/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2014 Philipp C. Heckel <philipp.heckel@gmail.com>
*
* This program 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.
*
* 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.syncany.operations.restore;
import java.io.File;
import org.apache.commons.io.FileUtils;
import org.syncany.config.Config;
import org.syncany.database.FileVersion;
import org.syncany.database.FileVersion.FileStatus;
import org.syncany.database.FileVersion.FileType;
import org.syncany.database.MemoryDatabase;
import org.syncany.operations.down.actions.FileCreatingFileSystemAction;
import org.syncany.util.NormalizedPath;
public class RestoreFileSystemAction extends FileCreatingFileSystemAction {
private String relativeTargetPath;
public RestoreFileSystemAction(Config config, FileVersion fileVersion, String relativeTargetPath) {
super(config, new MemoryDatabase(), null, fileVersion);
this.relativeTargetPath = relativeTargetPath;
}
@Override
public RestoreFileSystemActionResult execute() throws Exception {
if (fileVersion2.getType() == FileType.FOLDER) {
throw new Exception("Cannot restore folders.");
}
else if (fileVersion2.getType() == FileType.SYMLINK) {
throw new Exception("Not yet implemented.");
}
else {
if (fileVersion2.getStatus() == FileStatus.DELETED) {
throw new Exception("Cannot restore version marked DELETED. Try previous version.");
}
// Assemble file to cache
File cacheFile = assembleFileToCache(fileVersion2);
// Find target path & folder
NormalizedPath targetPath = findTargetPath();
NormalizedPath targetFolder = targetPath.getParent();
// Create folder (if necessary) and move file
if (!targetFolder.toFile().isDirectory()) {
targetFolder.toFile().mkdirs();
}
FileUtils.moveFile(cacheFile, targetPath.toFile());
return new RestoreFileSystemActionResult(targetPath.toFile());
}
}
private NormalizedPath findTargetPath() throws Exception {
NormalizedPath targetPath = null;
if (relativeTargetPath == null) {
String restoredSuffix = "restored version " + fileVersion2.getVersion();
targetPath = new NormalizedPath(config.getLocalDir(), fileVersion2.getPath()).withSuffix(restoredSuffix, false);
}
else {
targetPath = new NormalizedPath(config.getLocalDir(), relativeTargetPath);
}
return targetPath;
}
}