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#include "discover.h"
#include <yql/essentials/utils/backtrace/backtrace.h>
#include <yql/essentials/minikql/mkql_node.h>
#include <yql/essentials/minikql/mkql_type_builder.h>
#include <yql/essentials/minikql/mkql_utils.h>
#include <yql/essentials/providers/common/schema/mkql/yql_mkql_schema.h>
#include <yql/essentials/providers/common/proto/udf_resolver.pb.h>
#include <library/cpp/protobuf/util/pb_io.h>
#include <util/generic/hash.h>
#include <util/generic/hash_set.h>
using namespace NKikimr;
using namespace NKikimr::NMiniKQL;
namespace NUdfResolver {
namespace {
NYql::TResolveResult DoDiscover(const NYql::TResolve& inMsg, IMutableFunctionRegistry& functionRegistry) {
NYql::TResolveResult outMsg;
TScopedAlloc alloc(__LOCATION__);
TTypeEnvironment env(alloc);
NUdf::ITypeInfoHelper::TPtr typeInfoHelper(new TTypeInfoHelper());
THashMap<std::pair<TString, TString>, THashSet<TString>> cachedModules;
for (auto& import : inMsg.GetImports()) {
auto importRes = outMsg.AddImports();
importRes->SetFileAlias(import.GetFileAlias());
importRes->SetCustomUdfPrefix(import.GetCustomUdfPrefix());
auto [it, inserted] = cachedModules.emplace(std::make_pair(import.GetPath(), import.GetCustomUdfPrefix()), THashSet<TString>());
if (inserted) {
THashSet<TString> modules;
functionRegistry.LoadUdfs(import.GetPath(),
{},
NUdf::IRegistrator::TFlags::TypesOnly,
import.GetCustomUdfPrefix(),
&modules);
FillImportResultModules(modules, *importRes);
it->second = modules;
} else {
FillImportResultModules(it->second, *importRes);
}
}
for (const auto& module : functionRegistry.GetAllModuleNames()) {
const auto& functions = functionRegistry.GetModuleFunctions(module);
for (auto& f : functions) {
const TString funcName = NKikimr::NMiniKQL::FullName(module, f.first);
auto udfRes = outMsg.AddUdfs();
udfRes->SetName(funcName);
udfRes->SetIsTypeAwareness(f.second.IsTypeAwareness);
TFunctionTypeInfo funcInfo;
if (!f.second.IsTypeAwareness) {
auto status = functionRegistry.FindFunctionTypeInfo(env, typeInfoHelper,
nullptr, funcName, nullptr, nullptr, NUdf::IUdfModule::TFlags::TypesOnly, {}, nullptr, &funcInfo);
if (!status.IsOk()) {
udfRes->SetError("Failed to resolve signature, error: " + status.GetError());
}
}
// nullptr for polymorphic functions
if (funcInfo.FunctionType) {
udfRes->SetCallableType(NYql::NCommon::WriteTypeToYson(funcInfo.FunctionType, NYT::NYson::EYsonFormat::Text));
udfRes->SetArgCount(funcInfo.FunctionType->GetArgumentsCount());
udfRes->SetOptionalArgCount(funcInfo.FunctionType->GetOptionalArgumentsCount());
if (funcInfo.RunConfigType) {
udfRes->SetRunConfigType(NYql::NCommon::WriteTypeToYson(funcInfo.RunConfigType, NYT::NYson::EYsonFormat::Text));
}
udfRes->SetSupportsBlocks(funcInfo.SupportsBlocks);
udfRes->SetIsStrict(funcInfo.IsStrict);
}
}
}
return outMsg;
}
void Print(const NYql::TResolveResult& result, IOutputStream& out, bool printAsProto) {
if (printAsProto) {
result.SerializeToArcadiaStream(&out);
return;
}
SerializeToTextFormat(result, out);
out << "UDF count: " << result.UdfsSize() << Endl;
}
void DiscoverInFiles(const TVector<TString>& udfPaths, IOutputStream& out, bool printAsProto) {
NYql::TResolve inMsg;
for (auto& path : udfPaths) {
auto import = inMsg.AddImports();
import->SetPath(path);
import->SetFileAlias(path);
}
auto functionRegistry = CreateFunctionRegistry(IBuiltinFunctionRegistry::TPtr());
auto newRegistry = functionRegistry->Clone();
newRegistry->SetBackTraceCallback(&NYql::NBacktrace::KikimrBackTrace);
NYql::TResolveResult result = DoDiscover(inMsg, *newRegistry);
Print(result, out, printAsProto);
}
}
void DiscoverInDir(const TString& dir, IOutputStream& out, bool printAsProto) {
TVector<TString> udfPaths;
NMiniKQL::FindUdfsInDir(dir, &udfPaths);
DiscoverInFiles(udfPaths, out, printAsProto);
}
void DiscoverInFile(const TString& filePath, IOutputStream& out, bool printAsProto) {
DiscoverInFiles({ filePath }, out, printAsProto);
}
void Discover(IInputStream& in, IOutputStream& out, bool printAsProto) {
NYql::TResolve inMsg;
if (!inMsg.ParseFromArcadiaStream(&in)) {
ythrow yexception() << "Bad input TResolve proto message";
}
auto functionRegistry = CreateFunctionRegistry(IBuiltinFunctionRegistry::TPtr());
auto newRegistry = functionRegistry->Clone();
newRegistry->SetBackTraceCallback(&NYql::NBacktrace::KikimrBackTrace);
NYql::TResolveResult result = DoDiscover(inMsg, *newRegistry);
Print(result, out, printAsProto);
}
void FillImportResultModules(const THashSet<TString>& modules, NYql::TImportResult& importRes) {
for (auto& m : modules) {
importRes.AddModules(m);
}
}
}
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