intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 39 insertions, 0 deletions

diff --git a/library/cpp/codecs/static/builder.cpp b/library/cpp/codecs/static/builder.cpp
new file mode 100644
index 0000000000..93e34a3edb
--- /dev/null
+++ b/library/cpp/codecs/static/builder.cpp
@@ -0,0 +1,39 @@
+#include "builder.h"
+#include "common.h"
+
+#include <library/cpp/codecs/static/static_codec_info.pb.h>
+
+#include <library/cpp/codecs/codecs.h>
+
+#include <util/generic/yexception.h>
+#include <util/string/subst.h>
+
+namespace NCodecs {
+    TStaticCodecInfo BuildStaticCodec(const TVector<TString>& trainingData, const TCodecBuildInfo& info) {
+        TStaticCodecInfo result;
+        TCodecPtr codec = ICodec::GetInstance(info.CodecName);
+        Y_ENSURE_EX(codec, TCodecException() << "empty codec is not allowed");
+
+        codec->LearnX(trainingData.begin(), trainingData.end(), info.SampleSizeMultiplier);
+        {
+            TStringOutput sout{*result.MutableStoredCodec()};
+            ICodec::Store(&sout, codec);
+        }
+
+        auto& debugInfo = *result.MutableDebugInfo();
+        debugInfo.SetStoredCodecHash(DataSignature(result.GetStoredCodec()));
+        debugInfo.SetCodecName(info.CodecName);
+        debugInfo.SetSampleSizeMultiplier(info.SampleSizeMultiplier);
+        debugInfo.SetTimestamp(info.Timestamp);
+        debugInfo.SetRevisionInfo(info.RevisionInfo);
+        debugInfo.SetTrainingSetComment(info.TrainingSetComment);
+        debugInfo.SetTrainingSetResId(info.TrainingSetResId);
+        return result;
+    }
+
+    TString GetStandardFileName(const TStaticCodecInfo& info) {
+        TString cName = info.GetDebugInfo().GetCodecName();
+        SubstGlobal(cName, ':', '.');
+        return TStringBuilder() << cName << "." << info.GetDebugInfo().GetTimestamp() << ".codec_info";
+    }
+}