コード例 #1
0
  protected ReportParameterValue[] getParamValuesFromDataSource(
      ReportParameter param, Map<String, Object> parameters) throws ProviderException {
    Connection conn = null;
    PreparedStatement pStmt = null;
    ResultSet rs = null;

    try {
      ReportDataSource dataSource = param.getDataSource();
      conn = dataSourceProvider.getConnection(dataSource.getId());

      if (parameters == null || parameters.isEmpty()) {
        pStmt = conn.prepareStatement(param.getData());
      } else {
      }

      rs = pStmt.executeQuery();

      ResultSetMetaData rsMetaData = rs.getMetaData();

      boolean multipleColumns = false;
      if (rsMetaData.getColumnCount() > 1) multipleColumns = true;

      ArrayList<ReportParameterValue> v = new ArrayList<ReportParameterValue>();

      while (rs.next()) {
        ReportParameterValue value = new ReportParameterValue();

        if (param.getClassName().equals("java.lang.String")) {
          value.setId(rs.getString(1));
        } else if (param.getClassName().equals("java.lang.Double")) {
          value.setId(new Double(rs.getDouble(1)));
        } else if (param.getClassName().equals("java.lang.Integer")) {
          value.setId(new Integer(rs.getInt(1)));
        } else if (param.getClassName().equals("java.lang.Long")) {
          value.setId(new Long(rs.getLong(1)));
        } else if (param.getClassName().equals("java.math.BigDecimal")) {
          value.setId(rs.getBigDecimal(1));
        } else if (param.getClassName().equals("java.util.Date")) {
          value.setId(rs.getDate(1));
        } else if (param.getClassName().equals("java.sql.Date")) {
          value.setId(rs.getDate(1));
        } else if (param.getClassName().equals("java.sql.Timestamp")) {
          value.setId(rs.getTimestamp(1));
        }

        if (multipleColumns) {
          value.setDescription(rs.getString(2));
        }

        v.add(value);
      }

      rs.close();

      ReportParameterValue[] values = new ReportParameterValue[v.size()];
      v.toArray(values);

      return values;
    } catch (Exception e) {
      throw new ProviderException("Error retreiving param values from database: " + e.getMessage());
    } finally {
      try {
        if (pStmt != null) pStmt.close();
        if (conn != null) conn.close();
      } catch (Exception c) {
        log.error("Error closing");
      }
    }
  }