Examples with ROW io.prestosql.spi.type.StandardTypes.ROW used on opensource projects

Example 1 with ROW

use of io.prestosql.spi.type.StandardTypes.ROW in project hetu-core by openlookeng.

the class RcFileTester method preprocessWriteValueOld.

private static Object preprocessWriteValueOld(Format format, Type type, Object value) {
    if (value == null) {
        return null;
    }
    if (type.equals(BOOLEAN)) {
        return value;
    }
    if (type.equals(TINYINT)) {
        return ((Number) value).byteValue();
    }
    if (type.equals(SMALLINT)) {
        return ((Number) value).shortValue();
    }
    if (type.equals(INTEGER)) {
        return ((Number) value).intValue();
    }
    if (type.equals(BIGINT)) {
        return ((Number) value).longValue();
    }
    if (type.equals(REAL)) {
        return ((Number) value).floatValue();
    }
    if (type.equals(DOUBLE)) {
        return ((Number) value).doubleValue();
    }
    if (type instanceof VarcharType) {
        return value;
    }
    if (type.equals(VARBINARY)) {
        return ((SqlVarbinary) value).getBytes();
    }
    if (type.equals(DATE)) {
        return Date.ofEpochDay(((SqlDate) value).getDays());
    }
    if (type.equals(TIMESTAMP)) {
        long millis = ((SqlTimestamp) value).getMillis();
        if (format == Format.BINARY) {
            millis = HIVE_STORAGE_TIME_ZONE.convertLocalToUTC(millis, false);
        }
        return Timestamp.ofEpochMilli(millis);
    }
    if (type instanceof DecimalType) {
        return HiveDecimal.create(((SqlDecimal) value).toBigDecimal());
    }
    if (type.getTypeSignature().getBase().equals(ARRAY)) {
        Type elementType = type.getTypeParameters().get(0);
        return ((List<?>) value).stream().map(element -> preprocessWriteValueOld(format, elementType, element)).collect(toList());
    }
    if (type.getTypeSignature().getBase().equals(MAP)) {
        Type keyType = type.getTypeParameters().get(0);
        Type valueType = type.getTypeParameters().get(1);
        Map<Object, Object> newMap = new HashMap<>();
        for (Entry<?, ?> entry : ((Map<?, ?>) value).entrySet()) {
            newMap.put(preprocessWriteValueOld(format, keyType, entry.getKey()), preprocessWriteValueOld(format, valueType, entry.getValue()));
        }
        return newMap;
    }
    if (type.getTypeSignature().getBase().equals(ROW)) {
        List<?> fieldValues = (List<?>) value;
        List<Type> fieldTypes = type.getTypeParameters();
        List<Object> newStruct = new ArrayList<>();
        for (int fieldId = 0; fieldId < fieldValues.size(); fieldId++) {
            newStruct.add(preprocessWriteValueOld(format, fieldTypes.get(fieldId), fieldValues.get(fieldId)));
        }
        return newStruct;
    }
    throw new IllegalArgumentException("unsupported type: " + type);
}

Example 2 with ROW

use of io.prestosql.spi.type.StandardTypes.ROW in project hetu-core by openlookeng.

the class TestRowParametricType method testTypeSignatureRoundTrip.

@Test
public void testTypeSignatureRoundTrip() {
    TypeManager typeManager = new InternalTypeManager(createTestMetadataManager().getFunctionAndTypeManager());
    TypeSignature typeSignature = new TypeSignature(ROW, TypeSignatureParameter.of(new NamedTypeSignature(Optional.of(new RowFieldName("col1", false)), new TypeSignature(BIGINT))), TypeSignatureParameter.of(new NamedTypeSignature(Optional.of(new RowFieldName("col2", true)), new TypeSignature(DOUBLE))));
    List<TypeParameter> parameters = typeSignature.getParameters().stream().map(parameter -> TypeParameter.of(parameter, typeManager)).collect(Collectors.toList());
    Type rowType = RowParametricType.ROW.createType(typeManager, parameters);
    assertEquals(rowType.getTypeSignature(), typeSignature);
}