/*
* This file is part of muCommander, http://www.mucommander.com
* Copyright (C) 2002-2012 Maxence Bernard
*
* muCommander is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* muCommander 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 com.mucommander.job;
import java.io.IOException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.mucommander.command.Command;
import com.mucommander.commons.file.AbstractFile;
import com.mucommander.commons.file.PermissionAccesses;
import com.mucommander.commons.file.PermissionTypes;
import com.mucommander.commons.file.util.FileSet;
import com.mucommander.process.ProcessRunner;
import com.mucommander.ui.dialog.file.ProgressDialog;
import com.mucommander.ui.main.MainFrame;
/**
* This job copies a file or a set of files to a temporary folder, makes the temporary file(s) read-only and
* executes them with a specific command. The temporary files are deleted when the JVM terminates.
*
* <p>It is important to understand that when this job operates on a set of files, a process is started for each file
* to execute, so this operation should require confirmation by the user before being attempted.</p>
*
* @author Maxence Bernard, Nicolas Rinaudo
*/
public class TempOpenWithJob extends TempCopyJob {
private static final Logger LOGGER = LoggerFactory.getLogger(TempOpenWithJob.class);
/** The command to execute, appended with the temporary file path(s) */
private Command command;
/** Files to execute */
private FileSet filesToOpen;
/** This list is populated with temporary files, as they are created by processFile() */
private FileSet tempFiles;
/**
* Creates a new <code>TempOpenWithJob</code> that operates on a single file.
*
* @param progressDialog the ProgressDialog that monitors this job
* @param mainFrame the MainFrame this job is attached to
* @param fileToOpen the file to copy to a temporary location and execute
* @param command the command used to execute the temporary file
*/
public TempOpenWithJob(ProgressDialog progressDialog, MainFrame mainFrame, AbstractFile fileToOpen, Command command) {
this(progressDialog, mainFrame, new FileSet(fileToOpen.getParent(), fileToOpen), command);
}
/**
* Creates a new <code>TempOpenWithJob</code> that operates on a set of files. Only a single command get executed, operating on
* all files.
*
* @param progressDialog the ProgressDialog that monitors this job
* @param mainFrame the MainFrame this job is attached to
* @param filesToOpen the set of files to copy to a temporary location and execute
* @param command the command used to execute the temporary file
*/
public TempOpenWithJob(ProgressDialog progressDialog, MainFrame mainFrame, FileSet filesToOpen, Command command) {
super(progressDialog, mainFrame, filesToOpen);
this.command = command;
this.filesToOpen = filesToOpen;
tempFiles = new FileSet(baseDestFolder);
}
////////////////////////
// Overridden methods //
////////////////////////
@Override
protected boolean processFile(AbstractFile file, Object recurseParams) {
if(!super.processFile(file, recurseParams))
return false;
// TODO: temporary files seem to be left after the JVM quits under Mac OS X, even if the files permissions are unchanged
// Add the file to the list of files to open, only if it is one of the top-level files
if(filesToOpen.indexOf(file)!=-1) {
if(!currentDestFile.isDirectory()) { // Do not change directories' permissions
try {
// Make the temporary file read only
if(currentDestFile.getChangeablePermissions().getBitValue(PermissionAccesses.USER_ACCESS, PermissionTypes.WRITE_PERMISSION))
currentDestFile.changePermission(PermissionAccesses.USER_ACCESS, PermissionTypes.WRITE_PERMISSION, false);
}
catch(IOException e) {
LOGGER.debug("Caught exeception while changing permissions of "+currentDestFile, e);
return false;
}
}
tempFiles.add(currentDestFile);
}
return true;
}
@Override
protected void jobCompleted() {
super.jobCompleted();
try {
ProcessRunner.execute(command.getTokens(tempFiles), baseDestFolder);
}
catch(Exception e) {
LOGGER.debug("Caught exception executing "+command+" "+tempFiles, e);
}
}
}