//public void WriteFileToTape(BackupFile objBackupFile)
//{
// TapeOperator objTapeOperator;
// TapeOperator.MediaInfo objMediaInfo;
// FileStream objFileStreamToWrite;
// byte[] objWriteBytes;
// Console.WriteLine("WriteFileToTape Method");
// Console.WriteLine("Initializing the tape drive...");
// objTapeOperator = new TapeOperator();
// objTapeOperator.Load(TapeName);
// Console.WriteLine("Setting Tape Position...");
// objTapeOperator.SetTapePosition(objBackupFile.StartTapeLocation);
// Console.WriteLine("Tape Position is " + objTapeOperator.GetTapePosition());
// //for some reason, I kept getting an error until I added the below statements
// Console.WriteLine("Getting the Tape Info...");
// objMediaInfo = objTapeOperator.GetTapeMediaParameters();
// //Console.WriteLine(objMediaInfo.BlockSize);
// //Console.WriteLine(objTapeOperator.BlockSize);
// Console.WriteLine("Opening the file...");
// objFileStreamToWrite = new FileStream(objBackupFile.FileNameAndPath, FileMode.Open, FileAccess.Read);
// objBackupFile.Size = objFileStreamToWrite.Length;
// //This code is where modification will be required to accomodate consecutive reads and writes to the tape for large file sizes
// if (objBackupFile.isLargeFile)
// {
// Console.WriteLine("This file will take " + objBackupFile.FileChunkCount + " Passes...");
// for (int intCounter = 1; intCounter <= objBackupFile.FileChunkCount; intCounter++)
// {
// if (intCounter < objBackupFile.FileChunkCount)
// {
// Console.WriteLine("This is pass " + intCounter);
// //Console.WriteLine("Initilizing Array");
// objWriteBytes = new byte[BackupFile.MaxMemoryChunk];
// //Console.WriteLine("Done Initilizing Array");
// Console.WriteLine("Reading file to Memory...");
// //Console.WriteLine(objFileStreamToWrite.Position);
// //lngPosition = objFileStreamToWrite.Position;
// objFileStreamToWrite.Read(objWriteBytes, 0, BackupFile.MaxMemoryChunk);
// //Console.WriteLine(objTapeOperator.GetTapePosition());
// Console.WriteLine("Writing Filestream to Tape");
// objTapeOperator.Write(objTapeOperator.GetTapePosition(), objWriteBytes);
// //Console.WriteLine("Finished Writing to Tape");
// //Console.WriteLine(objTapeOperator.GetTapePosition());
// }
// else
// {
// int intLeftOverBytes = (int)(objBackupFile.Size - BackupFile.MaxMemoryChunk * (intCounter - 1));
// Console.WriteLine("This is pass " + intCounter);
// //Console.WriteLine("Initilizing Array");
// objWriteBytes = new byte[intLeftOverBytes];
// //Console.WriteLine("Done Initilizing Array");
// Console.WriteLine("Reading file to Memory...");
// //lngPosition = objFileStreamToWrite.Position;
// objFileStreamToWrite.Read(objWriteBytes, 0, intLeftOverBytes);
// Console.WriteLine("Writing Filestream to Tape");
// objTapeOperator.Write(objTapeOperator.GetTapePosition(), objWriteBytes);
// //Console.WriteLine("Finished Writing to Tape");
// }
// }
// }
// else
// {
// //Console.WriteLine("Initilizing Array");
// objWriteBytes = new byte[objFileStreamToWrite.Length];//This one generates an IOException if the file size is greater than 2GB
// //Console.WriteLine("Done Initilizing Array");
// Console.WriteLine("Reading file to Memory...");
// objFileStreamToWrite.Read(objWriteBytes, 0, (int)objFileStreamToWrite.Length);
// Console.WriteLine("Writing Filestream to Tape");
// objTapeOperator.Write(objBackupFile.StartTapeLocation, objWriteBytes);
// Console.WriteLine("Finished Writing to Tape");
// }
// objBackupFile.EndTapeLocation = objTapeOperator.GetTapePosition();
// Console.WriteLine("Tape Position is " + objBackupFile.EndTapeLocation);
// Console.WriteLine("Now I'm Cleaning up resources...");
// objTapeOperator.Close();
// objFileStreamToWrite.Close();
// Console.WriteLine("Now I'm Done!");
// Console.WriteLine();
//}
public void WriteFilesToTape(BackupFiles objBackupFiles, bool isSingleFile = false)
{
Console.WriteLine("WriteFileToTape Method");
Console.WriteLine("Initializing the tape drive...");
TapeOperator = new TapeOperator();
TapeOperator.Load(TapeName);
Console.WriteLine("Setting Tape Position...");
//If it's a single file than I use the tape location specified on the BackupFile object, else I parse the collection for the next available location
TapeOperator.SetTapePosition(isSingleFile ? objBackupFiles[0].StartTapeLocation : objBackupFiles.NextAvailableTapeLocation);
Console.WriteLine("Tape Position is " + TapeOperator.GetTapePosition());
//for some reason, I kept getting an error until I added the below statements
Console.WriteLine("Getting the Tape Info...");
MediaInfo = TapeOperator.GetTapeMediaParameters();
//Console.WriteLine(objMediaInfo.BlockSize);
//Console.WriteLine(objTapeOperator.BlockSize);
foreach (BackupFile objBackupFile in objBackupFiles)
{
Console.WriteLine("Opening the file...");
FileStreamToWrite = new FileStream(objBackupFile.FileNameAndPath, FileMode.Open, FileAccess.Read);
objBackupFile.Size = FileStreamToWrite.Length;
objBackupFile.StartTapeLocation = TapeOperator.GetTapePosition();
//This code is where modification will be required to accomodate consecutive reads and writes to the tape for large file sizes
if (objBackupFile.isLargeFile)
{
Console.WriteLine("This file will take " + objBackupFile.FileChunkCount + " Passes...");
for (int intCounter = 1; intCounter <= objBackupFile.FileChunkCount; intCounter++)
{
if (intCounter < objBackupFile.FileChunkCount)
{
WriteBytes = null;//clears the memory...
GC.Collect();
Console.WriteLine("This is pass " + intCounter);
//Console.WriteLine("Initilizing Array");
WriteBytes = new byte[BackupFile.MaxMemoryChunk];
//Console.WriteLine("Done Initilizing Array");
Console.WriteLine("Reading file to Memory...");
//Console.WriteLine(objFileStreamToWrite.Position);
//lngPosition = objFileStreamToWrite.Position;
FileStreamToWrite.Read(WriteBytes, 0, BackupFile.MaxMemoryChunk);
//Console.WriteLine(objTapeOperator.GetTapePosition());
Console.WriteLine("Writing Filestream to Tape");
TapeOperator.Write(TapeOperator.GetTapePosition(), WriteBytes);
//Console.WriteLine("Finished Writing to Tape");
//Console.WriteLine(objTapeOperator.GetTapePosition());
}
else
{
int intLeftOverBytes = (int)(objBackupFile.Size - BackupFile.MaxMemoryChunk * (intCounter - 1));
WriteBytes = null;//clears the memory...
GC.Collect();
Console.WriteLine("This is pass " + intCounter);
//Console.WriteLine("Initilizing Array");
WriteBytes = new byte[intLeftOverBytes];
//Console.WriteLine("Done Initilizing Array");
Console.WriteLine("Reading file to Memory...");
//lngPosition = objFileStreamToWrite.Position;
FileStreamToWrite.Read(WriteBytes, 0, intLeftOverBytes);
Console.WriteLine("Writing Filestream to Tape");
TapeOperator.Write(TapeOperator.GetTapePosition(), WriteBytes);
//Console.WriteLine("Finished Writing to Tape");
}
}
}
else
{
WriteBytes = null;//clears the memory...
GC.Collect();
//Console.WriteLine("Initilizing Array");
WriteBytes = new byte[FileStreamToWrite.Length];//This one generates an IOException if the file size is greater than 2GB
//Console.WriteLine("Done Initilizing Array");
Console.WriteLine("Reading file to Memory...");
FileStreamToWrite.Read(WriteBytes, 0, (int)FileStreamToWrite.Length);
Console.WriteLine("Writing Filestream to Tape");
//TapeOperator.Write(objBackupFile.StartTapeLocation, WriteBytes);
TapeOperator.Write(isSingleFile ? objBackupFile.StartTapeLocation : objBackupFiles.NextAvailableTapeLocation, WriteBytes);
//Console.WriteLine("Finished Writing to Tape");
}
objBackupFile.EndTapeLocation = TapeOperator.GetTapePosition();
Console.WriteLine("Tape Position is " + objBackupFile.EndTapeLocation);
}
Console.WriteLine("Now I'm Cleaning up resources...");
TapeOperator.Close();
FileStreamToWrite.Close();
Console.WriteLine("Now I'm Done!");
Console.WriteLine();
}
public void WriteTapeMediaInfo()
{
Console.WriteLine("Initializing the tape drive...");
TapeOperator = new TapeOperator();
TapeOperator.Load(TapeName);
Console.WriteLine("Tape Position is " + TapeOperator.GetTapePosition());
//for some reason, I kept getting an error until I added the below statements
Console.WriteLine("Getting the Tape Info...");
MediaInfo = TapeOperator.GetTapeMediaParameters();
Console.WriteLine("Tape Block Size is: " + MediaInfo.BlockSize);
Console.WriteLine("Tape Capacity is: " + MediaInfo.Capacity);
Console.WriteLine("The Remaining Space is: " + MediaInfo.Remaining);
Console.WriteLine("Is Write Protected (1=True & 0=False): " + MediaInfo.IsWriteProtected);
Console.WriteLine("The Tape's partition Count is: " + MediaInfo.PartitionCount);
TapeOperator.Close();
}
//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();
}