/// <summary>
///
/// </summary>
/// <param name="mapId"></param>
/// <returns>Beatmap object with data, or null on not found</returns>
public Beatmap GetBeatmap(int mapId)
{
lock (_sqlConnector)
{
return(_sqlConnector.GetBeatmap(mapId));
}
}
/// <summary>
/// Used for inserting beatmaps/invoking a large number of (no result)queries at once instead of one-by-one with is way slower.
/// </summary>
public void StartMassStoring()
{
if (_sqlConnector.MassInsertIsActive)
{
return;
}
lock (_sqlConnector)
{
string sql = "SELECT Md5, MapId, BeatmapChecksum FROM (SELECT Md5, MapId, BeatmapChecksum FROM `withID` UNION SELECT Md5, MapId, BeatmapChecksum FROM `withoutID`)";
SQLiteDataReader reader;
try
{
reader = _sqlConnector.Query(sql);
}
catch (SQLiteException e)
{
if (e.ResultCode == SQLiteErrorCode.Corrupt)
{
_sqlConnector.ResetDatabase();
StartMassStoring();
return;
}
throw;
}
_beatmapChecksums = new Dictionary <string, MapIdMd5Pair>();
while (reader.Read())
{
var hash = reader.GetString(0);
var mapId = reader.GetInt32(1);
var checksum = reader.GetString(2);
if (_beatmapChecksums.ContainsKey(checksum))
{
//REALLY..? I don't think so.
var map1 = _sqlConnector.GetBeatmap(hash);
var map2 = _sqlConnector.GetBeatmap(_beatmapChecksums[checksum].Md5);
var map1Checksum = map1.GetChecksum();
var map2Checksum = map2.GetChecksum();
if (map1Checksum == map2Checksum)
{
//:( fair enough
var ex = new SQLiteException(SQLiteErrorCode.Constraint, "uh, oh... beatmap checksum collision");
ex.Data.Add("mapId1", map1.MapId);
ex.Data.Add("hash1", map1.Md5);
ex.Data.Add("mapId2", map2.MapId);
ex.Data.Add("hash2", map2.Md5);
ex.Data.Add("checksum", map1Checksum);
throw ex;
}
_beatmapChecksums.Remove(map1Checksum);
_beatmapChecksums.Remove(map2Checksum);
_beatmapChecksums.Add(map1Checksum, new MapIdMd5Pair(map1.MapId, map1.Md5));
_beatmapChecksums.Add(map2Checksum, new MapIdMd5Pair(map2.MapId, map2.Md5));
}
else
{
_beatmapChecksums.Add(checksum, new MapIdMd5Pair(mapId, hash));
}
}
reader.Dispose();
_sqlConnector.StartMassStoring();
}
}