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#include "interned_attributes.h"
#include <yt/yt/core/misc/collection_helpers.h>
#include <yt/yt/core/misc/serialize.h>
namespace NYT::NYTree {
///////////////////////////////////////////////////////////////////////////////
namespace {
class TInternedAttributeRegistry
{
public:
void Intern(const TString& uninternedKey, TInternedAttributeKey internedKey)
{
YT_VERIFY(AttributeNameToIndex_.emplace(uninternedKey, internedKey).second);
YT_VERIFY(AttributeIndexToName_.emplace(internedKey, uninternedKey).second);
}
TInternedAttributeKey GetInterned(TStringBuf uninternedKey)
{
auto it = AttributeNameToIndex_.find(uninternedKey);
return it == AttributeNameToIndex_.end() ? InvalidInternedAttribute : it->second;
}
const TString& GetUninterned(TInternedAttributeKey internedKey)
{
return GetOrCrash(AttributeIndexToName_, internedKey);
}
private:
THashMap<TString, TInternedAttributeKey> AttributeNameToIndex_;
THashMap<TInternedAttributeKey, TString> AttributeIndexToName_;
};
} // namespace
void InternAttribute(const TString& uninternedKey, TInternedAttributeKey internedKey)
{
Singleton<TInternedAttributeRegistry>()->Intern(uninternedKey, internedKey);
}
////////////////////////////////////////////////////////////////////////////////
TInternedAttributeKey::TInternedAttributeKey()
: Code_(InvalidInternedAttribute.Code_)
{ }
void TInternedAttributeKey::Save(TStreamSaveContext& context) const
{
using NYT::Save;
Save(context, Unintern());
}
void TInternedAttributeKey::Load(TStreamLoadContext& context)
{
using NYT::Load;
auto uninternedKey = Load<TString>(context);
Code_ = Lookup(uninternedKey).Code_;
}
/*static*/ TInternedAttributeKey TInternedAttributeKey::Lookup(TStringBuf uninternedKey)
{
return Singleton<TInternedAttributeRegistry>()->GetInterned(uninternedKey);
}
const TString& TInternedAttributeKey::Unintern() const
{
return Singleton<TInternedAttributeRegistry>()->GetUninterned(*this);
}
////////////////////////////////////////////////////////////////////////////////
REGISTER_INTERNED_ATTRIBUTE(count, CountInternedAttribute)
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT::NYTree
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