public static IHashAlgorithim GetAlgorithimInterface(this Enumerations.ChecksumAlgorithim val)
{
switch (val)
{
case Enumerations.ChecksumAlgorithim.None:
return(new Empty());
case Enumerations.ChecksumAlgorithim.MD5:
return(new MD5());
case Enumerations.ChecksumAlgorithim.SHA1:
return(new SHA1());
case Enumerations.ChecksumAlgorithim.SHA256:
return(new SHA256());
case Enumerations.ChecksumAlgorithim.SHA384:
return(new SHA384());
case Enumerations.ChecksumAlgorithim.SHA512:
return(new SHA512());
default:
throw new Exception($"Unhandled {nameof(Enumerations.ChecksumAlgorithim)}: {val}");
}
}
private static IHashAlgorithim GetAlgorithim(string flag)
{
if (string.IsNullOrWhiteSpace(flag))
{
throw new ArgumentException($"The checksum algorithim flag is empty/null.");
}
Enumerations.ChecksumAlgorithim algorithim = Enumerations.ChecksumAlgorithim.None;
if (flag.Equals(m_Algorithim_Md5, StringComparison.OrdinalIgnoreCase))
{
Log("Algorithim is MD5.");
algorithim = Enumerations.ChecksumAlgorithim.MD5;
}
else if (flag.Equals(m_Algorithim_Sha_1, StringComparison.OrdinalIgnoreCase))
{
Log("Algorithim is SHA-1.");
algorithim = Enumerations.ChecksumAlgorithim.SHA1;
}
else if (flag.Equals(m_Algorithim_Sha_256, StringComparison.OrdinalIgnoreCase))
{
Log("Algorithim is SHA-256.");
algorithim = Enumerations.ChecksumAlgorithim.SHA256;
}
else if (flag.Equals(m_Algorithim_Sha_384, StringComparison.OrdinalIgnoreCase))
{
Log("Algorithim is SHA384.");
algorithim = Enumerations.ChecksumAlgorithim.SHA384;
}
else if (flag.Equals(m_Algorithim_Sha_512, StringComparison.OrdinalIgnoreCase))
{
Log("Algorithim is SHA-512.");
algorithim = Enumerations.ChecksumAlgorithim.SHA512;
}
else
{
throw new ArgumentException($"The checksum algorithim flag is unhandled: \"{flag}\".");
}
return(HashAlgorithimFactory.Get(algorithim));
}
public static IHashAlgorithim Get(Enumerations.ChecksumAlgorithim algorithim)
{
IHashAlgorithim hashAlgoithim = new Empty();
switch (algorithim)
{
case Enumerations.ChecksumAlgorithim.None:
// Do nothing. Keep the case so that we know it's being
// handled and it's not a mistake.
break;
case Enumerations.ChecksumAlgorithim.MD5:
hashAlgoithim = new MD5();
break;
case Enumerations.ChecksumAlgorithim.SHA1:
hashAlgoithim = new SHA1();
break;
case Enumerations.ChecksumAlgorithim.SHA256:
hashAlgoithim = new SHA256();
break;
case Enumerations.ChecksumAlgorithim.SHA384:
hashAlgoithim = new SHA384();
break;
case Enumerations.ChecksumAlgorithim.SHA512:
hashAlgoithim = new SHA512();
break;
default:
throw new ArgumentException($"Unhandled {nameof(Enumerations.ChecksumAlgorithim)}: {algorithim}");
}
return(hashAlgoithim);
}
