/** Helper for {@link #get(File, Repository)}. */
private History getHistory(File file, Repository repository, boolean withFiles)
throws HistoryException, SQLException {
final String filePath = getSourceRootRelativePath(file);
final String reposPath = toUnixPath(repository.getDirectoryName());
final ArrayList<HistoryEntry> entries = new ArrayList<HistoryEntry>();
final ConnectionResource conn = connectionManager.getConnectionResource();
try {
final PreparedStatement ps;
if (file.isDirectory()) {
// Fetch history for all files under this directory.
ps = conn.getStatement(GET_DIR_HISTORY);
ps.setString(2, filePath);
} else {
// Fetch history for a single file only.
ps = conn.getStatement(GET_FILE_HISTORY);
ps.setString(2, getParentPath(filePath));
ps.setString(3, getBaseName(filePath));
}
ps.setString(1, reposPath);
final PreparedStatement filePS = withFiles ? conn.getStatement(GET_CS_FILES) : null;
try (ResultSet rs = ps.executeQuery()) {
while (rs.next()) {
// Get the information about a changeset
String revision = rs.getString(1);
String author = rs.getString(2);
Timestamp time = rs.getTimestamp(3);
String message = rs.getString(4);
HistoryEntry entry = new HistoryEntry(revision, time, author, null, message, true);
entries.add(entry);
// Fill the list of files touched by the changeset, if
// requested.
if (withFiles) {
int changeset = rs.getInt(5);
filePS.setInt(1, changeset);
try (ResultSet fileRS = filePS.executeQuery()) {
while (fileRS.next()) {
entry.addFile(fileRS.getString(1));
}
}
}
}
}
} finally {
connectionManager.releaseConnection(conn);
}
History history = new History();
history.setHistoryEntries(entries);
RuntimeEnvironment env = RuntimeEnvironment.getInstance();
if (env.isTagsEnabled() && repository.hasFileBasedTags()) {
repository.assignTagsInHistory(history);
}
return history;
}
/**
* Create a history log cache for all files in this repository. {@code getHistory()} is used to
* fetch the history for the entire repository. If {@code hasHistoryForDirectories()} returns
* {@code false}, this method is a no-op.
*
* @param cache the cache instance in which to store the history log
* @param sinceRevision if non-null, incrementally update the cache with all revisions after the
* specified revision; otherwise, create the full history starting with the initial revision
* @throws HistoryException on error
*/
final void createCache(HistoryCache cache, String sinceRevision) throws HistoryException {
if (!isWorking()) {
return;
}
// If we don't have a directory parser, we can't create the cache
// this way. Just give up and return.
if (!hasHistoryForDirectories()) {
Logger.getLogger(getClass().getName())
.log(
Level.INFO,
"Skipping creation of history cache for {0}, since retrieval "
+ "of history for directories is not implemented for this "
+ "repository type.",
getDirectoryName());
return;
}
File directory = new File(getDirectoryName());
History history;
try {
history = getHistory(directory, sinceRevision);
} catch (HistoryException he) {
if (sinceRevision == null) {
// Failed to get full history, so fail.
throw he;
}
// Failed to get partial history. This may have been caused
// by changes in the revision numbers since the last update
// (bug #14724) so we'll try to regenerate the cache from
// scratch instead.
OpenGrokLogger.getLogger()
.log(
Level.INFO,
"Failed to get partial history. Attempting to "
+ "recreate the history cache from scratch.",
he);
history = null;
}
if (sinceRevision != null && history == null) {
// Failed to get partial history, now get full history instead.
history = getHistory(directory);
// Got full history successfully. Clear the history cache so that
// we can recreate it from scratch.
cache.clear(this);
}
// We need to refresh list of tags for incremental reindex.
RuntimeEnvironment env = RuntimeEnvironment.getInstance();
if (env.isTagsEnabled() && this.hasFileBasedTags()) {
this.buildTagList(new File(this.directoryName));
}
if (history != null) {
cache.store(history, this);
}
}
@Override
History getHistory(File file, String sinceRevision) throws HistoryException {
RuntimeEnvironment env = RuntimeEnvironment.getInstance();
History result = new BazaarHistoryParser(this).parse(file, sinceRevision);
// Assign tags to changesets they represent
// We don't need to check if this repository supports tags, because we know it:-)
if (env.isTagsEnabled()) {
assignTagsInHistory(result);
}
return result;
}