Example usage for org.apache.lucene.search PointRangeQuery getLowerPoint

Introduction

In this page you can find the example usage for org.apache.lucene.search PointRangeQuery getLowerPoint.

Prototype

public byte[] getLowerPoint() 

Source Link

Usage

From source file:org.elasticsearch.search.aggregations.bucket.composite.LongValuesSource.java

License:Apache License

@Override
SortedDocsProducer createSortedDocsProducerOrNull(IndexReader reader, Query query) {
    if (checkIfSortedDocsIsApplicable(reader, fieldType) == false
            || (query != null && query.getClass() != MatchAllDocsQuery.class &&
            // if the query is a range query over the same field
                    (query instanceof PointRangeQuery
                            && fieldType.name().equals((((PointRangeQuery) query).getField()))) == false)) {
        return null;
    }/* w  w  w .  j a  v a  2 s .c  o  m*/
    final byte[] lowerPoint;
    final byte[] upperPoint;
    if (query instanceof PointRangeQuery) {
        final PointRangeQuery rangeQuery = (PointRangeQuery) query;
        lowerPoint = rangeQuery.getLowerPoint();
        upperPoint = rangeQuery.getUpperPoint();
    } else {
        lowerPoint = null;
        upperPoint = null;
    }

    if (fieldType instanceof NumberFieldMapper.NumberFieldType) {
        NumberFieldMapper.NumberFieldType ft = (NumberFieldMapper.NumberFieldType) fieldType;
        final ToLongFunction<byte[]> toBucketFunction;

        switch (ft.typeName()) {
        case "long":
            toBucketFunction = (value) -> rounding.applyAsLong(LongPoint.decodeDimension(value, 0));
            break;

        case "int":
        case "short":
        case "byte":
            toBucketFunction = (value) -> rounding.applyAsLong(IntPoint.decodeDimension(value, 0));
            break;

        default:
            return null;
        }
        return new PointsSortedDocsProducer(fieldType.name(), toBucketFunction, lowerPoint, upperPoint);
    } else if (fieldType instanceof DateFieldMapper.DateFieldType) {
        final ToLongFunction<byte[]> toBucketFunction = (value) -> rounding
                .applyAsLong(LongPoint.decodeDimension(value, 0));
        return new PointsSortedDocsProducer(fieldType.name(), toBucketFunction, lowerPoint, upperPoint);
    } else {
        return null;
    }
}

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