예제 #1
0
파일: Log.java 프로젝트: AbacusHu/OpenDJ
 private void openHeadLogFile() throws ChangelogException {
   final LogFile<K, V> head =
       LogFile.newAppendableLogFile(new File(logPath, HEAD_LOG_FILE_NAME), recordParser);
   final Record<K, V> newestRecord = head.getNewestRecord();
   lastAppendedKey = newestRecord != null ? newestRecord.getKey() : null;
   logFiles.put(recordParser.getMaxKey(), head);
 }
예제 #2
0
파일: Log.java 프로젝트: AbacusHu/OpenDJ
  /** Update the cursors that were pointing to head after a rotation of the head log file. */
  private void updateOpenedCursorsOnHeadAfterRotation(
      List<Pair<AbortableLogCursor<K, V>, CursorState<K, V>>> cursors) throws ChangelogException {
    for (Pair<AbortableLogCursor<K, V>, CursorState<K, V>> pair : cursors) {
      final CursorState<K, V> cursorState = pair.getSecond();

      // Need to update the cursor only if it is pointing to the head log file
      if (cursorState.isValid() && isHeadLogFile(cursorState.logFile)) {
        final K previousKey = logFiles.lowerKey(recordParser.getMaxKey());
        final LogFile<K, V> logFile = findLogFileFor(previousKey);
        final AbortableLogCursor<K, V> cursor = pair.getFirst();
        cursor.reinitializeTo(
            new CursorState<K, V>(logFile, cursorState.filePosition, cursorState.record));
      }
    }
  }