//public void ReadFileFromTape(BackupFile objBackupFile)
//{
// TapeOperator objTapeOperator;
// FileStream objFileStream;
// byte[] objReadBytes;
// Console.WriteLine("ReadFileFromTape Method");
// Console.WriteLine("Initializing the tape drive...");
// objTapeOperator = new TapeOperator();
// objTapeOperator.Load(TapeName);
// Console.WriteLine("I'm Setting the tape position...");
// objTapeOperator.SetTapePosition(objBackupFile.StartTapeLocation);
// Console.WriteLine("Tape Position is " + objTapeOperator.GetTapePosition());
// Console.WriteLine("Creating the file on disk...");
// objFileStream = new FileStream(objBackupFile.NewFileNameAndPath, FileMode.OpenOrCreate, FileAccess.Write);
// if (objBackupFile.isLargeFile)
// {
// Console.WriteLine("This file will take " + objBackupFile.FileChunkCount + " Passes to read...");
// for (int intCounter = 1; intCounter <= objBackupFile.FileChunkCount; intCounter++)
// {
// if (intCounter < objBackupFile.FileChunkCount)
// {
// Console.WriteLine("This is pass " + intCounter);
// Console.WriteLine("Now I'm Reading file from tape into memory...");
// objReadBytes = objTapeOperator.Read(objTapeOperator.GetTapePosition(), BackupFile.MaxMemoryChunk);
// //objReadBytes = objTapeOperator.Read(objBackupFile.StartTapeLocation * intCounter, BackUpFile.MaxMemoryChunk);
// Console.WriteLine("Now I'm Writing file to disk...");
// objFileStream.Write(objReadBytes, 0, objReadBytes.Length);
// }
// else
// {
// Console.WriteLine("This is pass " + intCounter);
// Console.WriteLine("Now I'm Reading file from tape into memory...");
// objReadBytes = objTapeOperator.Read(objTapeOperator.GetTapePosition(), (int)(objBackupFile.Size - BackupFile.MaxMemoryChunk * (intCounter - 1)));
// Console.WriteLine("Now I'm Writing file to disk...");
// objFileStream.Write(objReadBytes, 0, objReadBytes.Length);
// }
// }
// }
// else
// {
// Console.WriteLine("Now I'm Reading file from tape into memory...");
// objReadBytes = objTapeOperator.Read(objBackupFile.StartTapeLocation, objBackupFile.Size);
// Console.WriteLine("Now I'm Writing file to disk...");
// objFileStream.Write(objReadBytes, 0, objReadBytes.Length);
// }
// Console.WriteLine("Tape Position is " + objTapeOperator.GetTapePosition());
// Console.WriteLine("Now I'm Cleaning up resources...");
// objFileStream.Close();
// objTapeOperator.Close();
// Console.WriteLine("Now I'm Done!");
// Console.WriteLine();
//}
public void ReadFilesFromTape(BackupFiles objBackupFiles)
{
Console.WriteLine("ReadFilesFromTape Method");
Console.WriteLine("Initializing the tape drive...");
TapeOperator = new TapeOperator();
TapeOperator.Load(TapeName);
foreach (BackupFile objBackupFile in objBackupFiles)
{
Console.WriteLine("I'm Setting the tape position...");
TapeOperator.SetTapePosition(objBackupFile.StartTapeLocation);
Console.WriteLine("Tape Position is " + TapeOperator.GetTapePosition());
Console.WriteLine("Creating the file on disk...");
FileStreamToWrite = new FileStream(objBackupFile.NewFileNameAndPath, FileMode.OpenOrCreate, FileAccess.Write);
if (objBackupFile.isLargeFile)
{
Console.WriteLine("This file will take " + objBackupFile.FileChunkCount + " Passes to read...");
for (int intCounter = 1; intCounter <= objBackupFile.FileChunkCount; intCounter++)
{
if (intCounter < objBackupFile.FileChunkCount)
{
ReadBytes = null;//clears the memory...
GC.Collect();
Console.WriteLine("This is pass " + intCounter);
Console.WriteLine("Now I'm Reading file from tape into memory...");
ReadBytes = TapeOperator.Read(TapeOperator.GetTapePosition(), BackupFile.MaxMemoryChunk);
//objReadBytes = objTapeOperator.Read(objBackupFile.StartTapeLocation * intCounter, BackUpFile.MaxMemoryChunk);
Console.WriteLine("Now I'm Writing file to disk...");
FileStreamToWrite.Write(ReadBytes, 0, ReadBytes.Length);
}
else
{
ReadBytes = null;//clears the memory...
GC.Collect();
Console.WriteLine("This is pass " + intCounter);
Console.WriteLine("Now I'm Reading file from tape into memory...");
ReadBytes = TapeOperator.Read(TapeOperator.GetTapePosition(), (int)(objBackupFile.Size - BackupFile.MaxMemoryChunk * (intCounter - 1)));
Console.WriteLine("Now I'm Writing file to disk...");
FileStreamToWrite.Write(ReadBytes, 0, ReadBytes.Length);
}
}
}
else
{
ReadBytes = null;//clears the memory...
GC.Collect();
Console.WriteLine("Now I'm Reading file from tape into memory...");
ReadBytes = TapeOperator.Read(objBackupFile.StartTapeLocation, objBackupFile.Size);
Console.WriteLine("Now I'm Writing file to disk...");
FileStreamToWrite.Write(ReadBytes, 0, ReadBytes.Length);
}
Console.WriteLine("Tape Position is " + TapeOperator.GetTapePosition());
}
Console.WriteLine("Now I'm Cleaning up resources...");
FileStreamToWrite.Close();
TapeOperator.Close();
Console.WriteLine("Now I'm Done!");
Console.WriteLine();
}