private async Task <IList <T> > FetchResults()
{
IList <T> results = await searchResultProvider.FetchAll();
foreach (T result in results)
{
if (result.GetMetadata <ResultMetadata>(Algorithm) == null)
{
ResultMetadata resultMetadata = ParseResult(result);
result.AddMetadata(Algorithm, resultMetadata);
}
}
return(results);
}
public async Task <IList <T> > Search(string searchTerm, int maxResults, bool asYouType)
{
await EnsureInitialized();
IList <SearchWord> searchPhrase = ParseSearchPhrase(searchTerm, asYouType);
var ranks = new Dictionary <T, Rank>();
foreach (T result in await FetchResults())
{
ResultMetadata resultMetadata = result.GetMetadata <ResultMetadata>(Algorithm);
Rank rank = Match(searchPhrase, resultMetadata.ResultTerms);
ranks.Add(result, rank);
}
return(ranks
.Where(r => r.Value.Confidence >= ConfidenceThreshold)
.OrderByDescending(r => r.Value.Relevance)
.Take(maxResults)
.Select(r => r.Key)
.ToList());
}