Examples with OrcRecordReaderOptions com.facebook.presto.orc.OrcRecordReaderOptions used on opensource projects

Example 1 with OrcRecordReaderOptions

use of com.facebook.presto.orc.OrcRecordReaderOptions in project presto by prestodb.

the class SelectiveStreamReaders method createStreamReader.

public static SelectiveStreamReader createStreamReader(StreamDescriptor streamDescriptor, Map<Subfield, TupleDomainFilter> filters, Optional<Type> outputType, List<Subfield> requiredSubfields, DateTimeZone hiveStorageTimeZone, OrcRecordReaderOptions options, boolean legacyMapSubscript, OrcAggregatedMemoryContext systemMemoryContext) {
    OrcTypeKind type = streamDescriptor.getOrcTypeKind();
    switch(type) {
        case BOOLEAN:
            {
                checkArgument(requiredSubfields.isEmpty(), "Boolean stream reader doesn't support subfields");
                verifyStreamType(streamDescriptor, outputType, BooleanType.class::isInstance);
                return new BooleanSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType.isPresent(), systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
            }
        case BYTE:
            {
                checkArgument(requiredSubfields.isEmpty(), "Byte stream reader doesn't support subfields");
                verifyStreamType(streamDescriptor, outputType, TinyintType.class::isInstance);
                return new ByteSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType.isPresent(), systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
            }
        case SHORT:
        case INT:
        case LONG:
        case DATE:
            {
                checkArgument(requiredSubfields.isEmpty(), "Primitive type stream reader doesn't support subfields");
                verifyStreamType(streamDescriptor, outputType, t -> t instanceof BigintType || t instanceof IntegerType || t instanceof SmallintType || t instanceof DateType);
                return new LongSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType, systemMemoryContext);
            }
        case FLOAT:
            {
                checkArgument(requiredSubfields.isEmpty(), "Float type stream reader doesn't support subfields");
                verifyStreamType(streamDescriptor, outputType, RealType.class::isInstance);
                return new FloatSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType.isPresent(), systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
            }
        case DOUBLE:
            checkArgument(requiredSubfields.isEmpty(), "Double stream reader doesn't support subfields");
            verifyStreamType(streamDescriptor, outputType, DoubleType.class::isInstance);
            return new DoubleSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType.isPresent(), systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
        case BINARY:
        case STRING:
        case VARCHAR:
        case CHAR:
            checkArgument(requiredSubfields.isEmpty(), "Primitive stream reader doesn't support subfields");
            verifyStreamType(streamDescriptor, outputType, t -> t instanceof VarcharType || t instanceof CharType || t instanceof VarbinaryType);
            return new SliceSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType, systemMemoryContext);
        case TIMESTAMP:
            {
                checkArgument(requiredSubfields.isEmpty(), "Timestamp stream reader doesn't support subfields");
                verifyStreamType(streamDescriptor, outputType, TimestampType.class::isInstance);
                return new TimestampSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), hiveStorageTimeZone, outputType.isPresent(), systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()), options);
            }
        case LIST:
            verifyStreamType(streamDescriptor, outputType, ArrayType.class::isInstance);
            return new ListSelectiveStreamReader(streamDescriptor, filters, requiredSubfields, null, 0, outputType, hiveStorageTimeZone, options, legacyMapSubscript, systemMemoryContext);
        case STRUCT:
            verifyStreamType(streamDescriptor, outputType, RowType.class::isInstance);
            return new StructSelectiveStreamReader(streamDescriptor, filters, requiredSubfields, outputType, hiveStorageTimeZone, options, legacyMapSubscript, systemMemoryContext);
        case MAP:
            verifyStreamType(streamDescriptor, outputType, MapType.class::isInstance);
            return new MapSelectiveStreamReader(streamDescriptor, filters, requiredSubfields, outputType, hiveStorageTimeZone, options, legacyMapSubscript, systemMemoryContext);
        case DECIMAL:
            {
                verifyStreamType(streamDescriptor, outputType, DecimalType.class::isInstance);
                if (streamDescriptor.getOrcType().getPrecision().get() <= MAX_SHORT_PRECISION) {
                    return new ShortDecimalSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType, systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
                } else {
                    return new LongDecimalSelectiveStreamReader(streamDescriptor, getOptionalOnlyFilter(type, filters), outputType, systemMemoryContext.newOrcLocalMemoryContext(SelectiveStreamReaders.class.getSimpleName()));
                }
            }
        case UNION:
        default:
            throw new IllegalArgumentException("Unsupported type: " + type);
    }
}