Examples with BytesRange com.facebook.presto.common.predicate.TupleDomainFilter.BytesRange used on opensource projects

Example 1 with BytesRange

use of com.facebook.presto.common.predicate.TupleDomainFilter.BytesRange in project presto by prestodb.

the class TupleDomainFilterUtils method toFilter.

public static TupleDomainFilter toFilter(Domain domain) {
    ValueSet values = domain.getValues();
    boolean nullAllowed = domain.isNullAllowed();
    if (values.isAll()) {
        checkArgument(!nullAllowed, "Unexpected allways-true filter");
        return IS_NOT_NULL;
    }
    if (values.isNone()) {
        checkArgument(nullAllowed, "Unexpected allways-false filter");
        return IS_NULL;
    }
    checkArgument(values instanceof SortedRangeSet, "Unexpected domain type: " + values.getClass().getSimpleName());
    List<Range> ranges = ((SortedRangeSet) values).getOrderedRanges();
    if (ranges.isEmpty() && nullAllowed) {
        return IS_NULL;
    }
    Type type = domain.getType();
    if (ranges.size() == 1) {
        return createRangeFilter(type, ranges.get(0), nullAllowed);
    }
    if (type == BOOLEAN) {
        return createBooleanFilter(ranges, nullAllowed);
    }
    List<TupleDomainFilter> rangeFilters = ranges.stream().map(range -> createRangeFilter(type, range, false)).filter(rangeFilter -> !rangeFilter.equals(ALWAYS_FALSE)).collect(toList());
    if (rangeFilters.isEmpty()) {
        return nullAllowed ? IS_NULL : ALWAYS_FALSE;
    }
    TupleDomainFilter firstRangeFilter = rangeFilters.get(0);
    if (firstRangeFilter instanceof BigintRange) {
        List<BigintRange> bigintRanges = rangeFilters.stream().map(BigintRange.class::cast).collect(toList());
        if (bigintRanges.stream().allMatch(BigintRange::isSingleValue)) {
            return toBigintValues(bigintRanges.stream().mapToLong(BigintRange::getLower).toArray(), nullAllowed);
        }
        return BigintMultiRange.of(bigintRanges, nullAllowed);
    }
    if (firstRangeFilter instanceof BytesRange) {
        List<BytesRange> bytesRanges = rangeFilters.stream().map(BytesRange.class::cast).collect(toList());
        if (bytesRanges.stream().allMatch(BytesRange::isSingleValue)) {
            return BytesValues.of(bytesRanges.stream().map(BytesRange::getLower).toArray(byte[][]::new), nullAllowed);
        }
        if (isNotIn(ranges)) {
            return BytesValuesExclusive.of(bytesRanges.stream().map(BytesRange::getLower).filter(Objects::nonNull).toArray(byte[][]::new), nullAllowed);
        }
    }
    if (firstRangeFilter instanceof DoubleRange || firstRangeFilter instanceof FloatRange) {
        // != and NOT IN filters should return true when applied to NaN
        // E.g. NaN != 1.0 as well as NaN NOT IN (1.0, 2.5, 3.6) should return true; otherwise false.
        boolean nanAllowed = isNotIn(ranges);
        return MultiRange.of(rangeFilters, nullAllowed, nanAllowed);
    }
    return MultiRange.of(rangeFilters, nullAllowed, false);
}