private PartialFileHistory guessLastFileHistoryForFileWithMatchingChecksum(
FileProperties fileProperties,
Collection<PartialFileHistory> fileHistoriesWithSameChecksum) {
PartialFileHistory lastFileHistory = null;
// Check if they do not exist anymore --> assume it has moved!
// We choose the best fileHistory to base on as follows:
// 1. Ensure that it was modified at the same time and is the same size
// 2. Check the fileHistory was deleted and the file does not actually exists
// 3. Choose the one with the longest matching tail of the path to the new path
for (PartialFileHistory fileHistoryWithSameChecksum : fileHistoriesWithSameChecksum) {
FileVersion lastVersion = fileHistoryWithSameChecksum.getLastVersion();
if (fileProperties.getLastModified() != lastVersion.getLastModified().getTime()
|| fileProperties.getSize() != lastVersion.getSize()) {
continue;
}
File lastVersionOnLocalDisk =
new File(config.getLocalDir() + File.separator + lastVersion.getPath());
if (lastVersion.getStatus() != FileStatus.DELETED
&& !FileUtil.exists(lastVersionOnLocalDisk)) {
if (lastFileHistory == null) {
lastFileHistory = fileHistoryWithSameChecksum;
} else {
String filePath = fileProperties.getRelativePath();
String currentPreviousPath = lastFileHistory.getLastVersion().getPath();
String candidatePreviousPath = fileHistoryWithSameChecksum.getLastVersion().getPath();
for (int i = 0; i < filePath.length(); i++) {
if (!filePath.regionMatches(
filePath.length() - i,
candidatePreviousPath,
candidatePreviousPath.length() - i,
i)) {
// The candidate no longer matches, take the current path.
break;
}
if (!filePath.regionMatches(
filePath.length() - i,
currentPreviousPath,
currentPreviousPath.length() - i,
i)) {
// The current previous path no longer matches, take the new candidate
lastFileHistory = fileHistoryWithSameChecksum;
break;
}
}
}
}
}
return lastFileHistory;
}
private void updateTable(LsFolderRequest lsRequest, LsFolderResponse lsResponse) {
logger.log(
Level.INFO,
"Detail panel: Updating table with "
+ lsResponse.getResult().getFileVersions().size()
+ " file versions ...");
// Add new file version items
List<PartialFileHistory> fileVersions =
new ArrayList<>(lsResponse.getResult().getFileVersions().values());
selectedFileHistory = fileVersions.get(0);
for (FileVersion fileVersion : selectedFileHistory.getFileVersions().values()) {
String checksumStr =
(fileVersion.getChecksum() != null) ? fileVersion.getChecksum().toString() : "";
TableItem tableItem = new TableItem(historyTable, SWT.NONE);
tableItem.setData(fileVersion);
tableItem.setImage(COLUMN_INDEX_STATUS, getStatusImage(fileVersion.getStatus()));
tableItem.setText(COLUMN_INDEX_PATH, fileVersion.getPath());
tableItem.setText(COLUMN_INDEX_VERSION, Long.toString(fileVersion.getVersion()));
tableItem.setText(COLUMN_INDEX_TYPE, fileVersion.getType().toString());
tableItem.setText(COLUMN_INDEX_SIZE, FileUtil.formatFileSize(fileVersion.getSize()));
tableItem.setText(COLUMN_INDEX_POSIX_PERMS, fileVersion.getPosixPermissions());
tableItem.setText(COLUMN_INDEX_DOS_ATTRS, fileVersion.getDosAttributes());
tableItem.setText(COLUMN_INDEX_CHECKSUM, checksumStr);
tableItem.setText(COLUMN_INDEX_LAST_MODIFIED, "" + fileVersion.getLastModified());
tableItem.setText(COLUMN_INDEX_UPDATED, "" + fileVersion.getUpdated());
}
if (historyTable.getItemCount() > 0) {
restoreButton.setEnabled(false);
historyTable.select(historyTable.getItemCount() - 1);
}
resizeColumns();
}