/// <nodoc />
public NodeDedupIdentifier(byte[] hashResult, NodeAlgorithmId algorithmId)
: base(hashResult, (byte)algorithmId)
{
Contract.Requires(hashResult != null);
Contract.Check(algorithmId.IsValidNode())?.Assert($"The given hash does not represent a {nameof(NodeDedupIdentifier)}: {algorithmId}");
NodeAlgorithm = (byte)algorithmId;
}
/// <nodoc />
public NodeDedupIdentifier(byte[] hashResult, NodeAlgorithmId algorithmId)
: base(hashResult, (byte)algorithmId)
{
if (!algorithmId.IsValidNode())
{
throw new ArgumentException($"The given hash does not represent a {nameof(NodeDedupIdentifier)}");
}
}
/// <summary>
/// IsNodeAlgorithmId - determines if the given algorithm id is a valid/supported node id.
/// </summary>
/// <param name="algorithmId">The given algorithm id.</param>
/// <returns>True if valid, false otherwise.</returns>
public static bool IsValidNode(this NodeAlgorithmId algorithmId)
{
switch (algorithmId)
{
// TODO: Chunk size optimization
case NodeAlgorithmId.Node1024K:
case NodeAlgorithmId.Node64K:
return(true);
default:
throw new InvalidEnumArgumentException($"Unsupported algorithm id {algorithmId} of enum type: {nameof(NodeAlgorithmId)} encountered.");
}
}
/// <nodoc />
public static IContentHasher GetContentHasher(this NodeAlgorithmId algorithmId)
{
switch (algorithmId)
{
case NodeAlgorithmId.Node1024K:
return(Dedup1024KHashInfo.Instance.CreateContentHasher());
case NodeAlgorithmId.Node64K:
return(DedupNode64KHashInfo.Instance.CreateContentHasher());
default:
throw new InvalidEnumArgumentException($"No hasher found for unsupported {nameof(NodeAlgorithmId)} : {algorithmId}.");
}
}