Examples with PreviousValue org.apache.nifi.history.PreviousValue used on opensource projects

Example 1 with PreviousValue

use of org.apache.nifi.history.PreviousValue in project nifi by apache.

the class StandardNiFiServiceFacade method getComponentHistory.

@Override
public ComponentHistoryDTO getComponentHistory(final String componentId) {
    final Map<String, PropertyHistoryDTO> propertyHistoryDtos = new LinkedHashMap<>();
    final Map<String, List<PreviousValue>> propertyHistory = auditService.getPreviousValues(componentId);
    for (final Map.Entry<String, List<PreviousValue>> entry : propertyHistory.entrySet()) {
        final List<PreviousValueDTO> previousValueDtos = new ArrayList<>();
        for (final PreviousValue previousValue : entry.getValue()) {
            final PreviousValueDTO dto = new PreviousValueDTO();
            dto.setPreviousValue(previousValue.getPreviousValue());
            dto.setTimestamp(previousValue.getTimestamp());
            dto.setUserIdentity(previousValue.getUserIdentity());
            previousValueDtos.add(dto);
        }
        if (!previousValueDtos.isEmpty()) {
            final PropertyHistoryDTO propertyHistoryDto = new PropertyHistoryDTO();
            propertyHistoryDto.setPreviousValues(previousValueDtos);
            propertyHistoryDtos.put(entry.getKey(), propertyHistoryDto);
        }
    }
    final ComponentHistoryDTO history = new ComponentHistoryDTO();
    history.setComponentId(componentId);
    history.setPropertyHistory(propertyHistoryDtos);
    return history;
}

Example 2 with PreviousValue

use of org.apache.nifi.history.PreviousValue in project nifi by apache.

the class StandardActionDAO method getPreviousValuesForProperty.

private List<PreviousValue> getPreviousValuesForProperty(final String componentId, final String property) {
    List<PreviousValue> previousValues = new ArrayList<>();
    PreparedStatement statement = null;
    ResultSet rs = null;
    try {
        // create the statement
        statement = connection.prepareStatement(SELECT_PREVIOUS_VALUES);
        statement.setString(1, componentId);
        statement.setString(2, property);
        // execute the query
        rs = statement.executeQuery();
        // ensure results
        while (rs.next()) {
            // get the previous value
            final PreviousValue previousValue = new PreviousValue();
            previousValue.setPreviousValue(rs.getString("VALUE"));
            previousValue.setTimestamp(new Date(rs.getTimestamp("ACTION_TIMESTAMP").getTime()));
            previousValue.setUserIdentity(rs.getString("IDENTITY"));
            previousValues.add(previousValue);
        }
    } catch (SQLException sqle) {
        throw new DataAccessException(sqle);
    } finally {
        RepositoryUtils.closeQuietly(rs);
        RepositoryUtils.closeQuietly(statement);
    }
    return previousValues;
}