private IEnumerable <SubFingerprintData> ReadSubFingerprints(int[] hashes, int thresholdVotes,
IDictionary <string, string> yesMetaFieldsFilters,
IDictionary <string, string> noMetaFieldsFilters,
ReadOnlyTransaction tx)
{
var subFingeprintIds = GetSubFingerprintMatches(hashes, thresholdVotes, tx);
var subFingerprints = subFingeprintIds.Select(tx.GetSubFingerprint);
if (yesMetaFieldsFilters.Count > 0 || noMetaFieldsFilters.Count > 0)
{
return(subFingerprints
.GroupBy(subFingerprint => subFingerprint.TrackReference)
.Where(group =>
{
var trackData = tx.GetTrackByReference(group.Key);
var result = metaFieldsFilter.PassesFilters(trackData.MetaFields, yesMetaFieldsFilters, noMetaFieldsFilters);
return result;
})
.SelectMany(x => x.ToList())
.Select(e => e.ToSubFingerprintData()));
}
return(subFingerprints
.Select(e => e.ToSubFingerprintData()));
}
private IEnumerable <SubFingerprintData> ReadSubFingerprints(int[] hashes, int thresholdVotes,
IDictionary <string, string> metaFieldsFilter,
ReadOnlyTransaction tx)
{
var subFingeprintIds = GetSubFingerprintMatches(hashes, thresholdVotes, tx);
var subFingerprints = subFingeprintIds.Select(tx.GetSubFingerprint);
if (metaFieldsFilter.Count > 0)
{
return(subFingerprints
.GroupBy(subFingerprint => subFingerprint.TrackReference)
.Where(group =>
{
var trackData = tx.GetTrackByReference(group.Key);
return trackData.MetaFields
.Join(metaFieldsFilter, x => x.Key, x => x.Key, (a, b) => a.Value.Equals(b.Value))
.Any(x => x);
})
.SelectMany(x => x.ToList())
.Select(e => e.ToSubFingerprintData()));
}
return(subFingerprints
.Select(e => e.ToSubFingerprintData()));
}
