/// <inheritdoc />
protected override bool ReadChunk(Stream stream, out MemoryStream chunk)
{
chunk = null;
var bytes = new byte[4];
if (stream.Read(bytes, 0, 4) == 0)
{
return(false);
}
int length = BitConverter.ToInt32(bytes, 0);
if (length <= 0 || length > BlockSize * 2)
{
UserErrorException.ThrowUserErrorException("Invalid input file format");
}
var buffer = new byte[length];
if (stream.Read(buffer, 0, length) < length)
{
UserErrorException.ThrowUserErrorException("Invalid input file format. File is too short");
}
chunk = new MemoryStream(buffer);
return(true);
}
/// <summary>
/// Rethrows exception to be shown to user in some specific cases
/// </summary>
public static void ConvertFileExceptions(this Exception exception)
{
switch (exception)
{
case IOException _:
case UnauthorizedAccessException _:
case InvalidDataException _: //this is gzip case
//SecurityException _: //should not be thrown in normal run case:
UserErrorException.ThrowUserErrorException($"Error processing file: {exception.Message}");
break;
}
}
public static void Main(string[] args)
{
ExceptionManager.EnsureManagerInitialized();
args = args.Where(str => !string.IsNullOrEmpty(str)).ToArray();
if (args.Length != 3)
{
UserErrorException.ThrowUserErrorException("There should be 3 arguments");
}
bool compress = ParseMode(args[0]);
string inputPath = args[1];
string outputPath = args[2];
ZipZipProcessing.Process(inputPath, outputPath, compress);
}