public static SearchIndex <TType> Build <TType>(IEnumerable <TType> source, SearchIndexOptions <TType> options)
{
if (!options.Properties.Any())
{
throw new Exception($"No properties specified to index");
}
var wordFrequency = new Dictionary <string, int>();
var index = new SearchIndex <TType>
{
Options = options,
Source = source.Select(c => IndexItem(c, options, wordFrequency)).ToList()
};
// Index the top 1% of common words to give low scores too
var possibleCommonWords = wordFrequency.Where(w => w.Value > 2);
index.CommonWords = possibleCommonWords.OrderByDescending(c => c.Value).Take(possibleCommonWords.Count() / 100).Select(w => w.Key).ToArray();
return(index);
}
public static SearchIndex <TType> ReBuild <TType>(SearchIndex <TType> original, ObservableCollection <TType> source, SearchIndexOptions <TType> options)
{
return(original);
}
