public static byte[] Serialized(SampleFingerprint fp)
{
return(PersistentCache.Get("templates", fp.Path + ".cbor", () =>
{
return new FingerprintTemplate(fp.Decode()).ToByteArray();
}));
}
public static byte[] ExtractorNormalized(string key, SampleFingerprint fp)
{
return(PersistentCache.Get(Path.Combine("normalized-extractor-transparency-files", key), ExtractorPath(key, fp), () =>
{
return SerializationUtils.Normalize(TransparencyStats.ExtractorRow(fp, key).Mime, Extractor(key, fp));
}));
}
public static byte[] Extractor(string key, SampleFingerprint fp)
{
return(PersistentCache.Get(Path.Combine("extractor-transparency-files", key), ExtractorPath(key, fp), () =>
{
using (var collector = new FileCollector(key))
{
new FingerprintTemplate(fp.Decode());
return collector.Files[0];
}
}));
}
public static Table ExtractorTable(SampleFingerprint fp)
{
return(PersistentCache.Get <Table>("extractor-transparency-stats", fp.Path, () =>
{
using (var collector = new TableCollector())
{
new FingerprintTemplate(fp.Decode());
return collector.Sum();
}
}));
}
public static TemplateFootprint Of(SampleFingerprint fp)
{
return(PersistentCache.Get("footprints", fp.Path, () =>
{
var footprint = new TemplateFootprint();
var serialized = NativeTemplate.Serialized(fp);
footprint.Count = 1;
footprint.Serialized = serialized.Length;
footprint.Hash = DataHash.Of(SerializationUtils.Normalize(serialized));
return footprint;
}));
}
public static Table ExtractorTable(SampleFingerprint fp)
{
return(PersistentCache.Get <Table>("extractor-transparency-stats", fp, () =>
{
var image = fp.Load();
using (var collector = new TableCollector())
{
new FingerprintTemplate(fp.Decode());
return collector.Accumulator.Summarize();
}
}));
}
static string ExtractorPath(string key, SampleFingerprint fp)
{
return(fp.Path + Extension(TransparencyStats.ExtractorRow(fp, key).Mime));
}
public static FingerprintTemplate Of(SampleFingerprint fp)
{
return(new FingerprintTemplate(Serialized(fp)));
}
public static TransparencyStats ExtractorRow(SampleFingerprint fp, String key)
{
return(ExtractorTable(fp).Rows.Where(r => r.Key == key).First().Stats);
}
public static T Get <T>(string category, SampleFingerprint fp, Func <T> supplier)
{
return(Get <T>(category, Path.Combine(fp.Dataset.Name, fp.Name), supplier));
}
