Пример #1
1
  @Override
  public int size(final DatabaseTable table) throws DatabaseException {
    preOperationCheck();

    final StringBuilder sb = new StringBuilder();
    sb.append("SELECT COUNT(" + KEY_COLUMN + ") FROM ").append(table.toString());

    PreparedStatement statement = null;
    ResultSet resultSet = null;
    try {
      statement = connection.prepareStatement(sb.toString());
      resultSet = statement.executeQuery();
      if (resultSet.next()) {
        return resultSet.getInt(1);
      }
    } catch (SQLException e) {
      final ErrorInformation errorInformation =
          new ErrorInformation(
              PwmError.ERROR_DB_UNAVAILABLE, "size operation failed: " + e.getMessage());
      lastError = errorInformation;
      throw new DatabaseException(errorInformation);
    } finally {
      close(statement);
      close(resultSet);
    }

    updateStats(true, false);
    return 0;
  }
Пример #2
0
 private static void checkIfTableExists(final Connection connection, final DatabaseTable table)
     throws SQLException {
   final StringBuilder sb = new StringBuilder();
   sb.append("SELECT * FROM  ").append(table.toString()).append(" WHERE " + KEY_COLUMN + " = '0'");
   Statement statement = null;
   ResultSet resultSet = null;
   try {
     statement = connection.createStatement();
     resultSet = statement.executeQuery(sb.toString());
   } finally {
     close(statement);
     close(resultSet);
   }
 }
Пример #3
0
    private ResultSet init() throws DatabaseException {
      final StringBuilder sb = new StringBuilder();
      sb.append("SELECT " + KEY_COLUMN + " FROM ").append(table.toString());

      try {
        final PreparedStatement statement = connection.prepareStatement(sb.toString());
        return statement.executeQuery();
      } catch (SQLException e) {
        final ErrorInformation errorInformation =
            new ErrorInformation(
                PwmError.ERROR_DB_UNAVAILABLE, "get iterator failed: " + e.getMessage());
        lastError = errorInformation;
        throw new DatabaseException(errorInformation);
      }
    }
Пример #4
0
  private boolean isValid(final Connection connection) {
    if (connection == null) {
      return false;
    }

    if (status != PwmService.STATUS.OPEN) {
      return false;
    }

    try {
      final Method getFreeSpaceMethod = File.class.getMethod("isValid");
      final Object rawResult = getFreeSpaceMethod.invoke(connection, 10);
      return (Boolean) rawResult;
    } catch (NoSuchMethodException e) {
      /* no error, pre java 1.6 doesn't have this method */
    } catch (Exception e) {
      LOGGER.debug(
          "error checking for isValid for " + connection.toString() + ",: " + e.getMessage());
    }

    final StringBuilder sb = new StringBuilder();
    sb.append("SELECT * FROM ")
        .append(DatabaseTable.PWM_META.toString())
        .append(" WHERE " + KEY_COLUMN + " = ?");
    PreparedStatement statement = null;
    ResultSet resultSet = null;
    try {
      statement = connection.prepareStatement(sb.toString());
      statement.setString(1, KEY_ENGINE_START_PREFIX + instanceID);
      statement.setMaxRows(1);
      resultSet = statement.executeQuery();
      if (resultSet.next()) {
        resultSet.getString(VALUE_COLUMN);
      }
    } catch (SQLException e) {
      final ErrorInformation errorInformation =
          new ErrorInformation(
              PwmError.ERROR_DB_UNAVAILABLE, "isValid operation failed: " + e.getMessage());
      lastError = errorInformation;
      LOGGER.error(errorInformation.toDebugStr());
      return false;
    } finally {
      close(statement);
      close(resultSet);
    }
    return true;
  }
Пример #5
0
  @Override
  public String get(final DatabaseTable table, final String key) throws DatabaseException {
    if (traceLogging) {
      LOGGER.trace("attempting get operation for table=" + table + ", key=" + key);
    }
    preOperationCheck();
    final StringBuilder sb = new StringBuilder();
    sb.append("SELECT * FROM ").append(table.toString()).append(" WHERE " + KEY_COLUMN + " = ?");

    PreparedStatement statement = null;
    ResultSet resultSet = null;
    String returnValue = null;
    try {
      statement = connection.prepareStatement(sb.toString());
      statement.setString(1, key);
      statement.setMaxRows(1);
      resultSet = statement.executeQuery();

      if (resultSet.next()) {
        returnValue = resultSet.getString(VALUE_COLUMN);
      }
    } catch (SQLException e) {
      final ErrorInformation errorInformation =
          new ErrorInformation(
              PwmError.ERROR_DB_UNAVAILABLE, "get operation failed: " + e.getMessage());
      lastError = errorInformation;
      throw new DatabaseException(errorInformation);
    } finally {
      close(statement);
      close(resultSet);
    }

    if (traceLogging) {
      final LinkedHashMap<String, Object> debugOutput = new LinkedHashMap<>();
      debugOutput.put("table", table);
      debugOutput.put("key", key);
      debugOutput.put("result", returnValue);
      LOGGER.trace(
          "get operation result: " + JsonUtil.serializeMap(debugOutput, JsonUtil.Flag.PrettyPrint));
    }

    updateStats(true, false);
    return returnValue;
  }
Пример #6
0
  @Override
  public boolean remove(final DatabaseTable table, final String key) throws DatabaseException {
    if (traceLogging) {
      LOGGER.trace("attempting remove operation for table=" + table + ", key=" + key);
    }

    boolean result = contains(table, key);
    if (result) {
      final StringBuilder sqlText = new StringBuilder();
      sqlText.append("DELETE FROM ").append(table.toString()).append(" WHERE " + KEY_COLUMN + "=?");

      PreparedStatement statement = null;
      try {
        statement = connection.prepareStatement(sqlText.toString());
        statement.setString(1, key);
        statement.executeUpdate();
        LOGGER.trace("remove operation succeeded for table=" + table + ", key=" + key);
      } catch (SQLException e) {
        final ErrorInformation errorInformation =
            new ErrorInformation(
                PwmError.ERROR_DB_UNAVAILABLE, "remove operation failed: " + e.getMessage());
        lastError = errorInformation;
        throw new DatabaseException(errorInformation);
      } finally {
        close(statement);
      }
    }

    if (traceLogging) {
      final Map<String, Object> debugOutput = new LinkedHashMap<>();
      debugOutput.put("table", table);
      debugOutput.put("key", key);
      debugOutput.put("result", result);
      LOGGER.trace(
          "remove operation result: "
              + JsonUtil.serializeMap(debugOutput, JsonUtil.Flag.PrettyPrint));
    }

    updateStats(true, false);
    return result;
  }
Пример #7
0
  private static void initTable(
      final Connection connection, final DatabaseTable table, final DBConfiguration dbConfiguration)
      throws DatabaseException {
    try {
      checkIfTableExists(connection, table);
      LOGGER.trace("table " + table + " appears to exist");
    } catch (SQLException e) { // assume error was due to table missing;
      {
        final StringBuilder sqlString = new StringBuilder();
        sqlString.append("CREATE table ").append(table.toString()).append(" (").append("\n");
        sqlString
            .append("  " + KEY_COLUMN + " ")
            .append(dbConfiguration.getColumnTypeKey())
            .append("(")
            .append(KEY_COLUMN_LENGTH)
            .append(") NOT NULL PRIMARY KEY,")
            .append("\n");
        sqlString
            .append("  " + VALUE_COLUMN + " ")
            .append(dbConfiguration.getColumnTypeValue())
            .append(" ");
        sqlString.append("\n");
        sqlString.append(")").append("\n");

        LOGGER.trace(
            "attempting to execute the following sql statement:\n " + sqlString.toString());

        Statement statement = null;
        try {
          statement = connection.createStatement();
          statement.execute(sqlString.toString());
          LOGGER.debug("created table " + table.toString());
        } catch (SQLException ex) {
          LOGGER.error("error creating new table " + table.toString() + ": " + ex.getMessage());
        } finally {
          close(statement);
        }
      }

      {
        final String indexName = table.toString() + "_IDX";
        final StringBuilder sqlString = new StringBuilder();
        sqlString.append("CREATE index ").append(indexName);
        sqlString.append(" ON ").append(table.toString());
        sqlString.append(" (").append(KEY_COLUMN).append(")");
        Statement statement = null;

        LOGGER.trace(
            "attempting to execute the following sql statement:\n " + sqlString.toString());

        try {
          statement = connection.createStatement();
          statement.execute(sqlString.toString());
          LOGGER.debug("created index " + indexName);
        } catch (SQLException ex) {
          LOGGER.error("error creating new index " + indexName + ": " + ex.getMessage());
        } finally {
          close(statement);
        }
      }
    }
  }