public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "countrylist/{country}")]
HttpRequest req, ILogger log, string country)
{
string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
string input = country.ToUpper();
List <string> path = null;
log.LogInformation("C# HTTP trigger function processed a request.");
// This computes the path and catches the two main error cases
try
{
path = CountrySearch.shortestPath(input);
}
catch (KeyNotFoundException)
{
log.LogInformation($"Key {input} not contained in the map.");
return(new BadRequestObjectResult($"The destination {input} is not contained in North America"));
}
if (path.Count == 0)
{
log.LogInformation($"No path from USA to {input} found in the map.");
return(new BadRequestObjectResult($"No path from USA to {input} found in the map"));
}
// format and return succesful response
PathResponse okPathResponce = new PathResponse {
Start = "USA", Destination = input, Path = path
};
var okJsonResponse = JsonConvert.SerializeObject(okPathResponce);
return(new JsonResult(okPathResponce));
}
private void ProcessCalculationResult(PathResponse result, bool wasCanceled)
{
if (wasCanceled)
{
OpenOpenerUi();
return;
}
if (result == null || result.Items.Count <= 0)
{
Debug.Log($"Got no result to display. Result count was: {result?.Items.Count}");
OpenOpenerUi();
return;
}
CloseAllUis();
resultPanel.SetResult(result.Items);
resultPanel.gameObject.SetActive(true);
statisticsUI.StopTimerAndDisplay();
statisticsUI.UpdateCalcDistance(result.Distance);
if (!customer.onlyBeeLine)
{
statisticsUI.UpdateRealDistance(NodeModel.GetVector3List(result.Items));
}
}
private void ProcessIntermediateResult(PathResponse intermediateRes)
{
if (intermediateRes == null || intermediateRes.DemoItems.Count <= 0)
{
return;
}
statisticsUI.UpdateCalcDistance(intermediateRes.Distance);
pathDisplayer.DisplayStraightPath(NodeModel.GetVector3List(intermediateRes.DemoItems));
}
public IActionResult Path([FromQuery(Name = "source")] string source, [FromQuery(Name = "target")] string target)
{
if (source == String.Empty || target == String.Empty || source == null || target == null)
{
return(BadRequest());
}
PathResponse pathResponse = pathFinding.FindPath(source, target);
if (pathResponse.stops.Count == 0)
{
return(BadRequest());
}
return(Json(pathResponse));
}
public void FinishProcessing(PathResponse pathResponse)
{
if (multiThreading)
{
//Add New Result To Queue Result To Call Back it
lock (_results)
{
_results.Enqueue(pathResponse);
}
}
else
{
pathResponse.callBack(pathResponse.path, pathResponse.succes);
}
}
// Call back The Result to Each Agent Request
void CallBackTheResult()
{
if (_results.Count > 0)
{
lock (_results)
{
for (int i = 0; i < _results.Count; i++)
{
PathResponse pathResponse = _results.Dequeue();
pathResponse.callBack(pathResponse.path, pathResponse.succes);
}
}
}
}
private IEnumerator QueryCalculationResult(string hostUrl, Action <PathResponse> intAction, Action <PathResponse, bool> actionOnResult)
{
Debug.Log("Checking for result...");
PathResponse result = null;
int numNetErrors = 0;
while (!cancelCalculation)
{
var request = CreateGetCalculatedWaypointsRequest(hostUrl);
yield return(request.SendWebRequest());
if (!request.isNetworkError && request.responseCode == 200)
{
Debug.Log("Got result.");
var response = Encoding.UTF8.GetString(request.downloadHandler.data);
result = JsonUtility.FromJson <PathResponse>(response);
if (result != null)
{
if (result.Items != null && result.Items.Count > 0)
{
break;
}
intAction(result);
}
}
else if (request.isNetworkError)
{
numNetErrors++;
Debug.LogWarning($"Network-Error, cant get result. Response-Code is: {request.responseCode}. \nNumber of failed attempts: {numNetErrors}");
if (numNetErrors > 10)
{
Debug.LogWarning("Cancel result fetching. There were more then a total of ten network errors!");
break;
}
}
yield return(new WaitForSeconds(delayBetweenRequests));
}
calculationActive = false;
Debug.Log("Displaying result...");
actionOnResult(result, cancelCalculation);
cancelCalculation = false;
}
public static List <PathResponse> ScanFolderService(string pathString, bool showFolder)
{
List <string> files = Directory.GetFiles(pathString).ToList();
var pathRespList = new List <PathResponse>();
foreach (var s in files)
{
FileInfo fileInf = new FileInfo(s);
//Использовать var и простой инициализатор
var pathResp = new PathResponse
{
FullName = fileInf.FullName,
CreationTime = fileInf.CreationTime,
LastWriteTime = fileInf.LastWriteTime,
Length = fileInf.Length,
IsDirectory = false
};
pathRespList.Add(pathResp);
}
//если пользователь отметил и папки
if (showFolder)
{
List <string> dirs = Directory.GetDirectories(pathString).ToList();
foreach (var s in dirs)
{
DirectoryInfo dirInfo = new DirectoryInfo(s);
//Использовать var и простой инициализатор
var pathResp = new PathResponse
{
FullName = dirInfo.FullName,
CreationTime = dirInfo.CreationTime,
LastWriteTime = dirInfo.LastWriteTime,
Length = FolderSizeService(s),
IsDirectory = true
};
pathRespList.Add(pathResp);
}
}
return(pathRespList);
}
public void FindingPath(PathRequest request, Action <PathResponse> callBack)
{
if (_pointGrid.grid == null)
{
return;
}
Heap <PointNode> openList = new Heap <PointNode>();
List <PointNode> closeList = new List <PointNode>();
PointNode agentNode = _pointGrid.GetPointNodeFromGridByPosition(request.startNode);
PointNode targetNode = _pointGrid.GetPointNodeFromGridByPosition(request.targetNode);
if (targetNode == null)
{
return;
}
openList.Add(agentNode);
while (openList.Count > 0)
{
PointNode currentNode = openList.Pop();
if (currentNode == null)
{
return;
}
//Check If Reach The Goal
if (_pointGrid.CheckIfPointsLinkedTogether(currentNode, targetNode))
{
targetNode.parent = currentNode;
break;
}
closeList.Add(currentNode);
List <PointNode> neighboursNode = currentNode.neighbors;
for (int i = 0; i < neighboursNode.Count; i++)
{
if (closeList.Contains(neighboursNode[i]))
{
continue;
}
else
{
float gCost = currentNode.gCost + CalculateMovementCostToTargetNode(currentNode, neighboursNode[i]);
float hCost = CalculateMovementCostToTargetNode(neighboursNode[i], targetNode);
if (openList.Contains(neighboursNode[i]) == false)
{
//Set fValue
neighboursNode[i].fCost = hCost + gCost;
neighboursNode[i].parent = currentNode;
openList.Add(neighboursNode[i]);
}
else
{
float new_fCost = gCost + hCost;
//Check if new fvalue is best than the older
if (neighboursNode[i].fCost > new_fCost)
{
//Update fValue
neighboursNode[i].fCost = new_fCost;
neighboursNode[i].parent = currentNode;
}
}
}
}
}
// Create The Path
Vector3[] path = CreatePath(agentNode, targetNode);
//Create Response To Call Back it
PathResponse pathResponse = new PathResponse(path, true, request.callBack);
//Call Back
callBack(pathResponse);
return;
}
/// <summary>
/// Метод для упрощенного создания объектов ответа и токена.
/// </summary>
public static void New(out PathRequestToken <TPoint> token, out PathResponse <TPoint> response)
{
token = new PathRequestToken <TPoint>();
response = new PathResponse <TPoint>(token);
}
/// <summary>
/// Find path between two stops using graph structure
/// </summary>
/// <param name="source">Node name where path should start</param>
/// <param name="destination">Node name where path should end</param>
/// <returns>Path response: List of nodes for found path and length of path</returns>
public PathResponse FindPath(string source, string destination)
{
SolvroCityGraphNode sourceNode = Nodes.Find((node) => node.stop_name == source); //first node
SolvroCityGraphNode destinationNode = Nodes.Find((node) => node.stop_name == destination); //last node
if (sourceNode == null || destinationNode == null) // check if nodes exists before attempting to find path
{
return(new PathResponse());
}
List <SolvroCityGraphNode> nodesCpy = new List <SolvroCityGraphNode>(Nodes); // create copy of nodes on which we can operate
List <SolvroCityGraphNode> nodesChecked = new List <SolvroCityGraphNode>(); // create empty list for visited nodes
for (int i = 0; i < nodesCpy.Count; i++) // init weigth of nodes
{
nodesCpy[i].weightSum = uint.MaxValue;
nodesCpy[i].prevNode = null;
}
sourceNode.weightSum = 0;
while (nodesCpy.Count > 0) // proceed with algorithm
{
SolvroCityGraphNode minNode = null;
foreach (SolvroCityGraphNode node in nodesCpy)
{
if (minNode == null || minNode.weightSum > node.weightSum)
{
minNode = node;
}
}
nodesChecked.Add(minNode);
nodesCpy.RemoveAll((node) => node.id == minNode.id);
for (int i = 0; i < minNode.Links.Count; i++)
{
if (minNode.Links[i].Available)
{
SolvroCityGraphNode neighbor = minNode.Links[i].TargetNode;
if (minNode.weightSum != uint.MaxValue && neighbor.weightSum > minNode.weightSum + minNode.Links[i].distance)
{
neighbor.weightSum = minNode.weightSum + minNode.Links[i].distance;
neighbor.prevNode = minNode;
}
}
}
}
//best path have been found, proceed to generating "nice" data
destinationNode = nodesChecked.Find((node) => node == destinationNode);
PathResponse pathResponse = new PathResponse()
{
distance = destinationNode.weightSum
};
List <SolvroCityNode> foundNodes = new List <SolvroCityNode>();
while (destinationNode.prevNode != null) // follow path from target to source (backwards)
{
foundNodes.Add(new SolvroCityNode()
{
id = destinationNode.id, stop_name = destinationNode.stop_name
});
destinationNode = destinationNode.prevNode;
}
if (destinationNode != sourceNode)
{
pathResponse = new PathResponse();
}
else
{
foundNodes.Add(new SolvroCityNode()
{
id = destinationNode.id, stop_name = destinationNode.stop_name
});
foundNodes.Reverse(); //path is reversed so we need to call reverse to have it in correct order
pathResponse.stops = foundNodes;
}
return(pathResponse);
}
