public IArchive Open(Stream stream, IFileFormat archiveFormat, IArchiveOptions archiveOptions)
{
if (archiveFormat is null)
{
stream = FileFormatFactory.Default.FromStream(stream, out archiveFormat);
}
if (archiveOptions is null)
{
archiveOptions = ArchiveOptions.Default;
}
if (!this.IsSupportedFileFormat(archiveFormat))
{
throw new FileFormatException(IO.Properties.ExceptionMessages.UnsupportedFileFormat);
}
if (archiveFormat.Equals(ArchiveFormat.Zip))
{
return(new SharpCompressSevenZipArchive(stream, archiveOptions));
}
else if (archiveFormat.Equals(ArchiveFormat.SevenZip))
{
return(new SharpCompressSevenZipArchive(stream, archiveOptions));
}
else
{
throw new FileFormatException(IO.Properties.ExceptionMessages.UnsupportedFileFormat);
}
}