//public static string Title(Customer c)
//{
// return c.CreateTitle($"{PartTitle(c)}, {c.AccountNumber}");
//}
private static string PartTitle(Customer c)
{
return(IsStore(c) ? StoreFunctions.Title(c.Store) : PersonFunctions.Title(c.Person));
}
public FasterStore(IOptions <FasterStoreOptions> optionsProvider, IFasterEqualityComparer <TKey> keyComparer, ILogger <FasterStore <TKey, TValue> > logger)
{
_logger = logger;
var options = optionsProvider.Value;
var indexStorePath = Path.Combine(options.Directory, $"{options.Name}-index.log");
var objectStorePath = Path.Combine(options.Directory, $"{options.Name}-object.log");
_indexDevice = Devices.CreateLogDevice(indexStorePath,
preallocateFile: false, deleteOnClose: false, recoverDevice: true);
_objectDevice = Devices.CreateLogDevice(objectStorePath,
preallocateFile: false, deleteOnClose: false, recoverDevice: true);
_checkpointsPath = Path.Combine(options.Directory, "checkpoints");
if (!Directory.Exists(_checkpointsPath))
{
_logger.LogInformation("Checkpoints directory not exists. Creating...");
Directory.CreateDirectory(_checkpointsPath);
}
var logSettings = new LogSettings
{
LogDevice = _indexDevice,
ObjectLogDevice = _objectDevice,
MemorySizeBits = (int)options.MemorySize,
PageSizeBits = (int)options.PageSize,
SegmentSizeBits = (int)options.SegmentSize,
ReadCacheSettings = new ReadCacheSettings()
{
MemorySizeBits = (int)options.MemorySize + 1,
PageSizeBits = (int)options.PageSize + 1,
SecondChanceFraction = .2
}
};
_serializerSettings = new SerializerSettings <KeyHolder, ValueHolder>
{
keySerializer = () => new KeySerializer(options.JsonOptions),
valueSerializer = () => new ValueSerializer(options.JsonOptions)
};
var comparer = new KeyComparerAdapter(keyComparer);
var functions = new StoreFunctions(_logger);
var checkpointsSettings = new CheckpointSettings
{
CheckpointDir = _checkpointsPath,
CheckPointType = CheckpointType.Snapshot
};
_keyValueStore = new FasterKV <KeyHolder, ValueHolder, ValueHolder, ValueHolder, StoreContext, StoreFunctions>(
StoreSize, functions, logSettings, checkpointsSettings, _serializerSettings, comparer);
var checkpoints = Directory.GetDirectories(_checkpointsPath).Length;
if (checkpoints > 0)
{
_logger.LogInformation($"Found {checkpoints} checkpoints. Recovering store...");
_keyValueStore.Recover();
_logger.LogInformation("Store recovered from checkpoints");
}
_session = _keyValueStore.NewSession();
}
