/// <summary>
/// Zips the specified un-zipped stream.
/// </summary>
/// <param name="unZipStream">The stream to zip.</param>
/// <param name="zipStream">The stream that will contain the zipper data.</param>
/// <param name="compressionType">The type of compression to use.</param>
public static void Compress(Stream unZipStream, Stream zipStream, CompressionAlgorithmStreaming compressionType)
{
switch (compressionType)
{
case CompressionAlgorithmStreaming.GZip:
GZipStream.Compress(unZipStream, zipStream);
break;
case CompressionAlgorithmStreaming.ZLib:
ZlibStream.Compress(unZipStream, zipStream);
break;
}
}
/// <summary>
/// Get the compression algorithm conversion.
/// </summary>
/// <param name="compressionAlgorithm">The compression algorithm.</param>
/// <returns>The compression algorithm index.</returns>
public static int GetAlgorithmInt32(CompressionAlgorithmStreaming compressionAlgorithm)
{
switch (compressionAlgorithm)
{
case CompressionAlgorithmStreaming.GZip:
return(2);
case CompressionAlgorithmStreaming.ZLib:
return(1);
case CompressionAlgorithmStreaming.None:
default:
return(0);
}
}
/// <summary>
/// Unzips a zipped stream to the specified stream
/// </summary>
/// <param name="zipArray">The zipped stream to un-zip.</param>
/// <param name="compressionType">The type of compression to use.</param>
public static byte[] Decompress(byte[] zipArray, CompressionAlgorithmStreaming compressionType)
{
using (MemoryStream unZipStream = new MemoryStream())
using (MemoryStream zipStream = new MemoryStream(zipArray))
{
switch (compressionType)
{
case CompressionAlgorithmStreaming.GZip:
GZipStream.Decompress(zipStream, unZipStream);
break;
case CompressionAlgorithmStreaming.ZLib:
ZlibStream.Decompress(zipStream, unZipStream);
break;
}
unZipStream.Close();
return(unZipStream.ToArray());
}
}
