static void Main(string[] args)
{
ICompressor pcx = new PCXCompressor();
ICompressor rle3 = new RLE3compressor();
SuperSlowInternetConnection connection = new SuperSlowInternetConnection();
// This is too expensive to do twice!!
// ExpensiveData gameData1 = SuperSlowInternetConnection.DownloadBootlegGame();
// ExpensiveData gameData2 = SuperSlowInternetConnection.DownloadBootlegGame();
// Let's use a proxy instead.
ExpensiveData originalGameData = connection.DownloadBootlegGame(1000000);
ExpensiveData gameData1 = originalGameData.Clone();
ExpensiveData gameData2 = originalGameData.Clone();
// Which compression is more effective?
ICompressResult pcxResult = gameData1.Compress(pcx);
ICompressResult rle3Result = gameData1.Compress(rle3);
if (pcxResult.CompressedData.Size < rle3Result.CompressedData.Size)
{
Console.WriteLine($"PCX is smaller with a size of ({pcxResult.CompressedData.Size}) bytes.");
}
else
{
Console.WriteLine($"RLE3 is smaller with a size of ({pcxResult.CompressedData.Size}) bytes.");
}
}
public ICompressResult Compress(ExpensiveData data)
{
Random rnd = new Random((int)(DateTime.Now.Ticks & 0x0FFFFFFFF));
var originalData = data;
int minSize = (int)(originalData.Size / 2) + 1;
int maxSize = (int)(originalData.Size * 1.5) + 1;
var newDataSize = rnd.Next(minSize, maxSize);
ExpensiveData newData = ExpensiveDataProducer.GetData(newDataSize);
return(new CompressResult(newData));
}
public static ExpensiveData GetData(int size)
{
Random rnd = new Random((int)(DateTime.Now.Ticks & 0x0FFFFFFFF));
StringBuilder sb = new StringBuilder();
for (int j = 0; j < size; j++)
{
byte ascii = (byte)(rnd.Next(65, 65 + 26 - 1) & 0x0FF);
char c = (char)ascii;
sb.Append(c);
}
string s = sb.ToString();
ExpensiveData result = new ExpensiveData(s);
return(result);
}
public CompressResult(ExpensiveData compressedData)
{
Random _rnd = new Random();
CompressedData = compressedData;
}
public ExpensiveData DownloadBootlegGame(int gameSize)
{
ExpensiveData randomData = ExpensiveDataProducer.GetData(gameSize);
return(randomData);
}
