LINQ (Language Integrated Query) is really amazing.

Today I rewrote a function which picks the correct SRV-Record according to the priority and weight for XMPP client and server connections. The old code without comments were 63 lines. The new code is about 12 lines and much easier to read IMHO.

But take a look at the code yourself.

private SRVRecord PickSRVRecord(List<Srvrecord> srv)
{
	IEnumerable<Srvrecord> minServers
		= srv.Where(s1 = t; s1.Priority == srv.Min(s => s.Priority));

	if (minServers.Count() > 1)
	{
		int sumWeight = minServers.Sum(s = s.Weight);

		// Create a random value between 1 - total Weight
		int rnd = new Random().Next(1, sumWeight);

		int count = 0;
		SRVRecord result = minServers.First(
		s => rnd > ((count += s.Weight) - s.Weight) && rnd <= count);

		return result;
	}
	else
		return  minServers.First();
}