Ejemplo n.º 1
0
  /**
   * Modifies a record in the Database Server using the provided modify request.
   *
   * @param request The modify request.
   * @return The result of the operation.
   * @throws ErrorResultException If the result code indicates that the request failed for some
   *     reason.
   * @throws SQLException If the SQL query has an invalid format.
   * @throws NullPointerException If {@code request} was {@code null}, or if a corresponding mapping
   *     value could not be found in the mapping component.
   */
  @Override
  public Result modify(final ModifyRequest request) {
    Result r;
    try {
      // Split up the DN the of the request.
      final DN DN = request.getName();
      final RDN rDN = DN.rdn();
      final String filterAttributeName = rDN.getFirstAVA().getAttributeType().getNameOrOID();
      final String filterAttributeValue = rDN.getFirstAVA().getAttributeValue().toString();
      final RDN OU = DN.parent(1).rdn();
      final String OUName = OU.getFirstAVA().getAttributeValue().toString();
      final String baseDN = DN.parent(2).toString();

      // Search mapping for the corresponding table and column names.
      final String tableName = jdbcm.getTableNameFromMapping(baseDN, OUName);

      if (tableName == null)
        throw new NullPointerException(
            "JDBC Error: Could not find matching table name for OU: '"
                + OUName
                + "' in DN: '"
                + baseDN
                + "'. Please check if mapping was succesful.");
      final String columnName =
          jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, filterAttributeName);

      if (columnName == null)
        throw new NullPointerException(
            "JDBC Error: Could not find matching column name for attribute: '"
                + filterAttributeName
                + "'. Please check if mapping was succesful.");

      // Get attribute and modificationtype for each modification.
      // Search mapping for the corresponding column name for the modification attribute.
      final List<Modification> modificationList = request.getModifications();
      final ListIterator<Modification> listIter = modificationList.listIterator();
      String modificationString = "";

      while (listIter.hasNext()) {
        final Modification modification = listIter.next();
        final ModificationType modificationType = modification.getModificationType();
        final Attribute modificationAttribute = modification.getAttribute();
        final String modificationAttributeName =
            modificationAttribute.getAttributeDescription().toString();
        final String modificationColumnName =
            jdbcm.getColumnNameFromMapping(tableName, baseDN, OUName, modificationAttributeName);

        if (modificationColumnName == null)
          throw new NullPointerException(
              "JDBC Error: Could not find matching column name for attribute: '"
                  + modificationAttributeName
                  + "'. Please check if mapping was succesful.");
        String modificationAttributeValue = "";

        if (modificationType == ModificationType.ADD) {
          final Iterator<ByteString> iter = modificationAttribute.iterator();

          int counter = 0;
          while (iter.hasNext()) {
            if (counter > 0) modificationAttributeValue = modificationAttributeValue.concat(", ");
            modificationAttributeValue = modificationAttributeValue.concat(iter.next().toString());
            counter++;
          }
          final Object classType = jdbcm.getTableColumnDataType(tableName, modificationColumnName);

          if (classType == Integer.class)
            modificationAttributeValue =
                "(CASE WHEN ("
                    + modificationColumnName
                    + " = 0) THEN ' "
                    + modificationAttributeValue
                    + "' ELSE concat("
                    + modificationColumnName
                    + ", ', "
                    + modificationAttributeValue
                    + "') END)";
          else
            modificationAttributeValue =
                "(CASE WHEN ("
                    + modificationColumnName
                    + " = 'Default Value') THEN ' "
                    + modificationAttributeValue
                    + "' ELSE concat("
                    + modificationColumnName
                    + ", ', "
                    + modificationAttributeValue
                    + "') END)";
        } else if (modificationType == ModificationType.REPLACE) {
          final Iterator<ByteString> iter = modificationAttribute.iterator();

          while (iter.hasNext()) {
            modificationAttributeValue = "'" + iter.next().toString() + "'";
          }
        } else {
          final boolean nullable = jdbcm.getTableColumnNullable(tableName, modificationColumnName);

          if (nullable == false)
            throw new SQLException("Cannot delete data from not-nullable column.");
          final Object classType = jdbcm.getTableColumnDataType(tableName, modificationColumnName);

          if (classType == Integer.class)
            modificationAttributeValue = "'" + Integer.toString(0) + "'";
          else modificationAttributeValue = "'Default Value'";
        }
        modificationString =
            modificationString.concat(
                modificationColumnName + "=" + modificationAttributeValue + ", ");
      }
      modificationString = modificationString.substring(0, modificationString.length() - 2);

      // Build the SQL query.
      final Statement st = connection.createStatement();
      final String sql =
          "UPDATE "
              + tableName
              + " SET "
              + modificationString
              + " WHERE "
              + columnName
              + "='"
              + filterAttributeValue
              + "'";
      st.executeUpdate(sql);
      r = Responses.newResult(ResultCode.SUCCESS);
    } catch (SQLException e) {
      System.out.println(e.toString());
      r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
      r.setCause(e);
    } catch (NullPointerException e) {
      System.out.println(e.toString());
      r = Responses.newCompareResult(ResultCode.OPERATIONS_ERROR);
      r.setCause(e);
    }
    return r;
  }
Ejemplo n.º 2
0
  /**
   * Adds a record to the Database Server using the provided add request.
   *
   * @param request The add request.
   * @return The result of the operation.
   * @throws ErrorResultException If the result code indicates that the request failed for some
   *     reason.
   * @throws SQLException If the SQL query has an invalid format.
   * @throws NullPointerException If {@code request} was {@code null}, or if a corresponding mapping
   *     value could not be found in the mapping component.
   */
  @Override
  public Result add(final AddRequest request) throws ErrorResultException {
    Result r;
    try {
      // Split up the DN the of the request.
      final DN DN = request.getName();
      final RDN rDN = DN.rdn();
      final String rDNName = rDN.getFirstAVA().getAttributeType().getNameOrOID();
      final String rDNValue = rDN.getFirstAVA().getAttributeValue().toString();
      final RDN OU = DN.parent().rdn();
      final String organizationalUnitName = OU.getFirstAVA().getAttributeValue().toString();
      final String baseDN = DN.parent(2).toString();

      // Search mapping for the corresponding table and column names.
      final String tableName = jdbcm.getTableNameFromMapping(baseDN, organizationalUnitName);

      if (tableName == null)
        throw new NullPointerException(
            "JDBC Error: Could not find matching table name for OU: '"
                + organizationalUnitName
                + "' in DN: '"
                + baseDN
                + "'. Please check if mapping was succesful.");
      final String rDNColumnName =
          jdbcm.getColumnNameFromMapping(tableName, baseDN, organizationalUnitName, rDNName);

      if (rDNColumnName == null)
        throw new NullPointerException(
            "JDBC Error: Could not find matching column name for attribute: '"
                + rDNName
                + "'. Please check if mapping was succesful.");
      final Map<String, Object> columnValuesMap = new HashMap<String, Object>();
      final Iterable<Attribute> attributesCollection = request.getAllAttributes();
      final Iterator<Attribute> attributeIter = attributesCollection.iterator();

      // Search mapping for the corresponding column name for each attribute.
      while (attributeIter.hasNext()) {
        final Attribute att = attributeIter.next();
        final Iterator<ByteString> valueIter = att.iterator();
        final String attributeName = att.getAttributeDescriptionAsString();

        if (attributeName == "objectClass") continue;
        final String columnName =
            jdbcm.getColumnNameFromMapping(
                tableName, baseDN, organizationalUnitName, attributeName);

        if (columnName == null)
          throw new NullPointerException(
              "JDBC Error: Could not find matching column name for attribute: '"
                  + attributeName
                  + "'. Please check if mapping was succesful.");
        String columnValue = "";

        while (valueIter.hasNext()) {
          columnValue = columnValue.concat(valueIter.next().toString());
        }
        columnValuesMap.put(columnName, columnValue);
      }

      // Build the SQL values String.
      final ArrayList<String> columnList = jdbcm.getTableColumns(tableName);
      String columnNamesString = " (" + rDNColumnName;
      String columnValuesString = " ('" + rDNValue + "'";

      for (int i = 0; i < columnList.size(); i++) {
        final String columnName = columnList.get(i);

        if (columnNamesString.contains(columnName)) continue;
        final Object columnDataType = jdbcm.getTableColumnDataType(tableName, columnName);
        Object columnValue = columnValuesMap.get(columnName);

        if (columnValue == null) {
          boolean columnNullable = jdbcm.getTableColumnNullable(tableName, columnName);

          if (columnNullable) continue;

          if (columnDataType.equals(Integer.class)) columnValue = "0";
          else columnValue = "Default Value";
        }

        if (columnDataType.equals(Integer.class))
          columnValue = Integer.parseInt(columnValue.toString());
        columnNamesString = columnNamesString.concat(", " + columnName);
        columnValuesString = columnValuesString.concat(", '" + columnValue + "'");
      }
      columnNamesString = columnNamesString.concat(")");
      columnValuesString = columnValuesString.concat(")");

      // Build the SQL query.
      final Statement st = connection.createStatement();
      final String sql =
          "INSERT INTO " + tableName + columnNamesString + " VALUES" + columnValuesString;
      st.executeUpdate(sql);
      r = Responses.newResult(ResultCode.SUCCESS);
    } catch (SQLException e) {
      System.out.println(e.toString());
      r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
      r.setCause(e);
    } catch (NullPointerException e) {
      System.out.println(e.toString());
      r = Responses.newResult(ResultCode.OPERATIONS_ERROR);
      r.setCause(e);
    }
    return r;
  }