/// <summary>
/// Initializes a new persistent audit trail.
/// </summary>
/// <param name="path">The path to the folder to be used by audit trail.</param>
/// <param name="recordsPerPartition">The maximum number of log entries that can be stored in the single file called partition.</param>
/// <param name="configuration">The configuration of the persistent audit trail.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="recordsPerPartition"/> is less than 2.</exception>
public PersistentState(DirectoryInfo path, int recordsPerPartition, Options?configuration = null)
{
if (configuration is null)
{
configuration = new Options();
}
if (recordsPerPartition < 2L)
{
throw new ArgumentOutOfRangeException(nameof(recordsPerPartition));
}
if (!path.Exists)
{
path.Create();
}
backupCompression = configuration.BackupCompression;
replayOnInitialize = configuration.ReplayOnInitialize;
bufferSize = configuration.BufferSize;
location = path;
this.recordsPerPartition = recordsPerPartition;
initialSize = configuration.InitialPartitionSize;
commitEvent = new AsyncManualResetEvent(false);
sessionManager = new DataAccessSessionManager(configuration.MaxConcurrentReads, configuration.GetMemoryAllocator <byte>(), bufferSize);
syncRoot = new AsyncSharedLock(sessionManager.Capacity);
entryPool = configuration.GetMemoryAllocator <LogEntry>();
metadataPool = configuration.UseCaching ? configuration.GetMemoryAllocator <LogEntryMetadata>() : null;
nullSegment = new StreamSegment(Stream.Null);
initialEntry = new LogEntry(nullSegment, sessionManager.WriteSession.Buffer, new LogEntryMetadata());
// sorted dictionary to improve performance of log compaction and snapshot installation procedures
partitionTable = new SortedDictionary <long, Partition>();
// load all partitions from file system
foreach (var file in path.EnumerateFiles())
{
if (long.TryParse(file.Name, out var partitionNumber))
{
var partition = new Partition(file.Directory, bufferSize, recordsPerPartition, partitionNumber, metadataPool, sessionManager.Capacity);
partition.PopulateCache(sessionManager.WriteSession);
partitionTable[partitionNumber] = partition;
}
}
state = new NodeState(path, AsyncLock.Exclusive(syncRoot));
snapshot = new Snapshot(path, bufferSize, sessionManager.Capacity);
snapshot.PopulateCache(sessionManager.WriteSession);
}
public PremioPortabilidadeDao(DataAccessSessionManager session) : base(session) { }
public PremioDesapropriadoDao(DataAccessSessionManager session) : base(session)
{
}
public Coberturas(DataAccessSessionManager session)
: base(session)
{
}
public Eventos(DataAccessSessionManager session)
: base(session)
{
}
public MovimentosProvisao(DataAccessSessionManager session) : base(session)
{
}
public Premios(DataAccessSessionManager session) : base(session)
{
}
public ProvisaoCobertura(DataAccessSessionManager session)
: base(session)
{
}
public HistoricoCobertura(DataAccessSessionManager session)
: base(session)
{
}
public PremioAporteDao(DataAccessSessionManager session) : base(session)
{
}
public CoberturaContratadaHelper(DataAccessSessionManager session)
: base(session)
{
}
protected PersistenceBase(DataAccessSessionManager session)
{
Session = session;
}
