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#include "yql_dispatch.h"
#include <yql/essentials/core/yql_expr_type_annotation.h>
#include <yql/essentials/ast/yql_expr.h>
#include <yql/essentials/utils/log/log.h>
#include <library/cpp/string_utils/levenshtein_diff/levenshtein_diff.h>
#include <util/string/split.h>
#include <util/random/random.h>
#include <util/datetime/base.h>
namespace NYql {
namespace NPrivate {
template <>
TParser<TString> GetDefaultParser<TString>() {
return [] (const TString& str) {
return str;
};
}
template<>
TParser<bool> GetDefaultParser<bool>() {
// Special handle of empty value to properly set setting for empty pragmas like yt.UseFeautre;
return [] (const TString& str) {
return str ? FromString<bool>(str) : true;
};
}
template <>
TParser<TGUID> GetDefaultParser<TGUID>() {
return [] (const TString& str) {
TGUID guid;
if (!GetGuid(str, guid)) {
throw yexception() << "Bad GUID format";
}
return guid;
};
}
template<>
TParser<NSize::TSize> GetDefaultParser<NSize::TSize>() {
return [] (const TString& str) -> NSize::TSize {
return NSize::ParseSize(str); // Support suffixes k, m, g, ...
};
}
template<>
TParser<TInstant> GetDefaultParser<TInstant>() {
return [] (const TString& str) {
TInstant val;
if (!TInstant::TryParseIso8601(str, val)
&& !TInstant::TryParseRfc822(str, val)
&& !TInstant::TryParseHttp(str, val)
&& !TInstant::TryParseX509(str, val)
) {
throw yexception() << "Bad date/time format";
}
return val;
};
}
#define YQL_DEFINE_PRIMITIVE_SETTING_PARSER(type) \
template<> \
TParser<type> GetDefaultParser<type>() { \
return [] (const TString& s) { return FromString<type>(s); }; \
}
#define YQL_DEFINE_CONTAINER_SETTING_PARSER(type) \
template <> \
TParser<type> GetDefaultParser<type>() { \
return [] (const TString& str) { \
type res; \
StringSplitter(str).SplitBySet(",;| ").AddTo(&res); \
for (auto& s: res) { \
if (s.empty()) { \
throw yexception() << "Empty value item"; \
} \
} \
return res; \
}; \
}
YQL_PRIMITIVE_SETTING_PARSER_TYPES(YQL_DEFINE_PRIMITIVE_SETTING_PARSER)
YQL_CONTAINER_SETTING_PARSER_TYPES(YQL_DEFINE_CONTAINER_SETTING_PARSER)
} // NPrivate
namespace NCommon {
bool TSettingDispatcher::IsRuntime(const TString& name) {
auto normalizedName = NormalizeName(name);
if (auto handler = Handlers.Value(normalizedName, TSettingHandler::TPtr())) {
return handler->IsRuntime();
}
return false;
}
bool TSettingDispatcher::Dispatch(const TString& cluster, const TString& name, const TMaybe<TString>& value, EStage stage, const TErrorCallback& errorCallback) {
auto normalizedName = NormalizeName(name);
if (auto handler = Handlers.Value(normalizedName, TSettingHandler::TPtr())) {
if (cluster != ALL_CLUSTERS) {
if (!handler->IsRuntime()) {
return errorCallback(TStringBuilder() << "Static setting " << name.Quote() << " cannot be set for specific cluster", true);
}
if (!ValidClusters.contains(cluster)) {
TStringBuilder nearClusterMsg;
for (auto& item: ValidClusters) {
if (NLevenshtein::Distance(cluster, item) < DefaultMistypeDistance) {
nearClusterMsg << ", did you mean " << item.Quote() << '?';
break;
}
}
return errorCallback(TStringBuilder() << "Unknown cluster name " << cluster.Quote()
<< " for setting " << name.Quote() << nearClusterMsg, true);
}
}
if (!value && !handler->IsRuntime()) {
return errorCallback(TStringBuilder() << "Static setting " << name.Quote() << " cannot be reset to default", true);
}
bool validateOnly = true;
switch (stage) {
case EStage::RUNTIME:
validateOnly = !handler->IsRuntime();
break;
case EStage::STATIC:
validateOnly = handler->IsRuntime();
break;
case EStage::CONFIG:
validateOnly = false;
break;
}
return handler->Handle(cluster, value, validateOnly, errorCallback);
} else {
// ignore unknown names in config
if (stage == EStage::CONFIG) {
return true;
}
TStringBuilder nearHandlerMsg;
for (auto& item: Handlers) {
if (NLevenshtein::Distance(normalizedName, item.first) < DefaultMistypeDistance) {
nearHandlerMsg << ", did you mean " << item.second->GetDisplayName().Quote() << '?';
break;
}
}
return errorCallback(TStringBuilder() << "Unknown setting name " << name.Quote() << nearHandlerMsg, true);
}
}
void TSettingDispatcher::FreezeDefaults() {
for (auto& item: Handlers) {
item.second->FreezeDefault();
}
}
void TSettingDispatcher::Restore() {
for (auto& item: Handlers) {
item.second->Restore(ALL_CLUSTERS);
}
}
void TSettingDispatcher::Enumerate(std::function<void(std::string_view)> callback) {
for (const auto& name : Names) {
callback(name);
}
}
TSettingDispatcher::TErrorCallback TSettingDispatcher::GetDefaultErrorCallback() {
return [] (const TString& msg, bool isError) -> bool {
if (isError) {
YQL_LOG(ERROR) << msg;
throw yexception() << msg;
}
YQL_LOG(WARN) << msg;
return true;
};
}
TSettingDispatcher::TErrorCallback TSettingDispatcher::GetErrorCallback(TPositionHandle pos, TExprContext& ctx) {
return [pos, &ctx](const TString& msg, bool isError) -> bool {
if (isError) {
ctx.AddError(YqlIssue(ctx.GetPosition(pos), TIssuesIds::DEFAULT_ERROR, msg));
return false;
} else {
return ctx.AddWarning(YqlIssue(ctx.GetPosition(pos), TIssuesIds::YQL_PRAGMA_WARNING_MSG, msg));
}
};
}
} // NCommon
} // NYql
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