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#include <library/cpp/comptable/comptable.h>
#include <util/random/random.h>
#include <util/random/fast.h>
#include <time.h>
#include <stdlib.h>
using namespace NCompTable;
template <bool HQ>
void DoTest(const TCompressorTable& table, const TVector<TString>& lines) {
TVector<char> compressed;
TVector<char> decompressed;
TChunkCompressor compressor(HQ, table);
TChunkDecompressor deCompressor(HQ, table);
size_t origSize = 0;
size_t compSize = 0;
float cl1 = clock();
for (size_t i = 0; i < lines.size(); ++i) {
const TString& line = lines[i];
compressor.Compress(line, &compressed);
origSize += line.size();
compSize += compressed.size();
TStringBuf in(compressed.data(), compressed.size());
deCompressor.Decompress(in, &decompressed);
if (decompressed.size() != line.size() || memcmp(decompressed.data(), line.data(), decompressed.size())) {
Cout << i << "\n";
Cout << line << "\n"
<< TString(decompressed.data(), decompressed.size()) << "\n";
abort();
}
}
float cl2 = clock();
float secs = (cl2 - cl1) / CLOCKS_PER_SEC;
Cout << "origSize: " << origSize << "\tcompSize: " << compSize << Endl;
Cout << "yep! compression + decompression speed " << origSize / 1024.0f / 1024.0f / secs << " mbps\n";
Cout << "yep! compression ratio " << double(origSize) / double(compSize + 1) << "\n";
}
int main(int argc, const char* argv[]) {
TReallyFastRng32 rr(17);
TVector<TString> lines;
/*FILE *fp = fopen("res", "rb");
while (!feof(fp)) {
char buff[4096];
fscanf(fp, "%s", buff);
lines.push_back(TString(buff));
}*/
//for (size_t i = 0; i < 10000000; ++i) {
//for (size_t i = 0; i < 1000000; ++i) {
for (size_t i = 0; i < 1000000; ++i) {
size_t size = rr.Uniform(32);
TString res = "www.yandex.ru/yandsearch?text=";
for (size_t j = 0; j < size; ++j) {
res += "qwer"[rr.Uniform(4)];
}
lines.push_back(res);
}
THolder<TDataSampler> sampler(new TDataSampler);
for (size_t i = 0; i < lines.size(); ++i) {
sampler->AddStat(lines[i]);
}
TCompressorTable table;
sampler->BuildTable(table);
DoTest<true>(table, lines);
DoTest<false>(table, lines);
Y_UNUSED(argc);
Y_UNUSED(argv);
return 0;
}
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