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#pragma once
#include "resource.h"
#include <yql/essentials/public/udf/udf_value.h>
#include <yql/essentials/public/udf/udf_helpers.h>
#include <yql/essentials/minikql/dom/json.h>
#include <yql/essentials/types/binary_json/write.h>
namespace NJson2Udf {
using namespace NKikimr;
using namespace NUdf;
using namespace NYql;
using namespace NDom;
using namespace NBinaryJson;
template <EDataSlot ResultType>
class TSerialize : public TBoxedValue {
public:
TSerialize(TSourcePosition pos)
: Pos_(pos)
{
}
static const TStringRef& Name();
static bool DeclareSignature(
const TStringRef& name,
TType* userType,
IFunctionTypeInfoBuilder& builder,
bool typesOnly) {
Y_UNUSED(userType);
if (name != Name()) {
return false;
}
TType* resultType = nullptr;
if constexpr (ResultType == EDataSlot::Json) {
resultType = builder.SimpleType<TJson>();
} else {
resultType = builder.SimpleType<TJsonDocument>();
}
builder.Args()
->Add<TAutoMap<TJsonNodeResource>>()
.Done()
.Returns(resultType);
if (!typesOnly) {
builder.Implementation(new TSerialize(builder.GetSourcePosition()));
}
return true;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const final {
try {
const TUnboxedValue& jsonDom = args[0];
if constexpr (ResultType == EDataSlot::Json) {
return valueBuilder->NewString(SerializeJsonDom(jsonDom));
} else {
const auto binaryJson = SerializeToBinaryJson(jsonDom);
return valueBuilder->NewString(TStringBuf(binaryJson.Data(), binaryJson.Size()));
}
} catch (const std::exception& e) {
UdfTerminate((TStringBuilder() << Pos_ << " " << e.what()).data());
}
}
TSourcePosition Pos_;
};
template <>
const TStringRef& TSerialize<EDataSlot::Json>::Name() {
static auto name = TStringRef::Of("Serialize");
return name;
}
template <>
const TStringRef& TSerialize<EDataSlot::JsonDocument>::Name() {
static auto name = TStringRef::Of("SerializeToJsonDocument");
return name;
}
}
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