/// <summary>
/// Create new Bloom filter data based upon the size and the hash function count.
/// </summary>
/// <typeparam name="TId">Type of the identifier</typeparam>
/// <typeparam name="TCount">Type of the counter</typeparam>
/// <typeparam name="TEntity"></typeparam>
/// <param name="capacity"></param>
/// <param name="m">Size per hash function</param>
/// <param name="k">The number of hash functions.</param>
/// <returns>The Bloom filter data</returns>
public InvertibleBloomFilterData <TId, THash, TCount> Create <TEntity, TId, THash, TCount>(
IInvertibleBloomFilterConfiguration <TEntity, TId, THash, TCount> configuration,
long capacity,
long m,
uint k)
where TId : struct
where TCount : struct
where THash : struct
{
if (m < 1) // from overflow in bestM calculation
{
throw new ArgumentOutOfRangeException(
nameof(m),
"The provided capacity and errorRate values would result in an array of length > long.MaxValue. Please reduce either the capacity or the error rate.");
}
var res = new InvertibleBloomFilterData <TId, THash, TCount>
{
HashFunctionCount = k,
BlockSize = m,
Counts = new TCount[m],
Capacity = capacity,
ErrorRate = configuration.ActualErrorRate(m, capacity, k)
};
res.SyncCompressionProviders(configuration);
return(res);
}
