public (bool isValid, string errorMessage) Validate(string sourceFilename, string destinationFilename)
{
if (string.IsNullOrEmpty(sourceFilename))
{
return(false, ConstructEmptyFilenameMessage(Source));
}
if (string.IsNullOrEmpty(destinationFilename))
{
return(false, ConstructEmptyFilenameMessage(Destination));
}
var sourceFileInfo = new FileInfo(sourceFilename);
var destinationFileInfo = new FileInfo(ZipSettings.GetFilenameWithZipExtension(destinationFilename));
if (sourceFileInfo == destinationFileInfo)
{
return(false, $"{Source} and {Destination} should not be the same");
}
if (!sourceFileInfo.Exists)
{
return(false, $"{Source} file name does not exists, please check ${Source} file name");
}
if (destinationFileInfo.Exists)
{
return(false, $"{ZipSettings.GetFilenameWithZipExtension(destinationFilename)} already exists");
}
return(true, string.Empty);
}
private static void DeleteFileOnAbortion(string destinationFilename)
{
var filenameWithZipExtension = ZipSettings.GetFilenameWithZipExtension(destinationFilename);
Console.WriteLine($"Operation was canceled - deleting {filenameWithZipExtension}.");
try
{
System.IO.File.Delete(filenameWithZipExtension);
Console.WriteLine($"{filenameWithZipExtension} is deleted.");
}
catch (Exception exception)
{
Console.WriteLine(
$"Failed deleting {filenameWithZipExtension} due to an exception below. Please contact a developer and send him the exception.");
Console.WriteLine(exception);
}
}
private void Write(ByteBlock byteBlock)
{
CancellationToken.ThrowIfCancellationRequested();
using (var fileCompressed = new FileStream(ZipSettings.GetFilenameWithZipExtension(DestinationFilename), FileMode.Append))
{
try
{
var idAsByteArray = BitConverter.GetBytes(byteBlock.Id);
fileCompressed.Write(idAsByteArray, 0, idAsByteArray.Length);
var dataLengthAsByteArray = BitConverter.GetBytes(byteBlock.Data.Length);
fileCompressed.Write(dataLengthAsByteArray, 0, dataLengthAsByteArray.Length);
var compressedLengthAsByteArray = BitConverter.GetBytes(byteBlock.CompressedData.Length);
fileCompressed.Write(compressedLengthAsByteArray, 0, compressedLengthAsByteArray.Length);
fileCompressed.Write(byteBlock.CompressedData, 0, byteBlock.CompressedData.Length);
}
catch (Exception e)
{
OnException(Command, e);
}
}
}
public ZipFactory(ZipSettings settings)
{
_settings = settings ?? throw new ArgumentNullException(nameof(settings));
}
public Zip(ZipSettings settings)
{
_settings = settings;
}