//Main search method, does preprocessing of special and recommendation queries
//in the case of special and regular queries, they're sent to the Lucene Service for search and retrieval
//in the case of recommendation queries, they're sent to the method that handles the Last.FM API
private void Search(string query)
{
IEnumerable <Result> songs, artists, albums, genres;
bool recommendationQuery = false;
songs = artists = albums = genres = null;
query = query.Trim();
//empty query will show all documents
//todo: check if we should show songs since they're so many
if (query == "")
{
query = "*:*";
}
//special query
if (query.Contains("!songs"))
{
query = processSpecialQuery(query);
}
//only works for artists
else if (query.Contains("!similarto"))
{
artists = processRecommendationQuery(query);
recommendationQuery = true;
}
if (!recommendationQuery)
{
lucene.Search(query, ref songs, ref artists, ref albums, ref genres);
}
DisplayResults(songs, artists, albums, genres);
}
