// ============================= ADDITIONAL METHODS ====================================
// This is a typical search on a Lucene's index file.
private static void Search(string searchTerm, Lucene.Net.Search.IndexSearcher searcher, QueryParser parser, Directory indexDirectory, int totalDocuments)
{
// Supply conditions
Query query = parser.Parse(searchTerm);
// Will store the results (hits).
TopScoreDocCollector collector = TopScoreDocCollector.Create(totalDocuments, true);
searcher.Search(query, collector);
ScoreDoc[] hits = collector.TopDocs().ScoreDocs;
int counter = 0;
// printing out the results
foreach (ScoreDoc item in hits)
{
int docID = item.Doc;
Document d = searcher.Doc(docID);
// Call DisplayMessage(d); to display the message.
DisplayMessage(d, searchTerm);
counter++;
}
if (counter != 0)
{
Console.WriteLine("Found {0} messages that match your search term.", counter);
}
else
{
Console.WriteLine("There were no results matching your search request.\nSorry :(");
}
Console.WriteLine("==============================");
}