Java tutorial
/* * Copyright (C) 2003-2007 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.cms.impl; import java.io.ByteArrayInputStream; import java.io.InputStream; import java.util.Collection; import java.util.GregorianCalendar; import java.util.List; import javax.jcr.Node; import javax.jcr.NodeIterator; import javax.jcr.PathNotFoundException; import javax.jcr.Session; import javax.jcr.nodetype.NodeType; import javax.jcr.nodetype.PropertyDefinition; import org.apache.commons.lang.StringUtils; import org.exoplatform.container.configuration.ConfigurationManager; import org.exoplatform.services.cache.CacheService; import org.exoplatform.services.cache.ExoCache; import org.exoplatform.services.cms.actions.ActionServiceContainer; import org.exoplatform.services.cms.scripts.CmsScript; 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.jcr.ext.hierarchy.NodeHierarchyCreator; import org.exoplatform.services.wcm.core.NodetypeConstant; import org.exoplatform.services.wcm.utils.WCMCoreUtils; import org.picocontainer.Startable; public abstract class BaseResourceLoaderService implements Startable { protected NodeHierarchyCreator nodeHierarchyCreator_; protected RepositoryService repositoryService_; protected ConfigurationManager cservice_; protected ExoCache<String, CmsScript> resourceCache_; /** * DMS configuration which used to store informations */ private DMSConfiguration dmsConfiguration_; /** * Constructor method * Init cservice, nodeHierarchyCreator, repositoryService, cacheService, dmsConfiguration * @param cservice ConfigurationManager * @param nodeHierarchyCreator NodeHierarchyCreator * @param repositoryService RepositoryService * @param cacheService CacheService * @param dmsConfiguration DMSConfiguration * @throws Exception */ public BaseResourceLoaderService(ConfigurationManager cservice, NodeHierarchyCreator nodeHierarchyCreator, RepositoryService repositoryService, CacheService cacheService, DMSConfiguration dmsConfiguration) throws Exception { nodeHierarchyCreator_ = nodeHierarchyCreator; repositoryService_ = repositoryService; cservice_ = cservice; resourceCache_ = cacheService.getCacheInstance(this.getClass().getName()); dmsConfiguration_ = dmsConfiguration; } /** * get BasePath * @return */ abstract protected String getBasePath(); /** * remove From Cache * @param resourceName String * The name of resource */ abstract protected void removeFromCache(String resourceName); /** * {@inheritDoc} */ public void start() { }; /** * {@inheritDoc} */ public void stop() { }; /** * init * @param session Session * @param resourceConfig ResourceConfig * @param location String * The code of location * @see Session * @see ResourceConfig * @throws Exception */ protected void init(Session session, ResourceConfig resourceConfig, String location) throws Exception { addScripts(session, resourceConfig.getRessources(), location); } /** * add Script with following param * @param session Session * @param resources List * @param location String * @see ResourceConfig * @throws Exception */ protected void addScripts(Session session, List<ResourceConfig.Resource> resources, String location) throws Exception { String resourcesPath = getBasePath(); if (resources.size() == 0) return; try { String firstResourceName = resources.get(0).getName(); session.getItem(resourcesPath + "/" + firstResourceName); return; } catch (PathNotFoundException e) { Node root = session.getRootNode(); Node resourcesHome = (Node) session.getItem(resourcesPath); String warPath = location + resourcesPath.substring(resourcesPath.lastIndexOf("/")); for (ResourceConfig.Resource resource : resources) { String name = resource.getName(); String description = resource.getDescription(); String path = warPath + "/" + name; InputStream in = cservice_.getInputStream(path); addResource(resourcesHome, name, description, in); } root.save(); } } /** * add Resource * @param resourcesHome Node * @param resourceName String * @param in InputStream * @throws Exception */ public void addResource(Node resourcesHome, String resourceName, InputStream in) throws Exception { addResource(resourcesHome, resourceName, resourceName, in); } /** * add Resource * @param resourcesHome Node * @param resourceName String * @param in InputStream * @throws Exception */ public void addResource(Node resourcesHome, String resourceName, String resourceDescription, InputStream in) throws Exception { Node contentNode = null; if (resourceName.lastIndexOf("/") > -1) { String realParenPath = StringUtils.substringBeforeLast(resourceName, "/"); Node parentResource = resourcesHome.getNode(realParenPath); resourcesHome = parentResource; resourceName = StringUtils.substringAfterLast(resourceName, "/"); } try { Node script = resourcesHome.getNode(resourceName); contentNode = script.getNode(NodetypeConstant.JCR_CONTENT); if (!contentNode.isCheckedOut()) contentNode.checkout(); } catch (PathNotFoundException e) { Node script = resourcesHome.addNode(resourceName, NodetypeConstant.NT_FILE); contentNode = script.addNode(NodetypeConstant.JCR_CONTENT, NodetypeConstant.EXO_RESOURCES); contentNode.setProperty(NodetypeConstant.JCR_ENCODING, "UTF-8"); contentNode.setProperty(NodetypeConstant.JCR_MIME_TYPE, "application/x-groovy"); } contentNode.setProperty(NodetypeConstant.JCR_DATA, in); contentNode.setProperty(NodetypeConstant.DC_DESCRIPTION, new String[] { resourceDescription }); contentNode.setProperty(NodetypeConstant.JCR_LAST_MODIFIED, new GregorianCalendar()); resourcesHome.save(); } /** * get ResourcesHome * @param sessionProvider SessionProvider * @see SessionProvider * @see DMSRepositoryConfiguration * @see ManageableRepository * @return * @throws Exception */ protected Node getResourcesHome(SessionProvider sessionProvider) throws Exception { ManageableRepository manageableRepository = null; manageableRepository = repositoryService_.getCurrentRepository(); DMSRepositoryConfiguration dmsRepoConfig = dmsConfiguration_.getConfig(); Session session = sessionProvider.getSession(dmsRepoConfig.getSystemWorkspace(), manageableRepository); String resourcesPath = getBasePath(); return (Node) session.getItem(resourcesPath); } /** * get Resource As Text * @param resourceName String * @see * @return String * @throws Exception */ public String getResourceAsText(String resourceName) throws Exception { Node resourceNode = getResourceByName(resourceName); String text = resourceNode.getNode("jcr:content").getProperty("jcr:data").getString(); return text; } /** * get Resource By Name * @param resourceName String * @return Node * @throws Exception */ public Node getResourceByName(String resourceName) throws Exception { SessionProvider sessionProvider = WCMCoreUtils.getSystemSessionProvider(); Node resourcesHome = getResourcesHome(sessionProvider); return resourcesHome.getNode(resourceName); } /** * Get resource name from Node Type * @param nodeType * @return * @throws Exception */ public String getResourceNameByNodeType(NodeType nodeType) throws Exception { if (nodeType.isNodeType("exo:scriptAction")) { PropertyDefinition[] arrProperties = nodeType.getPropertyDefinitions(); for (PropertyDefinition property : arrProperties) { if (property.getName().equals("exo:script")) { return property.getDefaultValues()[0].getString(); } } } return StringUtils.EMPTY; } /** * Get NodeType by the given resource name * @param resourceName Name of resource * @return NodeType object * @throws Exception */ public NodeType getNodeTypeByResourceName(String resourceName) throws Exception { ActionServiceContainer actionsServiceContainer = WCMCoreUtils.getService(ActionServiceContainer.class); Collection<NodeType> actionList = actionsServiceContainer .getCreatedActionTypes(WCMCoreUtils.getRepository().getConfiguration().getName()); for (NodeType nodeType : actionList) { if (nodeType.isNodeType("exo:scriptAction")) { PropertyDefinition[] arrProperties = nodeType.getPropertyDefinitions(); for (PropertyDefinition property : arrProperties) { if (property.getName().equals("exo:script") && property.getDefaultValues()[0].getString().equals(resourceName)) { return nodeType; } } } } return null; } /** * get Resource Description * @param resourceName String * @see * @return String * @throws Exception */ public String getResourceDescription(String resourceName) throws Exception { Node resource = getResourceByName(resourceName); return resource.getNode(NodetypeConstant.JCR_CONTENT).getProperty(NodetypeConstant.DC_DESCRIPTION) .getValues()[0].getString(); } /** * get Resource As Stream * @param resourceName String * @see * @return SessionProvider * @throws Exception */ public InputStream getResourceAsStream(String resourceName) throws Exception { Node resourceNode = getResourceByName(resourceName); InputStream stream = resourceNode.getNode("jcr:content").getProperty("jcr:data").getStream(); return stream; } /** * get Resources * @param sessionProvider SessionProvider * @see SessionProvider * @return * @throws Exception */ public NodeIterator getResources(SessionProvider sessionProvider) throws Exception { Node resourcesHome = getResourcesHome(sessionProvider); return resourcesHome.getNodes(); } /** * Check has Resources * @param sessionProvider SessionProvider * @see SessionProvider * @return * @throws Exception */ public boolean hasResources(SessionProvider sessionProvider) throws Exception { Node resourcesHome = getResourcesHome(sessionProvider); return resourcesHome.hasNodes(); } /** * add Resource * @param name String * The name of resource * @param text String * @param provider SessionProvider * @see SessionProvider * @throws Exception */ public void addResource(String name, String text, SessionProvider provider) throws Exception { Node resourcesHome = getResourcesHome(provider); InputStream in = new ByteArrayInputStream(text.getBytes()); addResource(resourcesHome, name, in); resourcesHome.save(); } /** * remove Resource * @param resourceName String * The name of resource * @param provider SessionProvider * @see SessionProvider * @throws Exception */ public void removeResource(String resourceName, SessionProvider provider) throws Exception { removeFromCache(resourceName); Node resourcesHome = getResourcesHome(provider); Node resource2remove = resourcesHome.getNode(resourceName); resource2remove.remove(); resourcesHome.save(); } }