/// <summary>
/// Convert full data to serializable data.
/// </summary>
/// <typeparam name="TId"></typeparam>
/// <typeparam name="TCount"></typeparam>
/// <param name="estimatorData"></param>
/// <returns></returns>
internal static IHybridEstimatorData <TId, TCount> ToEstimatorData <TId, TCount>(
this HybridEstimatorFullData <TId, TCount> estimatorData)
where TCount : struct
where TId : struct
{
if (estimatorData == null)
{
return(null);
}
return(new HybridEstimatorData <TId, TCount>
{
ItemCount = estimatorData.ItemCount,
StrataEstimator = estimatorData.StrataEstimator,
BitMinwiseEstimator = estimatorData.BitMinwiseEstimator == null ?
null :
new BitMinwiseHashEstimatorData
{
BitSize = estimatorData.BitMinwiseEstimator.BitSize,
Capacity = estimatorData.BitMinwiseEstimator.Capacity,
HashCount = estimatorData.BitMinwiseEstimator.HashCount,
ItemCount = estimatorData.BitMinwiseEstimator.ItemCount,
Values = estimatorData.BitMinwiseEstimator.Values.ConvertToBitArray(estimatorData.BitMinwiseEstimator.BitSize).ToBytes()
}
});
}
/// <summary>
/// Intersect two hybrid estimators
/// </summary>
/// <typeparam name="TEntity"></typeparam>
/// <typeparam name="TId"></typeparam>
/// <typeparam name="TCount"></typeparam>
/// <param name="estimatorData"></param>
/// <param name="configuration"></param>
/// <returns></returns>
internal static IHybridEstimatorFullData <int, TCount> Intersect <TEntity, TId, TCount>(
this IHybridEstimatorFullData <int, TCount> estimatorData,
IInvertibleBloomFilterConfiguration <TEntity, TId, int, TCount> configuration,
IHybridEstimatorFullData <int, TCount> otherEstimatorData)
where TId : struct
where TCount : struct
{
if (estimatorData == null && otherEstimatorData == null)
{
return(null);
}
var res = new HybridEstimatorFullData <int, TCount>();
res.BitMinwiseEstimator = estimatorData?.BitMinwiseEstimator.Intersect(otherEstimatorData?.BitMinwiseEstimator, configuration.FoldingStrategy);
res.StrataEstimator = estimatorData?.StrataEstimator.Intersect(otherEstimatorData?.StrataEstimator, configuration);
res.ItemCount = (res.BitMinwiseEstimator?.ItemCount ?? 0L) + (res.StrataEstimator?.ItemCount ?? 0L);
return(res);
}
