internal static IEnumerable<NodeModel> GenerateRandomConnectedNodes(NodeModel model)
{
var otherNodes = Nodes.ToArray().Where(kvp => kvp.Key != model.Guid).Select(kvp => new NodeModel { Guid = kvp.Key, Hostname = kvp.Value.Item1, Port = kvp.Value.Item2 }).ToList();
var connectedNodes = new List<NodeModel>(otherNodes.Count);
var modelConnectionsCount = Randomizer.Next(otherNodes.Count / 2);
for (int i = modelConnectionsCount - 1; i >= 0; i--)
{
var otherNodeIdx = Randomizer.Next(otherNodes.Count);
connectedNodes.Add(otherNodes[otherNodeIdx]);
otherNodes.RemoveAt(otherNodeIdx);
}
return connectedNodes;
}
internal static async Task SendConnectToModel(NodeModel model, IEnumerable<NodeModel> connectedNodes)
{
var uriBuilder = new UriBuilder(Uri.UriSchemeHttp, model.Hostname, model.Port, "/connectToNodes");
var req = WebRequest.Create(uriBuilder.Uri) as HttpWebRequest;
req.Method = WebRequestMethods.Http.Post;
req.ContentType = new ContentType(MediaTypeNames.Text.Plain) { CharSet = Encoding.ASCII.WebName }.ToString();
var reqData = Encoding.ASCII.GetBytes(string.Join(Environment.NewLine, connectedNodes.Select(n => $"{n.Hostname}:{n.Port}")));
req.ContentLength = reqData.LongLength;
try
{
using (var reqStream = await req.GetRequestStreamAsync())
{
await reqStream.WriteAsync(reqData, 0, reqData.Length);
await reqStream.FlushAsync();
}
using (var resp = await req.GetResponseAsync() as HttpWebResponse) { }
}
catch (WebException) { }
}
private static async Task SendDisconnectToModel(NodeModel model)
{
var uriBuilder = new UriBuilder(Uri.UriSchemeHttp, model.Hostname, model.Port, "/clearConnections");
var req = WebRequest.Create(uriBuilder.Uri) as HttpWebRequest;
try
{
using (var resp = await req.GetResponseAsync() as HttpWebResponse) { }
}
catch (WebException) { }
}