public IEnumerable <IDictionary <string, string> > Search(string q)
{
q = q.ToLower();
// by default, results will not include dropped objects, but you can add dropped:? to over-ride this
if (!q.Contains("dropped:"))
{
q = string.Format("({0}) -dropped:true", q);
}
var query = _parser.Parse(q);
var topFieldCollector = TopFieldCollector.Create(
sort: Sort.RELEVANCE,
numHits: _resultsLimit,
fillFields: false,
trackDocScores: true,
trackMaxScore: false,
docsScoredInOrder: false
);
_searcher.Search(query, topFieldCollector);
var topDocs = topFieldCollector.TopDocs();
if (topDocs == null)
{
return(Enumerable.Repeat(new Dictionary <string, string>(), 0));
}
var results = topDocs.ScoreDocs.Select(hit => Docs.DocToDict(_searcher.Doc(hit.Doc), hit.Score)).ToArray();
_logger.Debug("Search of '{0}' return {1} results.", q, results.Count());
return(results);
}
public IEnumerable <IDictionary <string, string> > Search(string q)
{
var query = _parser.Parse(q);
var topFieldCollector = TopFieldCollector.Create(
sort: Sort.RELEVANCE,
numHits: 1000,
fillFields: false,
trackDocScores: true,
trackMaxScore: false,
docsScoredInOrder: false
);
_searcher.Search(query, topFieldCollector);
var topDocs = topFieldCollector.TopDocs();
if (topDocs == null)
{
return(new List <IDictionary <string, string> >());
}
var missingIndices = topDocs.ScoreDocs.Select(hit => Docs.DocToDict(_searcher.Doc(hit.Doc), hit.Score)).ToArray();
_logger.Debug("Search of '{0}' return {1} results.", q, missingIndices.Count());
return(missingIndices.OrderByDescending(dict => dict["score"]).ThenByDescending(dict => dict["rank"]).Take(_resultsLimit));
}
public IEnumerable <IDictionary <string, string> > ReadHighScores(int limit)
{
var results = new List <IDictionary <string, string> >();
if (_directory != null)
{
try {
var reader = IndexReader.Open(_directory, true);
var numDocs = reader.NumDocs();
for (var i = 0; i < numDocs; i++)
{
if (reader.IsDeleted(i))
{
continue;
}
results.Add(Docs.DocToDict(reader.Document(i)));
}
_logger.Debug("Closing");
reader.Dispose();
}
catch (Exception) {
_logger.Info("Attempted to read empty search index.");
}
}
_logger.Info("Found {0}.", results.Count);
return(results.OrderByDescending(dict => dict["score"]).Take(limit));
}
public IDictionary <string, string> Find(string id)
{
var keywordAnalyzer = new KeywordAnalyzer();
var parser = new QueryParser(Version.LUCENE_30, "id", keywordAnalyzer);
var query = parser.Parse(id);
var scoreDocs = _searcher.Search(query, 1).ScoreDocs;
if (scoreDocs != null && scoreDocs.Length > 0)
{
return(Docs.DocToDict(_searcher.Doc(scoreDocs[0].Doc), 1f));
}
return(null);
}