aboutsummaryrefslogtreecommitdiffstats
path: root/library/cpp/codecs/codecs_registry.cpp
blob: 9bd16d397888341c9c9311abd07e0fd9ebf823f0 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
#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_ABORT_UNLESS(!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);
    }

}