServletContext servletContext; /** The log. */ private static final Log LOG = ExoLogger.getLogger(XJavascriptService.class.getName()); private Set<String> loadedJSModule = new HashSet<String>(); private Set<String> loadedSharedJSModule = new HashSet<String>(); /** * Instantiates a new x javascript service. * * @param repositoryService the repository service * @param jsConfigService the js config service * @param servletContext the servlet context * @param configurationService the configuration service * @param contentInitializerService the content initializer service * * @throws Exception the exception */ public XJavascriptService(LivePortalManagerService livePortalService) throws Exception { this.livePortalManagerService_ = livePortalService; this.jsConfigService = WCMCoreUtils.getService(JavascriptConfigService.class); this.jsConfigService .addResourceResolver(new WCMJavascriptResourceResolver(livePortalManagerService_, jsConfigService)); this.configurationService = WCMCoreUtils.getService(WCMConfigurationService.class); this.servletContext = WCMCoreUtils.getService(ServletContext.class); } /** * Get active java script. * * @param webcontent the webcontent's node * @return Code of all js file in home node. * @throws Exception the exception */ public String getActiveJavaScript(Node webcontent) throws Exception { StringBuffer buffer = new StringBuffer(); String jsQuery = StringUtils.replaceOnce(WEBCONTENT_JS_QUERY, "{path}", webcontent.getPath()); // Need re-login to get session because this node is get from template and the session is not live anymore. NodeLocation webcontentLocation = NodeLocation.getNodeLocationByNode(webcontent); RepositoryService repositoryService = WCMCoreUtils.getService(RepositoryService.class); ManageableRepository repository = repositoryService.getCurrentRepository(); Session session = null; if (webcontentLocation.getPath().startsWith("/jcr:system")) session = repository.getSystemSession(repository.getConfiguration().getSystemWorkspaceName()); else { session = repository.getSystemSession(webcontentLocation.getWorkspace()); } QueryManager queryManager = session.getWorkspace().getQueryManager(); Query query = queryManager.createQuery(jsQuery, Query.SQL); QueryResult queryResult = query.execute(); NodeIterator iterator = queryResult.getNodes(); while (iterator.hasNext()) { Node registeredJSFile = iterator.nextNode(); buffer.append(getActivedJSData(registeredJSFile)); } session.logout(); return buffer.toString(); } /** * Update and merged all Java Script in all portal when content of js file is modified. * * @param jsFile the js file * @param sessionProvider the session provider * * @throws Exception the exception */ public void updatePortalJSOnModify(Node portalNode, Node jsFile) throws Exception { String sharedPortalName = configurationService.getSharedPortalName(); if (sharedPortalName.equals(portalNode.getName())) { addSharedPortalJavascript(portalNode, jsFile, false); } else { addPortalJavascript(portalNode, jsFile, false); } } /** * Update and merged all Java Script in all portal when content of js file is modified. * * @param jsFile the js file * @param sessionProvider the session provider * * @throws Exception the exception */ public void updatePortalJSOnRemove(Node portalNode, Node jsFile) throws Exception { String sharedPortalName = configurationService.getSharedPortalName(); if (sharedPortalName.equals(portalNode.getName())) { addSharedPortalJavascript(portalNode, jsFile, false); } else { addPortalJavascript(portalNode, jsFile, false); } } /** * Adds the javascript. * * @param jsData the js data */ private void addPortalJavascript(Node portalNode, Node jsFile, boolean isStartup) throws Exception { String javascriptPath = StringUtils.replaceOnce(PATH, "{portalName}", portalNode.getName()); String moduleName = MODULE_NAME + '.' + portalNode.getName(); // jsConfigService.invalidateCachedJScript("/" + servletContext.getServletContextName() + // javascriptPath); if (!loadedJSModule.contains(moduleName)) { loadedJSModule.add(moduleName); // jsConfigService.addPortalJScript( // new PortalJScript(moduleName, javascriptPath,"/" + servletContext.getServletContextName(), // 10, portalNode.getName())); } } /** * Adds the javascript. * * @param jsData the js data */ private void addSharedPortalJavascript(Node portalNode, Node jsFile, boolean isStartup) throws Exception { String javascriptPath = StringUtils.replaceOnce(PATH, "{portalName}", portalNode.getName()); String moduleName = MODULE_NAME + '.' + portalNode.getName(); // jsConfigService.invalidateMergedCommonJScripts(); // jsConfigService.invalidateCachedJScript("/" + servletContext.getServletContextName() + // javascriptPath); if (!loadedSharedJSModule.contains(moduleName)) { loadedSharedJSModule.add(moduleName); // jsConfigService.addCommonJScript( // new Javascript(moduleName, javascriptPath,"/" + servletContext.getServletContextName(), 10)); } } private String getActivedJSData(Node jsFile) throws ValueFormatException, RepositoryException, PathNotFoundException { if (jsFile != null && !jsFile.isNodeType("exo:restoreLocation") && jsFile.hasNode(NodetypeConstant.JCR_CONTENT) && jsFile.getNode(NodetypeConstant.JCR_CONTENT).hasProperty(NodetypeConstant.JCR_DATA) && jsFile.hasProperty(NodetypeConstant.EXO_ACTIVE) && jsFile.getProperty(NodetypeConstant.EXO_ACTIVE).getBoolean() == true) { return jsFile.getNode(NodetypeConstant.JCR_CONTENT).getProperty(NodetypeConstant.JCR_DATA).getString(); } return ""; } /* (non-Javadoc) * @see org.picocontainer.Startable#start() */ public void start() { SessionProvider sessionProvider = SessionProvider.createSystemProvider(); try { LivePortalManagerService livePortalManagerService = WCMCoreUtils .getService(LivePortalManagerService.class); List<Node> livePortals = livePortalManagerService.getLivePortals(sessionProvider); for (Node portal : livePortals) { addPortalJavascript(portal, null, true); } Node sharedPortal = livePortalManagerService.getLiveSharedPortal(sessionProvider); addSharedPortalJavascript(sharedPortal, null, true); } catch (PathNotFoundException e) { if (LOG.isWarnEnabled()) { LOG.warn("Exception when merging inside Portal : WCM init is not completed."); } } catch (Exception e) { if (LOG.isErrorEnabled()) { LOG.error("Exception when start XJavascriptService"); } } finally { sessionProvider.close(); } } /* (non-Javadoc) * @see org.picocontainer.Startable#stop() */ public void stop() { } }