Banshee.Collection.Database.DatabaseImportManager.ImportTrack C# (CSharp) Method

        public DatabaseTrackInfo ImportTrack (SafeUri uri)
        {
            if (!IsWhiteListedFile (uri.AbsoluteUri)) {
                return null;
            }

            if (DatabaseTrackInfo.ContainsUri (uri, PrimarySourceIds)) {
                // TODO add DatabaseTrackInfo.SyncedStamp property, and if the file has been
                // updated since the last sync, fetch its metadata into the db.
                return null;
            }

            DatabaseTrackInfo track = new DatabaseTrackInfo () { Uri = uri };
            using (var file = StreamTagger.ProcessUri (uri)) {
                StreamTagger.TrackInfoMerge (track, file, false, true);
            }

            track.Uri = uri;

            if (FindOutdatedDupe (track)) {
                return null;
            }

            track.PrimarySource = trackPrimarySourceChooser (track);

            // TODO note, there is deadlock potential here b/c of locking of shared commands and blocking
            // because of transactions.  Needs to be fixed in HyenaDatabaseConnection.
            ServiceManager.DbConnection.BeginTransaction ();
            try {
                bool save_track = true;
                if (track.PrimarySource is Banshee.Library.LibrarySource) {
                    save_track = track.CopyToLibraryIfAppropriate (force_copy);
                }

                if (save_track) {
                    track.Save (false);
                }

                ServiceManager.DbConnection.CommitTransaction ();
            } catch (Exception) {
                ServiceManager.DbConnection.RollbackTransaction ();
                throw;
            }

            counts[track.PrimarySourceId] = counts.ContainsKey (track.PrimarySourceId) ? counts[track.PrimarySourceId] + 1 : 1;

            // Reload every 20% or every 250 tracks, whatever is more (eg at most reload 5 times during an import)
            if (counts[track.PrimarySourceId] >= Math.Max (TotalCount/5, 250)) {
                counts[track.PrimarySourceId] = 0;
                track.PrimarySource.NotifyTracksAdded ();
            }

            return track;
        }