/// <summary>
/// Register a new IPFS algorithm.
/// </summary>
/// <param name="name">
/// The name of the algorithm.
/// </param>
/// <param name="code">
/// The IPFS code assigned to thealgorithm.
/// </param>
/// <param name="encode">
/// A <c>Func</c> to encode a byte array. If not specified, then a <c>Func</c> is created to
/// throw a <see cref="NotImplementedException" />.
/// </param>
/// <param name="decode">
/// A <c>Func</c> to decode a string. If not specified, then a <c>Func</c> is created to
/// throw a <see cref="NotImplementedException" />.
/// </param>
/// <returns>
/// A new <see cref="MultiBaseAlgorithm" />.
/// </returns>
public static MultiBaseAlgorithm Register(string name,
char code,
Func <byte[], string> encode = null,
Func <string, byte[]> decode = null)
{
if (string.IsNullOrWhiteSpace(name))
{
throw new ArgumentNullException("name");
}
if (Names.ContainsKey(name))
{
throw new ArgumentException(
string.Format("The IPFS multi-base algorithm name '{0}' is already defined.", name));
}
if (Codes.ContainsKey(code))
{
throw new ArgumentException(
string.Format("The IPFS multi-base algorithm code '{0}' is already defined.", code));
}
if (encode == null)
{
encode = bytes =>
{
throw new NotImplementedException(
string.Format("The IPFS encode multi-base algorithm '{0}' is not implemented.", name));
}
}
;
if (decode == null)
{
decode = s =>
{
throw new NotImplementedException(
string.Format("The IPFS decode multi-base algorithm '{0}' is not implemented.", name));
}
}
;
var a = new MultiBaseAlgorithm
{
Name = name,
Code = code,
Encode = encode,
Decode = decode
};
Names[name] = a;
Codes[code] = a;
return(a);
}
/// <summary>
/// Remove an IPFS algorithm from the registry.
/// </summary>
/// <param name="algorithm">
/// The <see cref="MultiBaseAlgorithm" /> to remove.
/// </param>
public static void Deregister(MultiBaseAlgorithm algorithm)
{
Names.Remove(algorithm.Name);
Codes.Remove(algorithm.Code);
}
