Examples with TypeSignatureParameter io.trino.spi.type.TypeSignatureParameter used on opensource projects

Example 16 with TypeSignatureParameter

use of io.trino.spi.type.TypeSignatureParameter in project trino by trinodb.

the class RaptorStorageManager method getType.

private Type getType(ColumnMetadata<OrcType> types, OrcColumnId columnId) {
    OrcType type = types.get(columnId);
    switch(type.getOrcTypeKind()) {
        case BOOLEAN:
            return BOOLEAN;
        case LONG:
            return BIGINT;
        case DOUBLE:
            return DOUBLE;
        case STRING:
            return createUnboundedVarcharType();
        case VARCHAR:
            return createVarcharType(type.getLength().get());
        case CHAR:
            return createCharType(type.getLength().get());
        case BINARY:
            return VARBINARY;
        case DECIMAL:
            return DecimalType.createDecimalType(type.getPrecision().get(), type.getScale().get());
        case LIST:
            TypeSignature elementType = getType(types, type.getFieldTypeIndex(0)).getTypeSignature();
            return typeManager.getParameterizedType(StandardTypes.ARRAY, ImmutableList.of(TypeSignatureParameter.typeParameter(elementType)));
        case MAP:
            TypeSignature keyType = getType(types, type.getFieldTypeIndex(0)).getTypeSignature();
            TypeSignature valueType = getType(types, type.getFieldTypeIndex(1)).getTypeSignature();
            return typeManager.getParameterizedType(StandardTypes.MAP, ImmutableList.of(TypeSignatureParameter.typeParameter(keyType), TypeSignatureParameter.typeParameter(valueType)));
        case STRUCT:
            List<String> fieldNames = type.getFieldNames();
            ImmutableList.Builder<TypeSignatureParameter> fieldTypes = ImmutableList.builder();
            for (int i = 0; i < type.getFieldCount(); i++) {
                fieldTypes.add(TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(fieldNames.get(i))), getType(types, type.getFieldTypeIndex(i)).getTypeSignature())));
            }
            return typeManager.getParameterizedType(StandardTypes.ROW, fieldTypes.build());
        default:
            throw new TrinoException(RAPTOR_ERROR, "Unhandled ORC type: " + type);
    }
}

Example 17 with TypeSignatureParameter

use of io.trino.spi.type.TypeSignatureParameter in project trino by trinodb.

the class MongoSession method guessFieldType.

private Optional<TypeSignature> guessFieldType(Object value) {
    if (value == null) {
        return Optional.empty();
    }
    TypeSignature typeSignature = null;
    if (value instanceof String) {
        typeSignature = createUnboundedVarcharType().getTypeSignature();
    }
    if (value instanceof Binary) {
        typeSignature = VARBINARY.getTypeSignature();
    } else if (value instanceof Integer || value instanceof Long) {
        typeSignature = BIGINT.getTypeSignature();
    } else if (value instanceof Boolean) {
        typeSignature = BOOLEAN.getTypeSignature();
    } else if (value instanceof Float || value instanceof Double) {
        typeSignature = DOUBLE.getTypeSignature();
    } else if (value instanceof Date) {
        typeSignature = TIMESTAMP_MILLIS.getTypeSignature();
    } else if (value instanceof ObjectId) {
        typeSignature = OBJECT_ID.getTypeSignature();
    } else if (value instanceof List) {
        List<Optional<TypeSignature>> subTypes = ((List<?>) value).stream().map(this::guessFieldType).collect(toList());
        if (subTypes.isEmpty() || subTypes.stream().anyMatch(Optional::isEmpty)) {
            return Optional.empty();
        }
        Set<TypeSignature> signatures = subTypes.stream().map(Optional::get).collect(toSet());
        if (signatures.size() == 1) {
            typeSignature = new TypeSignature(StandardTypes.ARRAY, signatures.stream().map(TypeSignatureParameter::typeParameter).collect(Collectors.toList()));
        } else {
            // TODO: client doesn't handle empty field name row type yet
            typeSignature = new TypeSignature(StandardTypes.ROW, IntStream.range(0, subTypes.size()).mapToObj(idx -> TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(format("%s%d", implicitPrefix, idx + 1))), subTypes.get(idx).get()))).collect(toList()));
        }
    } else if (value instanceof Document) {
        List<TypeSignatureParameter> parameters = new ArrayList<>();
        for (String key : ((Document) value).keySet()) {
            Optional<TypeSignature> fieldType = guessFieldType(((Document) value).get(key));
            if (fieldType.isPresent()) {
                parameters.add(TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(key)), fieldType.get())));
            }
        }
        if (!parameters.isEmpty()) {
            typeSignature = new TypeSignature(StandardTypes.ROW, parameters);
        }
    } else if (value instanceof DBRef) {
        List<TypeSignatureParameter> parameters = new ArrayList<>();
        TypeSignature idFieldType = guessFieldType(((DBRef) value).getId()).orElseThrow(() -> new UnsupportedOperationException("Unable to guess $id field type of DBRef from: " + ((DBRef) value).getId()));
        parameters.add(TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(DATABASE_NAME)), VARCHAR.getTypeSignature())));
        parameters.add(TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(COLLECTION_NAME)), VARCHAR.getTypeSignature())));
        parameters.add(TypeSignatureParameter.namedTypeParameter(new NamedTypeSignature(Optional.of(new RowFieldName(ID)), idFieldType)));
        typeSignature = new TypeSignature(StandardTypes.ROW, parameters);
    }
    return Optional.ofNullable(typeSignature);
}