public static List<QueryResult> SearchFreeTextQuery(string catalog, CultureInfo culture, string query, uint topNbyRank)
{
readerLock.AcquireReaderLock(1000 * 60); // 60 second timeout
TextIndex index = GetTextIndex(catalog, culture);
// Get all of the words (front match)
List<Word> queryWordsList = index.WordBreaker.BreakWords(query);
Dictionary<Synonym, List<WordRef>> results = new Dictionary<Synonym, List<WordRef>>();
List<Synonym> words = index.Thesaurus.Suggest(queryWordsList);
WordRefEqualityComparer comp = new WordRefEqualityComparer();
foreach (Synonym word in words) {
List<WordRef> res = index.FrontMatch(word.OriginalWord);
// Synonyms
foreach (string syn in word.SuggestedWords) {
if (syn == word.OriginalWord)
continue;
List<Word> synBreaker = index.WordBreaker.BreakWords(syn);
List<WordRef> SubResults = new List<WordRef>();
bool FirstLoop = true;
foreach (Word w in synBreaker) {
// maybe intersect the results here?
List<WordRef> lookup = index.FindWord(w.WordText);
if (lookup != null) {
if (FirstLoop) {
SubResults.AddRange(lookup);
FirstLoop = false;
} else
SubResults = SubResults.Intersect(lookup, comp).ToList();
}
}
// Add the matchie words
if ( SubResults != null )
res.AddRange(SubResults);
}
results.Add(word, res);
}
readerLock.ReleaseReaderLock();
// Intersect results
// intersect the results
List<int> resultList = new List<int>();
bool firstTime = true;
foreach (List<WordRef> wrfs in results.Values) {
if (firstTime) {
resultList = wrfs.Select(n => n.Key).ToList();
firstTime = false;
continue;
}
//resultList = resultList.Intersect(wrfs, comp).ToList();
resultList = resultList.Intersect(wrfs.Select( n => n.Key )).ToList();
}
SortedList<int, QueryResult> queryResults = PivitQuery(results, resultList);
// Rank the results!
return RankResults(query, words, queryResults);
}
public static List<QueryResult> SearchTextQuery(string catalog, CultureInfo culture, string query)
{
readerLock.AcquireReaderLock(1000 * 60); // 60 second timeout
TextIndex index = GetTextIndex(catalog, culture);
// Get all of the words (front match)
List<Word> queryWordsList = index.WordBreaker.BreakWords(query);
List<Synonym> wordList = queryWordsList.Select(n => new Synonym() { OriginalWord = n.WordText }).ToList();
Dictionary<Synonym, List<WordRef>> results = new Dictionary<Synonym, List<WordRef>>();
foreach (Synonym word in wordList) {
List<WordRef> res = index.FindWord(word.OriginalWord);
results.Add(word, res);
}
readerLock.ReleaseReaderLock();
// intersect the results -- what word ref's contain all phrases searched for
List<int> resultList = new List<int>();
WordRefEqualityComparer comp = new WordRefEqualityComparer();
bool firstTime = true;
foreach (List<WordRef> wrfs in results.Values) {
if (firstTime) {
resultList = wrfs.Select(n => n.Key).ToList();
firstTime = false;
continue;
}
resultList = resultList.Intersect(wrfs.Select(n => n.Key)).ToList();
}
SortedList<int, QueryResult> queryResult = PivitQuery(results, resultList);
return RankResults(query, wordList, queryResult);
}
