Examples with ComparableStringArray org.apache.druid.segment.data.ComparableStringArray used on opensource projects

Example 1 with ComparableStringArray

use of org.apache.druid.segment.data.ComparableStringArray in project druid by druid-io.

the class GroupByQuery method compareDimsForLimitPushDown.

private static int compareDimsForLimitPushDown(final IntList fields, final List<Boolean> needsReverseList, final List<ColumnType> dimensionTypes, final List<StringComparator> comparators, final ResultRow lhs, final ResultRow rhs) {
    for (int i = 0; i < fields.size(); i++) {
        final int fieldNumber = fields.getInt(i);
        final StringComparator comparator = comparators.get(i);
        final ColumnType dimensionType = dimensionTypes.get(i);
        final int dimCompare;
        final Object lhsObj = lhs.get(fieldNumber);
        final Object rhsObj = rhs.get(fieldNumber);
        if (dimensionType.isNumeric()) {
            if (comparator.equals(StringComparators.NUMERIC)) {
                dimCompare = DimensionHandlerUtils.compareObjectsAsType(lhsObj, rhsObj, dimensionType);
            } else {
                dimCompare = comparator.compare(String.valueOf(lhsObj), String.valueOf(rhsObj));
            }
        } else if (dimensionType.equals(ColumnType.STRING_ARRAY)) {
            final ComparableStringArray lhsArr = DimensionHandlerUtils.convertToComparableStringArray(lhsObj);
            final ComparableStringArray rhsArr = DimensionHandlerUtils.convertToComparableStringArray(rhsObj);
            dimCompare = Comparators.<Comparable>naturalNullsFirst().compare(lhsArr, rhsArr);
        } else if (dimensionType.equals(ColumnType.LONG_ARRAY) || dimensionType.equals(ColumnType.DOUBLE_ARRAY)) {
            final ComparableList lhsArr = DimensionHandlerUtils.convertToList(lhsObj);
            final ComparableList rhsArr = DimensionHandlerUtils.convertToList(rhsObj);
            dimCompare = Comparators.<Comparable>naturalNullsFirst().compare(lhsArr, rhsArr);
        } else {
            dimCompare = comparator.compare((String) lhsObj, (String) rhsObj);
        }
        if (dimCompare != 0) {
            return needsReverseList.get(i) ? -dimCompare : dimCompare;
        }
    }
    return 0;
}