public Ctor()
{
log = Substitute.For <ILog>();
settings = new CompressorSettingsBuilder()
.SetDefaultInputFileReadingBufferSize()
.SetDefaultOffsetLabel()
.SetDefaultPararllelism()
.GetSettings();
compression = Substitute.For <IBlockCompression>();
}
public StreamCompressor([NotNull] IBlockCompression compression, [NotNull] CompressorSettings settings, [NotNull] ILog log)
{
this.log = log ?? throw new ArgumentNullException(nameof(log));
this.compression = compression ?? throw new ArgumentNullException(nameof(compression));
this.settings = settings ?? throw new ArgumentNullException(nameof(settings));
}
public static IEnumerable <ArraySegment <byte> > CompressIntoBlocksWith(this string text, int readBufferSize, IBlockCompression blockCompression)
{
using (var memoryStream = text.AsStream())
{
foreach (var bytes in memoryStream.SpitToBytes(readBufferSize))
{
var block = new Block(bytes, memoryStream.Position);
var compressed = blockCompression.Compress(block);
yield return(compressed.Bytes);
}
}
}
