public void Save(ByteString id, byte[] bytes)
{
if (id.IsNull())
{
throw new ArgumentNullException(nameof(id));
}
if (id.Length != 32)
{
throw new ArgumentException(nameof(id));
}
if (bytes.IsNull())
{
throw new ArgumentException(nameof(bytes));
}
var fileName = Path.Combine(
directory.FullName,
HexConvert.FromBytes(id.ToByteArray()));
var fileInfo = new FileInfo(fileName);
// We assume the hash never collides.
if (fileInfo.Exists)
{
return;
}
using (var stream = fileInfo.OpenWrite())
stream.Write(bytes, 0, bytes.Length);
}
public override object ReadJson(
JsonReader reader, Type objectType, object existingValue,
JsonSerializer serializer)
{
return(new ByteString(HexConvert.ToBytes(
serializer.Deserialize <string>(reader) ?? "")));
}
public IEnumerable <(ByteString, byte[])> LoadAll()
{
var regex = new Regex("^[0-9a-fA-F]{64}$", RegexOptions.Singleline);
foreach (var file in directory.GetFiles())
{
var name = file.Name;
if (!regex.IsMatch(name))
{
continue;
}
var id = ByteString.CopyFrom(HexConvert.ToBytes(name));
var bytes = File.ReadAllBytes(file.FullName);
yield return(id, bytes);
}
}
public override string ToString() => HexConvert.FromBytes(bytes);
public override void WriteJson(
JsonWriter writer, object value, JsonSerializer serializer)
{
writer.WriteValue(
HexConvert.FromBytes(((ByteString)value).bytes));
}