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#include "proto_builder.h"
#include <ydb/library/yql/providers/common/codec/yql_codec.h>
#include <ydb/library/yql/dq/proto/dq_transport.pb.h>
#include <ydb/library/yql/dq/runtime/dq_transport.h>
#include <ydb/library/yql/minikql/mkql_node_cast.h>
#include <ydb/library/yql/minikql/mkql_node_serialization.h>
#include <ydb/library/yql/utils/log/log.h>
#include <ydb/library/mkql_proto/mkql_proto.h>
#include <library/cpp/yson/node/node_io.h>
#include <library/cpp/yson/writer.h>
namespace NYql::NDqs {
using namespace NKikimr::NMiniKQL;
namespace {
TVector<ui32> BuildColumnOrder(const TVector<TString>& columns, NKikimr::NMiniKQL::TType* resultType) {
MKQL_ENSURE(resultType, "Incorrect result type");
if (resultType->GetKind() != TType::EKind::Struct || columns.empty()) {
return {};
}
TVector<ui32> columnOrder;
THashMap<TString, ui32> column2id;
auto structType = AS_TYPE(TStructType, resultType);
for (ui32 i = 0; i < structType->GetMembersCount(); ++i) {
const auto columnName = TString(structType->GetMemberName(i));
column2id[columnName] = i;
}
columnOrder.resize(columns.size());
int id = 0;
for (const auto& columnName : columns) {
columnOrder[id++] = column2id[columnName];
}
return columnOrder;
}
} // unnamed
TProtoBuilder::TProtoBuilder(const TString& type, const TVector<TString>& columns)
: Alloc(__LOCATION__)
, TypeEnv(Alloc)
, ResultType(static_cast<TType*>(DeserializeNode(type, TypeEnv)))
, ColumnOrder(BuildColumnOrder(columns, ResultType))
{
Alloc.Release();
}
TProtoBuilder::~TProtoBuilder() {
Alloc.Acquire();
}
bool TProtoBuilder::CanBuildResultSet() const {
return ResultType->GetKind() == TType::EKind::Struct;
}
TString TProtoBuilder::BuildYson(TVector<NYql::NDq::TDqSerializedBatch>&& rows, ui64 maxBytesLimit) {
ui64 size = 0;
TStringStream out;
NYson::TYsonWriter writer((IOutputStream*)&out);
writer.OnBeginList();
auto full = WriteData(std::move(rows), [&](const NYql::NUdf::TUnboxedValuePod& value) {
auto rowYson = NCommon::WriteYsonValue(value, ResultType, ColumnOrder.empty() ? nullptr : &ColumnOrder);
writer.OnListItem();
writer.OnRaw(rowYson);
size += rowYson.size();
return size <= maxBytesLimit;
});
if (!full) {
ythrow yexception() << "Too big yson result size: " << size << " > " << maxBytesLimit;
}
writer.OnEndList();
return out.Str();
}
bool TProtoBuilder::WriteYsonData(NYql::NDq::TDqSerializedBatch&& data, const std::function<bool(const TString& rawYson)>& func) {
return WriteData(std::move(data), [&](const NYql::NUdf::TUnboxedValuePod& value) {
auto rowYson = NCommon::WriteYsonValue(value, ResultType, ColumnOrder.empty() ? nullptr : &ColumnOrder);
return func(rowYson);
});
}
bool TProtoBuilder::WriteData(NYql::NDq::TDqSerializedBatch&& data, const std::function<bool(const NYql::NUdf::TUnboxedValuePod& value)>& func) {
TGuard<TScopedAlloc> allocGuard(Alloc);
TMemoryUsageInfo memInfo("ProtoBuilder");
THolderFactory holderFactory(Alloc.Ref(), memInfo);
const auto transportVersion = NDqProto::EDataTransportVersion::DATA_TRANSPORT_VERSION_UNSPECIFIED;
NDq::TDqDataSerializer dataSerializer(TypeEnv, holderFactory, transportVersion);
YQL_ENSURE(!ResultType->IsMulti());
TUnboxedValueBatch buffer(ResultType);
dataSerializer.Deserialize(std::move(data), ResultType, buffer);
return buffer.ForEachRow([&func](const auto& value) {
return func(value);
});
}
bool TProtoBuilder::WriteData(TVector<NYql::NDq::TDqSerializedBatch>&& rows, const std::function<bool(const NYql::NUdf::TUnboxedValuePod& value)>& func) {
TGuard<TScopedAlloc> allocGuard(Alloc);
TMemoryUsageInfo memInfo("ProtoBuilder");
THolderFactory holderFactory(Alloc.Ref(), memInfo);
const auto transportVersion = NDqProto::EDataTransportVersion::DATA_TRANSPORT_VERSION_UNSPECIFIED;
NDq::TDqDataSerializer dataSerializer(TypeEnv, holderFactory, transportVersion);
YQL_ENSURE(!ResultType->IsMulti());
for (auto& part : rows) {
TUnboxedValueBatch buffer(ResultType);
dataSerializer.Deserialize(std::move(part), ResultType, buffer);
if (!buffer.ForEachRow([&func](const auto& value) { return func(value); })) {
return false;
}
}
return true;
}
Ydb::ResultSet TProtoBuilder::BuildResultSet(TVector<NYql::NDq::TDqSerializedBatch>&& data) {
Ydb::ResultSet resultSet;
auto structType = AS_TYPE(TStructType, ResultType);
MKQL_ENSURE(structType, "Result is not a struct");
for (ui32 i = 0; i < structType->GetMembersCount(); ++i) {
auto& column = *resultSet.add_columns();
const ui32 memberIndex = ColumnOrder.empty() ? i : ColumnOrder[i];
column.set_name(TString(structType->GetMemberName(memberIndex)));
ExportTypeToProto(structType->GetMemberType(memberIndex), *column.mutable_type());
}
WriteData(std::move(data), [&](const NYql::NUdf::TUnboxedValuePod& value) {
ExportValueToProto(ResultType, value, *resultSet.add_rows(), &ColumnOrder);
return true;
});
return resultSet;
}
TString TProtoBuilder::GetSerializedType() const {
auto result = SerializeNode(ResultType, TypeEnv);
return result;
}
TString TProtoBuilder::AllocDebugInfo() {
TGuard<TScopedAlloc> allocGuard(Alloc);
return TStringBuilder{} << "Used: " << Alloc.GetUsed() << '\n'
<< "Peak used: " << Alloc.GetPeakUsed() << '\n'
<< "Allocated: " << Alloc.GetAllocated() << '\n'
<< "Peak allocated: " << Alloc.GetPeakAllocated() << '\n'
<< "Limit: " << Alloc.GetLimit();
}
} // NYql::NDqs
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