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#include "codecs_registry.h"
#include "delta_codec.h"
#include "huffman_codec.h"
#include "pfor_codec.h"
#include "solar_codec.h"
#include "comptable_codec.h"
#include "zstd_dict_codec.h"
#include <library/cpp/blockcodecs/codecs.h>
#include <util/string/builder.h>
#include <util/string/cast.h>
namespace NCodecs {
TCodecPtr ICodec::GetInstance(TStringBuf name) {
return Singleton<NPrivate::TCodecRegistry>()->GetCodec(name);
}
TVector<TString> ICodec::GetCodecsList() {
return Singleton<NPrivate::TCodecRegistry>()->GetCodecsList();
}
namespace NPrivate {
void TCodecRegistry::RegisterFactory(TFactoryPtr fac) {
TVector<TString> names = fac->ListNames();
for (const auto& name : names) {
Y_VERIFY(!Registry.contains(name), "already has %s", name.data());
Registry[name] = fac;
}
}
TCodecPtr TCodecRegistry::GetCodec(TStringBuf name) const {
using namespace NPrivate;
if (!name || "none" == name) {
return nullptr;
}
if (TStringBuf::npos == name.find(':')) {
Y_ENSURE_EX(Registry.contains(name), TNoCodecException(name));
return Registry.find(name)->second->MakeCodec(name);
} else {
TPipelineCodec* pipe = new TPipelineCodec;
do {
TStringBuf v = name.NextTok(':');
pipe->AddCodec(GetCodec(v));
} while (name);
return pipe;
}
}
TVector<TString> TCodecRegistry::GetCodecsList() const {
using namespace NPrivate;
TVector<TString> vs;
vs.push_back("none");
for (const auto& it : Registry) {
vs.push_back(it.first);
}
Sort(vs.begin(), vs.end());
return vs;
}
struct TSolarCodecFactory : ICodecFactory {
TCodecPtr MakeCodec(TStringBuf name) const override {
if (TSolarCodec::MyNameShortInt() == name) {
return new TSolarCodecShortInt();
}
if (TSolarCodec::MyName() == name) {
return new TSolarCodec();
}
if (name.EndsWith(TStringBuf("-a"))) {
return MakeCodecImpl<TAdaptiveSolarCodec>(name, name.SubStr(TSolarCodec::MyName().size()).Chop(2));
} else {
return MakeCodecImpl<TSolarCodec>(name, name.SubStr(TSolarCodec::MyName().size()));
}
}
template <class TCodecCls>
TCodecPtr MakeCodecImpl(const TStringBuf& name, const TStringBuf& type) const {
if (TStringBuf("-8k") == type) {
return new TCodecCls(1 << 13);
}
if (TStringBuf("-16k") == type) {
return new TCodecCls(1 << 14);
}
if (TStringBuf("-32k") == type) {
return new TCodecCls(1 << 15);
}
if (TStringBuf("-64k") == type) {
return new TCodecCls(1 << 16);
}
if (TStringBuf("-256k") == type) {
return new TCodecCls(1 << 18);
}
ythrow TNoCodecException(name);
}
TVector<TString> ListNames() const override {
TVector<TString> vs;
vs.push_back(ToString(TSolarCodec::MyName()));
vs.push_back(ToString(TSolarCodec::MyName8k()));
vs.push_back(ToString(TSolarCodec::MyName16k()));
vs.push_back(ToString(TSolarCodec::MyName32k()));
vs.push_back(ToString(TSolarCodec::MyName64k()));
vs.push_back(ToString(TSolarCodec::MyName256k()));
vs.push_back(ToString(TSolarCodec::MyName8kAdapt()));
vs.push_back(ToString(TSolarCodec::MyName16kAdapt()));
vs.push_back(ToString(TSolarCodec::MyName32kAdapt()));
vs.push_back(ToString(TSolarCodec::MyName64kAdapt()));
vs.push_back(ToString(TSolarCodec::MyName256kAdapt()));
vs.push_back(ToString(TSolarCodec::MyNameShortInt()));
return vs;
}
};
struct TZStdDictCodecFactory : ICodecFactory {
TCodecPtr MakeCodec(TStringBuf name) const override {
return new TZStdDictCodec(TZStdDictCodec::ParseCompressionName(name));
}
TVector<TString> ListNames() const override {
return TZStdDictCodec::ListCompressionNames();
}
};
struct TCompTableCodecFactory : ICodecFactory {
TCodecPtr MakeCodec(TStringBuf name) const override {
if (TCompTableCodec::MyNameHQ() == name) {
return new TCompTableCodec(TCompTableCodec::Q_HIGH);
} else if (TCompTableCodec::MyNameLQ() == name) {
return new TCompTableCodec(TCompTableCodec::Q_LOW);
} else {
Y_ENSURE_EX(false, TNoCodecException(name));
return nullptr;
}
}
TVector<TString> ListNames() const override {
TVector<TString> vs;
vs.push_back(ToString(TCompTableCodec::MyNameHQ()));
vs.push_back(ToString(TCompTableCodec::MyNameLQ()));
return vs;
}
};
struct TBlockCodec : ICodec {
const NBlockCodecs::ICodec* Codec;
TBlockCodec(TStringBuf name)
: Codec(NBlockCodecs::Codec(name))
{
}
TString GetName() const override {
return ToString(Codec->Name());
}
ui8 Encode(TStringBuf r, TBuffer& b) const override {
Codec->Encode(r, b);
return 0;
}
void Decode(TStringBuf r, TBuffer& b) const override {
// TODO: throws exception that is not TCodecException
Codec->Decode(r, b);
}
protected:
void DoLearn(ISequenceReader&) override {
}
};
struct TBlockCodecsFactory : ICodecFactory {
using TRegistry = THashMap<TString, TCodecPtr>;
TRegistry Registry;
TBlockCodecsFactory() {
for (TStringBuf codec : NBlockCodecs::ListAllCodecs()) {
Register(codec);
}
}
void Register(TStringBuf name) {
TCodecPtr p = Registry[name] = new TBlockCodec(name);
Registry[p->GetName()] = p;
}
TCodecPtr MakeCodec(TStringBuf name) const override {
if (!Registry.contains(name)) {
ythrow TNoCodecException(name);
}
return Registry.find(name)->second;
}
TVector<TString> ListNames() const override {
TVector<TString> res;
for (const auto& it : Registry) {
res.push_back(it.first);
}
return res;
}
};
TCodecRegistry::TCodecRegistry() {
RegisterFactory(new TInstanceFactory<TTrivialCodec>);
RegisterFactory(new TInstanceFactory<TTrivialTrainableCodec>);
RegisterFactory(new TInstanceFactory<THuffmanCodec>);
RegisterFactory(new TInstanceFactory<TPForCodec<ui64, true>>);
RegisterFactory(new TInstanceFactory<TPForCodec<ui32, true>>);
RegisterFactory(new TSolarCodecFactory);
RegisterFactory(new TZStdDictCodecFactory);
RegisterFactory(new TCompTableCodecFactory);
RegisterFactory(new TBlockCodecsFactory);
}
}
void RegisterCodecFactory(TCodecFactoryPtr fact) {
Singleton<NPrivate::TCodecRegistry>()->RegisterFactory(fact);
}
}
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