private void LoadWriteActions(string filename, bool apply)
{
Log4NetHelper.Instance.LogDebugMessage(string.Format("OdbTransaction: Load write actions of {0}", filename));
CheckFileAccess(filename);
_fsi.SetReadPosition(0);
_isCommited = _fsi.ReadByte() == 1;
_creationDateTime = _fsi.ReadLong();
var totalNumberOfWriteActions = _fsi.ReadLong();
Log4NetHelper.Instance.LogInfoMessage(string.Concat("OdbTransaction: ", _writeActions.Count.ToString(), " write actions in file"));
for (var i = 0; i < totalNumberOfWriteActions; i++)
{
var defaultWriteAction = WriteAction.Read(_fsi);
if (apply)
{
defaultWriteAction.ApplyTo(_fsiToApplyWriteActions);
defaultWriteAction.Clear();
}
else
{
AddWriteAction(defaultWriteAction, false);
}
}
if (apply)
{
_fsiToApplyWriteActions.Flush();
}
}
private void LoadWriteActions(string filename, bool apply)
{
if (OdbConfiguration.IsLoggingEnabled())
{
DLogger.Debug(string.Format("OdbTransaction: Load write actions of {0}", filename));
}
CheckFileAccess(filename);
_fsi.SetReadPosition(0);
_isCommited = _fsi.ReadByte() == 1;
_creationDateTime = _fsi.ReadLong();
var totalNumberOfWriteActions = _fsi.ReadLong();
if (OdbConfiguration.IsLoggingEnabled())
{
DLogger.Info(string.Concat("OdbTransaction: ", _writeActions.Count.ToString(), " write actions in file"));
}
for (var i = 0; i < totalNumberOfWriteActions; i++)
{
var defaultWriteAction = WriteAction.Read(_fsi);
if (apply)
{
defaultWriteAction.ApplyTo(_fsiToApplyWriteActions);
defaultWriteAction.Clear();
}
else
{
AddWriteAction(defaultWriteAction, false);
}
}
if (apply)
{
_fsiToApplyWriteActions.Flush();
}
}
internal static WriteAction Read(IFileSystemInterface fsi)
{
try
{
var position = fsi.ReadLong();
var size = fsi.ReadInt();
var bytes = fsi.ReadBytes(size);
var writeAction = new WriteAction(position, bytes);
Log4NetHelper.Instance.LogDebugMessage(string.Format("Transaction WriteAction: Loading Write Action at {0} => {1}", fsi.GetPosition(), writeAction));
return(writeAction);
}
catch (OdbRuntimeException)
{
Log4NetHelper.Instance.LogErrorMessage(string.Format("Transaction WriteAction: error reading write action at position {0}", fsi.GetPosition()));
throw;
}
}
internal static WriteAction Read(IFileSystemInterface fsi)
{
try
{
var position = fsi.ReadLong();
var size = fsi.ReadInt();
var bytes = fsi.ReadBytes(size);
var writeAction = new WriteAction(position, bytes);
if (OdbConfiguration.IsLoggingEnabled())
{
DLogger.Debug(string.Format("Transaction WriteAction: Loading Write Action at {0} => {1}", fsi.GetPosition(), writeAction));
}
return(writeAction);
}
catch (OdbRuntimeException)
{
DLogger.Error(string.Format("Transaction WriteAction: error reading write action at position {0}", fsi.GetPosition()));
throw;
}
}
public void ReadDatabaseHeader()
{
var version = ReadDatabaseVersion();
StorageEngineConstant.CheckDbVersionCompatibility(version);
var databaseIdsArray = new long[4];
databaseIdsArray[0] = _fsi.ReadLong();
databaseIdsArray[1] = _fsi.ReadLong();
databaseIdsArray[2] = _fsi.ReadLong();
databaseIdsArray[3] = _fsi.ReadLong();
IDatabaseId databaseId = new DatabaseId(databaseIdsArray);
var nbClasses = ReadNumberOfClasses();
var firstClassPosition = ReadFirstClassOid();
if (nbClasses < 0)
{
throw new CorruptedDatabaseException(
NDatabaseError.NegativeClassNumberInHeader.AddParameter(nbClasses).AddParameter(firstClassPosition));
}
ReadLastOdbCloseStatus();
ReadDatabaseCharacterEncoding();
var currentBlockPosition = _fsi.ReadLong();
// Gets the current id block number
_fsi.SetReadPosition(currentBlockPosition + StorageEngineConstant.BlockIdOffsetForBlockNumber);
var currentBlockIdNumber = _fsi.ReadInt();
var blockMaxId = OIDFactory.BuildObjectOID(_fsi.ReadLong());
_storageEngine.SetDatabaseId(databaseId);
var currentBlockInfo = new CurrentIdBlockInfo
{
CurrentIdBlockPosition = currentBlockPosition,
CurrentIdBlockNumber = currentBlockIdNumber,
CurrentIdBlockMaxOid = blockMaxId
};
_storageEngine.SetCurrentIdBlockInfos(currentBlockInfo);
}
internal static WriteAction Read(IFileSystemInterface fsi)
{
try
{
var position = fsi.ReadLong();
var size = fsi.ReadInt();
var bytes = fsi.ReadBytes(size);
var writeAction = new WriteAction(position, bytes);
if (OdbConfiguration.IsLoggingEnabled())
DLogger.Debug(string.Format("Transaction WriteAction: Loading Write Action at {0} => {1}", fsi.GetPosition(), writeAction));
return writeAction;
}
catch (OdbRuntimeException)
{
DLogger.Error(string.Format("Transaction WriteAction: error reading write action at position {0}", fsi.GetPosition()));
throw;
}
}
