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#include "mkql_frombytes.h"
#include <yql/essentials/minikql/computation/mkql_computation_node_holders.h>
#include <yql/essentials/minikql/mkql_node_builder.h>
#include <yql/essentials/minikql/mkql_node_cast.h>
#include <yql/essentials/public/udf/tz/udf_tz.h>
#include <yql/essentials/utils/swap_bytes.h>
#include <yql/essentials/types/binary_json/read.h>
#include <util/system/unaligned_mem.h>
namespace NKikimr {
namespace NMiniKQL {
namespace {
using NYql::SwapBytes;
template <bool IsOptional>
class TFromBytesWrapper : public TMutableComputationNode<TFromBytesWrapper<IsOptional>> {
typedef TMutableComputationNode<TFromBytesWrapper<IsOptional>> TBaseComputation;
public:
TFromBytesWrapper(TComputationMutables& mutables, IComputationNode* data, NUdf::TDataTypeId schemeType, ui32 param1, ui32 param2)
: TBaseComputation(mutables)
, Data(data)
, SchemeType(NUdf::GetDataSlot(schemeType))
, Param1(param1)
, Param2(param2)
{
if (SchemeType == NUdf::EDataSlot::Decimal) {
DecimalBound = NYql::NDecimal::TInt128(1);
NYql::NDecimal::TInt128 ten(10U);
for (ui32 i = 0; i < Param1; ++i) {
DecimalBound *= ten;
}
NegDecimalBound = -DecimalBound;
}
}
NUdf::TUnboxedValuePod DoCalculate(TComputationContext& ctx) const {
auto data = Data->GetValue(ctx);
if (IsOptional && !data) {
return NUdf::TUnboxedValuePod();
}
switch (SchemeType) {
case NUdf::EDataSlot::TzDate: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 4) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<ui16>());
if (value < NUdf::MAX_DATE && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::TzDatetime: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 6) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<ui32>());
if (value < NUdf::MAX_DATETIME && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::TzTimestamp: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 10) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<ui64>());
if (value < NUdf::MAX_TIMESTAMP && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::TzDate32: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 6) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<i32>());
if (value >= NUdf::MIN_DATE32 && value <= NUdf::MAX_DATE32 && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::TzDatetime64: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 10) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<i64>());
if (value >= NUdf::MIN_DATETIME64 && value <= NUdf::MAX_DATETIME64 && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::TzTimestamp64: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 10) {
return NUdf::TUnboxedValuePod();
}
auto tzId = SwapBytes(ReadUnaligned<ui16>(ref.Data() + ref.Size() - sizeof(ui16)));
auto value = SwapBytes(data.Get<i64>());
if (value >= NUdf::MIN_TIMESTAMP64 && value <= NUdf::MAX_TIMESTAMP64 && tzId < NUdf::GetTimezones().size()) {
auto ret = NUdf::TUnboxedValuePod(value);
ret.SetTimezoneId(tzId);
return ret;
}
return NUdf::TUnboxedValuePod();
}
case NUdf::EDataSlot::JsonDocument: {
if (!NBinaryJson::IsValidBinaryJson(TStringBuf(data.AsStringRef()))) {
return NUdf::TUnboxedValuePod();
}
return data.Release();
}
case NUdf::EDataSlot::Decimal: {
const auto& ref = data.AsStringRef();
if (ref.Size() != 15) {
return NUdf::TUnboxedValuePod();
}
NYql::NDecimal::TInt128 v = 0;
ui8* p = (ui8*)&v;
memcpy(p, ref.Data(), 15);
p[0xF] = (p[0xE] & 0x80) ? 0xFF : 0x00;
if (NYql::NDecimal::IsError(v)) {
return NUdf::TUnboxedValuePod();
}
if (!NYql::NDecimal::IsNormal(v)) {
return NUdf::TUnboxedValuePod(v);
}
if (v >= DecimalBound) {
return NUdf::TUnboxedValuePod(NYql::NDecimal::Inf());
}
if (v <= NegDecimalBound) {
return NUdf::TUnboxedValuePod(-NYql::NDecimal::Inf());
}
return NUdf::TUnboxedValuePod(v);
}
default:
if (IsValidValue(SchemeType, data)) {
return data.Release();
} else {
return NUdf::TUnboxedValuePod();
}
}
}
private:
void RegisterDependencies() const final {
this->DependsOn(Data);
}
IComputationNode* const Data;
const NUdf::EDataSlot SchemeType;
const ui32 Param1;
const ui32 Param2;
NYql::NDecimal::TInt128 DecimalBound, NegDecimalBound;
};
}
IComputationNode* WrapFromBytes(TCallable& callable, const TComputationNodeFactoryContext& ctx) {
MKQL_ENSURE(callable.GetInputsCount() == 2 || callable.GetInputsCount() == 4, "Expected 2 or 4 args");
bool isOptional;
const auto dataType = UnpackOptionalData(callable.GetInput(0), isOptional);
MKQL_ENSURE(dataType->GetSchemeType() == NUdf::TDataType<char*>::Id, "Expected String");
const auto schemeTypeData = AS_VALUE(TDataLiteral, callable.GetInput(1));
const auto schemeType = schemeTypeData->AsValue().Get<ui32>();
ui32 param1 = 0;
ui32 param2 = 0;
if (schemeType == NUdf::TDataType<NUdf::TDecimal>::Id) {
MKQL_ENSURE(callable.GetInputsCount() == 4, "Expected 4 args");
const auto param1Data = AS_VALUE(TDataLiteral, callable.GetInput(2));
param1 = param1Data->AsValue().Get<ui32>();
const auto param2Data = AS_VALUE(TDataLiteral, callable.GetInput(3));
param2 = param2Data->AsValue().Get<ui32>();
} else {
MKQL_ENSURE(callable.GetInputsCount() == 2, "Expected 2 args");
}
const auto data = LocateNode(ctx.NodeLocator, callable, 0);
if (isOptional) {
return new TFromBytesWrapper<true>(ctx.Mutables, data, static_cast<NUdf::TDataTypeId>(schemeType), param1, param2);
} else {
return new TFromBytesWrapper<false>(ctx.Mutables, data, static_cast<NUdf::TDataTypeId>(schemeType), param1, param2);
}
}
}
}
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