public FileParseResult Read(string fileName)
{
FileParseResult result = new FileParseResult();
using (var reader = new BinaryReader(File.OpenRead(fileName)))
{
RaeadHeader(reader);
result.Hash = ReadHash(reader, hashSize);
result.Frequency = ReadFrequency(reader, frequencySize);
result.Distances = ReadDistances(reader, distancesSize);
}
return(result);
}
public string WriteToFile(string fileName, FileParseResult result, byte[] hash, string output, Features features)
{
using (Stream stream = new FileStream(output, FileMode.Create))
{
using (BinaryWriter bw = new BinaryWriter(stream))
{
WriteHeader(bw, result, (int)features);
WriteHash(bw, result.Hash);
WriteFrequency(bw, result.Frequency);
WriteDistances(bw, result.Distances);
bw.Close();
}
stream.Close();
}
return(output);
}
public static void WriteHeader(BinaryWriter bw, FileParseResult result, int features)
{
int hashOffset = 7 * 4 + 4 * 10;
int hashSize = result.Hash.Count * 8 + result.Hash.Sum(h => Encoding.UTF8.GetBytes(h.Value).Length);
int frequencyOffset = hashOffset + hashSize + 4 * 10;
int frequencySize = result.Frequency.Count * 4 + result.Frequency.Count * 8;
int distancesOffset = frequencyOffset + frequencySize + 4 * 10;
int distancesSize = result.Distances.Sum(h => h.Value.Count) + result.Distances.Count * 8;
bw.Write(hashOffset);
bw.Write(hashSize);
bw.Write(frequencyOffset);
bw.Write(frequencySize);
bw.Write(distancesOffset);
bw.Write(distancesSize);
bw.Write(features);
}
