public static FileRef CreateManagedTemporaryFile(int fileSize, [PathReference] string folderPath)
{
FileStream streamWriter = null;
try
{
var filePath = GetPath(folderPath);
var fileRef = FileRef.Create(filePath);
if (folderPath != string.Empty)
{
// GetRandomFilePath unlike GetTempFileName does not create a file. We need to create and use its stream.
streamWriter = File.Create(filePath);
}
else
{
// open stream to existing file
streamWriter = fileRef.OpenStreamWriter();
}
WriteRandomData(fileSize, streamWriter);
return(fileRef);
}
finally
{
// this stream is no longer needed - we keep only file path later
if (streamWriter != null)
{
streamWriter.Close();
streamWriter.Dispose();
}
}
}
/// <summary>
/// Changes files size. The content of the new file is random bytes.
/// </summary>
/// <param name="fileSize"></param>
/// <param name="filePath"></param>
/// <returns></returns>
public static FileRef OverwriteFile(int fileSize, [PathReference] string filePath)
{
FileStream streamWriter = null;
try
{
var fileRef = FileRef.Create(filePath);
streamWriter = fileRef.OpenStreamWriter();
WriteRandomData(fileSize, streamWriter);
return(fileRef);
}
finally
{
// this stream is no longer needed - we keep only file path later
if (streamWriter != null)
{
streamWriter.Close();
streamWriter.Dispose();
}
}
}
public static FileRef CreateFile([PathReference] string filePath, int fileSize)
{
FileStream streamWriter = null;
try
{
var path = Path.GetDirectoryName(filePath);
Directory.CreateDirectory(path);
streamWriter = File.Create(filePath);
WriteRandomData(fileSize, streamWriter);
return(FileRef.Create(filePath));
}
finally
{
// this stream is no longer needed - we keep only file path later
if (streamWriter != null)
{
streamWriter.Close();
streamWriter.Dispose();
}
}
}
public static TemporaryFile FromManagedFile(FileRef managedFile)
{
// TODO: perform validation? Or add similar construction methods?
return(new TemporaryFile(managedFile.FullPath));
}