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	For DoubleRenameShuffle scenario for Mac Lion files add moveAsSystem flag to allow Editor to edit files. Add unit tests. git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@55130 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
		
			
				
	
	
		
			358 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			358 lines
		
	
	
		
			13 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
/*
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 * Copyright (C) 2005-2010 Alfresco Software Limited.
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 *
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 * This file is part of Alfresco
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 *
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 * Alfresco is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Lesser General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * Alfresco is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public License
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 * along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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 */
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package org.alfresco.filesys.repo.rules;
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import java.util.ArrayList;
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import java.util.Date;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import org.alfresco.filesys.repo.rules.commands.CompoundCommand;
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import org.alfresco.filesys.repo.rules.commands.CopyContentCommand;
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import org.alfresco.filesys.repo.rules.commands.DeleteFileCommand;
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import org.alfresco.filesys.repo.rules.commands.MoveFileCommand;
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import org.alfresco.filesys.repo.rules.commands.RenameFileCommand;
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import org.alfresco.filesys.repo.rules.operations.MoveFileOperation;
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import org.alfresco.filesys.repo.rules.operations.RenameFileOperation;
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import org.alfresco.jlan.server.filesys.FileName;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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 * This is an instance of a "double rename shuffle" triggered by rename of a file to a special pattern
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 * file matching a specified pattern.  (*.backup.fm)
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 * 
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 * a) Existing file moved out of the way. X.fm to X.backup.fm
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 * b) New file moved into place. X.fm.C29 X.fm
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 * <p>
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 * If this filter is active then this is what happens.
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 * a) Existing file moved out of the way (Y to Z).   Raname tracked.
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 * b) New file moved into place (X to Y).   
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 * 
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 * Scenario kicks in to change commands.
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 */
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public class ScenarioDoubleRenameShuffleInstance implements ScenarioInstance
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{
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    private static Log logger = LogFactory.getLog(ScenarioDoubleRenameShuffleInstance.class);
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    enum InternalState 
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    {
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        NONE,
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        RENAME1,
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        RENAME2
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    }
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    InternalState internalState = InternalState.NONE;
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    private Date startTime = new Date();
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    private String fileMiddle;
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    private String fileFrom;
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    private String fileEnd;
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    private Ranking ranking;
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    private boolean deleteBackup;
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    private boolean moveAsSystem;
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    private Pattern interimPattern;
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    /**
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     * Timeout in ms.  Default 30 seconds.
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     */
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    private long timeout = 30000;
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    private boolean isComplete;
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    private String folderMiddle;
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    private String folderEnd;
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    /**
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     * Keep track of re-names
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     */
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    private Map<String, String> renames = new HashMap<String, String>();
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    /**
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     * Evaluate the next operation
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     * @param operation
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     */
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    public Command evaluate(Operation operation)
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    {
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        /**
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         * Anti-pattern : timeout
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         */
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        Date now = new Date();
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        if(now.getTime() > startTime.getTime() + getTimeout())
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        {
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            if(logger.isDebugEnabled())
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            {
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                logger.debug("Instance timed out");
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            }
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            isComplete = true;
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            return null;
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        }
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        switch (internalState)
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        {
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        case NONE:
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            /**
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             * Looking for first rename Y(middle) to Z(end)
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             */              
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            if(operation instanceof RenameFileOperation)
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            {
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                if(logger.isDebugEnabled())
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                {
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                    logger.debug("Got first rename - tracking rename: " + operation);
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                }
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                RenameFileOperation r = (RenameFileOperation)operation;
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                fileMiddle = r.getFrom();
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                fileEnd = r.getTo();
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                String[] paths = FileName.splitPath(r.getFromPath());
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                folderMiddle = paths[0];
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                String[] paths2 = FileName.splitPath(r.getToPath());
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                folderEnd = paths2[0];
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                internalState = InternalState.RENAME1;
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                return  new RenameFileCommand(r.getFrom(), r.getTo(), r.getRootNodeRef(), r.getFromPath(), r.getToPath());   
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            }
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            else
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            {
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                // anything else bomb out
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                if(logger.isDebugEnabled())
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                {
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                    logger.debug("State error, expected a RENAME");
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                }
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                isComplete = true;
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            }
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        case RENAME1:
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            /**
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             * Looking for the second of two renames X(createName) to Y(middle) to Z(end)
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             */              
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            if(operation instanceof RenameFileOperation)
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            {
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                if(logger.isDebugEnabled())
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                {
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                    logger.debug("Tracking rename: " + operation);
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                }
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                RenameFileOperation r = (RenameFileOperation)operation;
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                // Now see if this rename makes a pair
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                if(fileMiddle.equalsIgnoreCase(r.getTo()))
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                {
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                    if(logger.isDebugEnabled())
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                    {
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                        logger.debug("Got second rename" );
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                    }
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                    fileFrom = r.getFrom();
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                    /**
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                     * This shuffle reverses the rename out of the way and then copies the 
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                     * content only.   Finally it moves the temp file into place for the subsequent 
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                     * delete.
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                     * a) Rename Z to Y (Reverse previous move)
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                     * b) Copy Content from X to Y
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                     * c) Rename X to Z (move temp file out to old location)
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                     */
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                    if(logger.isDebugEnabled())
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                    {
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                        logger.debug("Go and shuffle! fromName:" + fileFrom + " middle: " + fileMiddle + " end: " + fileEnd);
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                    }
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                    String[] paths = FileName.splitPath(r.getFromPath());
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                    String oldFolder = paths[0];
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                    ArrayList<Command> commands = new ArrayList<Command>();
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                    RenameFileCommand r1 = new RenameFileCommand(fileEnd, fileMiddle, r.getRootNodeRef(), oldFolder + "\\" + fileEnd, oldFolder + "\\" + fileMiddle);
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                    commands.add(r1);
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                    CopyContentCommand copyContent = new CopyContentCommand(fileFrom, fileMiddle, r.getRootNodeRef(), oldFolder + "\\" + fileFrom, oldFolder + "\\" + fileMiddle);
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                    commands.add(copyContent);
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                    if(deleteBackup)
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                    {
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                        logger.debug("deleteBackup option turned on");
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                        DeleteFileCommand d1 = new DeleteFileCommand(oldFolder, r.getRootNodeRef(), oldFolder + "\\" + fileFrom);
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                        commands.add(d1);
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                    }
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                    else
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                    {
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                        RenameFileCommand r2 = new RenameFileCommand(fileFrom, fileEnd, r.getRootNodeRef(), oldFolder + "\\" + fileFrom, oldFolder + "\\" + fileEnd);
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                        commands.add(r2);
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                    }   
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                    /**
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                     * TODO - we may need to copy a new node for the backup and delete the temp node.
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                     * It depends if we care about the contents of the Backup file.
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                     */
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                    isComplete = true;
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                    return new CompoundCommand(commands);                                        
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                }
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            }
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            if(operation instanceof MoveFileOperation)
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            {
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                if(logger.isDebugEnabled())
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                {
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                    logger.info("Tracking rename: " + operation);
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                }
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                MoveFileOperation r = (MoveFileOperation)operation;
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                // Now see if this rename makes a pair
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                if(fileMiddle.equalsIgnoreCase(r.getTo()))
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                {
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                    if(logger.isDebugEnabled())
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                    {
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                        logger.debug("Got second rename" );
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                    }
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                    fileFrom = r.getFrom();
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                    /**
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                     * This shuffle reverses the rename out of the way and then copies the 
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                     * content only.   Finally it moves the temp file into place for the subsequent 
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                     * delete.
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                     * a) Rename Z to Y (Reverse previous move)
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                     * b) Copy Content from X to Y
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                     * c) Rename X to Z (move temp file out to old location)
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                     */
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                    if(logger.isDebugEnabled())
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                    {
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                        logger.debug("Go and shuffle! fromName:" + fileFrom + " middle: " + fileMiddle + " end: " + fileEnd);
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                    }
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                    String[] paths = FileName.splitPath(r.getFromPath());
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                    String oldFolder = paths[0];
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                    ArrayList<Command> commands = new ArrayList<Command>();
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                    RenameFileCommand r1 = new RenameFileCommand(fileEnd, fileMiddle, r.getRootNodeRef(), folderEnd + "\\" + fileEnd, folderMiddle + "\\" + fileMiddle);
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                    commands.add(r1);
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                    CopyContentCommand copyContent = new CopyContentCommand(fileFrom, fileMiddle, r.getRootNodeRef(), oldFolder + "\\" + fileFrom, folderMiddle + "\\" + fileMiddle);
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                    commands.add(copyContent);
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                    if(deleteBackup)
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                    {
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                        logger.debug("deleteBackup option turned on");
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                        DeleteFileCommand d1 = new DeleteFileCommand(oldFolder, r.getRootNodeRef(), oldFolder + "\\" + fileFrom);
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                        commands.add(d1);
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                    }
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                    else
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                    {
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                       MoveFileCommand m1 = new MoveFileCommand(fileFrom, fileEnd, r.getRootNodeRef(), oldFolder + "\\" + fileFrom, folderEnd + "\\" + fileEnd, isMoveAsSystem());
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                       commands.add(m1);
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                    }
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                    /**
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                     * TODO - we may need to copy a new node for the backup and delete the temp node.
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                     * It depends if we care about the contents of the Backup file.
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                     */
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                    isComplete = true;
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                    return new CompoundCommand(commands);
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                }
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                else
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                {
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                    if ((interimPattern != null))
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                    {
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                        // ALF-16257: temporary Word file moved from .TemporaryItems
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                        Matcher m = interimPattern.matcher(r.getFromPath());
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                        if(m.matches() && r.getFrom().equals(r.getTo()))
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                        {
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                            if(logger.isDebugEnabled())
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                            {
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                                logger.debug("Got system move from temporary folder: " + r.getFrom() + " to " + r.getToPath());
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                            }
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                            return  new MoveFileCommand(r.getFrom(), r.getTo(), r.getRootNodeRef(), r.getFromPath(), r.getToPath(), true);
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                        }
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                    }
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                }
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            }
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            break;
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        }
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        return null;
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    }
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    public boolean isMoveAsSystem()
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    {
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        return moveAsSystem;
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    }
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    public void setMoveAsSystem(boolean moveAsSystem)
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    {
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        this.moveAsSystem = moveAsSystem;
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    }
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    @Override
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    public boolean isComplete()
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    {
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        return isComplete;
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    }
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    @Override
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    public Ranking getRanking()
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    {
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        return ranking;
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    }
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    public void setRanking(Ranking ranking)
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    {
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        this.ranking = ranking;
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    }
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    public String toString()
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    {
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        return "ScenarioDoubleRename:" + fileMiddle;
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    }
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    public void setTimeout(long timeout)
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    {
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        this.timeout = timeout;
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    }
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    public long getTimeout()
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    {
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        return timeout;
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    }
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    public void setDeleteBackup(boolean deleteBackup)
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    {
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        this.deleteBackup = deleteBackup;
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    }
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    public boolean isDeleteBackup()
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    {
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        return deleteBackup;
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    }
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    public void setInterimPattern(Pattern interimPattern)
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    {
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        this.interimPattern = interimPattern;
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    }
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}
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