/* * Copyright (C) 2005-2006 Alfresco, Inc. * * Licensed under the Mozilla Public License version 1.1 * with a permitted attribution clause. You may obtain a * copy of the License at * * http://www.alfresco.org/legal/license.txt * * Unless required by applicable law or agreed to in writing, * software distributed under the License is distributed on an * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, * either express or implied. See the License for the specific * language governing permissions and limitations under the * License. */ package org.alfresco.filesys.server.pseudo; import java.util.Enumeration; import org.alfresco.filesys.alfresco.DesktopAction; import org.alfresco.filesys.alfresco.DesktopActionTable; import org.alfresco.filesys.server.SrvSession; import org.alfresco.filesys.server.filesys.FileName; import org.alfresco.filesys.server.filesys.TreeConnection; import org.alfresco.filesys.server.pseudo.MemoryPseudoFile; import org.alfresco.filesys.server.pseudo.PseudoFile; import org.alfresco.filesys.server.pseudo.PseudoFileInterface; import org.alfresco.filesys.server.state.FileState; import org.alfresco.filesys.smb.server.SMBSrvSession; import org.alfresco.filesys.smb.server.repo.ContentContext; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; /** * Alfresco Filesystem Driver Pseudo File Implementation * *

Pseudo file implementation for the Alfresco filesystem drivers. * * @author gkspencer */ public class PseudoFileImpl implements PseudoFileInterface { // Logging private static final Log logger = LogFactory.getLog(PseudoFileImpl.class); /** * Check if the specified path refers to a pseudo file * * @param sess SrvSession * @param tree TreeConnection * @param path String * @return boolean */ public boolean isPseudoFile(SrvSession sess, TreeConnection tree, String path) { // Check if the path is for a pseudo file ContentContext ctx = (ContentContext) tree.getContext(); boolean isPseudo = false; String[] paths = FileName.splitPath( path); FileState fstate = getStateForPath( ctx, paths[0]); if ( fstate != null && fstate.hasPseudoFiles()) { // Check if there is a matching pseudo file PseudoFile pfile = fstate.getPseudoFileList().findFile( paths[1], false); if ( pfile != null) isPseudo = true; } else { // Check if the file name matches a pseudo-file name in the desktop actions list if ( ctx.hasDesktopActions()) { DesktopActionTable actions = ctx.getDesktopActions(); if ( actions.getActionViaPseudoName( paths[1]) != null) isPseudo = true; } // Check if the URL file is enabled if ( isPseudo == false && ctx.hasURLFile()) { // Check if it is the URL file name if ( ctx.getURLFileName().equals( paths[1])) isPseudo = true; } } // Return the pseudo file status return isPseudo; } /** * Return the pseudo file for the specified path, or null if the path is not a pseudo file * * @param sess SrvSession * @param tree TreeConnection * @param path String * @return PseudoFile */ public PseudoFile getPseudoFile(SrvSession sess, TreeConnection tree, String path) { // Check if the path is for a pseudo file ContentContext ctx = (ContentContext) tree.getContext(); String[] paths = FileName.splitPath( path); FileState fstate = getStateForPath( ctx, paths[0]); if ( fstate != null && fstate.hasPseudoFiles()) { // Check if there is a matching pseudo file PseudoFile pfile = fstate.getPseudoFileList().findFile( paths[1], false); if ( pfile != null) return pfile; } // Not a pseudo file return null; } /** * Add pseudo files to a folder so that they appear in a folder search * * @param sess SrvSession * @param tree TreeConnection * @param path String * @return int */ public int addPseudoFilesToFolder(SrvSession sess, TreeConnection tree, String path) { // Access the device context int pseudoCnt = 0; ContentContext ctx = (ContentContext) tree.getContext(); FileState fstate = getStateForPath( ctx, path); // Check if pseudo files have already been added for this folder if ( fstate.hasPseudoFiles()) return 0; // Check if this is a CIFS session boolean isCIFS = sess instanceof SMBSrvSession; // Add the desktop action pseudo files if ( isCIFS && ctx.numberOfDesktopActions() > 0) { // If the file state is null create a file state for the path if ( fstate == null) ctx.getStateTable().findFileState( path, true, true); // Add the desktop action pseudo files DesktopActionTable actions = ctx.getDesktopActions(); Enumeration actionNames = actions.enumerateActionNames(); while(actionNames.hasMoreElements()) { // Get the current desktop action String name = actionNames.nextElement(); DesktopAction action = actions.getAction(name); // Add the pseudo file for the desktop action if ( action.hasPseudoFile()) { fstate.addPseudoFile( action.getPseudoFile()); pseudoCnt++; // DEBUG if ( logger.isInfoEnabled()) logger.info("Added desktop action " + action.getName() + " for " + path); } } } // Add the URL link pseudo file, if enabled if ( isCIFS && ctx.hasURLFile()) { // Make sure the state has the associated node details if ( fstate.getNodeRef() != null) { // Build the URL file data StringBuilder urlStr = new StringBuilder(); urlStr.append("[InternetShortcut]\r\n"); urlStr.append("URL="); urlStr.append(ctx.getURLPrefix()); urlStr.append("navigate/browse/workspace/SpacesStore/"); urlStr.append( fstate.getNodeRef().getId()); urlStr.append("\r\n"); // Create the in memory pseudo file for the URL link byte[] urlData = urlStr.toString().getBytes(); MemoryPseudoFile urlFile = new MemoryPseudoFile( ctx.getURLFileName(), urlData); fstate.addPseudoFile( urlFile); // Update the count of files added pseudoCnt++; // DEBUG if ( logger.isInfoEnabled()) logger.info("Added URL link pseudo file for " + path); } } // Return the count of pseudo files added return pseudoCnt; } /** * Delete a pseudo file * * @param sess SrvSession * @param tree TreeConnection * @param path String */ public void deletePseudoFile(SrvSession sess, TreeConnection tree, String path) { // Access the device context ContentContext ctx = (ContentContext) tree.getContext(); // Get the file state for the parent folder String[] paths = FileName.splitPath( path); FileState fstate = getStateForPath( ctx, paths[0]); // Check if the folder has any pseudo files if ( fstate == null || fstate.hasPseudoFiles() == false) return; // Remove the pseudo file from the list fstate.getPseudoFileList().removeFile( paths[1], false); } /** * Return the file state for the specified path * * @param ctx ContentContext * @param path String * @return FileState */ private final FileState getStateForPath(ContentContext ctx, String path) { // Check if there is a cached state for the path FileState fstate = null; if ( ctx.hasStateTable()) { // Get the file state for a file/folder fstate = ctx.getStateTable().findFileState(path); } // Return the file state return fstate; } }