public override void GoToPosition(long position)
{
try
{
if (position < 0)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.NegativePosition
.AddParameter(position));
}
fileWriter.Seek(position);
}
catch (System.IO.IOException e)
{
long l = -1;
try
{
l = fileWriter.Length();
}
catch (System.IO.IOException)
{
}
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.GoToPosition
.AddParameter(position).AddParameter(l), e);
}
}
private void Init(string fileName, bool canWrite)
{
string dataDirectory = NeoDatis.Tool.Wrappers.OdbSystem.GetProperty("data.directory"
);
if (dataDirectory != null)
{
wholeFileName = dataDirectory + "/" + fileName;
}
else
{
wholeFileName = fileName;
}
try
{
if (NeoDatis.Odb.OdbConfiguration.IsDebugEnabled(LogId))
{
NeoDatis.Tool.DLogger.Info("Opening datatbase file : " + new NeoDatis.Tool.Wrappers.IO.OdbFile
(wholeFileName).GetFullPath());
}
fileWriter = BuildFileWriter(canWrite);
SetIoDeviceLength(fileWriter.Length());
}
catch (System.Exception e)
{
//fixme
new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.InternalError
, e);
}
if (canWrite)
{
try
{
fileWriter.LockFile();
}
catch (System.Exception)
{
// The file region is already locked
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbFileIsLockedByCurrentVirtualMachine
.AddParameter(wholeFileName).AddParameter(NeoDatis.Tool.Wrappers.OdbThread.GetCurrentThreadName
()).AddParameter(NeoDatis.Odb.OdbConfiguration.IsMultiThread().ToString()));
}
if (!fileWriter.IsLocked())
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbFileIsLockedByExternalProgram
.AddParameter(wholeFileName).AddParameter(NeoDatis.Tool.Wrappers.OdbThread.GetCurrentThreadName
()).AddParameter(NeoDatis.Odb.OdbConfiguration.IsMultiThread().ToString()));
}
}
}
private void Init(string fileName, bool canWrite)
{
string dataDirectory = NeoDatis.Tool.Wrappers.OdbSystem.GetProperty("data.directory"
);
if (dataDirectory != null)
{
wholeFileName = dataDirectory + "/" + fileName;
}
else
{
wholeFileName = fileName;
}
try
{
if (NeoDatis.Odb.OdbConfiguration.IsDebugEnabled(LogId))
{
NeoDatis.Tool.DLogger.Info("Opening datatbase file : " + new NeoDatis.Tool.Wrappers.IO.OdbFile
(wholeFileName).GetFullPath());
}
fileWriter = BuildFileWriter(canWrite);
SetIoDeviceLength(fileWriter.Length());
}
catch (System.Exception e)
{
//fixme
new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.InternalError
, e);
}
if (canWrite)
{
try
{
fileWriter.LockFile();
}
catch (System.Exception)
{
// The file region is already locked
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbFileIsLockedByCurrentVirtualMachine
.AddParameter(wholeFileName).AddParameter(NeoDatis.Tool.Wrappers.OdbThread.GetCurrentThreadName
()).AddParameter(NeoDatis.Odb.OdbConfiguration.IsMultiThread().ToString()));
}
if (!fileWriter.IsLocked())
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbFileIsLockedByExternalProgram
.AddParameter(wholeFileName).AddParameter(NeoDatis.Tool.Wrappers.OdbThread.GetCurrentThreadName
()).AddParameter(NeoDatis.Odb.OdbConfiguration.IsMultiThread().ToString()));
}
}
}
