Exemplo n.º 1
0
  /** Converts a raw row into its (possibly partial) dimension and complete metric values */
  private StarTreeTableRow extractValues(GenericRow row) {
    List<Integer> dimensions = new ArrayList<Integer>();
    for (String dimensionName : schema.getDimensionNames()) {
      Integer valueId;
      if (schema.getFieldSpecFor(dimensionName).isSingleValueField()
          && !starTreeIndexSpec.getExcludedDimensions().contains(dimensionName)) {
        Object value = row.getValue(dimensionName);
        valueId = dictionaryCreatorMap.get(dimensionName).indexOfSV(value);
      } else {
        // Multi-value fields are not supported - always ALL
        valueId = V1Constants.STARTREE_ALL_NUMBER.intValue();
      }

      dimensions.add(valueId);
    }

    List<Number> metrics = new ArrayList<Number>(schema.getMetricNames().size());
    for (MetricFieldSpec metricFieldSpec : schema.getMetricFieldSpecs()) {
      Object value = row.getValue(metricFieldSpec.getName());
      switch (metricFieldSpec.getDataType()) {
        case INT:
          metrics.add((Integer) value);
          break;
        case LONG:
          metrics.add((Long) value);
          break;
        case DOUBLE:
          metrics.add((Double) value);
          break;
        case FLOAT:
          metrics.add((Float) value);
          break;
        default:
          throw new IllegalStateException("Unsupported data type " + metricFieldSpec.getDataType());
      }
    }

    return new StarTreeTableRow(dimensions, metrics);
  }
Exemplo n.º 2
0
  /** Constructs the segment metadata file, and writes in outputDir */
  private void writeMetadata(File outputDir, int totalDocs) throws ConfigurationException {
    final PropertiesConfiguration properties =
        new PropertiesConfiguration(
            new File(outputDir, V1Constants.MetadataKeys.METADATA_FILE_NAME));

    properties.setProperty(SEGMENT_NAME, segmentName);
    properties.setProperty(TABLE_NAME, config.getTableName());
    properties.setProperty(DIMENSIONS, config.getDimensions());
    properties.setProperty(METRICS, config.getMetrics());
    properties.setProperty(TIME_COLUMN_NAME, config.getTimeColumnName());
    properties.setProperty(TIME_INTERVAL, "not_there");
    properties.setProperty(SEGMENT_TOTAL_DOCS, String.valueOf(totalDocs));

    // StarTree
    Joiner csv = Joiner.on(",");
    properties.setProperty(SPLIT_ORDER, csv.join(splitOrder));
    properties.setProperty(SPLIT_EXCLUDES, csv.join(starTreeIndexSpec.getSplitExcludes()));
    properties.setProperty(MAX_LEAF_RECORDS, starTreeIndexSpec.getMaxLeafRecords());
    properties.setProperty(
        EXCLUDED_DIMENSIONS, csv.join(starTreeIndexSpec.getExcludedDimensions()));

    String timeColumn = config.getTimeColumnName();
    if (columnInfo.get(timeColumn) != null) {
      properties.setProperty(SEGMENT_START_TIME, columnInfo.get(timeColumn).getMin());
      properties.setProperty(SEGMENT_END_TIME, columnInfo.get(timeColumn).getMax());
      properties.setProperty(TIME_UNIT, config.getTimeUnitForSegment());
    }

    if (config.containsKey(SEGMENT_START_TIME)) {
      properties.setProperty(SEGMENT_START_TIME, config.getStartTime());
    }
    if (config.containsKey(SEGMENT_END_TIME)) {
      properties.setProperty(SEGMENT_END_TIME, config.getStartTime());
    }
    if (config.containsKey(TIME_UNIT)) {
      properties.setProperty(TIME_UNIT, config.getTimeUnitForSegment());
    }

    for (final String key : config.getAllCustomKeyValuePair().keySet()) {
      properties.setProperty(key, config.getAllCustomKeyValuePair().get(key));
    }

    for (final String column : columnInfo.keySet()) {
      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, CARDINALITY),
          String.valueOf(columnInfo.get(column).getSortedUniqueElementsArray().length));
      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, TOTAL_DOCS), String.valueOf(totalDocs));
      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, DATA_TYPE),
          schema.getFieldSpecFor(column).getDataType().toString());
      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, BITS_PER_ELEMENT),
          String.valueOf(
              SingleValueUnsortedForwardIndexCreator.getNumOfBits(
                  columnInfo.get(column).getSortedUniqueElementsArray().length)));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, DICTIONARY_ELEMENT_SIZE),
          String.valueOf(dictionaryCreatorMap.get(column).getStringColumnMaxLength()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, COLUMN_TYPE),
          String.valueOf(schema.getFieldSpecFor(column).getFieldType().toString()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, IS_SORTED),
          String.valueOf(columnInfo.get(column).isSorted()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, HAS_NULL_VALUE),
          String.valueOf(columnInfo.get(column).hasNulls()));
      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(
              column, V1Constants.MetadataKeys.Column.HAS_DICTIONARY),
          String.valueOf(columnInfo.get(column).isCreateDictionary()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, HAS_INVERTED_INDEX),
          String.valueOf(true));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, IS_SINGLE_VALUED),
          String.valueOf(schema.getFieldSpecFor(column).isSingleValueField()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, MAX_MULTI_VALUE_ELEMTS),
          String.valueOf(columnInfo.get(column).getMaxNumberOfMutiValueElements()));

      properties.setProperty(
          V1Constants.MetadataKeys.Column.getKeyFor(column, TOTAL_NUMBER_OF_ENTRIES),
          String.valueOf(columnInfo.get(column).getTotalNumberOfEntries()));
    }

    properties.save();
  }