public static byte[] ToCompressedBytes <T>(T packet) where T : IPacket
{
var packetBytes = ToBytes(packet);
var compressedPacketBytes = new byte[packetBytes.Length];
HuffmanCompressor.Compress(packetBytes, out compressedPacketBytes);
return(compressedPacketBytes);
}
static void Main(string[] args)
{
HuffmanCompressor oHuffmanCompressor = new HuffmanCompressor();
oHuffmanCompressor.Compress("test.txt");
Console.WriteLine("compressed");
oHuffmanCompressor.Decompress("test.txt");
Console.WriteLine("decompressed");
Console.ReadLine();
}
public static void CompressingPhrase(string uncompressedText, string expectedCompressedText)
{
//Arrange
var sorter = new BubbleSorter <HuffmanCompressor.ListNode>();
var translator = new Translator();
var huffman = new HuffmanCompressor(sorter, translator);
//Act
var(compressedText, decompressionKeys) = huffman.Compress(uncompressedText);
var decompressedText = translator.Translate(compressedText, decompressionKeys);
//Assert
Assert.AreEqual(expectedCompressedText, compressedText);
Assert.AreEqual(uncompressedText, decompressedText);
}
public void DecompressedTextTheSameAsOriginal([Random(0, 1000, 100, Distinct = true)] int length)
{
//Arrange
var sorter = new BubbleSorter <HuffmanCompressor.ListNode>();
var translator = new Translator();
var huffman = new HuffmanCompressor(sorter, translator);
var text = Randomizer.CreateRandomizer().GetString(length);
//Act
var(compressedText, decompressionKeys) = huffman.Compress(text);
var decompressedText = translator.Translate(compressedText, decompressionKeys);
//Assert
Assert.AreEqual(text, decompressedText);
}
public IActionResult Compress([FromForm] IFormFile file, string name)
{
try
{
string path = env.ContentRootPath + "\\" + file.FileName;
using var saver = new FileStream(path, FileMode.Create);
file.CopyTo(saver);
saver.Close();
using var fileWritten = new FileStream(path, FileMode.OpenOrCreate);
using var reader = new BinaryReader(fileWritten);
byte[] buffer = new byte[0];
while (fileWritten.Position < fileWritten.Length)
{
int index = buffer.Length;
Array.Resize <byte>(ref buffer, index + 100000);
byte[] aux = reader.ReadBytes(100000);
aux.CopyTo(buffer, index);
}
reader.Close();
fileWritten.Close();
for (int i = 0; i < buffer.Length; i++)
{
if (buffer[i] == 0)
{
Array.Resize <byte>(ref buffer, i);
break;
}
}
if (buffer.Length > 0)
{
var compressor = new HuffmanCompressor(env.ContentRootPath);
path = compressor.Compress(buffer, file.FileName, name);
var fileStream = new FileStream(path, FileMode.OpenOrCreate);
return(File(fileStream, "text/plain"));
}
else
{
return(StatusCode(500, "El archivo está vacío"));
}
}
catch
{
return(StatusCode(500));
}
}
public byte[] Compress(byte[] data)
{
byte[] patternPacked = patternPacker.Compress(data);
byte[] huffmanPacked = huffmanPacker.Compress(patternPacked);
return(huffmanPacked);
}