public void CreateOverlay()
{
if (this.Peers.Count == 0)
{
//create overlay SP first
Nod superPeer = new Nod(0, 0, true);
Peers.Add(superPeer);
LastNode = superPeer;
}
}
public void LeaveOverlay(Nod node)
{
if (node.IsSuperPeer)
{
Console.WriteLine("Not implemented");
}
UpdateAllNeihhbours(node);
Peers.Remove(Peers.Single(x => x.Id == node.Id));
}
public bool IsNodeInOverlay(Nod node)
{
var result = Peers.Find(item => node.Id == item.Id);
if (result == null)
{
return(false);
}
else
{
return(true);
}
}
public void PopulateOverlay()
{
Nod superPeer = new Nod(0, 0, true);
Peers.Add(superPeer);
for (int i = 1; i <= NrChains; i++)
{
for (int j = 1; j <= NrRings; j++)
{
Nod newNode = new Nod(i, j, false);
Peers.Add(newNode);
}
}
}
public SpiderOverlay(int nrChains, int nrRings)
{
this.NrChains = nrChains;
this.NrRings = nrRings;
this.NrPeers = nrChains * nrRings;
Peers = new List <Nod>();
LastNode = new Nod();
OvelayMatrix = new int[nrChains + 1, nrRings + 1];
for (int i = 0; i <= nrChains; i++)
{
for (int j = 0; j <= nrRings; j++)
{
OvelayMatrix[i, j] = 0;
}
}
}
public int getNrHops(Nod a, Nod b)
{
int nrHops = 0;
int chainDIF = 0;
int ringDIF = 0;
if (Math.Abs(a.Chain - b.Chain) <= NrPeers / 2)
{
chainDIF = Math.Abs(a.Chain - b.Chain);
}
else
{
chainDIF = NrPeers - Math.Abs(a.Chain - b.Chain);
}
ringDIF = Math.Abs(a.Ring - b.Ring);
nrHops = chainDIF + ringDIF;
return(nrHops);
}
public void JoinOverlay(Nod existingNode)
{
Nod newNode = new Nod();
if (this.Peers.Count == 1)
{
// join with the SP
newNode.Chain = 1;
newNode.Ring = 1;
newNode.Id = newNode.Chain.ToString() + "-" + newNode.Ring.ToString() + " ";
newNode.Status = new Neighbour(false, true, false, false);
if (!IsNodeInOverlay(newNode))
{
Peers.Add(newNode);
}
}
else
{
//rest of the cases
Neighbour status = existingNode.GetStatus();
if (!status.left)
{
if (existingNode.Chain + 1 > NrChains)
{
newNode.Chain = existingNode.Chain + 1 - NrChains;
}
else
{
newNode.Chain = existingNode.Chain + 1;
}
newNode.Ring = existingNode.Ring;
newNode.Id = newNode.Chain.ToString() + "-" + newNode.Ring.ToString() + " ";
if (newNode.Chain == NrChains)
{
newNode.Status = new Neighbour(false, true, true, true);
}
else
{
newNode.Status = new Neighbour(false, true, false, true);
}
//existingNode.status.left = true;
Peers.Where(item => item.Id == existingNode.Id).ToList().ForEach(s => s.Status.left = true);
if (!IsNodeInOverlay(newNode))
{
Peers.Add(newNode);
}
}
else
{
if (!status.right)
{
if (existingNode.Chain - 1 == 0)
{
newNode.Chain = NrChains;
}
else
{
newNode.Chain = existingNode.Chain - 1;
}
newNode.Ring = existingNode.Ring;
newNode.Id = newNode.Chain.ToString() + "-" + newNode.Ring.ToString() + " ";
if (newNode.Chain == NrChains)
{
newNode.Status = new Neighbour(false, true, true, true);
}
else
{
newNode.Status = new Neighbour(false, true, false, true);
}
Peers.Where(item => item.Id == existingNode.Id).ToList().ForEach(s => s.Status.right = true);
//existingNode.status.right = true;
if (!IsNodeInOverlay(newNode))
{
Peers.Add(newNode);
}
}
else
{
if (!status.up)
{
newNode.Chain = existingNode.Chain;
newNode.Ring = existingNode.Ring + 1;
newNode.Id = newNode.Chain.ToString() + "-" + newNode.Ring.ToString() + " ";
newNode.Status = new Neighbour(false, true, false, false);
Peers.Where(item => item.Id == existingNode.Id).ToList().ForEach(s => s.Status.up = true);
//existingNode.status.up = true;
if (!IsNodeInOverlay(newNode))
{
Peers.Add(newNode);
}
}
}
}
}
LastNode = newNode;
}
public void UpdateAllNeihhbours(Nod node)
{
if (node.Ring == NrRings)
{
//pe ultimul ring
Peers.Where(item => item.Ring == node.Ring - 1).ToList().ForEach(s => s.Status.up = false);
if (node.Chain == 1)
{
Peers.Where(item => item.Chain == NrChains).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain + 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
else
{
if (node.Chain == NrChains)
{
Peers.Where(item => item.Chain == 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain - 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
else
{
Peers.Where(item => item.Chain == NrChains + 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain - 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
}
}
else
{
//in mijloc
if (node.Ring == 1)
{
//ne mai gandim
Console.WriteLine("Not implemented");
}
else
{
Peers.Where(item => item.Ring == node.Ring - 1).ToList().ForEach(s => s.Status.up = false);
Peers.Where(item => item.Ring == node.Ring + 1).ToList().ForEach(s => s.Status.down = false);
if (node.Chain == 1)
{
Peers.Where(item => item.Chain == NrChains).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain + 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
else
{
if (node.Chain == NrChains)
{
Peers.Where(item => item.Chain == 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain - 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
else
{
Peers.Where(item => item.Chain == NrChains + 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.left = false;
}
});
Peers.Where(item => item.Chain == node.Chain - 1).ToList().ForEach(s =>
{
if (IsNodeInOverlay(s))
{
s.Status.right = false;
}
});
}
}
}
}
}
public int RemoveTwoNodesfromSameRing(Nod node1, Nod node2)
{
return(6);
}
public int RemoveTwoRandomNodes(Nod node1, Nod node2)
{
return(4);
}
public int RemoveTwoNodesFromSameChain(Nod node1, Nod node2)
{
return(6);
}
//private void UpdateStatus(Nod node)
//{
// List<Neighbour> neigbours = new List<Neighbour>();
// neigbours = GetAvailableNeighbours(node);
// peers.Where(item => item.ring == node.ring - 1).ToList().ForEach(s => s.status.up = false);
// peers.Where(item => item.Chain == node.Chain - 1).ToList().ForEach(s => s.status.left = false);
// peers.Where(item => item.Chain == node.Chain + 1).ToList().ForEach(s => s.status.right = false);
//}
public int RemoveRandomNode(Nod node)
{
return(4);
}
static void Main(string[] args)
{
if (File.Exists("Output.txt"))
{
File.Delete("Output.txt");
}
var spiderOverlay = new SpiderOverlay(60, 100);
spiderOverlay.CreateOverlay();
for (int i = 0; i < spiderOverlay.getMaximumNumberOfPeers(); i++)
{
if (spiderOverlay.Peers.Count != 0)
{
Nod existingNode = spiderOverlay.GetLastNode();
spiderOverlay.JoinOverlay(existingNode);
}
}
// spiderOverlay.PopulateOverlay();
spiderOverlay.DisplayOverlay();
Nod n = spiderOverlay.GetLastNode();
spiderOverlay.LeaveOverlay(n);
//spiderOverlay.DisplayOverlay();
//spiderOverlay.DisplayOverlayAsMatrix();
Console.WriteLine("Nr of peers in Overlay : " + spiderOverlay.getMaximumNumberOfPeers() + "\r\n");
if (File.Exists("Hops.txt"))
{
File.Delete("Hops.txt");
}
List <int> hopsValueList = new List <int>();
using (StreamWriter writetext = new StreamWriter("Hops.txt", true))
{
for (int i = 1; i < spiderOverlay.Peers.Count; i++)
{
for (int j = 1; j < spiderOverlay.Peers.Count; j++)
{
var item = spiderOverlay.getNrHops(spiderOverlay.Peers[i], spiderOverlay.Peers[j]);
hopsValueList.Add(item);
//writetext.WriteLine("Nr of hops between " + i + " and " + j + " : " +
//spiderOverlay.getNrHops(spiderOverlay.peers[i], spiderOverlay.peers[j]) + "\r\n");
}
}
}
Console.WriteLine("Maximum number of hops in Overlay : " + hopsValueList.Max() + "\r\n");
if (File.Exists("Values.txt"))
{
File.Delete("Values.txt");
}
// rezolutie 1280x1014, video quality Hight, Framerate 30 Fps, 1 camera
//using (StreamWriter writetext = new StreamWriter("Values.txt", true))
//{
// writetext.WriteLine("Bandwidth for H.264 with SPIDER: " + hopsValueList.Max() * 6.37 + " Mbps \r\n");
// writetext.WriteLine("Bandwidth for H.264 without SPIDER: " + spiderOverlay.Peers.Count * 6.37 + " Mbps \r\n");
// writetext.WriteLine("Bandwidth for MPEG-4 with SPIDER: " + hopsValueList.Max() * 9.90 + " Mbps \r\n");
// writetext.WriteLine("Bandwidth for MPEG-4 without SPIDER: " + spiderOverlay.Peers.Count * 6.37 + " Mbps \r\n");
// writetext.WriteLine("Bandwidth for MJPEG with SPIDER: " + hopsValueList.Max() * 89.12 + " Mbps \r\n");
// writetext.WriteLine("Bandwidth for MJPEG without SPIDER: " + spiderOverlay.Peers.Count * 89.12 + " Mbps \r\n");
//}
if (File.Exists("Valuesrezolutiistandard.txt"))
{
File.Delete("Valuesrezolutiistandard.txt");
}
using (StreamWriter writetext = new StreamWriter("Valuesrezolutiistandard.txt", true))
{
writetext.WriteLine("Bandwidth for general 240p with SPIDER: " + hopsValueList.Max() * 0.64 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 240p without SPIDER: " + spiderOverlay.Peers.Count * 0.64 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 360 with SPIDER: " + hopsValueList.Max() * 0.96 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 360 without SPIDER: " + spiderOverlay.Peers.Count * 0.64 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 480 with SPIDER: " + hopsValueList.Max() * 1.15 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 480 without SPIDER: " + spiderOverlay.Peers.Count * 1.15 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 720 with SPIDER: " + hopsValueList.Max() * 2.56 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 720 without SPIDER: " + spiderOverlay.Peers.Count * 2.56 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 720 hq with SPIDER: " + hopsValueList.Max() * 3.20 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 720 hq without SPIDER: " + spiderOverlay.Peers.Count * 3.20 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 1080 with SPIDER: " + hopsValueList.Max() * 5.12 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 1080 without SPIDER: " + spiderOverlay.Peers.Count * 5.12 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 1080 hq with SPIDER: " + hopsValueList.Max() * 7.68 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for general 1080 hq without SPIDER: " + spiderOverlay.Peers.Count * 7.68 + " Mbps \r\n");
}
var providers = new List <Provider>();
providers.Add(new Provider("Itunes", 240, null, null));
providers.Add(new Provider("Itunes", 360, null, null));
providers.Add(new Provider("Itunes", 480, 1.46, 1.46 / 8));
providers.Add(new Provider("Itunes", 720, 3.90, 3.9 / 8));
providers.Add(new Provider("Itunes", 1080, 4.88, 4.88 / 8));
providers.Add(new Provider("Netflix", 240, 0.24, 0.24 / 8));
providers.Add(new Provider("Netflix", 360, 0.54, 0.54 / 8));
providers.Add(new Provider("Netflix", 480, 1.02, 1.02 / 8));
providers.Add(new Provider("Netflix2", 480, 1.70, 1.70 / 8));
providers.Add(new Provider("Netflix", 720, 2.29, 2.29 / 8));
providers.Add(new Provider("Netflix2", 720, 3.51, 3.51 / 8));
providers.Add(new Provider("Netflix", 1080, 4.68, 4.68 / 8));
providers.Add(new Provider("Vimeo", 240, null, null));
providers.Add(new Provider("Vimeo", 360, 0.78, 0.78 / 8));
providers.Add(new Provider("Vimeo", 480, null, null));
providers.Add(new Provider("Vimeo", 720, 1.95, 1.95 / 8));
providers.Add(new Provider("Vimeo", 1080, 4.39, 4.39 / 8));
providers.Add(new Provider("Youtube", 240, 0.24, 0.24 / 8));
providers.Add(new Provider("Youtube", 360, 0.48, 0.48 / 8));
providers.Add(new Provider("Youtube", 480, 0.97, 097 / 8));
providers.Add(new Provider("Youtube", 720, 1.95, 195 / 8));
providers.Add(new Provider("Youtube", 1080, 3.41, 3.41 / 8));
var medie = providers.Average(item => item.Bitrate);
var list240 = providers.Where(item => item.Rezolution == 240);
var list360 = providers.Where(item => item.Rezolution == 360);
var list480 = providers.Where(item => item.Rezolution == 480);
var list720 = providers.Where(item => item.Rezolution == 720);
var list1080 = providers.Where(item => item.Rezolution == 1080);
var mean240 = list240.Average(item => item.Bitrate);
var mean360 = list360.Average(item => item.Bitrate);
var mean480 = list480.Average(item => item.Bitrate);
var mean720 = list720.Average(item => item.Bitrate);
var mean1080 = list1080.Average(item => item.Bitrate);
if (File.Exists("Valuesrezolutiiprovideri.txt"))
{
File.Delete("Valuesrezolutiiprovideri.txt");
}
var lspider = new List <double>();
var lfspider = new List <double>();
using (StreamWriter writetext = new StreamWriter("Valuesrezolutiiprovideri.txt", true))
{
foreach (var item in providers)
{
var spiderValue = hopsValueList.Max() * item.Bitrate / 8;
var noSpiderValue = spiderOverlay.Peers.Count * item.Bitrate / 8;
var ratio = spiderValue / noSpiderValue;
writetext.WriteLine("Bandwidth for " + item.Name + " rezolutie " + item.Rezolution + " is " + spiderValue * 8 + " Mbps \r\n");
writetext.WriteLine("Bandwidth for " + item.Name + "fara SPIDER rezolutie " + item.Rezolution + " is " + noSpiderValue * 8 + " Mbps \r\n");
writetext.WriteLine("Ratio Spider / noSpideris " + ratio);
writetext.WriteLine("Size on disk for " + item.Name + " 1 seconds of streaming is " + item.RequiredSize + "MB\r\n");
//
if (spiderValue != null && noSpiderValue != null)
{
lspider.Add((double)spiderValue);
lfspider.Add((double)noSpiderValue);
}
//writetext.WriteLine("Size on disk for " + item.Name + " 10 seconds of streaming is " + hopsValueList.Max() * item.Bitrate * 1/8 + "MB\r\n");
//writetext.WriteLine("Size on disk for " + item.Name + " 1 seconds of streaming is " + hopsValueList.Max() * item.Bitrate * 1 / 8 + "MB\r\n");
writetext.WriteLine("@@@@\r\n");
}
//writetext.WriteLine("Max disk size is " + lspider.Max());
var mediaSpider = lspider.Average();
var mediafaraSpider = lfspider.Average();
var statisticsAnalyzer = new Analysis();
var staticticsCalculatorCuSpider = new StaticticsCalculator(lspider);
var staticticsCalculatorFaraSpider = new StaticticsCalculator(lfspider);
writetext.WriteLine("media cu SPIDER = " + statisticsAnalyzer.DataAnalysis(lspider));
writetext.WriteLine("Coef de variatie cu SPIDER = " + staticticsCalculatorCuSpider.CoeficientdeVariatie());
writetext.WriteLine("media fara SPIDER = " + statisticsAnalyzer.DataAnalysis(lfspider));
writetext.WriteLine("Coef de variatie fara SPIDER = " + staticticsCalculatorFaraSpider.CoeficientdeVariatie());
}
//var plot = new XYScatter(true, lspider.ToArray(), new double[18,18], "titlu", "x", "y", new Panel());
//}
//SPIDER.FlawAnalysis.RunExamples.Run();
}