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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 <library/cpp/json/json_reader.h>
namespace NJson2Udf {
using namespace NKikimr;
using namespace NUdf;
using namespace NYql;
using namespace NDom;
class TParse: public TBoxedValue {
public:
TParse(TSourcePosition pos)
: Pos_(pos)
{
}
static const TStringRef& Name() {
static auto name = TStringRef::Of("Parse");
return name;
}
static bool DeclareSignature(
const TStringRef& name,
TType* userType,
IFunctionTypeInfoBuilder& builder,
bool typesOnly) {
Y_UNUSED(userType);
if (name != Name()) {
return false;
}
builder.Args()
->Add<TAutoMap<TJson>>()
.Done()
.Returns<TJsonNodeResource>();
if (!typesOnly) {
builder.Implementation(new TParse(builder.GetSourcePosition()));
}
return true;
}
private:
TUnboxedValue Run(
const IValueBuilder* valueBuilder,
const TUnboxedValuePod* args) const final {
Y_UNUSED(valueBuilder);
try {
const auto json = args[0].AsStringRef();
return TryParseJsonDom(json, valueBuilder);
} catch (const std::exception& e) {
UdfTerminate((TStringBuilder() << Pos_ << " " << e.what()).c_str());
}
}
TSourcePosition Pos_;
};
} // namespace NJson2Udf
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