protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
if (!(state is List <int>))
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
var tags = (List <int>)state;
var locations = new Dictionary <int, LocationRank>();
int order = 0;
foreach (int tag in tags)
{
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetTaggedLocationIds",
new SqlParameter("tag", tag)));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
int id = (int)row["location"];
if (!locations.ContainsKey(id))
{
locations[id] = new LocationRank(id, order++);
}
locations[id].AddHit((int)row["priority"]);
}
}
var response = new LocationIdsResponse(locations.Values.OrderBy(x => x, new LocationRankComparer()).Select(l => l.LocId).ToList());
yield return(TM.Return(currentThread, new JsonResponse(response)));
}
public static IEnumerable <ThreadInfo> GetNames(ThreadManager TM, string procedure, Dictionary <string, string> query)
{
var currentThread = TM.CurrentThread;
if (query.ContainsKey("version"))
{
double version;
if (Double.TryParse(query["version"], out version))
{
if (version >= Program.LocationsVersion)
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.NoContent)));
}
}
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, procedure));
var table = TM.GetResult <DataTable>(currentThread);
var response = new LocationNamesResponse(Program.LocationsVersion);
foreach (DataRow row in table.Rows)
{
var location = new LocationName(row);
if (location.Id >= 0)
{
response.Names.Add(location);
}
}
response.Names = LocationsHandler.ApplySearchFilter(query, locName => locName.Name, (locName, name) => locName.Name = name, response.Names);
yield return(TM.Return(currentThread, new JsonResponse(response)));
}
public static IEnumerable <ThreadInfo> GetLocations(ThreadManager TM, string procedure, bool hideDescs, Dictionary <string, string> query, params SqlParameter[] parameters)
{
var currentThread = TM.CurrentThread;
if (query.ContainsKey("version"))
{
double version;
if (Double.TryParse(query["version"], out version))
{
if (version >= Program.LocationsVersion)
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.NoContent)));
}
}
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, procedure, parameters));
DataTable table = TM.GetResult <DataTable>(currentThread);
var response = new LocationsResponse(Program.LocationsVersion);
foreach (DataRow row in table.Rows)
{
var location = new Location(row, hideDescs);
if (location.Id >= 0)
{
if (location.IsMapArea())
{
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetMapAreaCorners",
new SqlParameter("@maparea", location.Id)));
DataTable cornerTable = TM.GetResult <DataTable>(currentThread);
foreach (DataRow cornerRow in cornerTable.Rows)
{
location.MapArea.Corners.Add(new LatLong(cornerRow));
}
}
if (location.HasAltNames)
{
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationAltNames",
new SqlParameter("@location", location.Id)));
location.AddAltNames(TM.GetResult <DataTable>(currentThread));
}
if (location.HasLinks && !hideDescs)
{
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationLinks",
new SqlParameter("@location", location.Id)));
location.AddLinks(TM.GetResult <DataTable>(currentThread));
}
response.Locations.Add(location);
}
}
response.Locations = LocationsHandler.ApplySearchFilter(query, location => location.Name, (location, name) => location.Name = name, response.Locations);
yield return(TM.Return(currentThread, new JsonResponse(response)));
}
protected override IEnumerable <ThreadInfo> HandleIntPath(ThreadManager TM, int value, object state)
{
var currentThread = TM.CurrentThread;
IntRedirect = DirectionsFinder.GetFinder(value);
if (IntRedirect == null)
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
yield return(TM.Return(currentThread, -1));
}
protected virtual IEnumerable <ThreadInfo> HandleFloatPath(ThreadManager TM, double value, object state)
{
var currentThread = TM.CurrentThread;
if (FloatRedirect != null)
{
yield return(TM.Return(currentThread, value));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
protected virtual IEnumerable <ThreadInfo> HandleUnknownPath(ThreadManager TM, string path, object state)
{
var currentThread = TM.CurrentThread;
if (UnknownRedirect != null)
{
yield return(TM.Return(currentThread, path));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationDesc", new SqlParameter("@location", (int)state)));
var table = TM.GetResult <DataTable>(currentThread);
foreach (DataRow row in table.Rows)
{
yield return(TM.Return(currentThread, new JsonResponse(new LocationDescResponse(row))));
}
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
protected virtual IEnumerable <ThreadInfo> HandleIntPath(ThreadManager TM, int value, object state)
{
var currentThread = TM.CurrentThread;
if (IntRedirect != null)
{
yield return(TM.Return(currentThread, value));
}
else
{
yield return(TM.Await(currentThread, HandleFloatPath(TM, value, state)));
yield return(TM.Return(currentThread));
}
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
yield return(TM.Return(currentThread, new JsonResponse(new DirectionsResponse(100, 0)
{
Result = new Directions(new List <DirectionPath>()
{
new DirectionPath(39.4830085089037, -87.3240387806918, "Go down the stairs", false, "DS", 0, null, false),
new DirectionPath(39.4830037513645, -87.3240594201352, null, false, null, 0, null, false),
new DirectionPath(39.4829310360043, -87.3240312773421, "Turn left in the hallway", false, "L2", 0, null, false),
new DirectionPath(39.4829595714821, -87.3239144478958, "Turn right and head outside", false, "EX", 0, null, false),
new DirectionPath(39.4829201855182, -87.3238995842144, null, false, null, 0, null, true),
new DirectionPath(39.4828827044101, -87.32387560499762, "Go around the circle", false, "FP", 0, null, true),
new DirectionPath(39.48269224869126, -87.32380184424972, null, false, null, 0, null, true),
new DirectionPath(39.482547336381884, -87.32394534243201, null, false, null, 0, null, true),
new DirectionPath(39.48244900285711, -87.32391852034186, null, false, null, 0, null, true),
new DirectionPath(39.48243968704229, -87.32385817063903, null, false, null, 0, null, true),
new DirectionPath(39.482352739379756, -87.32380720866774, "Cross the street", false, "CS", 0, null, true),
new DirectionPath(39.482256475766555, -87.32372137797927, "Follow the path", false, "FP", 0, null, true),
new DirectionPath(39.48215193126149, -87.32370528472518, null, false, null, 0, null, true),
new DirectionPath(39.48205670246667, -87.32352691782569, null, false, null, 0, null, true),
new DirectionPath(39.48196354373688, -87.3234759558544, null, false, null, 0, null, true),
new DirectionPath(39.48196871922512, -87.32338878406142, null, false, null, 0, null, true),
new DirectionPath(39.48189936765145, -87.32332575214957, "Travel around the Flame of the Millennium", false, "FP", 0, null, true),
new DirectionPath(39.48189315705929, -87.3232037116394, null, false, null, 0, null, true),
new DirectionPath(39.482012193312364, -87.32314202083205, null, false, null, 0, null, true),
new DirectionPath(39.481946982172865, -87.32293683184241, "Take the right path", false, "R1", 0, null, true),
new DirectionPath(39.48197492981158, -87.32283088458632, "Cross the street", false, "CS", 0, null, true),
new DirectionPath(39.48196664903091, -87.3227370072708, null, false, null, 0, null, true),
new DirectionPath(39.48198942117538, -87.32248085630988, null, true, null, 0, 0, true),
})
})));
}
protected override IEnumerable <ThreadInfo> HandleIntPath(ThreadManager TM, int value, object state)
{
var currentThread = TM.CurrentThread;
IntRedirect = (DirectionsFinder)state;
yield return(TM.Return(currentThread, value));
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
double version = (double)state;
Program.WriteServerVersion(version);
yield return(TM.Return(currentThread, new JsonResponse(new MessageResponse("Version update successful."))));
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
var storedProcData = (SqlStoredProcData)state;
var parameters = new SqlParameter[query.Count];
int i = 0;
foreach (var kvp in query)
{
parameters[i] = new SqlParameter(kvp.Key, kvp.Value);
i++;
}
yield return(TM.MakeDbCall(currentThread, Program.GetConnectionString(storedProcData.LoginData.Username, storedProcData.LoginData.Password), storedProcData.StoredProcName, parameters));
bool success = true;
var response = new StoredProcedureResponse();
try {
var table = TM.GetResult <DataTable>(currentThread);
foreach (DataColumn column in table.Columns)
{
response.Columns.Add(column.ColumnName);
}
int columns = response.Columns.Count;
foreach (DataRow row in table.Rows)
{
var rowList = new List <string>();
for (int j = 0; j < columns; j++)
{
rowList.Add(row.IsNull(j) ? null : row[j].ToString());
}
response.Table.Add(rowList);
}
} catch {
success = false;
}
if (success)
{
yield return(TM.Return(currentThread, new JsonResponse(response)));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
protected override IEnumerable <ThreadInfo> HandleIntPath(ThreadManager TM, int value, object state)
{
var currentThread = TM.CurrentThread;
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationDepartNode",
new SqlParameter("@location", value)));
var table = TM.GetResult <DataTable>(currentThread);
if (table.Rows.Count > 0)
{
yield return(TM.Return(currentThread, new DirectionsFinder(table.Rows[0])));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
if (query.ContainsKey("version"))
{
double version;
if (Double.TryParse(query["version"], out version))
{
if (version >= Program.TagsVersion)
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.NoContent)));
}
}
}
var response = new TagsResponse(Program.TagsVersion);
var categories = new Dictionary <string, TagCategory>();
categories.Add("", response.Root);
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetTagCategories"));
using (var table = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow row in table.Rows)
{
var category = new TagCategory(row);
categories[category.Parent ?? ""].Children.Add(category);
categories.Add(category.Name, category);
}
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetTags"));
using (var table = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow row in table.Rows)
{
var tag = new Tag(row);
categories[(string)row["category"]].Tags.Add(tag);
}
}
yield return(TM.Return(currentThread, new JsonResponse(response)));
}
protected override IEnumerable <ThreadInfo> HandleIntPath(ThreadManager TM, int value, object state)
{
var currentThread = TM.CurrentThread;
var tags = state is List <int>?(List <int>)state : new List <int>();
tags.Add(value);
yield return(TM.Return(currentThread, tags));
}
private static IEnumerable <ThreadInfo> HandleRequest(ThreadManager TM, HttpListenerContext context)
{
var currentThread = TM.CurrentThread;
JsonResponse result = null;
var path = Uri.UnescapeDataString(context.Request.Url.LocalPath).Split('/').SkipWhile(String.IsNullOrEmpty).TakeWhile(s => !String.IsNullOrEmpty(s));
Dictionary <string, string> query = new Dictionary <string, string>();
if (!String.IsNullOrEmpty(context.Request.Url.Query))
{
var querySplit = Uri.UnescapeDataString(context.Request.Url.Query).Split('?', '&', ';').Skip(1);
foreach (string field in querySplit)
{
int equalsPos = field.IndexOf('=');
if (equalsPos == -1 || equalsPos == 0 || equalsPos == field.Length - 1)
{
result = new JsonResponse(HttpStatusCode.BadRequest);
break;
}
query.Add(field.Substring(0, equalsPos), field.Substring(equalsPos + 1, field.Length - equalsPos - 1));
}
}
if (result == null)
{
yield return(TM.Await(currentThread, _handler.HandlePath(TM, path, query, new object())));
try
{
result = TM.GetResult <JsonResponse>(currentThread);
}
catch (Exception)
{
result = new JsonResponse(HttpStatusCode.InternalServerError);
}
}
var encoding = new ASCIIEncoding();
byte[] b;
if (result.Json != null)
{
b = encoding.GetBytes(result.Json.Serialize());
}
else
{
b = encoding.GetBytes(result.Message);
}
context.Response.OutputStream.Write(b, 0, b.Length);
context.Response.StatusCode = (int)result.StatusCode;
context.Response.Close();
yield return(TM.Return(currentThread, null));
}
public IEnumerable <ThreadInfo> HandlePath(ThreadManager TM, IEnumerable <string> path, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
if (path.Any())
{
if (Redirects.ContainsKey(path.First()))
{
yield return(TM.Await(currentThread, Redirects[path.First()].HandlePath(TM, path.Skip(1), query, state)));
}
else
{
int intValue;
if (Int32.TryParse(path.First(), out intValue))
{
yield return(TM.Await(currentThread, HandleIntPath(TM, intValue, state)));
if (!(TM.GetResultNoException(currentThread) is JsonResponse))
{
yield return(TM.Await(currentThread, IntRedirect.HandlePath(TM, path.Skip(1), query, TM.GetResult(currentThread))));
}
}
else
{
double floatValue;
if (Double.TryParse(path.First(), out floatValue))
{
yield return(TM.Await(currentThread, HandleFloatPath(TM, floatValue, state)));
if (!(TM.GetResultNoException(currentThread) is JsonResponse))
{
yield return(TM.Await(currentThread, FloatRedirect.HandlePath(TM, path.Skip(1), query, TM.GetResult(currentThread))));
}
}
else
{
yield return(TM.Await(currentThread, HandleUnknownPath(TM, path.First(), state)));
if (!(TM.GetResultNoException(currentThread) is JsonResponse))
{
yield return(TM.Await(currentThread, UnknownRedirect.HandlePath(TM, path.Skip(1), query, TM.GetResult(currentThread))));
}
}
}
}
}
else
{
yield return(TM.Await(currentThread, HandleNoPath(TM, query, state)));
}
yield return(TM.Return(currentThread));
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
if ((int)state >= 0)
{
TM.Enqueue(GetDirections(TM, (int)state, query));
}
yield return(TM.Sleep(currentThread, 1000));
while (_done == 0)
{
yield return(TM.Sleep(currentThread, 1000));
}
bool wait;
if (query.ContainsKey("wait") && Boolean.TryParse(query["wait"], out wait) && wait)
{
while (_done < 100)
{
yield return(TM.Sleep(currentThread, 1000));
}
}
int done = _done;
if (done < 100)
{
yield return(TM.Return(currentThread, new JsonResponse(new DirectionsResponse(done, _id))));
}
else
{
var directions = new DirectionsResponse(100, _id);
directions.Result = new Directions(_paths);
yield return(TM.Return(currentThread, new JsonResponse(directions)));
}
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
var loginData = (SqlLoginData)state;
yield return(TM.MakeDbCall(currentThread, Program.GetConnectionString(loginData.Username, loginData.Password), "spTestConnection"));
bool success = true;
try {
var result = TM.GetResult <DataTable>(currentThread);
if (result.Rows.Count != 1 || (int)result.Rows[0][0] != 56)
{
success = false;
}
} catch {
success = false;
}
if (success)
{
var alreadyLoggedIn = AdminHandler.Logins.Where(kvp => kvp.Value.Username == loginData.Username);
if (alreadyLoggedIn.Any())
{
AdminHandler.Logins.Remove(alreadyLoggedIn.First().Key);
}
Guid id = Guid.NewGuid();
while (AdminHandler.Logins.ContainsKey(id))
{
id = Guid.NewGuid();
}
AdminHandler.Logins[id] = loginData;
yield return(TM.Return(currentThread, new JsonResponse(new AuthenticationResponse(loginData.Expiration, id))));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
var result = new PathDataResponse(Program.LocationsVersion);
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetPaths"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
result.Paths.Add(new Path(row));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetNodes"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
result.Nodes.Add(new Node(row));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetPartitions"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
result.Partitions.Add(new Partition(row));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetPartitions"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
result.Partitions.Add(new Partition(row));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetDirectionMessages"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
result.Messages.Add(new DirectionMessage(row));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetDirections"));
foreach (DataRow row in TM.GetResult <DataTable>(currentThread).Rows)
{
var direction = new Direction(row);
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetDirectionPaths", new SqlParameter("direction", direction.Id)));
foreach (DataRow pathRow in TM.GetResult <DataTable>(currentThread).Rows)
{
direction.Paths.Add((int)pathRow["path"]);
}
result.Directions.Add(direction);
}
yield return(TM.Return(currentThread, new JsonResponse(result)));
}
protected override IEnumerable <ThreadInfo> HandleUnknownPath(ThreadManager TM, string path, object state)
{
var currentThread = TM.CurrentThread;
bool success = true;
Guid id = new Guid();
try {
id = new Guid((string)path);
if (!AdminHandler.Logins.ContainsKey(id) || Logins[id].Expiration < DateTime.Now)
{
success = false;
}
} catch {
success = false;
}
if (success)
{
yield return(TM.Return(currentThread, Logins[id]));
}
else
{
yield return(TM.Return(currentThread, new JsonResponse(HttpStatusCode.BadRequest)));
}
}
private IEnumerable <ThreadInfo> GetPartitionPaths(ThreadManager TM, Stack <PartitionPass> partitions, Dictionary <int, SortedSet <Node> > goalNodes)
{
var currentThread = TM.CurrentThread;
var currentNode = partitions.Peek().Target;
var paths = new List <List <PartitionPass> >();
// Travel to other partitions, and get the paths through them
yield return(TM.Await(currentThread, GetNodePartitions(TM, currentNode, "spGetNodePartitions")));
var nodePartitions = TM.GetResult <SortedSet <int> >(currentThread).Except(partitions.Select((PartitionPass pp) => pp.Partition));
foreach (int partition in nodePartitions)
{
// See if any goal nodes are in this partition
if (goalNodes.ContainsKey(partition))
{
foreach (var goalNode in goalNodes[partition])
{
partitions.Push(new PartitionPass(partition, goalNode, _settings.WeightedDist(currentNode, goalNode)));
var path = partitions.Reverse().Skip(1).ToList();
paths.Add(path);
partitions.Pop();
}
}
// Go to all the boundaries of this partition
yield return(TM.Await(currentThread, GetPartitionBoundaries(TM, partition)));
var targetNodes = TM.GetResult <SortedSet <Node> >(currentThread);
if (goalNodes.ContainsKey(partition))
{
targetNodes.ExceptWith(goalNodes[partition]);
}
targetNodes.Remove(currentNode);
foreach (var targetNode in targetNodes)
{
partitions.Push(new PartitionPass(partition, targetNode, _settings.WeightedDist(currentNode, targetNode)));
yield return(TM.Await(currentThread, GetPartitionPaths(TM, partitions, goalNodes)));
paths.AddRange(TM.GetResult <List <List <PartitionPass> > >(currentThread));
partitions.Pop();
}
}
yield return(TM.Return(currentThread, paths));
}
private IEnumerable <ThreadInfo> GetPartitionBoundaries(ThreadManager TM, int partition)
{
var currentThread = TM.CurrentThread;
var nodes = new SortedSet <Node>(new NodeComparer());
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetPartitionBoundaries", new SqlParameter("@partition", partition)));
using (var boundariesTable = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow boundaryRow in boundariesTable.Rows)
{
nodes.Add(new Node(boundaryRow));
}
}
yield return(TM.Return(currentThread, nodes));
}
private IEnumerable <ThreadInfo> GetNodePartitions(ThreadManager TM, Node node, string procedure)
{
var currentThread = TM.CurrentThread;
var partitions = new SortedSet <int>();
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, procedure, new SqlParameter("@node", node.Id)));
using (var partitionsTable = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow partitionRow in partitionsTable.Rows)
{
partitions.Add((int)partitionRow["partition"]);
}
}
yield return(TM.Return(currentThread, partitions));
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
yield return(TM.Return(currentThread, new JsonResponse(new DirectionsResponse(100, 0)
{
Result = new Directions(
new List <DirectionPath>()
{
new DirectionPath(39.4828627941384, -87.324008279888, "Turn right in the hallway", false, "R2", 0, null, false),
new DirectionPath(39.4828306460166, -87.3241490677771, null, false, null, 0, null, false),
new DirectionPath(39.4828620904229, -87.3241637888807, null, false, null, 0, null, false),
new DirectionPath(39.4828494067565, -87.3242174834412, null, false, null, 0, null, false),
new DirectionPath(39.4828290215239, -87.32431169557, "Turn right", false, "R2", 0, null, false),
new DirectionPath(39.4828717938695, -87.3243267616227, null, true, null, 0, null, false),
new DirectionPath(39.4828290215239, -87.32431169557, "Turn left", false, "L2", 0, 0, false),
new DirectionPath(39.4828494067565, -87.3242174834412, null, false, null, 0, null, false),
new DirectionPath(39.4828620904229, -87.3241637888807, null, false, null, 0, null, false),
new DirectionPath(39.4828306460166, -87.3241490677771, null, false, null, 0, null, false),
new DirectionPath(39.4828627941384, -87.324008279888, null, false, null, 0, null, false),
new DirectionPath(39.4828963086285, -87.3238687475089, null, false, null, 0, null, false),
new DirectionPath(39.4829231475358, -87.3238794992205, null, false, null, 0, null, false),
new DirectionPath(39.4829323644, -87.3238428275053, null, false, null, 0, null, false),
new DirectionPath(39.482976927114, -87.3238606794038, null, false, null, 0, null, false),
new DirectionPath(39.4829813587565, -87.3238419186537, null, false, null, 0, null, false),
new DirectionPath(39.4829698321545, -87.3238144421359, null, false, null, 0, null, false),
new DirectionPath(39.4830197430914, -87.3236155710439, null, false, null, 0, null, false),
new DirectionPath(39.483097836962, -87.3236405966255, "Go up the stairs", false, "US", 0, null, false),
new DirectionPath(39.4831005618263, -87.3236292285931, null, false, null, 0, null, false),
new DirectionPath(39.4837052580385, -87.3238335793924, "Turn right", false, "R2", 0, null, false),
new DirectionPath(39.483714772609, -87.3237985626965, null, true, null, 0, 0, false),
new DirectionPath(39.4837052580385, -87.3238335793924, null, false, null, 0, null, false),
new DirectionPath(39.4836460794462, -87.3240577916873, "Go down all the stairs", true, "DS", 0, 0, false),
new DirectionPath(39.483619680332296, -87.32420685781096, "Go outside", false, "EX", 0, null, false),
new DirectionPath(39.4835741371045, -87.32441607011413, "Continue straight", false, "GS", 0, null, true),
new DirectionPath(39.48338471835569, -87.32457566155051, "Make a slight left", false, "L1", 0, null, true),
new DirectionPath(39.483353735847345, -87.32472215518095, "Enter the building", false, "EN", 0, null, true),
new DirectionPath(39.48339203368583, -87.324730201808, null, true, null, 0, 0, false),
})
})));
}
public IEnumerable <ThreadInfo> GetDirections(ThreadManager TM, int to, Dictionary <string, string> query)
{
var currentThread = TM.CurrentThread;
_settings = new DirectionsSettings(query);
yield return(TM.Await(currentThread, GetShortestPath(TM, to)));
_pathFindingDone = 1;
yield return(TM.Await(currentThread, GetDirectionMessages(TM)));
_messageFindingDone = 1;
yield return(TM.Sleep(currentThread, 60000));
_directions.Remove(_id);
yield return(TM.Return(currentThread));
}
protected override IEnumerable <ThreadInfo> HandleNoPath(ThreadManager TM, Dictionary <string, string> query, object state)
{
var currentThread = TM.CurrentThread;
yield return(TM.Return(currentThread, new JsonResponse(new VersionResponse())));
}
public static IEnumerable <ThreadInfo> HandleClients(ThreadManager TM)
{
var currentThread = TM.CurrentThread;
while (true)
{
int tries = 1;
HttpListener listener = null;
while (true)
{
try
{
listener = new HttpListener();
listener.Prefixes.Add("http://+:5600/");
Console.WriteLine("[{0}]\nAttempt #{1} to start HttpListener...", DateTime.Now, tries);
listener.Start();
Console.WriteLine("HttpListener successfully started.\n");
break;
}
catch (Exception ex)
{
Console.WriteLine("HttpListener failed to start with exception:\nMessage: {0}\nStack trace:\n{1}\n", ex.Message, ex.StackTrace);
tries++;
}
if (tries > 5)
{
Console.WriteLine("[{0}]\nMaximum number of attempts reached. Try again later.\n", DateTime.Now);
yield return(TM.Return(currentThread));
}
else
{
Console.WriteLine("[{0}]\nWaiting 5 seconds before attemping again...", DateTime.Now);
yield return(TM.Sleep(currentThread, 5000));
}
}
Console.WriteLine("[{0}]\nWaiting for requests...\n", DateTime.Now);
while (true)
{
yield return(TM.WaitForClient(currentThread, listener));
HttpListenerContext context = null;
try
{
context = TM.GetResult <HttpListenerContext>(currentThread);
if (context.Request.RawUrl.StartsWith("/admin/authenticate/"))
{
Console.WriteLine("[{0}]\nHandling request: {1}\n", DateTime.Now, "/admin/authenticate/...");
}
else
{
Console.WriteLine("[{0}]\nHandling request: {1}\n", DateTime.Now, context.Request.RawUrl);
}
}
catch (Exception ex)
{
Console.WriteLine("HttpListener threw an exception while waiting for a client:\nMessage: {0}\nStack trace:\n{1}\n\nGoing to restart the HttpListener...", ex.Message, ex.StackTrace);
break;
}
TM.Enqueue(HandleRequest(TM, context));
}
listener.Close();
}
}
private IEnumerable <ThreadInfo> GetDirectionMessages(ThreadManager TM)
{
var currentThread = TM.CurrentThread;
for (int i = 0; i < _paths.Count; i++)
{
_messageFindingDone = (double)(i * i) / (double)(_paths.Count * _paths.Count);
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetDirection",
new SqlParameter("@startpath", _paths[i].Id)));
using (var directionTable = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow directionRow in directionTable.Rows)
{
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetDirectionPaths",
new SqlParameter("@direction", (int)directionRow["id"])));
using (var pathTable = TM.GetResult <DataTable>(currentThread)) {
bool match = true;
int dir = 0;
int j = i;
foreach (DataRow pathRow in pathTable.Rows)
{
if (dir != 0)
{
if (j < 0 || j >= _paths.Count || (int)pathRow["path"] != _paths[j].Id)
{
match = false;
break;
}
j += dir;
}
else
{
if (i > 0 && (int)pathRow["path"] == _paths[i - 1].Id)
{
dir = -1;
j = i - 2;
}
else if (i < _paths.Count - 1 && (int)pathRow["path"] == _paths[i + 1].Id)
{
dir = 1;
j = i + 2;
}
else
{
match = false;
break;
}
}
}
if (match)
{
// TODO: Deal with within's
bool forward = dir == 0 ? _paths[i].Forward : dir > 0;
int index = Math.Min(j - dir, i) + (int)directionRow["nodeoffset"];
if (forward)
{
if (!directionRow.IsNull("message1"))
{
_paths[index].Dir = (string)directionRow["message1"];
_paths[index].Action = (string)directionRow["action1"];
}
}
else
{
if (!directionRow.IsNull("message1"))
{
_paths[index].Dir = (string)directionRow["message2"];
_paths[index].Action = (string)directionRow["action2"];
}
}
}
}
}
}
}
yield return(TM.Return(currentThread));
}
private IEnumerable <ThreadInfo> GetShortestPath(ThreadManager TM, int to)
{
var currentThread = TM.CurrentThread;
// See if the start node is already in the goal location
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationNodes", new SqlParameter("@location", to)));
using (var table = TM.GetResult <DataTable>(currentThread)) {
if (table.Rows.Count == 0)
{
// Error - no nodes in goal location
yield return(TM.Return(currentThread));
}
foreach (DataRow row in table.Rows)
{
if (new Node(row).Id == _start.Id)
{
// Already at goal
yield return(TM.Return(currentThread));
}
}
}
// Get the nodes on the boundary of the goal location
var goalNodes = new Dictionary <int, SortedSet <Node> >();
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetLocationBoundaryNodes", new SqlParameter("@location", to)));
using (var table = TM.GetResult <DataTable>(currentThread)) {
if (table.Rows.Count == 0)
{
// Error - no nodes on goal location's boundary
yield return(TM.Return(currentThread));
}
foreach (DataRow row in table.Rows)
{
var node = new Node(row);
if (!goalNodes.ContainsKey(node.Partition.Value))
{
goalNodes[node.Partition.Value] = new SortedSet <Node>(new NodeComparer());
}
goalNodes[node.Partition.Value].Add(node);
}
}
// Get the possible partition paths
Stack <PartitionPass> partitions = new Stack <PartitionPass>();
partitions.Push(new PartitionPass(-1, _start, 0));
yield return(TM.Await(currentThread, GetPartitionPaths(TM, partitions, goalNodes)));
var passes = TM.GetResult <List <List <PartitionPass> > >(currentThread);
SortedSet <TargetPath> queue = new SortedSet <TargetPath>(new TargetPathComparer());
Dictionary <int, ShortestPath> shortestPaths = new Dictionary <int, ShortestPath>();
shortestPaths[_start.Id] = new ShortestPath();
foreach (var pass in passes)
{
queue.Add(new TargetPath(_start, 0, pass, queue, _settings));
}
while (true)
{
var currentPath = queue.First();
_pathFindingDone = Math.Max(_pathFindingDone, currentPath.DistSoFar * currentPath.DistSoFar / (currentPath.BestDist * currentPath.BestDist));
if (goalNodes.Any(kvp => kvp.Value.Contains(currentPath.CurrentNode)))
{
var currentNode = currentPath.CurrentNode;
var prevNode = shortestPaths[currentNode.Id].PrevNode;
_paths.Add(new DirectionPath(currentNode.Lat, currentNode.Lon, null, true, null, currentNode.Altitude, currentNode.Location, currentNode.Outside, shortestPaths[currentNode.Id].Id, shortestPaths[currentNode.Id].Forward));
while (currentNode.Id != _start.Id)
{
_paths.Insert(0, new DirectionPath(prevNode.Lat, prevNode.Lon, null, false, null, prevNode.Altitude, prevNode.Location, prevNode.Outside, shortestPaths[currentNode.Id].Id, shortestPaths[currentNode.Id].Forward));
currentNode = prevNode;
prevNode = shortestPaths[currentNode.Id].PrevNode;
}
_paths.First().Flag = true;
yield return(TM.Return(currentThread));
}
yield return(TM.MakeDbCall(currentThread, Program.ConnectionString, "spGetPathsFromNode",
new SqlParameter("@node", currentPath.CurrentNode.Id),
new SqlParameter("@part", currentPath.PartitionsLeft.First().Partition)));
using (var table = TM.GetResult <DataTable>(currentThread)) {
foreach (DataRow row in table.Rows)
{
var path = new PathToNode(row, currentPath.CurrentNode.Id, currentPath.PartitionsLeft.First().Partition);
double pathDist = _settings.WeightedDist(currentPath.CurrentNode, path.Node);
if (shortestPaths.ContainsKey(path.Node.Id))
{
if (shortestPaths[path.Node.Id].TotalDist > currentPath.DistSoFar + pathDist)
{
shortestPaths[path.Node.Id].SetPrevNode(currentPath.CurrentNode, pathDist, path.Path.Id, path.Forward, shortestPaths);
}
else if (shortestPaths[path.Node.Id].TotalDist < currentPath.DistSoFar + pathDist)
{
continue;
}
// TODO
}
else
{
shortestPaths[path.Node.Id] = new ShortestPath(currentPath.CurrentNode, pathDist, path.Path.Id, path.Forward, shortestPaths);
// TODO
}
if (path.Node.Id == currentPath.PartitionsLeft.First().Target.Id)
{
queue.Add(new TargetPath(path.Node, shortestPaths[path.Node.Id].TotalDist, currentPath.PartitionsLeft.Skip(1).ToList(), queue, _settings));
}
else
{
queue.Add(new TargetPath(path.Node, shortestPaths[path.Node.Id].TotalDist, currentPath.PartitionsLeft, queue, _settings));
}
}
}
queue.Remove(currentPath);
}
}