ChangeFileSystemAction.java
/*
* Syncany, www.syncany.org
* Copyright (C) 2011-2016 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.down.actions;
import java.util.logging.Level;
import org.syncany.config.Config;
import org.syncany.database.FileVersion;
import org.syncany.database.FileVersion.FileStatus;
import org.syncany.database.MemoryDatabase;
import org.syncany.operations.Assembler;
public class ChangeFileSystemAction extends FileCreatingFileSystemAction {
public ChangeFileSystemAction(Config config, MemoryDatabase winningDatabase, Assembler assembler, FileVersion fromFileVersion,
FileVersion toFileVersion) {
super(config, winningDatabase, assembler, fromFileVersion, toFileVersion);
}
@Override
public FileSystemActionResult execute() throws Exception {
boolean fromFileExists = fileExists(fileVersion1);
boolean fromFileMatches = fromFileExists && fileAsExpected(fileVersion1);
boolean toFileExists = fileExists(fileVersion2);
boolean toFileMatches = toFileExists && fileAsExpected(fileVersion2);
boolean filesAtSameLocation = fileVersion1.getPath().equals(fileVersion2.getPath());
if (fromFileMatches && !toFileMatches) { // Normal case
// Original file matches, so we can delete it
// Create conflict file for winning file, if it exists
if (!toFileExists) {
logger.log(Level.INFO, " - (1) Original file matches, target file does NOT match: deleting original file, creating target file at: "+fileVersion2);
deleteFile(fileVersion1);
createFileFolderOrSymlink(fileVersion2);
}
else {
logger.log(Level.INFO, " - (2) Original file matches, target file does NOT match (EXISTS!): deleting original file, creating conflict file and creating target file at: "+fileVersion2);
deleteFile(fileVersion1);
moveToConflictFile(fileVersion2);
createFileFolderOrSymlink(fileVersion2);
}
}
else if (fromFileMatches && toFileMatches) {
// Original file matches, so we can delete it
// Nothing to do for winning file, matches
if (!filesAtSameLocation) {
logger.log(Level.INFO, " - (3) Original file matches, target file matches, and they are not the same: deleting orig. file, nothing else!");
deleteFile(fileVersion1);
}
else {
logger.log(Level.INFO, " - (4) Original file matches, target file matches, but they are in the same location (!!): Do nothing!");
}
}
else if (!fromFileMatches && toFileMatches) {
// Leave original file untouched. Will be untracked from now on
// Nothing to do for winning file, matches
logger.log(Level.INFO, " - (5) Original does NOT match, target file matches: Leaving orig. file untouched. Do nothing!");
}
else if (!fromFileMatches && !toFileMatches) {
// Leave original file untouched. Will be untracked from now on
// Create conflict file for winning file, if it exists
if (toFileExists) {
logger.log(Level.INFO, " - (6) Original does NOT match, target file does NOT match, but exists: Creating conflict file, and creating file at: "+fileVersion2);
moveToConflictFile(fileVersion2);
createFileFolderOrSymlink(fileVersion2);
}
else {
if (fileVersion2.getStatus() == FileStatus.DELETED) {
logger.log(Level.INFO, " - (7) Original does NOT match, target file does not exist (and SHOUDN'T): Nothing to do!");
}
else {
logger.log(Level.INFO, " - (8) Original does NOT match, target file does not exist: Creating file at: "+fileVersion2);
createFileFolderOrSymlink(fileVersion2);
}
}
}
return new FileSystemActionResult();
}
@Override
public String toString() {
return "ChangeFileSystemAction [file1=" + fileVersion1 + ", file2=" + fileVersion2 + "]";
}
}