private void updateFilenameHistoryCache() {
// TODO [medium] Performance: This throws away the unchanged entries. It should only update new
// database version
filenameHistoryCache.clear();
for (PartialFileHistory cacheFileHistory : fullDatabaseVersionCache.getFileHistories()) {
FileVersion lastVersion = cacheFileHistory.getLastVersion();
String fileName = lastVersion.getPath();
if (lastVersion.getStatus() != FileStatus.DELETED) {
filenameHistoryCache.put(fileName, cacheFileHistory);
}
}
}
// TODO [medium] Very inefficient. Always updates whole cache
private void updateContentChecksumCache() {
contentChecksumFileHistoriesCache.clear();
for (PartialFileHistory fullFileHistory : fullDatabaseVersionCache.getFileHistories()) {
FileChecksum lastVersionChecksum = fullFileHistory.getLastVersion().getChecksum();
if (lastVersionChecksum != null) {
List<PartialFileHistory> historiesWithVersionsWithSameChecksum =
contentChecksumFileHistoriesCache.get(lastVersionChecksum);
// Create if it does not exist
if (historiesWithVersionsWithSameChecksum == null) {
historiesWithVersionsWithSameChecksum = new ArrayList<PartialFileHistory>();
}
// Add to cache
historiesWithVersionsWithSameChecksum.add(fullFileHistory);
contentChecksumFileHistoriesCache.put(
lastVersionChecksum, historiesWithVersionsWithSameChecksum);
}
}
}
private void updateFullDatabaseVersionCache(DatabaseVersion newDatabaseVersion) {
// Chunks
for (ChunkEntry sourceChunk : newDatabaseVersion.getChunks()) {
if (fullDatabaseVersionCache.getChunk(sourceChunk.getChecksum()) == null) {
fullDatabaseVersionCache.addChunk(sourceChunk);
}
}
// Multichunks
for (MultiChunkEntry sourceMultiChunk : newDatabaseVersion.getMultiChunks()) {
if (fullDatabaseVersionCache.getMultiChunk(sourceMultiChunk.getId()) == null) {
fullDatabaseVersionCache.addMultiChunk(sourceMultiChunk);
}
}
// Contents
for (FileContent sourceFileContent : newDatabaseVersion.getFileContents()) {
if (fullDatabaseVersionCache.getFileContent(sourceFileContent.getChecksum()) == null) {
fullDatabaseVersionCache.addFileContent(sourceFileContent);
}
}
// Histories
for (PartialFileHistory sourceFileHistory : newDatabaseVersion.getFileHistories()) {
PartialFileHistory targetFileHistory =
fullDatabaseVersionCache.getFileHistory(sourceFileHistory.getFileId());
if (targetFileHistory == null) {
fullDatabaseVersionCache.addFileHistory((PartialFileHistory) sourceFileHistory.clone());
} else {
for (FileVersion sourceFileVersion : sourceFileHistory.getFileVersions().values()) {
if (targetFileHistory.getFileVersion(sourceFileVersion.getVersion()) == null) {
targetFileHistory.addFileVersion(sourceFileVersion);
}
}
}
}
}