Пример #1
0
 /**
  * If 'file' exists, attempt to delete it. Logs, but doesn't throw upon failure.
  *
  * @param file
  * @param userId only for logging.
  */
 private void deleteFileIfNeeded(File file, int userId) {
   if (file.exists()) {
     boolean ok = file.delete();
     if (!ok) {
       // This is a problem because it may delay informing a client to leave
       // activation.
       LogMessageGen lmg = new LogMessageGen();
       lmg.setSubject("Unable to delete file");
       lmg.param(LoggingConsts.USER_ID, userId);
       lmg.param(LoggingConsts.FILENAME, file.getAbsolutePath());
       m_logCategory.error(lmg.toString());
     }
   }
 }
Пример #2
0
  public void purgeLogEvents(final List<SearchConstraint> constraints, final int daysToKeep) {
    blockHereIfBadNfs();

    StringBuffer sql =
        new StringBuffer(
            "select u.mail_directory || '/logs/' || e.event_id || '.log' "
                + "from dat_client_log_events e, dat_user_account u "
                + "where event_time < current_timestamp - (? || ' days')::interval "
                + "and e.has_log_file != 0 "
                + "and e.user_id = u.object_id");
    appendWhereConstraints(sql, constraints, s_propToColumnMap);
    m_logCategory.info("Purge event logs query is\n" + sql);

    StringBuffer sql2 =
        new StringBuffer(
            "delete from dat_client_log_events "
                + "where event_time < current_timestamp - (? || ' days')::interval");
    if (!constraints.isEmpty()) {
      sql2.append(" and event_id in (select e.event_id from dat_client_log_events e ");
      appendWhere(sql2, constraints, s_propToColumnMap);
      sql2.append(")");
    }
    m_logCategory.info("Purge event logs query is\n" + sql2);

    try {
      Connection c = m_txManager.getConnection();
      PreparedStatement stmt = null;
      ResultSet rs = null;
      boolean needsRollback = true;
      try {
        stmt = c.prepareStatement(sql.toString());
        stmt.setInt(1, daysToKeep);
        rs = stmt.executeQuery();
        while (rs.next()) {
          File logFile = new File(getNfsRoot(), rs.getString(1));
          // nfs usage, but DB transaction takes no locks.
          if (logFile.exists()) {
            boolean ok = logFile.delete();
            if (!ok) {
              m_logger
                  .log("Unable to delete")
                  .param(LoggingConsts.FILENAME, logFile.getAbsolutePath())
                  .warn();
            }
          } // file exists.
        } // each row

        // Below, no nfs usage occurs.  We can use the same connection.
        // the 'sql delete' may use DB locks.
        stmt = c.prepareStatement(sql2.toString());
        stmt.setInt(1, daysToKeep);
        stmt.executeUpdate();
        c.commit();
        needsRollback = false;
      } finally {
        DbUtils.safeClose(rs);
        DbUtils.safeClose(stmt);
        if (needsRollback) {
          c.rollback();
        }
        m_txManager.returnConnection(c);
      }
    } catch (Exception ex) {
      m_logger.log("Error in purgeLogEvents").warn(ex);
    }
  }