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types.cc
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2049 lines (1767 loc) · 68.5 KB
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include <array>
#include <cmath>
#include <cstdint>
#include <iomanip>
#include <memory>
#include <sstream>
#include <string>
#include "arrow/json/rapidjson_defs.h" // IWYU pragma: keep
#include "arrow/util/checked_cast.h"
#include "arrow/util/compression.h"
#include "arrow/util/decimal.h"
#include "arrow/util/float16.h"
#include "arrow/util/logging_internal.h"
#include <rapidjson/document.h>
#include <rapidjson/writer.h>
#include "parquet/exception.h"
#include "parquet/thrift_internal.h"
#include "parquet/types.h"
#include "generated/parquet_types.h"
#ifdef _MSC_VER
// disable warning about inheritance via dominance in the diamond pattern
# pragma warning(disable : 4250)
#endif
using arrow::internal::checked_cast;
using arrow::util::Codec;
namespace parquet {
bool IsCodecSupported(Compression::type codec) {
switch (codec) {
case Compression::UNCOMPRESSED:
case Compression::SNAPPY:
case Compression::GZIP:
case Compression::BROTLI:
case Compression::ZSTD:
case Compression::LZ4:
case Compression::LZ4_HADOOP:
return true;
default:
return false;
}
}
std::unique_ptr<Codec> GetCodec(Compression::type codec) {
return GetCodec(codec, CodecOptions());
}
std::unique_ptr<Codec> GetCodec(Compression::type codec,
const CodecOptions& codec_options) {
std::unique_ptr<Codec> result;
if (codec == Compression::LZO) {
throw ParquetException(
"While LZO compression is supported by the Parquet format in "
"general, it is currently not supported by the C++ implementation.");
}
if (!IsCodecSupported(codec)) {
std::stringstream ss;
ss << "Codec type " << Codec::GetCodecAsString(codec)
<< " not supported in Parquet format";
throw ParquetException(ss.str());
}
PARQUET_ASSIGN_OR_THROW(result, Codec::Create(codec, codec_options));
return result;
}
// use compression level to create Codec
std::unique_ptr<Codec> GetCodec(Compression::type codec, int compression_level) {
return GetCodec(codec, CodecOptions{compression_level});
}
bool PageCanUseChecksum(PageType::type pageType) {
switch (pageType) {
case PageType::type::DATA_PAGE:
case PageType::type::DATA_PAGE_V2:
case PageType::type::DICTIONARY_PAGE:
return true;
default:
return false;
}
}
namespace {
template <typename T>
std::enable_if_t<std::is_arithmetic_v<T>, std::string> FormatNumericValue(
::std::string_view val) {
std::stringstream result;
T value{};
std::memcpy(&value, val.data(), sizeof(T));
result << value;
return result.str();
}
std::string FormatDecimalValue(Type::type parquet_type, ::std::string_view val,
const std::shared_ptr<const LogicalType>& logical_type) {
ARROW_DCHECK(logical_type != nullptr && logical_type->is_decimal());
const auto& decimal_type =
::arrow::internal::checked_cast<const DecimalLogicalType&>(*logical_type);
const int32_t scale = decimal_type.scale();
std::stringstream result;
switch (parquet_type) {
case Type::INT32: {
int32_t int_value{};
std::memcpy(&int_value, val.data(), sizeof(int32_t));
::arrow::Decimal128 decimal_value(int_value);
result << decimal_value.ToString(scale);
break;
}
case Type::INT64: {
int64_t long_value{};
std::memcpy(&long_value, val.data(), sizeof(int64_t));
::arrow::Decimal128 decimal_value(long_value);
result << decimal_value.ToString(scale);
break;
}
case Type::FIXED_LEN_BYTE_ARRAY:
case Type::BYTE_ARRAY: {
auto decimal_result = ::arrow::Decimal256::FromBigEndian(
reinterpret_cast<const uint8_t*>(val.data()), static_cast<int32_t>(val.size()));
if (!decimal_result.ok()) {
throw ParquetException("Failed to parse decimal value: ",
decimal_result.status().message());
}
result << decimal_result.ValueUnsafe().ToString(scale);
break;
}
default:
throw ParquetException("Unsupported decimal type: ", TypeToString(parquet_type));
}
return result.str();
}
std::string FormatNonUTF8Value(::std::string_view val) {
if (val.empty()) {
return "";
}
std::stringstream result;
result << "0x" << std::hex;
for (const auto& c : val) {
result << std::setw(2) << std::setfill('0')
<< static_cast<int>(static_cast<unsigned char>(c));
}
return result.str();
}
std::string FormatFloat16Value(::std::string_view val) {
std::stringstream result;
auto float16 = ::arrow::util::Float16::FromLittleEndian(
reinterpret_cast<const uint8_t*>(val.data()));
result << float16.ToFloat();
return result.str();
}
} // namespace
std::string FormatStatValue(Type::type parquet_type, ::std::string_view val,
const std::shared_ptr<const LogicalType>& logical_type) {
std::stringstream result;
const char* bytes = val.data();
switch (parquet_type) {
case Type::BOOLEAN: {
bool value{};
std::memcpy(&value, bytes, sizeof(bool));
result << value;
break;
}
case Type::INT32: {
if (logical_type != nullptr && logical_type->is_decimal()) {
return FormatDecimalValue(parquet_type, val, logical_type);
}
return FormatNumericValue<int32_t>(val);
}
case Type::INT64: {
if (logical_type != nullptr && logical_type->is_decimal()) {
return FormatDecimalValue(parquet_type, val, logical_type);
}
return FormatNumericValue<int64_t>(val);
}
case Type::DOUBLE: {
return FormatNumericValue<double>(val);
}
case Type::FLOAT: {
return FormatNumericValue<float>(val);
}
case Type::INT96: {
std::array<int32_t, 3> values{};
std::memcpy(values.data(), bytes, 3 * sizeof(int32_t));
result << values[0] << " " << values[1] << " " << values[2];
break;
}
case Type::BYTE_ARRAY:
case Type::FIXED_LEN_BYTE_ARRAY: {
if (logical_type != nullptr) {
if (logical_type->is_decimal()) {
return FormatDecimalValue(parquet_type, val, logical_type);
}
if (logical_type->is_string()) {
return std::string(val);
}
if (logical_type->is_float16()) {
return FormatFloat16Value(val);
}
}
return FormatNonUTF8Value(val);
}
case Type::UNDEFINED:
default:
break;
}
return result.str();
}
std::string EncodingToString(Encoding::type t) {
switch (t) {
case Encoding::PLAIN:
return "PLAIN";
case Encoding::PLAIN_DICTIONARY:
return "PLAIN_DICTIONARY";
case Encoding::RLE:
return "RLE";
case Encoding::BIT_PACKED:
return "BIT_PACKED";
case Encoding::DELTA_BINARY_PACKED:
return "DELTA_BINARY_PACKED";
case Encoding::DELTA_LENGTH_BYTE_ARRAY:
return "DELTA_LENGTH_BYTE_ARRAY";
case Encoding::DELTA_BYTE_ARRAY:
return "DELTA_BYTE_ARRAY";
case Encoding::RLE_DICTIONARY:
return "RLE_DICTIONARY";
case Encoding::BYTE_STREAM_SPLIT:
return "BYTE_STREAM_SPLIT";
default:
return "UNKNOWN";
}
}
std::string TypeToString(Type::type t) {
switch (t) {
case Type::BOOLEAN:
return "BOOLEAN";
case Type::INT32:
return "INT32";
case Type::INT64:
return "INT64";
case Type::INT96:
return "INT96";
case Type::FLOAT:
return "FLOAT";
case Type::DOUBLE:
return "DOUBLE";
case Type::BYTE_ARRAY:
return "BYTE_ARRAY";
case Type::FIXED_LEN_BYTE_ARRAY:
return "FIXED_LEN_BYTE_ARRAY";
case Type::UNDEFINED:
default:
return "UNKNOWN";
}
}
std::string TypeToString(Type::type t, int type_length) {
auto s = TypeToString(t);
if (t == Type::FIXED_LEN_BYTE_ARRAY) {
s += '(';
s += std::to_string(type_length);
s += ')';
}
return s;
}
std::string ConvertedTypeToString(ConvertedType::type t) {
switch (t) {
case ConvertedType::NONE:
return "NONE";
case ConvertedType::UTF8:
return "UTF8";
case ConvertedType::MAP:
return "MAP";
case ConvertedType::MAP_KEY_VALUE:
return "MAP_KEY_VALUE";
case ConvertedType::LIST:
return "LIST";
case ConvertedType::ENUM:
return "ENUM";
case ConvertedType::DECIMAL:
return "DECIMAL";
case ConvertedType::DATE:
return "DATE";
case ConvertedType::TIME_MILLIS:
return "TIME_MILLIS";
case ConvertedType::TIME_MICROS:
return "TIME_MICROS";
case ConvertedType::TIMESTAMP_MILLIS:
return "TIMESTAMP_MILLIS";
case ConvertedType::TIMESTAMP_MICROS:
return "TIMESTAMP_MICROS";
case ConvertedType::UINT_8:
return "UINT_8";
case ConvertedType::UINT_16:
return "UINT_16";
case ConvertedType::UINT_32:
return "UINT_32";
case ConvertedType::UINT_64:
return "UINT_64";
case ConvertedType::INT_8:
return "INT_8";
case ConvertedType::INT_16:
return "INT_16";
case ConvertedType::INT_32:
return "INT_32";
case ConvertedType::INT_64:
return "INT_64";
case ConvertedType::JSON:
return "JSON";
case ConvertedType::BSON:
return "BSON";
case ConvertedType::INTERVAL:
return "INTERVAL";
case ConvertedType::UNDEFINED:
default:
return "UNKNOWN";
}
}
int GetTypeByteSize(Type::type parquet_type) {
switch (parquet_type) {
case Type::BOOLEAN:
return type_traits<BooleanType::type_num>::value_byte_size;
case Type::INT32:
return type_traits<Int32Type::type_num>::value_byte_size;
case Type::INT64:
return type_traits<Int64Type::type_num>::value_byte_size;
case Type::INT96:
return type_traits<Int96Type::type_num>::value_byte_size;
case Type::DOUBLE:
return type_traits<DoubleType::type_num>::value_byte_size;
case Type::FLOAT:
return type_traits<FloatType::type_num>::value_byte_size;
case Type::BYTE_ARRAY:
return type_traits<ByteArrayType::type_num>::value_byte_size;
case Type::FIXED_LEN_BYTE_ARRAY:
return type_traits<FLBAType::type_num>::value_byte_size;
case Type::UNDEFINED:
default:
return 0;
}
return 0;
}
// Return the Sort Order of the Parquet Physical Types
SortOrder::type DefaultSortOrder(Type::type primitive) {
switch (primitive) {
case Type::BOOLEAN:
case Type::INT32:
case Type::INT64:
case Type::FLOAT:
case Type::DOUBLE:
return SortOrder::SIGNED;
case Type::BYTE_ARRAY:
case Type::FIXED_LEN_BYTE_ARRAY:
return SortOrder::UNSIGNED;
case Type::INT96:
case Type::UNDEFINED:
return SortOrder::UNKNOWN;
}
return SortOrder::UNKNOWN;
}
// Return the SortOrder of the Parquet Types using Logical or Physical Types
SortOrder::type GetSortOrder(ConvertedType::type converted, Type::type primitive) {
if (converted == ConvertedType::NONE) return DefaultSortOrder(primitive);
switch (converted) {
case ConvertedType::INT_8:
case ConvertedType::INT_16:
case ConvertedType::INT_32:
case ConvertedType::INT_64:
case ConvertedType::DATE:
case ConvertedType::TIME_MICROS:
case ConvertedType::TIME_MILLIS:
case ConvertedType::TIMESTAMP_MICROS:
case ConvertedType::TIMESTAMP_MILLIS:
return SortOrder::SIGNED;
case ConvertedType::UINT_8:
case ConvertedType::UINT_16:
case ConvertedType::UINT_32:
case ConvertedType::UINT_64:
case ConvertedType::ENUM:
case ConvertedType::UTF8:
case ConvertedType::BSON:
case ConvertedType::JSON:
return SortOrder::UNSIGNED;
case ConvertedType::DECIMAL:
case ConvertedType::LIST:
case ConvertedType::MAP:
case ConvertedType::MAP_KEY_VALUE:
case ConvertedType::INTERVAL:
case ConvertedType::NONE: // required instead of default
case ConvertedType::NA: // required instead of default
case ConvertedType::UNDEFINED:
return SortOrder::UNKNOWN;
}
return SortOrder::UNKNOWN;
}
SortOrder::type GetSortOrder(const std::shared_ptr<const LogicalType>& logical_type,
Type::type primitive) {
SortOrder::type o = SortOrder::UNKNOWN;
if (logical_type && logical_type->is_valid()) {
o = (logical_type->is_none() ? DefaultSortOrder(primitive)
: logical_type->sort_order());
}
return o;
}
ColumnOrder ColumnOrder::undefined_ = ColumnOrder(ColumnOrder::UNDEFINED);
ColumnOrder ColumnOrder::type_defined_ = ColumnOrder(ColumnOrder::TYPE_DEFINED_ORDER);
// Static methods for LogicalType class
std::shared_ptr<const LogicalType> LogicalType::FromConvertedType(
const ConvertedType::type converted_type,
const schema::DecimalMetadata converted_decimal_metadata) {
switch (converted_type) {
case ConvertedType::UTF8:
return StringLogicalType::Make();
case ConvertedType::MAP_KEY_VALUE:
case ConvertedType::MAP:
return MapLogicalType::Make();
case ConvertedType::LIST:
return ListLogicalType::Make();
case ConvertedType::ENUM:
return EnumLogicalType::Make();
case ConvertedType::DECIMAL:
return DecimalLogicalType::Make(converted_decimal_metadata.precision,
converted_decimal_metadata.scale);
case ConvertedType::DATE:
return DateLogicalType::Make();
case ConvertedType::TIME_MILLIS:
// ConvertedType::TIME_{*} are deprecated in favor of LogicalType::Time, the
// compatibility for ConvertedType::TIME_{*} are listed in
// https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#deprecated-time-convertedtype
return TimeLogicalType::Make(/*is_adjusted_to_utc=*/true,
LogicalType::TimeUnit::MILLIS);
case ConvertedType::TIME_MICROS:
return TimeLogicalType::Make(/*is_adjusted_to_utc=*/true,
LogicalType::TimeUnit::MICROS);
case ConvertedType::TIMESTAMP_MILLIS:
// ConvertedType::TIMESTAMP_{*} are deprecated in favor of LogicalType::Timestamp,
// the compatibility for ConvertedType::TIMESTAMP_{*} are listed in
// https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#deprecated-timestamp-convertedtype
return TimestampLogicalType::Make(/*is_adjusted_to_utc=*/true,
LogicalType::TimeUnit::MILLIS,
/*is_from_converted_type=*/true,
/*force_set_converted_type=*/false);
case ConvertedType::TIMESTAMP_MICROS:
return TimestampLogicalType::Make(/*is_adjusted_to_utc=*/true,
LogicalType::TimeUnit::MICROS,
/*is_from_converted_type=*/true,
/*force_set_converted_type=*/false);
case ConvertedType::INTERVAL:
return IntervalLogicalType::Make();
case ConvertedType::INT_8:
return IntLogicalType::Make(8, true);
case ConvertedType::INT_16:
return IntLogicalType::Make(16, true);
case ConvertedType::INT_32:
return IntLogicalType::Make(32, true);
case ConvertedType::INT_64:
return IntLogicalType::Make(64, true);
case ConvertedType::UINT_8:
return IntLogicalType::Make(8, false);
case ConvertedType::UINT_16:
return IntLogicalType::Make(16, false);
case ConvertedType::UINT_32:
return IntLogicalType::Make(32, false);
case ConvertedType::UINT_64:
return IntLogicalType::Make(64, false);
case ConvertedType::JSON:
return JSONLogicalType::Make();
case ConvertedType::BSON:
return BSONLogicalType::Make();
case ConvertedType::NA:
return NullLogicalType::Make();
case ConvertedType::NONE:
return NoLogicalType::Make();
case ConvertedType::UNDEFINED:
return UndefinedLogicalType::Make();
}
return UndefinedLogicalType::Make();
}
std::shared_ptr<const LogicalType> LogicalType::FromThrift(
const format::LogicalType& type) {
if (type.__isset.STRING) {
return StringLogicalType::Make();
} else if (type.__isset.MAP) {
return MapLogicalType::Make();
} else if (type.__isset.LIST) {
return ListLogicalType::Make();
} else if (type.__isset.ENUM) {
return EnumLogicalType::Make();
} else if (type.__isset.DECIMAL) {
return DecimalLogicalType::Make(type.DECIMAL.precision, type.DECIMAL.scale);
} else if (type.__isset.DATE) {
return DateLogicalType::Make();
} else if (type.__isset.TIME) {
LogicalType::TimeUnit::unit unit;
if (type.TIME.unit.__isset.MILLIS) {
unit = LogicalType::TimeUnit::MILLIS;
} else if (type.TIME.unit.__isset.MICROS) {
unit = LogicalType::TimeUnit::MICROS;
} else if (type.TIME.unit.__isset.NANOS) {
unit = LogicalType::TimeUnit::NANOS;
} else {
unit = LogicalType::TimeUnit::UNKNOWN;
}
return TimeLogicalType::Make(type.TIME.isAdjustedToUTC, unit);
} else if (type.__isset.TIMESTAMP) {
LogicalType::TimeUnit::unit unit;
if (type.TIMESTAMP.unit.__isset.MILLIS) {
unit = LogicalType::TimeUnit::MILLIS;
} else if (type.TIMESTAMP.unit.__isset.MICROS) {
unit = LogicalType::TimeUnit::MICROS;
} else if (type.TIMESTAMP.unit.__isset.NANOS) {
unit = LogicalType::TimeUnit::NANOS;
} else {
unit = LogicalType::TimeUnit::UNKNOWN;
}
return TimestampLogicalType::Make(type.TIMESTAMP.isAdjustedToUTC, unit);
// TODO(tpboudreau): activate the commented code after parquet.thrift
// recognizes IntervalType as a LogicalType
//} else if (type.__isset.INTERVAL) {
// return IntervalLogicalType::Make();
} else if (type.__isset.INTEGER) {
return IntLogicalType::Make(static_cast<int>(type.INTEGER.bitWidth),
type.INTEGER.isSigned);
} else if (type.__isset.UNKNOWN) {
return NullLogicalType::Make();
} else if (type.__isset.JSON) {
return JSONLogicalType::Make();
} else if (type.__isset.BSON) {
return BSONLogicalType::Make();
} else if (type.__isset.UUID) {
return UUIDLogicalType::Make();
} else if (type.__isset.FLOAT16) {
return Float16LogicalType::Make();
} else if (type.__isset.GEOMETRY) {
std::string crs;
if (type.GEOMETRY.__isset.crs) {
crs = type.GEOMETRY.crs;
}
return GeometryLogicalType::Make(std::move(crs));
} else if (type.__isset.GEOGRAPHY) {
std::string crs;
if (type.GEOGRAPHY.__isset.crs) {
crs = type.GEOGRAPHY.crs;
}
LogicalType::EdgeInterpolationAlgorithm algorithm;
if (!type.GEOGRAPHY.__isset.algorithm) {
algorithm = LogicalType::EdgeInterpolationAlgorithm::SPHERICAL;
} else {
algorithm = LoadEnumSafe(&type.GEOGRAPHY.algorithm);
}
return GeographyLogicalType::Make(std::move(crs), algorithm);
} else if (type.__isset.VARIANT) {
int8_t spec_version = kVariantSpecVersion;
if (type.VARIANT.__isset.specification_version) {
spec_version = type.VARIANT.specification_version;
}
return VariantLogicalType::Make(spec_version);
} else {
// Sentinel type for one we do not recognize
return UndefinedLogicalType::Make();
}
}
std::shared_ptr<const LogicalType> LogicalType::String() {
return StringLogicalType::Make();
}
std::shared_ptr<const LogicalType> LogicalType::Map() { return MapLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::List() { return ListLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::Enum() { return EnumLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::Decimal(int32_t precision,
int32_t scale) {
return DecimalLogicalType::Make(precision, scale);
}
std::shared_ptr<const LogicalType> LogicalType::Date() { return DateLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::Time(
bool is_adjusted_to_utc, LogicalType::TimeUnit::unit time_unit) {
DCHECK(time_unit != LogicalType::TimeUnit::UNKNOWN);
return TimeLogicalType::Make(is_adjusted_to_utc, time_unit);
}
std::shared_ptr<const LogicalType> LogicalType::Timestamp(
bool is_adjusted_to_utc, LogicalType::TimeUnit::unit time_unit,
bool is_from_converted_type, bool force_set_converted_type) {
DCHECK(time_unit != LogicalType::TimeUnit::UNKNOWN);
return TimestampLogicalType::Make(is_adjusted_to_utc, time_unit, is_from_converted_type,
force_set_converted_type);
}
std::shared_ptr<const LogicalType> LogicalType::Interval() {
return IntervalLogicalType::Make();
}
std::shared_ptr<const LogicalType> LogicalType::Int(int bit_width, bool is_signed) {
DCHECK(bit_width == 64 || bit_width == 32 || bit_width == 16 || bit_width == 8);
return IntLogicalType::Make(bit_width, is_signed);
}
std::shared_ptr<const LogicalType> LogicalType::Null() { return NullLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::JSON() { return JSONLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::BSON() { return BSONLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::UUID() { return UUIDLogicalType::Make(); }
std::shared_ptr<const LogicalType> LogicalType::Float16() {
return Float16LogicalType::Make();
}
std::shared_ptr<const LogicalType> LogicalType::Geometry(std::string crs) {
return GeometryLogicalType::Make(std::move(crs));
}
std::shared_ptr<const LogicalType> LogicalType::Geography(
std::string crs, LogicalType::EdgeInterpolationAlgorithm algorithm) {
return GeographyLogicalType::Make(std::move(crs), algorithm);
}
std::shared_ptr<const LogicalType> LogicalType::Variant(int8_t spec_version) {
return VariantLogicalType::Make(spec_version);
}
std::shared_ptr<const LogicalType> LogicalType::None() { return NoLogicalType::Make(); }
/*
* The logical type implementation classes are built in four layers: (1) the base
* layer, which establishes the interface and provides generally reusable implementations
* for the ToJSON() and Equals() methods; (2) an intermediate derived layer for the
* "compatibility" methods, which provides implementations for is_compatible() and
* ToConvertedType(); (3) another intermediate layer for the "applicability" methods
* that provides several implementations for the is_applicable() method; and (4) the
* final derived classes, one for each logical type, which supply implementations
* for those methods that remain virtual (usually just ToString() and ToThrift()) or
* otherwise need to be overridden.
*/
// LogicalTypeImpl base class
class LogicalType::Impl {
public:
virtual bool is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length = -1) const = 0;
virtual bool is_compatible(ConvertedType::type converted_type,
schema::DecimalMetadata converted_decimal_metadata = {
false, -1, -1}) const = 0;
virtual ConvertedType::type ToConvertedType(
schema::DecimalMetadata* out_decimal_metadata) const = 0;
virtual std::string ToString() const = 0;
virtual bool is_serialized() const {
return !(type_ == LogicalType::Type::NONE || type_ == LogicalType::Type::UNDEFINED);
}
virtual std::string ToJSON() const {
std::stringstream json;
json << R"({"Type": ")" << ToString() << R"("})";
return json.str();
}
virtual format::LogicalType ToThrift() const {
// logical types inheriting this method should never be serialized
std::stringstream ss;
ss << "Logical type " << ToString() << " should not be serialized";
throw ParquetException(ss.str());
}
virtual bool Equals(const LogicalType& other) const { return other.type() == type_; }
LogicalType::Type::type type() const { return type_; }
SortOrder::type sort_order() const { return order_; }
Impl(const Impl&) = delete;
Impl& operator=(const Impl&) = delete;
virtual ~Impl() noexcept {}
class Compatible;
class SimpleCompatible;
class Incompatible;
class Applicable;
class SimpleApplicable;
class TypeLengthApplicable;
class UniversalApplicable;
class Inapplicable;
class String;
class Map;
class List;
class Enum;
class Decimal;
class Date;
class Time;
class Timestamp;
class Interval;
class Int;
class Null;
class JSON;
class BSON;
class UUID;
class Float16;
class Geometry;
class Geography;
class Variant;
class No;
class Undefined;
protected:
Impl(LogicalType::Type::type t, SortOrder::type o) : type_(t), order_(o) {}
Impl() = default;
private:
LogicalType::Type::type type_ = LogicalType::Type::UNDEFINED;
SortOrder::type order_ = SortOrder::UNKNOWN;
};
// Special methods for public LogicalType class
LogicalType::LogicalType() = default;
LogicalType::~LogicalType() noexcept = default;
// Delegating methods for public LogicalType class
bool LogicalType::is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length) const {
return impl_->is_applicable(primitive_type, primitive_length);
}
bool LogicalType::is_compatible(
ConvertedType::type converted_type,
schema::DecimalMetadata converted_decimal_metadata) const {
return impl_->is_compatible(converted_type, converted_decimal_metadata);
}
ConvertedType::type LogicalType::ToConvertedType(
schema::DecimalMetadata* out_decimal_metadata) const {
return impl_->ToConvertedType(out_decimal_metadata);
}
std::string LogicalType::ToString() const { return impl_->ToString(); }
std::string LogicalType::ToJSON() const { return impl_->ToJSON(); }
format::LogicalType LogicalType::ToThrift() const { return impl_->ToThrift(); }
bool LogicalType::Equals(const LogicalType& other) const { return impl_->Equals(other); }
LogicalType::Type::type LogicalType::type() const { return impl_->type(); }
SortOrder::type LogicalType::sort_order() const { return impl_->sort_order(); }
// Type checks for public LogicalType class
bool LogicalType::is_string() const { return impl_->type() == LogicalType::Type::STRING; }
bool LogicalType::is_map() const { return impl_->type() == LogicalType::Type::MAP; }
bool LogicalType::is_list() const { return impl_->type() == LogicalType::Type::LIST; }
bool LogicalType::is_enum() const { return impl_->type() == LogicalType::Type::ENUM; }
bool LogicalType::is_decimal() const {
return impl_->type() == LogicalType::Type::DECIMAL;
}
bool LogicalType::is_date() const { return impl_->type() == LogicalType::Type::DATE; }
bool LogicalType::is_time() const { return impl_->type() == LogicalType::Type::TIME; }
bool LogicalType::is_timestamp() const {
return impl_->type() == LogicalType::Type::TIMESTAMP;
}
bool LogicalType::is_interval() const {
return impl_->type() == LogicalType::Type::INTERVAL;
}
bool LogicalType::is_int() const { return impl_->type() == LogicalType::Type::INT; }
bool LogicalType::is_null() const { return impl_->type() == LogicalType::Type::NIL; }
bool LogicalType::is_JSON() const { return impl_->type() == LogicalType::Type::JSON; }
bool LogicalType::is_BSON() const { return impl_->type() == LogicalType::Type::BSON; }
bool LogicalType::is_UUID() const { return impl_->type() == LogicalType::Type::UUID; }
bool LogicalType::is_float16() const {
return impl_->type() == LogicalType::Type::FLOAT16;
}
bool LogicalType::is_geometry() const {
return impl_->type() == LogicalType::Type::GEOMETRY;
}
bool LogicalType::is_geography() const {
return impl_->type() == LogicalType::Type::GEOGRAPHY;
}
bool LogicalType::is_variant() const {
return impl_->type() == LogicalType::Type::VARIANT;
}
bool LogicalType::is_none() const { return impl_->type() == LogicalType::Type::NONE; }
bool LogicalType::is_valid() const {
return impl_->type() != LogicalType::Type::UNDEFINED;
}
bool LogicalType::is_invalid() const { return !is_valid(); }
bool LogicalType::is_nested() const {
return impl_->type() == LogicalType::Type::LIST ||
impl_->type() == LogicalType::Type::MAP ||
impl_->type() == LogicalType::Type::VARIANT;
}
bool LogicalType::is_nonnested() const { return !is_nested(); }
bool LogicalType::is_serialized() const { return impl_->is_serialized(); }
// LogicalTypeImpl intermediate "compatibility" classes
class LogicalType::Impl::Compatible : public virtual LogicalType::Impl {
protected:
Compatible() = default;
};
#define set_decimal_metadata(m___, i___, p___, s___) \
{ \
if (m___) { \
(m___)->isset = (i___); \
(m___)->scale = (s___); \
(m___)->precision = (p___); \
} \
}
#define reset_decimal_metadata(m___) \
{ set_decimal_metadata(m___, false, -1, -1); }
// For logical types that always translate to the same converted type
class LogicalType::Impl::SimpleCompatible : public virtual LogicalType::Impl::Compatible {
public:
bool is_compatible(ConvertedType::type converted_type,
schema::DecimalMetadata converted_decimal_metadata) const override {
return (converted_type == converted_type_) && !converted_decimal_metadata.isset;
}
ConvertedType::type ToConvertedType(
schema::DecimalMetadata* out_decimal_metadata) const override {
reset_decimal_metadata(out_decimal_metadata);
return converted_type_;
}
protected:
explicit SimpleCompatible(ConvertedType::type c) : converted_type_(c) {}
private:
ConvertedType::type converted_type_ = ConvertedType::NA;
};
// For logical types that have no corresponding converted type
class LogicalType::Impl::Incompatible : public virtual LogicalType::Impl {
public:
bool is_compatible(ConvertedType::type converted_type,
schema::DecimalMetadata converted_decimal_metadata) const override {
return (converted_type == ConvertedType::NONE ||
converted_type == ConvertedType::NA) &&
!converted_decimal_metadata.isset;
}
ConvertedType::type ToConvertedType(
schema::DecimalMetadata* out_decimal_metadata) const override {
reset_decimal_metadata(out_decimal_metadata);
return ConvertedType::NONE;
}
protected:
Incompatible() = default;
};
// LogicalTypeImpl intermediate "applicability" classes
class LogicalType::Impl::Applicable : public virtual LogicalType::Impl {
protected:
Applicable() = default;
};
// For logical types that can apply only to a single
// physical type
class LogicalType::Impl::SimpleApplicable : public virtual LogicalType::Impl::Applicable {
public:
bool is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length = -1) const override {
return primitive_type == type_;
}
protected:
explicit SimpleApplicable(parquet::Type::type t) : type_(t) {}
private:
parquet::Type::type type_;
};
// For logical types that can apply only to a particular
// physical type and physical length combination
class LogicalType::Impl::TypeLengthApplicable
: public virtual LogicalType::Impl::Applicable {
public:
bool is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length = -1) const override {
return primitive_type == type_ && primitive_length == length_;
}
protected:
TypeLengthApplicable(parquet::Type::type t, int32_t l) : type_(t), length_(l) {}
private:
parquet::Type::type type_;
int32_t length_;
};
// For logical types that can apply to any physical type
class LogicalType::Impl::UniversalApplicable
: public virtual LogicalType::Impl::Applicable {
public:
bool is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length = -1) const override {
return true;
}
protected:
UniversalApplicable() = default;
};
// For logical types that can never apply to any primitive
// physical type
class LogicalType::Impl::Inapplicable : public virtual LogicalType::Impl {
public:
bool is_applicable(parquet::Type::type primitive_type,
int32_t primitive_length = -1) const override {
return false;
}
protected:
Inapplicable() = default;
};
// LogicalType implementation final classes
#define OVERRIDE_TOSTRING(n___) \
std::string ToString() const override { return #n___; }
#define OVERRIDE_TOTHRIFT(t___, s___) \
format::LogicalType ToThrift() const override { \
format::LogicalType type; \
format::t___ subtype; \
type.__set_##s___(subtype); \
return type; \
}
class LogicalType::Impl::String final : public LogicalType::Impl::SimpleCompatible,
public LogicalType::Impl::SimpleApplicable {
public:
friend class StringLogicalType;
OVERRIDE_TOSTRING(String)