|
public static Hash ( Byte data ) : |
||
| data | Byte | |
| return | ||
public T Get(string input)
{
var data = Encoding.UTF8.GetBytes(input);
var val = hash.Hash(data);
return(Get(val));
}
private int GetPartitionIndex(object partitionKey)
{
ASCIIEncoding encoding = new ASCIIEncoding();
MurmurHash2Simple hasher = new MurmurHash2Simple();
int bytes = (int)hasher.Hash(encoding.GetBytes((string)partitionKey));
int partitionIndex = Math.Abs(bytes % this.partitions.Count);
return(partitionIndex);
}
private int GetHash(string value)
{
MurmurHash2Simple simple = new MurmurHash2Simple();
if (string.IsNullOrEmpty(value))
{
throw new ArgumentNullException(nameof(value));
}
if (value.Length > _maxSize)
{
throw new ArgumentException($"Максимальная длинна ключа составляет {_maxSize} символов.", nameof(value));
}
var hash = Convert.ToInt32(simple.Hash(System.Text.Encoding.UTF8.GetBytes(value)));
return(hash);
}
/// <summary>
/// turns string into representative (murmur2) uint hash
/// </summary>
/// <param name="hash"></param>
/// <param name="dataset_column"></param>
/// <returns></returns>
public static uint get_representative_int_hash(MurmurHash2Simple hash, string dataset_column)
{
return(hash.Hash(Encoding.UTF8.GetBytes(dataset_column)));
}
private int GetPartitionIndex(object partitionKey)
{
ASCIIEncoding encoding = new ASCIIEncoding();
MurmurHash2Simple hasher = new MurmurHash2Simple();
int bytes = (int)hasher.Hash(encoding.GetBytes((string)partitionKey));
int partitionIndex = Math.Abs(bytes % this.partitions.Count);
return partitionIndex;
}
