Programming notes

Comprimere e decomprimere con .Net 2.0

Ecco come usare gli oggetti per la compressione messi a disposizione dal Framework .NET 2.0:

using System.IO;
using System.IO.Compression;

public static class Compressor
{
   public static byte[] Compress(byte[] data)
   {
      MemoryStream output = new MemoryStream();
      GZipStream gzip = new GZipStream(output, CompressionMode.Compress, true);
      gzip.Write(data, 0, data.Length);
      gzip.Close();
      return output.ToArray();
   }

   public static byte[] Decompress(byte[] data)
   {
      MemoryStream input = new MemoryStream();
      input.Write(data, 0, data.Length);
      input.Position = 0;
      GZipStream gzip = new GZipStream(input, CompressionMode.Decompress, true);
      MemoryStream output = new MemoryStream();
      byte[] buff = new byte[64];
      int read = -1;
      read = gzip.Read(buff, 0, buff.Length);
      
      while (read > 0)
      {
         output.Write(buff, 0, read);
         read = gzip.Read(buff, 0, buff.Length);
      }

      gzip.Close();
      return output.ToArray();
   }
}