private static void SendSideObjects(UdpClient client, IPEndPoint remote)
{
Console.WriteLine("What's the color of your figure? (You can press enter if it is not relevant)");
var color = Console.ReadLine();
Console.WriteLine("What's the shape of your figure? (You can press enter if it is not relevant)");
var shape = Console.ReadLine();
Console.WriteLine("What's the X position of your figure? (You can press enter if it is not relevant)");
var positionX = Console.ReadLine();
Console.WriteLine("What's the Y position of your figure? (You can press enter if it is not relevant)");
var positionY = Console.ReadLine();
if (color == NoValue && shape == NoValue && positionX == NoValue && positionY == NoValue)
{
Console.WriteLine("At least one of the parameters must be specified. Abort.");
return;
}
Console.WriteLine("At which side we should look for objects? (0 - Left, 1 - Right, 2 - Up, 3 - Down)");
var sideLine = Console.ReadLine();
if (String.IsNullOrWhiteSpace(sideLine))
{
Console.WriteLine("Side must be specified. Abort.");
return;
}
var side = Convert.ToByte(sideLine);
var message = new GetSideObjects();
message.Side = side;
if (!String.IsNullOrWhiteSpace(color))
{
message.Color = color;
}
if (!String.IsNullOrWhiteSpace(shape))
{
message.Shape = shape;
}
if (!String.IsNullOrWhiteSpace(positionX))
{
message.PositionX = float.Parse(positionX, CultureInfo.InvariantCulture);
}
else
{
message.PositionX = float.NaN;
}
if (!String.IsNullOrEmpty(positionY))
{
message.PositionY = float.Parse(positionY, CultureInfo.InvariantCulture);
}
else
{
message.PositionY = float.NaN;
}
var jsonMessage = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(message));
var messageBytes = new byte[jsonMessage.Length + 1];
messageBytes[0] = (byte)MessageType.GetSideObjects;
Array.Copy(jsonMessage, 0, messageBytes, 1, jsonMessage.Length);
var stopWatch = new Stopwatch();
client.Send(messageBytes, messageBytes.Length, remote);
Console.WriteLine("Request is sent.");
Console.WriteLine("Waiting for an answer...");
try
{
stopWatch.Start();
var answerBytes = client.Receive(ref remote);
stopWatch.Stop();
Console.WriteLine("Answer is received.");
Console.WriteLine("Request took " + stopWatch.Elapsed.ToString());
var foundObjects = JsonConvert.DeserializeObject <List <PrimitiveObject> >(Encoding.UTF8.GetString(answerBytes));
Console.WriteLine("Objects found: " + foundObjects.Count.ToString());
foreach (var obj in foundObjects)
{
Console.WriteLine(obj.ToString());
}
}
catch (Exception e)
{
Console.WriteLine("Request is not handled");
Console.WriteLine(e);
}
}
private static List <PrimitiveObject> GetSideObjects(GetSideObjects message)
{
/* Form properties based on the provided message */
var targetNodeProps = new Dictionary <String, object>();
if (!String.IsNullOrWhiteSpace(message.Color))
{
targetNodeProps.Add("Color", message.Color);
}
if (!String.IsNullOrWhiteSpace(message.Shape))
{
targetNodeProps.Add("Shape", message.Shape);
}
if (!float.IsNaN(message.PositionX))
{
targetNodeProps.Add("X", message.PositionX);
}
if (!float.IsNaN(message.PositionY))
{
targetNodeProps.Add("Y", message.PositionY);
}
string side;
if (message.Side == 0)
{
side = "Left";
}
else if (message.Side == 1)
{
side = "Right";
}
else if (message.Side == 2)
{
side = "Up";
}
else
{
side = "Down";
}
/* Run a query on the graph database */
var query = new Query(GraphDatabase);
query.Match(new NodeDescription("Primitive", targetNodeProps));
query.To(new RelationDescription(side));
var foundNodes = query.Match(new NodeDescription("Primitive"));
query.Execute();
var sideObjects = new List <PrimitiveObject>();
foreach (var obj in foundNodes.Nodes)
{
sideObjects.Add(new PrimitiveObject()
{
Shape = (string)obj.Properties["Shape"].Value,
Color = (string)obj.Properties["Color"].Value,
X = (float)obj.Properties["X"].Value,
Y = (float)obj.Properties["Y"].Value
});
}
return(sideObjects);
}
