private void AssociateMatchedFilters(string suspect)
{
var suspectTokens = suspect.Split(' ');
var expandedSuspectTokenSet = ExpandTokenSet(suspectTokens);
if (usePluralizationService)
{
expandedSuspectTokenSet = ExpandTokenSetWithPlurals(expandedSuspectTokenSet);
}
var applicableFilters = new List <FilteredKeyword>();
foreach (var token in expandedSuspectTokenSet)
{
List <FilteredKeyword> filterSubset;
var additionalFilterSubset = new List <FilteredKeyword>();
filteredKeywordTokenMap.TryGetValue(token, out filterSubset);
if (filterSubset == null)
{
continue;
}
foreach (var keyword in filterSubset)
{
var singularPluralKeyword = SingularPluralKeyword.CreateInstance(keyword.Keyword);
if (singularPluralKeyword.HasBothSingularAndPlural)
{
additionalFilterSubset.Add(singularPluralKeyword.Singular == keyword.Keyword
? new FilteredKeyword {
Keyword = singularPluralKeyword.Plural
}
: new FilteredKeyword {
Keyword = singularPluralKeyword.Singular
});
}
}
applicableFilters.AddRange(filterSubset);
applicableFilters.AddRange(additionalFilterSubset);
}
applicableFilters = applicableFilters.Distinct().ToList();
var filterKeywordPairs = applicableFilters
.Select(x => new { filter = x, keyword = Normalize(x.Keyword) });
var suspectNorm = Normalize(suspect);
var matchedFiltered = filterKeywordPairs
.FirstOrDefault(x => suspectNorm.Contains(x.keyword));
if (!associateMatchedFilteredKeywordsReturnValue.ContainsKey(suspect))
{
associateMatchedFilteredKeywordsReturnValue.Add(suspect,
matchedFiltered == null ? null : matchedFiltered.filter);
}
}
private IEnumerable <string> ExpandTokenSetWithPlurals(IEnumerable <string> suspectTokens)
{
var expandedTokenSet = new List <string>();
foreach (var suspectToken in suspectTokens)
{
var singularPluralKeyword = SingularPluralKeyword.CreateInstance(suspectToken);
if (singularPluralKeyword.HasBothSingularAndPlural)
{
expandedTokenSet.Add(singularPluralKeyword.Singular);
expandedTokenSet.Add(singularPluralKeyword.Plural);
}
expandedTokenSet.Add(singularPluralKeyword.OriginalKeyword);
}
return(expandedTokenSet);
}
