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#include "yql_simple_udf_resolver.h"
#include <yql/essentials/providers/common/mkql/yql_type_mkql.h>
#include <yql/essentials/core/yql_holding_file_storage.h>
#include <yql/essentials/minikql/mkql_node.h>
#include <yql/essentials/minikql/mkql_type_builder.h>
#include <yql/essentials/minikql/mkql_program_builder.h>
#include <yql/essentials/minikql/mkql_utils.h>
#include <yql/essentials/minikql/computation/mkql_computation_node.h>
#include <library/cpp/digest/md5/md5.h>
#include <util/generic/vector.h>
#include <util/generic/hash_set.h>
#include <util/generic/hash.h>
#include <util/generic/string.h>
#include <util/system/guard.h>
#include <util/system/spinlock.h>
namespace NYql {
namespace NCommon {
using namespace NKikimr;
using namespace NKikimr::NMiniKQL;
class TSimpleUdfResolver : public IUdfResolver {
public:
TSimpleUdfResolver(const NKikimr::NMiniKQL::IFunctionRegistry* functionRegistry, const TFileStoragePtr& fileStorage, bool useFakeMD5)
: FunctionRegistry_(functionRegistry)
, FileStorage_(fileStorage)
, TypeInfoHelper_(new TTypeInfoHelper)
, UseFakeMD5_(useFakeMD5)
{}
TString GetMD5(const TString& path) const {
if (UseFakeMD5_) {
return MD5::Calc(path);
} else {
return {};
}
}
TMaybe<TFilePathWithMd5> GetSystemModulePath(const TStringBuf& moduleName) const override {
with_lock(Lock_) {
auto path = FunctionRegistry_->FindUdfPath(moduleName);
return path ? MakeMaybe<TFilePathWithMd5>(*path, GetMD5(*path)) : Nothing();
}
}
bool LoadMetadata(const TVector<TImport*>& imports,
const TVector<TFunction*>& functions, TExprContext& ctx) const override {
with_lock(Lock_) {
bool hasErrors = false;
THashSet<TString> requiredModules;
for (auto udfPtr : functions) {
auto& udf = *udfPtr;
TStringBuf moduleName, funcName;
if (!SplitUdfName(udf.Name, moduleName, funcName) || moduleName.empty() || funcName.empty()) {
ctx.AddError(TIssue(udf.Pos, TStringBuilder() <<
"Incorrect format of function name: " << udf.Name));
hasErrors = true;
} else {
requiredModules.insert(TString(moduleName));
}
}
THoldingFileStorage holdingFileStorage(FileStorage_);
auto newRegistry = FunctionRegistry_->Clone();
THashMap<std::pair<TString, TString>, THashSet<TString>> cachedModules;
for (auto import: imports) {
if (import->Modules) {
bool needLibrary = false;
for (auto& m : *import->Modules) {
if (requiredModules.contains(m)) {
needLibrary = true;
break;
}
}
if (!needLibrary) {
continue;
}
} else {
import->Modules.ConstructInPlace();
}
const TString& customUdfPrefix = import->Block->CustomUdfPrefix;
try {
THashSet<TString> modules;
if (FileStorage_) {
auto link = holdingFileStorage.FreezeFile(*import->Block);
auto path = link->GetPath().GetPath();
auto [it, inserted] = cachedModules.emplace(std::make_pair(path, customUdfPrefix), THashSet<TString>());
if (inserted) {
newRegistry->LoadUdfs(
path,
{},
NUdf::IRegistrator::TFlags::TypesOnly,
customUdfPrefix,
&modules);
it->second = modules;
} else {
modules = it->second;
}
} else {
if (import->Block->Type != EUserDataType::PATH) {
ctx.AddError(TIssue(import->Pos, TStringBuilder() <<
"Only path file type is supported, cannot load file with alias: " << import->FileAlias));
hasErrors = true;
continue;
}
auto [it, inserted] = cachedModules.emplace(std::make_pair(import->Block->Data, customUdfPrefix), THashSet<TString>());
if (inserted) {
newRegistry->LoadUdfs(
import->Block->Data,
{},
NUdf::IRegistrator::TFlags::TypesOnly,
customUdfPrefix,
&modules);
it->second = modules;
} else {
modules = it->second;
}
}
import->Modules->assign(modules.begin(), modules.end());
}
catch (yexception& e) {
ctx.AddError(TIssue(import->Pos, TStringBuilder()
<< "Internal error of loading udf module: " << import->FileAlias
<< ", reason: " << e.what()));
hasErrors = true;
}
}
hasErrors = !LoadFunctionsMetadata(functions, *newRegistry, TypeInfoHelper_, ctx) || hasErrors;
return !hasErrors;
}
}
TResolveResult LoadRichMetadata(const TVector<TImport>& imports) const override {
Y_UNUSED(imports);
ythrow yexception() << "LoadRichMetadata is not supported in SimpleUdfResolver";
}
bool ContainsModule(const TStringBuf& moduleName) const override {
return FunctionRegistry_->IsLoadedUdfModule(moduleName);
}
private:
mutable TAdaptiveLock Lock_;
const NKikimr::NMiniKQL::IFunctionRegistry* FunctionRegistry_;
TFileStoragePtr FileStorage_;
NUdf::ITypeInfoHelper::TPtr TypeInfoHelper_;
const bool UseFakeMD5_;
};
IUdfResolver::TPtr CreateSimpleUdfResolver(
const NKikimr::NMiniKQL::IFunctionRegistry* functionRegistry,
const TFileStoragePtr& fileStorage,
bool useFakeMD5
) {
return new TSimpleUdfResolver(functionRegistry, fileStorage, useFakeMD5);
}
bool LoadFunctionsMetadata(const TVector<IUdfResolver::TFunction*>& functions,
const NKikimr::NMiniKQL::IFunctionRegistry& functionRegistry,
NUdf::ITypeInfoHelper::TPtr typeInfoHelper,
TExprContext& ctx) {
bool hasErrors = false;
TScopedAlloc alloc(__LOCATION__);
TTypeEnvironment env(alloc);
for (auto udfPtr : functions) {
auto& udf = *udfPtr;
try {
TType* mkqlUserType = nullptr;
if (udf.UserType) {
TStringStream err;
mkqlUserType = BuildType(*udf.UserType, {env}, err);//
if (!mkqlUserType) {
ctx.AddError(TIssue(udf.Pos, TStringBuilder() << "Invalid user type for function: "
<< udf.Name << ", error: " << err.Str()));
hasErrors = true;
continue;
}
}
auto secureParamsProvider = MakeSimpleSecureParamsProvider(udf.SecureParams);
TFunctionTypeInfo funcInfo;
auto status = functionRegistry.FindFunctionTypeInfo(env, typeInfoHelper, nullptr,
udf.Name, mkqlUserType, udf.TypeConfig, NUdf::IUdfModule::TFlags::TypesOnly, {}, secureParamsProvider.get(), &funcInfo);
if (!status.IsOk()) {
ctx.AddError(TIssue(udf.Pos, TStringBuilder() << "Failed to find UDF function: " << udf.Name
<< ", reason: " << status.GetError()));
hasErrors = true;
continue;
}
udf.NormalizedName = udf.Name;
udf.CallableType = ConvertMiniKQLType(udf.Pos, funcInfo.FunctionType, ctx);
YQL_ENSURE(udf.CallableType);
if (funcInfo.RunConfigType) {
udf.RunConfigType = ConvertMiniKQLType(udf.Pos, const_cast<TType*>(funcInfo.RunConfigType), ctx);
YQL_ENSURE(udf.RunConfigType);
}
if (funcInfo.UserType) {
udf.NormalizedUserType = ConvertMiniKQLType(udf.Pos, const_cast<TType*>(funcInfo.UserType), ctx);
YQL_ENSURE(udf.NormalizedUserType);
}
udf.SupportsBlocks = funcInfo.SupportsBlocks;
udf.IsStrict = funcInfo.IsStrict;
} catch (const std::exception& e) {
ctx.AddError(TIssue(udf.Pos, TStringBuilder()
<< "Internal error was found when udf metadata is loading for function: " << udf.Name
<< ", reason: " << e.what()));
hasErrors = true;
}
}
return !hasErrors;
}
} // namespace NCommon
} // namespace NYql
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