submodule

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "src/protobuf"]
 	path = src/protobuf
-	url = git@git.vatsim-germany.org:nav/aman-com.git
+	url = git@git.ascarion.org:vatger/aman-com.git
 	branch = feature/protobuf

aman/AMAN.py

@@ -2,7 +2,10 @@
 
 import glob
 import os
+import random
 import sys
+from threading import Lock
+import time
 
 from aman.com import AircraftReport_pb2
 from aman.com.Euroscope import Euroscope
@@ -27,33 +30,32 @@ class AMAN:
 
     def __init__(self):
         # default initialization of members
-        self.systemConfig = None
-        self.aircraftPerformance = None
-        self.receiver = None
-        self.weather = None
-        self.workers = []
-        self.inbounds = {}
-
-    def __del__(self):
-        self.release()
-
-    def aquire(self):
         configPath = AMAN.findConfigPath()
+        self.SystemConfig = None
+        self.AircraftPerformance = None
+        self.Receiver = None
+        self.Weather = None
+        self.WebUi = None
+        self.Workers = []
+        self.WorkersLock = Lock()
 
         # read all system relevant configuration files
-        self.systemConfig = System(os.path.join(configPath, 'System.ini'))
+        self.SystemConfig = System(os.path.join(configPath, 'System.ini'))
         print('Parsed System.ini')
 
         # read the aircraft performance data
-        self.aircraftPerformance = AircraftPerformance(os.path.join(configPath, 'PerformanceData.ini'))
-        if None == self.aircraftPerformance:
+        self.AircraftPerformance = AircraftPerformance(os.path.join(configPath, 'PerformanceData.ini'))
+        if None == self.AircraftPerformance:
             sys.stderr.write('No aircraft performance data found!')
             sys.exit(-1)
         else:
-            print('Parsed PerformanceData.ini. Extracted ' + str(len(self.aircraftPerformance.aircrafts)) + ' aircrafts')
+            print('Parsed PerformanceData.ini. Extracted ' + str(len(self.AircraftPerformance.Aircrafts)) + ' aircrafts')
 
-        self.weather = Weather()
-        self.weather.acquire(self.systemConfig.Weather)
+        # create the communication syb
+        self.Weather = Weather(self.SystemConfig.Weather)
+        self.Receiver = Euroscope(configPath, self.SystemConfig.Server, self)
+
+        self.acquireLock()
 
         # find the airport configurations and create the workers
         airportsPath = os.path.join(os.path.join(configPath, 'airports'), '*.ini')
@@ -64,34 +66,45 @@ class AMAN:
             airportConfig = Airport(file, icao)
 
             # initialize the worker thread
-            worker = Worker()
-            worker.acquire(icao, airportConfig)
-            self.workers.append(worker)
+            worker = Worker(icao, airportConfig, self.Weather, self.AircraftPerformance, self.Receiver)
+            self.Workers.append(worker)
             print('Started worker for ' + icao)
 
-        # create the EuroScope receiver
-        self.receiver = Euroscope()
-        self.receiver.acquire(configPath, self.systemConfig.Server, self)
+        self.releaseLock()
 
-    def release(self):
-        if None != self.receiver:
-            self.receiver.release()
-        self.receiver = None
+        # initialize the random number generator
+        random.seed(time.time())
 
-        if None != self.weather:
-            self.weather.release()
-        self.weather = None
+    def acquireLock(self):
+        if None != self.WorkersLock:
+            self.WorkersLock.acquire()
 
-        if None != self.workers:
-            for worker in self.workers:
-                worker.release()
-        self.workers = None
+    def releaseLock(self):
+        if None != self.WorkersLock:
+            self.WorkersLock.release()
 
     def updateAircraftReport(self, report : AircraftReport_pb2.AircraftReport):
+        self.acquireLock()
+
         # find the correct worker for the inbound
-        for worker in self.workers:
-            if worker.icao == report.destination:
+        for worker in self.Workers:
+            if worker.Icao == report.destination:
                 worker.acquireLock()
-                worker.reportQueue[report.aircraft.callsign] = report
+                worker.ReportQueue[report.aircraft.callsign] = report
                 worker.releaseLock()
                 break
+
+        self.releaseLock()
+
+    def findAirport(self, icao : str):
+        self.acquireLock()
+
+        airport = None
+        for worker in self.Workers:
+            if icao == worker.Icao:
+                airport = worker
+                break
+
+        self.releaseLock()
+
+        return airport

aman/VERSION

@@ -0,0 +1 @@
+0.1.0

aman/app.py

@@ -0,0 +1,230 @@
+#!/usr/bin/env python
+
+import json
+import os
+from  subprocess import Popen, PIPE
+
+from flask import Flask, Response, request
+from flask_cors import CORS, cross_origin
+from json import JSONEncoder
+
+from aman.AMAN import AMAN
+from aman.config.AirportSequencing import AirportSequencing
+from aman.config.RunwaySequencing import RunwaySequencing
+
+class InboundEncoder(JSONEncoder):
+    def default(self, o):
+        if None == o.PlannedArrivalTime or None == o.EnrouteArrivalTime or None == o.PlannedRunway:
+            return {}
+
+        # configure the PTA
+        pta = str(o.PlannedArrivalTime)
+        delimiter = pta.find('.')
+        if -1 == delimiter:
+            delimiter = pta.find('+')
+
+        # calculate the delta time
+        delta = int((o.PlannedArrivalTime - o.EnrouteArrivalTime).total_seconds() / 60.0);
+
+        return {
+            'callsign' : o.Callsign,
+            'fixed' : o.FixedSequence,
+            'runway' : o.PlannedRunway.Name,
+            'pta' : pta[0:delimiter],
+            'delay' : delta,
+            'wtc' : o.WTC,
+            'iaf' : o.Report.initialApproachFix,
+            'expectedrunway' : o.ExpectedRunway,
+            'assignmentmode' : o.AssignmentMode
+        }
+
+class RunwaySequencingEncoder(JSONEncoder):
+    def default(self, o):
+        return { 'runway' : o.Runway.Name, 'spacing' : o.Spacing }
+
+# initialize the environment variables
+if 'AMAN_PATH' not in os.environ:
+    os.environ['AMAN_PATH'] = 'C:\\Repositories\VATSIM\\AMAN\\aman-sys\\aman'
+if 'AMAN_CONFIG_PATH' not in os.environ:
+    os.environ['AMAN_CONFIG_PATH'] = 'C:\\Repositories\\VATSIM\\AMAN\\config'
+
+# initialize the AMAN and the interface version
+aman = AMAN()
+version = '0.0.0'
+with open(os.path.join(os.environ['AMAN_PATH'], 'VERSION')) as file:
+    version = file.readline()
+
+# initialize the web services
+app = Flask('AMAN')
+cors = CORS(app)
+app.config['CORS_HEADERS'] = 'Content-Type'
+if __name__ == '__main__':
+    app.run()
+
+@app.route('/aman/airports')
+@cross_origin()
+def airports():
+    # get the airports
+    retval = []
+    for airport in aman.Workers:
+        retval.append(airport.Icao)
+
+    data = json.dumps({ 'version' : version, 'airports' : retval }, ensure_ascii=True)
+    return Response(data, status=200, mimetype='application/json')
+
+@app.route('/aman/admin/newuser')
+def newUser():
+    toolpath = os.path.join(os.path.join(os.environ['AMAN_PATH'], 'tools'), 'KeyPairCreator.py')
+    serverKeypath = os.path.join(os.path.join(os.path.join(AMAN.findConfigPath(), 'keys'), 'server'), 'server.key')
+    clientKeypath = os.path.join(os.path.join(AMAN.findConfigPath(), 'keys'), 'clients')
+
+    cmd = ['python', toolpath, '--directory=' + clientKeypath, '--publickey=' + serverKeypath]
+
+    child = Popen(cmd, stdout=PIPE, stderr=PIPE)
+    stdout, _ = child.communicate()
+    if 0 != child.returncode:
+        return Response('{}', status=404, mimetype='application/json')
+
+    keys = stdout.splitlines()
+    server = keys[0].decode('ascii')
+    public = keys[1].decode('ascii')
+    private = keys[2].decode('ascii')
+
+    dictionary = {
+        'server' : server,
+        'public' : public,
+        'private' : private,
+    }
+    data = json.dumps(dictionary, ensure_ascii=True)
+    return Response(data, status=200, mimetype='application/json')
+
+@app.route('/aman/configuration/<icao>')
+@cross_origin()
+def configuration(icao):
+    airport = aman.findAirport(icao.upper())
+    if None == airport:
+        return Response('{}', status=404, mimetype='application/json')
+
+    # get the current runway configuration
+    config = airport.SequencingConfiguration
+    dependencies = []
+    for dependency in config.RunwayDependencies:
+        rwy0 = config.runway(dependency[0])
+        rwy1 = config.runway(dependency[1])
+        cand1 = [ rwy0.Name, rwy1.Name ]
+        cand2 = [ rwy1.Name, rwy0.Name ]
+        found = False
+
+        for dep in dependencies:
+            if cand1 == dep or cand2 == dep:
+                found = True
+                break
+
+        if False == found:
+            dependencies.append(cand1)
+
+    runways = airport.Configuration.GngData.Runways[airport.Icao];
+    availableRunways = [];
+    for runway in runways:
+        availableRunways.append(runway.Name);
+
+    # get all IAFs of the airport
+    iafs = []
+    for runway in airport.Configuration.GngData.ArrivalRoutes:
+        for route in airport.Configuration.GngData.ArrivalRoutes[runway]:
+            found = False
+            for iaf in iafs:
+                if iaf['name'] == route.Iaf.Name:
+                    found = True
+                    break
+            if False == found:
+                iafs.append({ 'name' : route.Iaf.Name, 'lat' : route.Iaf.Coordinate[0], 'lon' : route.Iaf.Coordinate[1] })
+
+    dictionary = {
+        'airport' : airport.Icao,
+        'useShallShouldMay' : config.UseShallShouldMay,
+        'availableRunways' : availableRunways,
+        'activeRunways' : config.ActiveArrivalRunways,
+        'dependentRunways' : dependencies,
+        'iafColorization' : airport.Configuration.IafColorization,
+        'iafs' : iafs
+    }
+    data = json.dumps(dictionary, ensure_ascii=True, cls=RunwaySequencingEncoder)
+    return Response(data, status=200, mimetype='application/json')
+
+@app.route('/aman/sequence/<icao>')
+@cross_origin()
+def sequence(icao):
+    airport = aman.findAirport(icao.upper())
+    if None == airport:
+        return Response('{}', status=404, mimetype='application/json')
+
+    # convert the timestamp
+    stamp = str(airport.SequencingConfiguration.LastUpdateTimestamp)
+    delimiter = stamp.find('.')
+    if -1 == delimiter:
+        delimiter = stamp.find('+')
+
+    dictionary = {
+        'airport': airport.Icao,
+        'lastConfigurationUpdate': stamp[0:delimiter],
+        'sequence': airport.inboundSequence()
+    }
+    data = json.dumps(dictionary, ensure_ascii=True, cls=InboundEncoder)
+    return Response(data, status=200, mimetype='application/json')
+
+@app.route('/aman/configure', methods=['POST'])
+@cross_origin()
+def configure():
+    data = request.get_json()
+
+    # validate that the airport exists
+    if 'airport' not in data:
+        return Response('{}', status=404, mimetype='application/json')
+    airport = aman.findAirport(data['airport'].upper())
+    if None == airport:
+        return Response('{}', status=404, mimetype='application/json')
+
+    # check that all top-level information are available
+    if 'useShallShouldMay' not in data or 'activeRunways' not in data or 'dependentRunways' not in data:
+        return Response('{}', status=404, mimetype='application/json')
+    if False == isinstance(data['useShallShouldMay'], bool) or 0 == len(data['activeRunways']):
+        return Response('{}', status=404, mimetype='application/json')
+
+    # create the toplevel information
+    config = AirportSequencing(airport.Icao)
+    config.Airport = data['airport'].upper()
+    config.UseShallShouldMay = data['useShallShouldMay']
+
+    # parse the active runways
+    for activeRunway in data['activeRunways']:
+        if 'runway' not in activeRunway or 'spacing' not in activeRunway:
+            return Response('{}', status=404, mimetype='application/json')
+        if False == isinstance(activeRunway['runway'], str) or False == isinstance(activeRunway['spacing'], int):
+            return Response('{}', status=404, mimetype='application/json')
+
+        gngRunway = None
+        for runway in airport.Configuration.GngData.Runways[airport.Icao]:
+            if runway.Name == activeRunway['runway']:
+                gngRunway = runway
+                break
+
+        # could not find the runway
+        if None == gngRunway:
+            return None
+
+        runway = RunwaySequencing(gngRunway)
+        runway.Spacing = activeRunway['spacing']
+        config.activateRunway(runway)
+
+    # parse the dependent runways
+    for dependency in data['dependentRunways']:
+        if 2 != len(dependency) or False == isinstance(dependency[0], str) or False == isinstance(dependency[1], str):
+            return Response('{}', status=404, mimetype='application/json')
+        if False == config.addDependency(dependency[0], dependency[1]):
+            return Response('{}', status=404, mimetype='application/json')
+
+    airport.Configuration.assignmentUpdate(config)
+    airport.configure(config)
+
+    return Response('{}', status=200, mimetype='application/json')

aman/com/DwdCrawler.py

@@ -19,8 +19,8 @@ from datetime import datetime as dt
 #               - third  element of wind data tuple: wind speed (KT)
 class DwdCrawler():
     def __init__(self):
-        self.updateTime = None
-        self.windData = None
+        self.UpdateTime = None
+        self.WindData = None
 
     def parseGaforAreas(areas : str):
         areas = areas.replace(':', '')
@@ -57,6 +57,9 @@ class DwdCrawler():
             altitude = int(altitude.replace('FL', '')) * 100
         else:
             altitude = int(altitude.replace('FT', ''))
+        if 'VRB' == windData[0]:
+            row = ( altitude, 0, int(windData[1].replace('KT', '')) )
+        else:
             row = ( altitude, int(windData[0]), int(windData[1].replace('KT', '')) )
         table.append(row)
 
@@ -107,7 +110,8 @@ class DwdCrawler():
                 for line in content.splitlines():
                     if '' == line:
                         if 0 != len(windTable):
-                            windInformation.append(( areaIds, windTable ))
+                            for id in areaIds:
+                                windInformation.append([ id, windTable ])
                         areaIds = None
                         windTable = []
                     elif line.startswith('GAFOR-Gebiete'):
@@ -125,8 +129,8 @@ class DwdCrawler():
                     return nextUpdate, windInformation
 
     def receiveWindData(self):
-        self.updateTime = None
-        self.windData = None
+        self.UpdateTime = None
+        self.WindData = None
 
         with urllib.request.urlopen('https://www.dwd.de/DE/fachnutzer/luftfahrt/teaser/luftsportberichte/luftsportberichte_node.html') as site:
             data = site.read().decode('utf-8')
@@ -141,17 +145,18 @@ class DwdCrawler():
                     pages.append('https://www.dwd.de/' + link['href'].split(';')[0])
 
             # receive the wind data
-            self.updateTime = None
-            self.windData = []
+            self.UpdateTime = None
+            self.WindData = {}
             for page in pages:
                 next, wind = self.parseGaforPage(page)
                 if None != next:
-                    if None == self.updateTime or self.updateTime > next:
-                        self.updateTime = next
-                    self.windData.extend(wind)
+                    if None == self.UpdateTime or self.UpdateTime > next:
+                        self.UpdateTime = next
+                    for gafor in wind:
+                        self.WindData[gafor[0]] = gafor[1]
 
             # indicate that new wind data is available
-            if None != self.updateTime:
+            if None != self.UpdateTime:
                 return True
             else:
                 return False

aman/com/Euroscope.py

@@ -1,6 +1,5 @@
 #!/usr/bin/env python
 
-import ctypes
 import glob
 import os
 import sys
@@ -9,63 +8,49 @@ import time
 import zmq
 import zmq.auth
 
-from aman.com import AircraftReport_pb2
+from aman.com import Communication_pb2
 from aman.config.Server import Server
-from threading import Thread, _active
+from threading import Thread
 
-class ReceiverThread(Thread):
-    def __init__(self, socket, aman):
+class ComThread(Thread):
+    def __init__(self, com, aman):
         Thread.__init__(self)
-        self.socket = socket
-        self.aman = aman
+        self.Com = com
+        self.AMAN = aman
 
     def run(self):
         while True:
             try:
-                msg = self.socket.recv(zmq.NOBLOCK)
+                msg = self.Com.Socket.recv(zmq.NOBLOCK)
 
                 # parse the received message
-                report = AircraftReport_pb2.AircraftReport()
+                report = Communication_pb2.AircraftUpdate()
                 report.ParseFromString(msg)
 
-                # try to associate the received aircraft to an airport
-                self.aman.updateAircraftReport(report)
+                # try to associate the received aircrafts to airports
+                for inbound in report.reports:
+                    self.AMAN.updateAircraftReport(inbound)
+
+                # get the sequence of the airport
+                if None != report.airport:
+                    airport = self.AMAN.findAirport(report.airport)
+                    if None != airport:
+                        self.Com.sendSequence(report.airport, airport.inboundSequence(), airport.WeatherModel)
 
             except zmq.ZMQError as error:
                 if zmq.EAGAIN == error.errno:
-                    time.sleep(0.5)
+                    time.sleep(0.1)
                     continue
                 else:
                     return
 
-    def threadId(self):
-        if hasattr(self, '_thread_id'):
-            return self._thread_id
-        for id, thread in _active.items():
-            if thread is self:
-                return id
-
-    def stopThread(self):
-        id = self.threadId()
-        res = ctypes.pythonapi.PyThreadState_SetAsyncExc(id, ctypes.py_object(SystemExit))
-        if 1 < res:
-            ctypes.pythonapi.PyThreadState_SetAsyncExc(id, 0)
-
 # @brief Receives and sends messages to EuroScope plugins
 class Euroscope:
-    def __init__(self):
-        self.context = None
-        self.receiverSocket = None
-        self.receiverThread = None
-        self.notificationSocket = None
-
-    def __del__(self):
-        self.release()
-
-    # @brief Initializes the ZMQ socket
-    # @param[in] config The server configuration
-    def acquire(self, configPath : str, config : Server, aman):
-        self.context = zmq.Context()
+    def __init__(self, configPath : str, config : Server, aman):
+        self.Context = None
+        self.Socket = None
+        self.Thread = None
+        self.Context = zmq.Context()
 
         # find the key directories
         serverKeyPath = os.path.join(os.path.join(configPath, 'keys'), 'server')
@@ -88,34 +73,62 @@ class Euroscope:
         keyPair = zmq.auth.load_certificate(keyPairPath[0])
 
         # initialize the receiver
-        self.receiverSocket = zmq.Socket(self.context, zmq.SUB)
-        self.receiverSocket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
-        self.receiverSocket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
-        self.receiverSocket.setsockopt(zmq.CURVE_SERVER, True)
-        self.receiverSocket.bind('tcp://' + config.Address + ':' + str(config.PortReceiver))
-        self.receiverSocket.setsockopt(zmq.SUBSCRIBE, b'')
-        self.receiverThread = ReceiverThread(self.receiverSocket, aman)
-        self.receiverThread.start()
+        self.Socket = zmq.Socket(self.Context, zmq.REP)
+        self.Socket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
+        self.Socket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
+        self.Socket.setsockopt(zmq.CURVE_SERVER, True)
+        self.Socket.bind('tcp://' + config.Address + ':' + str(config.PortReceiver))
+        #self.Socket.setsockopt(zmq.SUBSCRIBE, b'')
+        self.Thread = ComThread(self, aman)
+        self.Thread.setDaemon(True)
+        self.Thread.start()
         print('Listening to tcp://' + config.Address + ':' + str(config.PortReceiver))
 
-        # initialize the notification
-        self.notificationSocket = zmq.Socket(self.context, zmq.PUB)
-        self.notificationSocket.setsockopt(zmq.CURVE_PUBLICKEY, keyPair[0])
-        self.notificationSocket.setsockopt(zmq.CURVE_SECRETKEY, keyPair[1])
-        self.notificationSocket.setsockopt(zmq.CURVE_SERVER, True)
-        self.notificationSocket.bind('tcp://' + config.Address + ':' + str(config.PortNotification))
-        print('Publishing to tcp://' + config.Address + ':' + str(config.PortNotification))
+    def sendSequence(self, airport : str, inbounds, weather):
+        if None == self.Socket:
+            return
 
-    def release(self):
-        if None != self.receiverThread:
-            self.receiverThread.stopThread()
-            self.receiverThread.join()
-        self.receiverThread = None
+        sequence = Communication_pb2.AircraftSequence()
+        sequence.airport = airport
 
-        if None != self.receiverSocket:
-            self.receiverSocket.close()
-        self.receiverSocket = None
+        # convert the wind data
+        if None != weather.Altitudes:
+            for i in range(0, len(weather.Altitudes)):
+                entry = sequence.windData.add()
+                entry.altitude = int(weather.Altitudes[i])
+                entry.direction = int(weather.Directions[i])
+                entry.speed = int(weather.Windspeeds[i])
 
-        if None != self.notificationSocket:
-            self.notificationSocket.close()
-        self.notificationSocket = None
+        # convert the inbound sequence
+        for inbound in inbounds:
+            entry = sequence.sequence.add()
+            entry.callsign = inbound.Callsign
+            entry.fixed = inbound.FixedSequence
+            if None != inbound.PlannedStar:
+                entry.arrivalRoute = inbound.PlannedStar.Name
+            if None != inbound.PlannedRunway:
+                entry.arrivalRunway = inbound.PlannedRunway.Name
+
+            if None != inbound.PerformanceData:
+                entry.performance.iasAboveFL240 = int(round(inbound.PerformanceData.SpeedAboveFL240))
+                entry.performance.iasAboveFL100 = int(round(inbound.PerformanceData.SpeedAboveFL100))
+                entry.performance.iasBelowFL100 = int(round(inbound.PerformanceData.SpeedBelowFL100))
+                entry.performance.iasApproach = int(round(inbound.PerformanceData.SpeedApproach))
+
+            if None != inbound.PlannedArrivalRoute:
+                for waypoint in inbound.PlannedArrivalRoute:
+                    wp = entry.waypoints.add()
+                    wp.name = waypoint.Waypoint.Name
+                    wp.altitude = int(round(waypoint.Altitude))
+                    wp.indicatedAirspeed = int(round(waypoint.IndicatedAirspeed))
+                    wp.groundSpeed = int(round(waypoint.GroundSpeed))
+
+                    pta = str(waypoint.PTA)
+                    delimiter = pta.find('.')
+                    if -1 == delimiter:
+                        delimiter = pta.find('+')
+
+                    wp.pta = pta[0:delimiter]
+
+        message = sequence.SerializeToString()
+        self.Socket.send(message)

aman/com/Weather.py

@@ -11,46 +11,37 @@ from aman.com.DwdCrawler import DwdCrawler
 import aman.config.Weather
 
 class Weather(Thread):
-    def __init__(self):
+    def __init__(self, config : aman.config.Weather.Weather):
         Thread.__init__(self)
 
-        self.nextUpdate = None
-        self.lastUpdateTried = None
-        self.stopThread = False
-        self.provider = None
-
-    def acquire(self, config : aman.config.Weather.Weather):
-        self.nextUpdate = dt.utcfromtimestamp(int(time.time()))
-        self.lastUpdateTried = None
-        self.stopThread = False
-        self.provider = None
+        self.NextUpdate = dt.utcfromtimestamp(int(time.time()))
+        self.LastUpdateTried = None
+        self.StopThread = False
+        self.Provider = None
 
         if 'DWD' == config.Provider.upper():
-            self.provider = DwdCrawler()
-        else:
+            self.Provider = DwdCrawler()
+        elif 'NONE' != config.Provider.upper():
             sys.stderr.write('Invalid or unknown weather-provider defined')
             sys.exit(-1)
 
+        self.setDaemon(True)
         self.start()
 
-    def release(self):
-        self.stopThread = True
-        self.join()
-
     def currentClock():
         clock = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
         return clock
 
     def run(self):
-        while False == self.stopThread and None != self.provider:
+        while False == self.StopThread and None != self.Provider:
             now = Weather.currentClock()
 
             # check if an update is required
-            if None != self.provider.updateTime and self.provider.updateTime > now:
+            if None != self.Provider.UpdateTime and self.Provider.UpdateTime > now:
                 time.sleep(1)
                 continue
 
-            if None == self.lastUpdateTried or self.lastUpdateTried <= now:
-                if True == self.provider.receiveWindData():
-                    self.nextUpdate = self.provider.updateTime
+            if None == self.LastUpdateTried or self.LastUpdateTried <= now:
+                if True == self.Provider.receiveWindData():
+                    self.NextUpdate = self.Provider.UpdateTime
                     print('Received new wind data')

aman/config/AircraftPerformance.py

@@ -8,7 +8,7 @@ class AircraftPerformance:
     def __init__(self, filepath : str):
         config = configparser.ConfigParser()
         config.read(filepath)
-        self.aircrafts = { }
+        self.Aircrafts = { }
 
         # iterate over all entries
         for key in config:
@@ -17,12 +17,12 @@ class AircraftPerformance:
 
             aircraft = PerformanceData(key)
 
-            aircraft.speedAboveFL240 = config[key]['speedabovefl240']
-            aircraft.rodAboveFL240 = config[key]['rodabovefl240']
-            aircraft.speedAboveFL100 = config[key]['speedabovefl100']
-            aircraft.rodAboveFL100 = config[key]['rodabovefl100']
-            aircraft.speedBelowFL100 = config[key]['speedbelowfl100']
-            aircraft.rodBelowFL100 = config[key]['rodbelowfl100']
-            aircraft.speedApproach = config[key]['speedapproach']
+            aircraft.SpeedAboveFL240 = float(config[key]['speedabovefl240'])
+            aircraft.RodAboveFL240 = float(config[key]['rodabovefl240'])
+            aircraft.SpeedAboveFL100 = float(config[key]['speedabovefl100'])
+            aircraft.RodAboveFL100 = float(config[key]['rodabovefl100'])
+            aircraft.SpeedBelowFL100 = float(config[key]['speedbelowfl100'])
+            aircraft.RodBelowFL100 = float(config[key]['rodbelowfl100'])
+            aircraft.SpeedApproach = float(config[key]['speedapproach'])
 
-            self.aircrafts[aircraft.icao] = aircraft
+            self.Aircrafts[aircraft.Icao] = aircraft

aman/config/Airport.py

@@ -1,11 +1,16 @@
 #!/usr/bin/env python
 
 import configparser
+from datetime import timedelta
 import glob
 import os
 import sys
 
-from formats.SctEseFormat import SctEseFormat
+from aman.config.RHC import RHC
+from aman.config.AirportSequencing import AirportSequencing
+from aman.config.RunwaySequencing import RunwaySequencing, RunwayAssignmentType
+from aman.formats.SctEseFormat import SctEseFormat
+from aman.types.Waypoint import Waypoint
 
 class Airport:
     def findGngData(data, path):
@@ -30,14 +35,282 @@ class Airport:
             return []
         return planning['routes'].split(':')
 
-    def __init__(self, filepath : str, icao : str):
-        self.arrivalRoutes = {}
+    def parseDefaultSequencingConfiguration(self, icao : str, planning):
+        if None == planning.get('activearrivalrunwaydefault'):
+            sys.stderr.write('No "activearrivalrunwaydefault" entry found!')
+            sys.exit(-1)
+        if None == planning.get('activearrivalmodedefault'):
+            sys.stderr.write('No "activearrivalmodedefault" entry found!')
+            sys.exit(-1)
+        if None == planning.get('arrivalspacingdefault'):
+            sys.stderr.write('No "arrivalspacingdefault" entry found!')
+            sys.exit(-1)
+        if not icao in self.GngData.Runways:
+            sys.stderr.write('Unable to find' + icao + 'in the SCT data!')
+            sys.exit(-1)
 
+        # parse the default arrival mode
+        if 'STAGGERED' == planning['activearrivalmodedefault']:
+            staggered = True
+        elif 'IPA' == planning['activearrivalmodedefault']:
+            staggered = False
+        else:
+            sys.stderr.write('Unknown arrival mode in "" found! (STAGGERED or IPA needs to be set)')
+            sys.exit(-1)
+
+        # translate the spacing into a map
+        ident = ''
+        spacings = {}
+        spacingConfig = list(filter(None, planning['arrivalspacingdefault'].split(':')))
+        for i in range(0, len(spacingConfig)):
+            if 0 == i % 2:
+                ident = spacingConfig[i]
+            elif '' != ident:
+                spacings[ident] = int(spacingConfig[i])
+            else:
+                sys.stderr.write('No runway defined in "arrivalspacingdefault"!')
+                sys.exit(-1)
+
+        # create the sequencing data per runway
+        self.DefaultSequencing = AirportSequencing(icao)
+        for ident in list(filter(None, planning['activearrivalrunwaydefault'].split(':'))):
+            if not ident in spacings:
+                sys.stderr.write('Unable to find sequencing data for ' + ident + ' of ' + icao)
+                sys.exit(-1)
+
+            found = False
+            for runway in self.GngData.Runways[icao]:
+                if ident == runway.Name:
+                    sequence = RunwaySequencing(runway)
+                    sequence.Spacing = spacings[ident]
+                    self.DefaultSequencing.activateRunway(sequence)
+                    found = True
+                    break
+
+            if False == found:
+                sys.stderr.write('Unable to find the runway for ' + ident + ' of ' + icao + ' in SCT data!')
+                sys.exit(-1)
+
+        # create the dependencies, if needed
+        if True == staggered:
+            if None == planning.get('runwaydependenciesdefault'):
+                sys.stderr.write('Unable to find the runway dependencies for staggered approaches of ' + icao + '!')
+                sys.exit(-1)
+
+            dependencies = list(filter(None, planning['runwaydependenciesdefault'].split(':')))
+            if 0 != len(dependencies) % 2:
+                sys.stderr.write('No valid set of runway dependencies found!')
+                sys.exit(-1)
+
+            for i in range(0, len(dependencies), 2):
+                self.DefaultSequencing.addDependency(dependencies[i], dependencies[i + 1])
+
+    def parseConstraints(self, planning):
+        self.ArrivalRouteConstraints = {}
+
+        # check if the IAF sequence constraint is defined
+        if 'iafsequence' in planning:
+            self.IafSpacing = float(planning['iafsequence'])
+        else:
+            self.IafSpacing = 10.0
+
+        # parse the arrival constraints
+        for key in planning:
+            if True == key.startswith('constraints'):
+                star = key.replace('constraints', '').upper()
+                if '' != star:
+                    elements = list(filter(None, planning[key].split(':')))
+                    if 3 > len(elements):
+                        sys.stderr.write('Invalid constraint line: ' + key + '=' + planning[key])
+                        sys.exit(-1)
+
+                    waypoints = []
+
+                    # values for the waypoint constraints
+                    waypointName = elements[0]
+                    constraints = [-1, -1]
+                    isBaseTurn = False
+                    isFinalTurn = False
+
+                    index = 1
+                    while index < len(elements):
+                        if 'A' == elements[index] or 'S' == elements[index]:
+                            if index + 1 == len(elements) or False == elements[index + 1].isnumeric():
+                                sys.stderr.write('Invalid constraint line: ' + key + '=' + planning[key])
+                                sys.exit(-1)
+
+                            if 'A' == elements[index]:
+                                constraints[0] = int(elements[index + 1])
+                            else:
+                                constraints[1] = int(elements[index + 1])
+                            index += 1
+                        elif 'B' == elements[index]:
+                            isBaseTurn = True
+                        elif 'F' == elements[index]:
+                            isFinalTurn = True
+                        else:
+                            if False == isBaseTurn and False == isFinalTurn and -1 == constraints[0] and -1 == constraints[1] and '' == waypointName:
+                                sys.stderr.write('Invalid constraint line: ' + key + '=' + planning[key])
+                                sys.exit(-1)
+                            if True == isBaseTurn and True == isFinalTurn:
+                                sys.stderr.write('Invalid constraint line: ' + key + '=' + planning[key])
+                                sys.exit(-1)
+
+                            waypoints.append(Waypoint(name = waypointName, base = isBaseTurn, final = isFinalTurn))
+                            if -1 != constraints[0]:
+                                waypoints[-1].Altitude = constraints[0]
+                            if -1 != constraints[1]:
+                                waypoints[-1].Speed = constraints[1]
+
+                            # reset temporary data
+                            waypointName = elements[index]
+                            constraints = [-1, -1]
+                            isBaseTurn = False
+                            isFinalTurn = False
+
+                        index += 1
+
+                    # check if we have to add the last waypoint
+                    if 0 != len(waypoints) and waypointName != waypoints[-1].Name:
+                        waypoints.append(Waypoint(name = waypointName, base = isBaseTurn, final = isFinalTurn))
+                        if -1 != constraints[0]:
+                            waypoints[-1].Altitude = constraints[0]
+                        if -1 != constraints[1]:
+                            waypoints[-1].Speed = constraints[1]
+
+                    # register the arrival route
+                    self.ArrivalRouteConstraints[star] = waypoints
+
+    def parseAssignment(assignment : str):
+        elements = list(filter(None, assignment.split(':')))
+        retval = {}
+        type = None
+
+        index = 0
+        while index < len(elements):
+            if 0 == index % 2:
+                if 'A' == elements[index]:
+                    type = RunwayAssignmentType.AircraftType
+                elif 'G' == elements[index]:
+                    type = RunwayAssignmentType.GateAssignment
+                else:
+                    sys.stderr.write('Invalid assignment type: ' + elements[index])
+                    sys.exit(-1)
+            else:
+                if None == type:
+                    sys.stderr.write('No assignment type defined')
+                    sys.exit(-1)
+
+                if type not in retval:
+                    retval.setdefault(type, [])
+
+                retval[type].append(elements[index])
+                type = None
+            index += 1
+
+        return retval
+
+    def findRunway(self, icao : str, name : str):
+        for runway in self.GngData.Runways[icao]:
+            if name == runway.Name:
+                return runway
+
+        sys.stderr.write('Unable to find runway ' + name + ' in the sequencing data for ' + icao)
+        raise Exception()
+
+    def updateRunwayAssignment(dictionary, runway, assignments):
+        if runway not in dictionary:
+            dictionary.setdefault(runway, {})
+
+        for key in assignments:
+            if key not in dictionary[runway]:
+                dictionary[runway].setdefault(key, assignments[key])
+            else:
+                dictionary[runway][key].extend(assignments[key])
+
+    def parseOptimization(self, key : str, line : str):
+        star = key.replace('optimization', '').upper()
+
+        # check if the STAR exists
+        found = False
+        for rwy in self.GngData.ArrivalRoutes:
+            for route in self.GngData.ArrivalRoutes[rwy]:
+                if star == route.Name:
+                    found = True
+                    break
+            if True == found:
+                break
+
+        if False == found:
+            sys.stderr.write('Unknown star:' + key)
+            raise Exception()
+
+        elements = line.split(':')
+        if 2 != len(elements):
+            sys.stderr.write('Invalid optimization parameter for ' + key)
+            raise Exception()
+
+        maxTTG = int(elements[0])
+        ttgRatio = float(elements[1])
+
+        return star, maxTTG, ttgRatio
+
+    def updateOptimizationParameters(dictionary, star, maxTTG, ttgRatio):
+        if star not in dictionary:
+            dictionary.setdefault(star, [])
+        dictionary[star] = [ maxTTG, ttgRatio ]
+
+    def parseRunwayAssignment(self, icao : str, planning):
+        self.OptimizationParameters = {}
+        self.RunwayAssignmentsShall = {}
+        self.RunwayAssignmentsShould = {}
+        self.RunwayAssignmentsMay = {}
+        self.MaxDelayMay = timedelta(minutes=10)
+        mayFound = False
+
+        for key in planning:
+            if True == key.startswith('shallassign'):
+                runway = self.findRunway(icao, key.replace('shallassign', '').upper())
+                assignments = Airport.parseAssignment(planning[key])
+                Airport.updateRunwayAssignment(self.RunwayAssignmentsShall, runway, assignments)
+            elif True == key.startswith('shouldassign'):
+                runway = self.findRunway(icao, key.replace('shouldassign', '').upper())
+                assignments = Airport.parseAssignment(planning[key])
+                Airport.updateRunwayAssignment(self.RunwayAssignmentsShould, runway, assignments)
+            elif True == key.startswith('mayassign'):
+                runway = self.findRunway(icao, key.replace('mayassign', '').upper())
+                assignments = Airport.parseAssignment(planning[key])
+                Airport.updateRunwayAssignment(self.RunwayAssignmentsMay, runway, assignments)
+                mayFound = True
+            elif True == key.startswith('optimization'):
+                star, maxTTG, ttgRatio = self.parseOptimization(key, planning[key])
+                Airport.updateOptimizationParameters(self.OptimizationParameters, star, maxTTG, ttgRatio)
+
+
+        # find the max delays
+        if True == mayFound:
+            if 'maxdelaymay' not in planning:
+                sys.stderr.write('maxDelaymay needs to be defined')
+                sys.exit(-1)
+            self.MaxDelayMay = timedelta(minutes=int(planning['maxdelaymay']))
+
+    def parseWebUI(self, webui):
+        self.IafColorization = {}
+
+        for key in webui:
+            if 'iafcolorization' == key:
+                elements = list(filter(None, webui[key].split(':')))
+                for i in range(0, len(elements), 4):
+                    self.IafColorization[elements[i]] = [ int(elements[i + 1]), int(elements[i + 2]), int(elements[i + 3]) ]
+
+    def __init__(self, filepath : str, icao : str):
         config = configparser.ConfigParser()
         config.read(filepath)
 
         dataConfig = None
         planningConfig = None
+        rhcConfig = None
+        webUiConfig = None
 
         # search the required sections
         for key in config:
@@ -45,6 +318,10 @@ class Airport:
                 dataConfig = config['DATA']
             elif 'PLANNING' == key:
                 planningConfig = config['PLANNING']
+            elif 'RHC' == key:
+                rhcConfig = config['RHC']
+            elif 'WEBUI' == key:
+                webUiConfig = config['WEBUI']
 
         # find the GNG-file data
         sctFile, eseFile = Airport.findGngData(dataConfig, os.path.dirname(filepath))
@@ -61,6 +338,40 @@ class Airport:
             sys.stderr.write('No valid planning configuration found')
             sys.exit(-1)
 
+        # parse the RHC information
+        if None == rhcConfig:
+            sys.stderr.write('No RHC configuration found')
+            sys.exit(-1)
+        self.RecedingHorizonControl = RHC(rhcConfig)
+
+        # check if thw WebUI information is available
+        if None == webUiConfig:
+            sys.stderr.write('No WEBUI configuration found')
+            sys.exit(-1)
+
         # parse the GNG data
         print('Used GNG-Data: ' + eseFile)
-        self.gngData = SctEseFormat(sctFile, eseFile, icao, requiredArrivalRoutes)
+        self.GngData = SctEseFormat(sctFile, eseFile, icao, requiredArrivalRoutes)
+
+        # get the GAFOR id
+        if None == dataConfig.get('gaforid'):
+            sys.stderr.write('No GAFOR-ID found!')
+            sys.exit(-1)
+        self.GaforId = int(dataConfig['gaforid'])
+
+        # get the default sequencing data
+        self.parseDefaultSequencingConfiguration(icao, planningConfig)
+        self.parseConstraints(planningConfig)
+        self.parseRunwayAssignment(icao, planningConfig)
+        self.parseWebUI(webUiConfig)
+        self.assignmentUpdate(self.DefaultSequencing)
+
+    def assignmentUpdate(self, sequenceConfig : AirportSequencing):
+        # initializes the default sequence data
+        for active in sequenceConfig.ActiveArrivalRunways:
+            if active.Runway in self.RunwayAssignmentsShall:
+                active.ShallAssignments = self.RunwayAssignmentsShall[active.Runway]
+            if active.Runway in self.RunwayAssignmentsShould:
+                active.ShouldAssignments = self.RunwayAssignmentsShould[active.Runway]
+            if active.Runway in self.RunwayAssignmentsMay:
+                active.MayAssignments = self.RunwayAssignmentsMay[active.Runway]

aman/config/AirportSequencing.py

@@ -0,0 +1,101 @@
+#!/usr/bin/env python
+
+from datetime import datetime as dt
+
+import pytz
+import time
+
+from aman.config.RunwaySequencing import RunwaySequencing
+
+class AirportSequencing:
+    def __init__(self, icao : str):
+        self.Airport = icao
+        self.ActiveArrivalRunways = []
+        self.RunwayDependencies = []
+        self.LastUpdateTimestamp = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
+        self.UseShallShouldMay = True
+
+    def clearData(self):
+        self.ActiveArrivalRunways.clear()
+        self.RunwayDependencies.clear()
+
+    def activateRunway(self, runway : RunwaySequencing):
+        for active in self.ActiveArrivalRunways:
+            if active.Runway.Name == runway.Runway.Name:
+                self.ActiveArrivalRunways[runway.Runway.Name] = runway
+                return
+        self.ActiveArrivalRunways.append(runway)
+
+    def runway(self, index : int):
+        if index >= len(self.ActiveArrivalRunways):
+            return None
+        return self.ActiveArrivalRunways[index].Runway
+
+    def runwayIndex(self, identifier : str):
+        for i in range(0, len(self.ActiveArrivalRunways)):
+            if self.ActiveArrivalRunways[i].Runway.Name == identifier:
+                return i
+        return -1
+
+    def deactivateRunway(self, identifier : str):
+        index = self.runwayIndex(identifier)
+        if 0 <= index:
+            self.ActiveArrivalRunways.pop(index)
+
+            # remove the dependencies
+            for i in range(self.RunwayDependencies - 1, -1, -1):
+                if index == self.RunwayDependencies[i][0] or index == self.RunwayDependencies[i][1]:
+                    self.RunwayDependencies.pop(i)
+
+    def addDependency(self, first : str, second : str):
+        idxFirst = self.runwayIndex(first)
+        idxSecond = self.runwayIndex(second)
+        if 0 > idxFirst or 0 > idxSecond:
+            return False
+
+        foundFirst = False
+        foundSecond = False
+        for dependency in self.RunwayDependencies:
+            if idxFirst == dependency[0] and idxSecond == dependency[1]:
+                foundFirst = True
+            elif idxFirst == dependency[1] and idxSecond == dependency[0]:
+                foundSecond = True
+
+        if False == foundFirst:
+            self.RunwayDependencies.append([ idxFirst, idxSecond ])
+        if False == foundSecond:
+            self.RunwayDependencies.append([ idxSecond, idxFirst ])
+
+        return True
+
+    def removeDependency(self, first : str, second : str):
+        idxFirst = self.runwayIndex(first)
+        idxSecond = self.runwayIndex(second)
+        if 0 > idxFirst or 0 > idxSecond:
+            return
+
+        for i in range(self.RunwayDependencies - 1, -1, -1):
+            dependency = self.RunwayDependencies[i]
+
+            # check for all the pairs
+            if idxFirst == dependency[0] and idxSecond == dependency[1]:
+                self.RunwayDependencies.pop(i)
+            elif idxSecond == dependency[0] and idxSecond == dependency[0]:
+                self.RunwayDependencies.pop(i)
+
+    def findRunway(self, identifier : str):
+        for runway in self.ActiveArrivalRunways:
+            if runway.Runway.Name == identifier:
+                return runway
+        return None
+
+    def findDependentRunways(self, identifier : str):
+        # runway is unknown
+        index = self.runwayIndex(identifier)
+        if 0 > index:
+            return []
+
+        # search the dependency pair
+        dependencies = [self.ActiveArrivalRunways[self.RunwayDependencies[i][1]] for i in range(0, len(self.RunwayDependencies)) if index == self.RunwayDependencies[i][0]]
+
+        return dependencies

aman/config/RHC.py

@@ -0,0 +1,41 @@
+#!/usr/bin/env python
+
+from datetime import timedelta
+
+import configparser;
+import sys
+
+class RHC():
+    def __init__(self, config : configparser.ConfigParser):
+        # latest scheduling fix in minutes
+        self.FixedBeforeArrival = None
+        # number of seconds per window
+        self.WindowSize = None
+        # number of horizon windows for optimization iteration
+        self.WindowOverlap = None
+        # distance until IAF to add an aircraft to the optimization
+        self.MaximumIafDistance = None
+
+        # search the required sections
+        for key in config:
+            if 'windowsize' == key:
+                self.WindowSize = int(config['windowsize'])
+            elif 'windowoverlap' == key:
+                self.WindowOverlap = int(config['windowoverlap'])
+            elif 'fixedbeforearrival' == key:
+                self.FixedBeforeArrival = timedelta(minutes = int(config['fixedbeforearrival']))
+            elif 'maximumiafdistance' == key:
+                self.MaximumIafDistance = int(config['maximumiafdistance'])
+
+        if self.WindowSize is None:
+            sys.stderr.write('No window size configuration found!')
+            sys.exit(-1)
+        if self.WindowOverlap is None:
+            sys.stderr.write('No window overlap configuration found!')
+            sys.exit(-1)
+        if self.FixedBeforeArrival is None:
+            sys.stderr.write('No fixed before IAF configuration found!')
+            sys.exit(-1)
+        if self.MaximumIafDistance is None:
+            sys.stderr.write('No maximum IAF distance found!')
+            sys.exit(-1)

aman/config/RunwaySequencing.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python
+
+from enum import Enum
+
+from aman.types.Runway import Runway
+
+class RunwayAssignmentType(Enum):
+    AircraftType = 1
+    GateAssignment = 2
+
+class RunwaySequencing:
+    def __init__(self, runway : Runway):
+        self.Runway = runway
+        self.Spacing = 3
+        self.ShallAssignments = {}
+        self.ShouldAssignments = {}
+        self.MayAssignments = {}

aman/config/Server.py

@@ -8,6 +8,9 @@ class Server():
         self.Address = None
         self.PortReceiver = None
         self.PortNotification = None
+        self.WebUiUrl = None
+        self.WebUiSequenceNotification = None
+        self.WebUiConfigurationReceiver = None
 
         # search the required sections
         for key in config:

aman/config/Weather.py

@@ -6,8 +6,6 @@ import sys
 class Weather():
     def __init__(self, config : configparser.ConfigParser):
         self.Provider = None
-        self.PortReceiver = None
-        self.PortNotification = None
 
         # search the required sections
         for key in config:

aman/formats/SctEseFormat.py

@@ -1,8 +1,10 @@
 #!/usr/bin/env python
 
+import copy
 import sys
 
 from aman.types.ArrivalRoute import ArrivalRoute
+from aman.types.Runway import Runway
 from aman.types.Waypoint import Waypoint
 
 class SctEseFormat:
@@ -30,11 +32,22 @@ class SctEseFormat:
         if len(split) <= longitudeIdx:
             sys.stderr.write('Invalid waypoint format: ' + waypoint)
             sys.exit(-1)
-        return Waypoint(split[nameIdx], Waypoint.dms2dd(split[latitudeIdx]), Waypoint.dms2dd(split[longitudeIdx]))
+        return Waypoint(name = split[nameIdx], latitude = split[latitudeIdx], longitude = split[longitudeIdx])
 
-    def extractWaypoints(self, sctFilepath : str):
+    def parseRunway(runway : str):
+        split = list(filter(None, runway.split(' ')))
+        if 9 != len(split) or '' == split[8]:
+            return None, None, None
+
+        waypoint0 = Waypoint(name = split[0], latitude = split[4], longitude = split[5])
+        waypoint1 = Waypoint(name = split[1], latitude = split[6], longitude = split[7])
+
+        return split[8], Runway(waypoint0, waypoint1), Runway(waypoint1, waypoint0)
+
+    def extractSctInformation(self, sctFilepath : str):
         config = SctEseFormat.readFile(sctFilepath)
         foundAirports = False
+        foundRunways = False
         foundVOR = False
         foundNDB = False
         foundFix = False
@@ -48,6 +61,8 @@ class SctEseFormat:
                 foundFix = True
             elif 'AIRPORT' == key:
                 foundAirports = True
+            elif 'RUNWAY' == key:
+                foundRunways = True
 
         if False == foundVOR:
             sys.stderr.write('Unable to find VOR-entries in the sector file')
@@ -61,27 +76,39 @@ class SctEseFormat:
         if False == foundAirports:
             sys.stderr.write('Unable to find AIRPORT-entries in the sector file')
             sys.exit(-1)
+        if False == foundRunways:
+            sys.stderr.write('Unable to find RUNWAY-entries in the sector file')
+            sys.exit(-1)
 
         # extract all waypoints
         for waypoint in config['VOR']:
             waypoint = SctEseFormat.parseWaypoint(waypoint, 0, 2, 3)
-            self.waypoints.setdefault(waypoint.name, []).append(waypoint)
+            self.Waypoints.setdefault(waypoint.Name, []).append(waypoint)
         for waypoint in config['NDB']:
             waypoint = SctEseFormat.parseWaypoint(waypoint, 0, 1, 2)
-            self.waypoints.setdefault(waypoint.name, []).append(waypoint)
+            self.Waypoints.setdefault(waypoint.Name, []).append(waypoint)
         for waypoint in config['FIXES']:
             waypoint = SctEseFormat.parseWaypoint(waypoint, 0, 1, 2)
-            self.waypoints.setdefault(waypoint.name, []).append(waypoint)
+            self.Waypoints.setdefault(waypoint.Name, []).append(waypoint)
 
         # extract the airports
         for airport in config['AIRPORT']:
             airport  = SctEseFormat.parseWaypoint(airport, 0, 2, 3)
-            self.airports.setdefault(airport.name, []).append(airport)
+            self.Airports.setdefault(airport.Name, []).append(airport)
+
+        # extract the runways
+        for runway in config['RUNWAY']:
+            airport, runway0, runway1 = SctEseFormat.parseRunway(runway)
+            if None != airport:
+                if not airport in self.Runways:
+                    self.Runways.setdefault(airport, [])
+                self.Runways[airport].append(runway0)
+                self.Runways[airport].append(runway1)
 
     def parseArrivalRoute(self, route : str, airport : Waypoint):
         # split the route and validate that it is a STAR for the airport
         split = route.split(':')
-        if 5 != len(split) or 'STAR' != split[0] or split[1] != airport.name:
+        if 5 != len(split) or 'STAR' != split[0] or split[1] != airport.Name:
             return None
 
         # find all waypoints
@@ -89,7 +116,7 @@ class SctEseFormat:
         route = list(filter(None, split[4].split(' ')))
         for waypoint in route:
             # find the waypoint in the route
-            coordinates = self.waypoints[waypoint]
+            coordinates = self.Waypoints[waypoint]
             # no waypoint with this name defined
             if None == coordinates:
                 sys.stderr.write('Unable to find waypoint ' + waypoint)
@@ -111,10 +138,10 @@ class SctEseFormat:
                     sys.stderr.write('Unable to find a close waypoint for ' + waypoint)
                     sys.exit(-1)
 
-                waypoints.append(nearest)
+                waypoints.append(copy.deepcopy(nearest))
             # extend the list of waypoints
             else:
-                waypoints.append(coordinates[0])
+                waypoints.append(copy.deepcopy(coordinates[0]))
 
         # create the arrival route
         return ArrivalRoute(split[3], split[2], waypoints)
@@ -124,10 +151,10 @@ class SctEseFormat:
         foundSidsStars = False
 
         # search the airport in the extracted list
-        if not airport in self.airports:
-            sys.stderr.write(airport + 'in self.airports', 'Unable to find the requested airport')
+        if not airport in self.Airports:
+            sys.stderr.write('Unable to find the requested airport')
             sys.exit(-1)
-        airport = self.airports[airport][0]
+        airport = self.Airports[airport][0]
 
         for key in config:
             if 'SIDSSTARS' == key:
@@ -140,13 +167,14 @@ class SctEseFormat:
         # parse all arrival routes
         for line in config['SIDSSTARS']:
             route = self.parseArrivalRoute(line, airport)
-            if None != route and route.name in allowedRoutes:
-                self.arrivalRoutes.setdefault(route.runway, []).append(route)
+            if None != route and route.Name in allowedRoutes:
+                self.ArrivalRoutes.setdefault(route.Runway, []).append(route)
 
     def __init__(self, sctFilepath : str, eseFilepath : str, airport : str, allowedRoutes : list):
-        self.arrivalRoutes = {}
-        self.waypoints = {}
-        self.airports = {}
+        self.ArrivalRoutes = {}
+        self.Waypoints = {}
+        self.Airports = {}
+        self.Runways = {}
 
-        self.extractWaypoints(sctFilepath)
+        self.extractSctInformation(sctFilepath)
         self.extractArrivalRoutes(eseFilepath, airport, allowedRoutes)

aman/sys/RecedingHorizonControl.py

@@ -0,0 +1,256 @@
+#!/usr/bin/env python
+
+import copy
+import time
+
+from datetime import datetime as dt
+from datetime import timedelta
+
+import pytz
+
+from aman.config.Airport import Airport
+from aman.config.AirportSequencing import AirportSequencing
+from aman.config.RHC import RHC
+from aman.sys.aco.Node import Node
+from aman.sys.RecedingHorizonWindow import RecedingHorizonWindow
+from aman.types.Inbound import Inbound
+
+class RecedingHorizonControl:
+    def __init__(self, config : RHC):
+        self.Windows = []
+        # contains the current index and the missed update counter
+        self.AssignedWindow = {}
+        self.Configuration = config
+        self.FreezedIndex = int(self.Configuration.FixedBeforeArrival.seconds / self.Configuration.WindowSize)
+
+    def insertInWindow(self, inbound : Inbound, usePTA : bool):
+        if False == usePTA:
+            referenceTime = inbound.EnrouteArrivalTime
+        else:
+            referenceTime = inbound.PlannedArrivalTime
+
+        inserted = False
+        for i in range(0, len(self.Windows)):
+            window = self.Windows[i]
+
+            # find the correct window
+            if window.StartTime <= referenceTime and window.EndTime > referenceTime:
+                self.AssignedWindow[inbound.Callsign] = [ i, 0 ]
+                inbound.FixedSequence = i < self.FreezedIndex
+                if True == inbound.FixedSequence and None == inbound.PlannedArrivalTime:
+                    inbound.PlannedArrivalTime = inbound.EnrouteArrivalTime
+                window.insert(inbound)
+                inserted = True
+                break
+
+        # create the new window
+        if False == inserted:
+            if 0 != len(self.Windows):
+                lastWindowTime = self.Windows[-1].EndTime
+            else:
+                lastWindowTime = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
+            timestep = timedelta(seconds = self.Configuration.WindowSize)
+
+            while True:
+                self.Windows.append(RecedingHorizonWindow(lastWindowTime, lastWindowTime + timestep))
+                if self.Windows[-1].EndTime > referenceTime:
+                    window = self.Windows[-1]
+                    window.insert(inbound)
+
+                    self.AssignedWindow[inbound.Callsign] = [ len(self.Windows) - 1, 0 ]
+                    inbound.FixedSequence = len(self.Windows) < self.FreezedIndex
+                    if True == inbound.FixedSequence and None == inbound.PlannedArrivalTime:
+                        inbound.PlannedArrivalTime = inbound.EnrouteArrivalTime
+                    break
+                lastWindowTime = self.Windows[-1].EndTime
+
+        window.Inbounds.sort(key = lambda x: x.PlannedArrivalTime if None != x.PlannedArrivalTime else x.EnrouteArrivalTime)
+
+    def updateReport(self, inbound : Inbound):
+        # check if we need to update
+        if inbound.Callsign in self.AssignedWindow:
+            index = self.AssignedWindow[inbound.Callsign][0]
+            self.AssignedWindow[inbound.Callsign][1] = 0
+
+            plannedInbound = self.Windows[index].inbound(inbound.Callsign)
+            plannedInbound.Report = inbound.Report
+            plannedInbound.ReportTime = inbound.ReportTime
+            plannedInbound.CurrentPosition = inbound.CurrentPosition
+            plannedInbound.RequestedRunway = inbound.RequestedRunway
+            # ingore fixed updates
+            if True == plannedInbound.FixedSequence or index <= self.FreezedIndex:
+                plannedInbound.FixedSequence = True
+                return
+            plannedInbound.WTC = inbound.WTC
+
+            # check if we need to update the inbound
+            if None == plannedInbound.PlannedStar:
+                reference = inbound.EnrouteArrivalTime
+                if plannedInbound.EnrouteArrivalTime > reference:
+                    reference = plannedInbound.EnrouteArrivalTime
+
+                if reference < self.Windows[index].StartTime or reference >= self.Windows[index].EndTime:
+                    self.Windows[index].remove(inbound.Callsign)
+                    self.AssignedWindow.pop(inbound.Callsign)
+                    inbound.EnrouteArrivalTime = reference
+                    self.updateReport(inbound)
+                else:
+                    plannedInbound.EnrouteArrivalTime = reference
+                    self.Windows[index].Inbounds.sort(key = lambda x: x.PlannedArrivalTime if None != x.PlannedArrivalTime else x.EnrouteArrivalTime)
+        else:
+            self.insertInWindow(inbound, False)
+
+    def resequenceInbound(self, inbound : Inbound):
+        index = self.AssignedWindow[inbound.Callsign][0]
+        sequenced = self.Windows[index].inbound(inbound.Callsign)
+        if None == sequenced:
+            return
+
+        # resynchronized the planned information
+        sequenced.PlannedRunway = inbound.PlannedRunway
+        sequenced.PlannedStar = inbound.PlannedStar
+        sequenced.PlannedArrivalRoute = inbound.PlannedArrivalRoute
+        sequenced.PlannedArrivalTime = inbound.PlannedArrivalTime
+        sequenced.InitialArrivalTime = inbound.InitialArrivalTime
+        sequenced.PlannedTrackmiles = inbound.PlannedTrackmiles
+        sequenced.AssignmentMode = inbound.AssignmentMode
+        sequenced.ExpectedRunway = inbound.ExpectedRunway
+        sequenced.HasValidSequence = True
+
+        # resort the inbound
+        if sequenced.PlannedArrivalTime < self.Windows[index].StartTime or sequenced.PlannedArrivalTime >= self.Windows[index].EndTime:
+            self.Windows[index].remove(sequenced.Callsign)
+            self.AssignedWindow.pop(sequenced.Callsign)
+            self.insertInWindow(sequenced, True)
+        else:
+            sequenced.FixedSequence = index < self.FreezedIndex
+            self.Windows[index].Inbounds.sort(key = lambda x: x.PlannedArrivalTime if None != x.PlannedArrivalTime else x.EnrouteArrivalTime)
+
+    def latestFixedInbounds(self, configuration : Airport, sequenceConfiguration : AirportSequencing):
+        if 0 == len(self.Windows):
+            return None, None
+
+        # create the runway tree
+        runwayInbounds = {}
+        for runway in sequenceConfiguration.ActiveArrivalRunways:
+            runwayInbounds[runway.Runway.Name] = None
+
+        # create the IAF tree
+        iafInbounds = {}
+        for star in configuration.ArrivalRouteConstraints:
+            altitude = configuration.ArrivalRouteConstraints[star][0].Altitude
+            iaf = configuration.ArrivalRouteConstraints[star][0].Name
+
+            if iaf not in iafInbounds:
+                iafInbounds[iaf] = { altitude : None }
+            elif altitude not in iafInbounds[iaf]:
+                iafInbounds[iaf][altitude] = None
+
+        # associate the inbounds to the runways and the IAFs
+        for i in range(min(self.FreezedIndex, len(self.Windows)), -1, -1):
+            for inbound in self.Windows[i].Inbounds:
+                if None == inbound.PlannedRunway or None == inbound.PlannedArrivalRoute:
+                    continue
+
+                node = Node(inbound, None, None, None, None)
+
+                if inbound.PlannedRunway.Name in runwayInbounds:
+                    if None == runwayInbounds[inbound.PlannedRunway.Name] or runwayInbounds[inbound.PlannedRunway.Name].Inbound.PlannedArrivalTime < node.Inbound.PlannedArrivalTime:
+                        runwayInbounds[inbound.PlannedRunway.Name] = node
+
+                if inbound.PlannedArrivalRoute[0].Waypoint.Name in iafInbounds:
+                    delta = 100000.0
+                    targetLevel = None
+                    for level in iafInbounds[inbound.PlannedArrivalRoute[0].Waypoint.Name]:
+                        difference = abs(level - inbound.PlannedArrivalRoute[0].Altitude)
+                        if difference < delta:
+                            delta = difference
+                            targetLevel = level
+
+                    if None == iafInbounds[inbound.PlannedArrivalRoute[0].Waypoint.Name][targetLevel]:
+                        iafInbounds[inbound.PlannedArrivalRoute[0].Waypoint.Name][targetLevel] = node
+                    elif iafInbounds[inbound.PlannedArrivalRoute[0].Waypoint.Name][targetLevel].Inbound.PlannedArrivalTime < node.Inbound.PlannedArrivalTime:
+                        iafInbounds[inbound.PlannedArrivalRoute[0].Waypoint.Name][targetLevel] = node
+
+        return runwayInbounds, iafInbounds
+
+    def optimizationRelevantInbounds(self):
+        if 0 == len(self.Windows):
+            return None, None
+
+        inbounds = []
+        if self.FreezedIndex + 1 >= len(self.Windows):
+            earliestArrivalTime = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
+            earliestArrivalTime += self.Configuration.FixedBeforeArrival
+        else:
+            earliestArrivalTime = self.Windows[self.FreezedIndex + 1].StartTime
+
+        # check if we have a reconnect in the freezed blocks (VATSIM specific behavior)
+        for i in range(0, min(len(self.Windows), self.FreezedIndex + 1)):
+            for inbound in self.Windows[i].Inbounds:
+                if False == inbound.HasValidSequence:
+                    inbounds.sort(key = lambda x: x.PlannedArrivalTime if None != x.PlannedArrivalTime else x.EnrouteArrivalTime)
+                    inbounds.append(copy.deepcopy(inbound))
+
+        # no new inbounds
+        if len(self.Windows) <= self.FreezedIndex + 1:
+            if 0 == len(inbounds):
+                return None, None
+            else:
+                return inbounds, earliestArrivalTime
+
+        # check the overlapping windows
+        for i in range(self.FreezedIndex + 1, len(self.Windows)):
+            for inbound in self.Windows[i].Inbounds:
+                inbounds.append(copy.deepcopy(inbound))
+
+            if 20 <= len(inbounds):
+                break
+
+        # check if we found relevant inbounds
+        if 0 != len(inbounds):
+            inbounds.sort(key = lambda x: x.PlannedArrivalTime if None != x.PlannedArrivalTime else x.EnrouteArrivalTime)
+            return inbounds, earliestArrivalTime
+        else:
+            return None, None
+
+    def sequence(self):
+        inbounds = []
+
+        for i in range(0, len(self.Windows)):
+            for inbound in self.Windows[i].Inbounds:
+                if True == inbound.HasValidSequence:
+                    inbounds.append(inbound)
+
+        return inbounds
+
+    def cleanupWindows(self):
+        currentUtc = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
+        offsetCorrection = 0
+
+        # delete the non-required windows
+        while 0 != len(self.Windows) and currentUtc > self.Windows[0].EndTime:
+            # cleanup the association table
+            for inbound in self.Windows[0].Inbounds:
+                self.AssignedWindow.pop(inbound.Callsign)
+
+            offsetCorrection += 1
+            self.Windows.pop(0)
+
+        # correct the association table
+        if 0 != offsetCorrection:
+            for callsign in self.AssignedWindow:
+                self.AssignedWindow[callsign][0] -= offsetCorrection
+                if self.AssignedWindow[callsign][0] <= self.FreezedIndex:
+                    self.Windows[self.AssignedWindow[callsign][0]].inbound(callsign).FixedSequence = True
+
+        # delete the non-updated aircrafts and increase the missed-counter for later runs
+        callsigns = []
+        for callsign in self.AssignedWindow:
+            if 2 < self.AssignedWindow[callsign][1]:
+                self.Windows[self.AssignedWindow[callsign][0]].remove(callsign)
+                callsigns.append(callsign)
+            self.AssignedWindow[callsign][1] += 1
+
+        for callsign in callsigns:
+            self.AssignedWindow.pop(callsign)

aman/sys/RecedingHorizonWindow.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+
+from aman.types.Inbound import Inbound
+
+class RecedingHorizonWindow:
+    def __init__(self, startTime, endTime):
+        self.StartTime = startTime
+        self.EndTime = endTime
+        self.Inbounds = []
+
+    def isInWindow(self, inbound : Inbound):
+        for report in self.Inbounds:
+            if report.Callsign == inbound.Callsign:
+                return True
+        return False
+
+    def inbound(self, callsign : str):
+        for report in self.Inbounds:
+            if report.Callsign == callsign:
+                return report
+        return None
+
+    def insert(self, inbound : Inbound):
+        for i in range(0, len(self.Inbounds)):
+            if self.Inbounds[i].Callsign == inbound.Callsign:
+                return
+        self.Inbounds.append(inbound)
+
+    def remove(self, callsign : str):
+        for i in range(0, len(self.Inbounds)):
+            if self.Inbounds[i].Callsign == callsign:
+                self.Inbounds.pop(i)
+                return

aman/sys/WeatherModel.py

@@ -7,13 +7,16 @@ import scipy.interpolate
 
 class WeatherModel:
     def __init__(self, gaforId, weather : Weather):
-        self.gafor = gaforId
-        self.weather = weather
-        self.windDirectionModel = None
-        self.windSpeedModel = None
-        self.lastWeatherUpdate = None
-        self.minimumAltitude = 1000000
-        self.maximumAltitude = -1
+        self.Gafor = gaforId
+        self.Weather = weather
+        self.Altitudes = None
+        self.Directions = None
+        self.Windspeeds = None
+        self.WindDirectionModel = None
+        self.WindSpeedModel = None
+        self.LastWeatherUpdate = None
+        self.MinimumAltitude = 1000000
+        self.MaximumAltitude = -1
 
         # create the density interpolation model
         # the density model is based on https://aerotoolbox.com/atmcalc/
@@ -95,54 +98,87 @@ class WeatherModel:
         return ias * math.sqrt(1.225 / self.densityModel(altitude).item())
 
     def updateWindModel(self):
-        if None == self.lastWeatherUpdate or self.lastWeatherUpdate != self.weather.provider.updateTime:
-            self.lastWeatherUpdate = self.weather.provider.updateTime
+        if None == self.Weather or None == self.Weather.Provider:
+            return
 
-            self.minimumAltitude = 1000000
-            self.maximumAltitude = -1
-            self.windDirectionModel = None
-            self.windSpeedModel = None
+        if None == self.LastWeatherUpdate or self.LastWeatherUpdate != self.Weather.Provider.UpdateTime:
+            self.MinimumAltitude = 1000000
+            self.MaximumAltitude = -1
+            self.WindDirectionModel = None
+            self.WindSpeedModel = None
+            self.Altitudes = None
+            self.Directions = None
+            self.Windspeeds = None
 
-            if None != self.weather.provider.windData and self.gafor in self.weather.provider.windData:
-                altitudes = []
-                directions = []
-                speeds = []
+            if None != self.Weather.Provider.WindData and self.Gafor in self.Weather.Provider.WindData:
+                self.Altitudes = []
+                self.Directions = []
+                self.Windspeeds = []
 
                 # collect the data for the wind model
-                for level in self.weather.provider.windData[self.gafor]:
-                    altitudes.append(level[0])
-                    directions.append(level[1])
-                    speeds.append(level[2])
+                for level in self.Weather.Provider.WindData[self.Gafor]:
+                    self.Altitudes.append(level[0])
+                    self.Directions.append(level[1])
+                    self.Windspeeds.append(level[2])
 
                     # define the thresholds for later boundary checks
-                    if self.minimumAltitude > level[0]:
-                        self.minimumAltitude = level[0]
-                    if self.maximumAltitude < level[0]:
-                        self.maximumAltitude = level[0]
+                    if self.MinimumAltitude > level[0]:
+                        self.MinimumAltitude = level[0]
+                    if self.MaximumAltitude < level[0]:
+                        self.MaximumAltitude = level[0]
 
                 # calculate the models
-                if 1 < len(altitudes):
-                    self.windDirectionModel = scipy.interpolate.interp1d(altitudes, directions)
-                    self.windSpeedModel = scipy.interpolate.interp1d(altitudes, speeds)
+                if 1 < len(self.Altitudes):
+                    self.WindDirectionModel = scipy.interpolate.interp1d(self.Altitudes, self.Directions)
+                    self.WindSpeedModel = scipy.interpolate.interp1d(self.Altitudes, self.Windspeeds)
+                    self.LastWeatherUpdate = self.Weather.Provider.UpdateTime
+            else:
+                self.LastWeatherUpdate = None
 
-    def calculateGS(self, altitude : int, ias : int, heading : int):
+    def interpolateWindData(self, altitude : int):
         self.updateWindModel()
-        tas = self.calculateTAS(altitude, ias)
 
-        # initialize the wind data
-        if None != self.windDirectionModel and None != self.windSpeedModel:
+        # initialized the wind data
+        if None != self.WindDirectionModel and None != self.WindSpeedModel:
             direction = 0.0
             speed = 0.0
-            if None != self.windSpeedModel and None != self.windDirectionModel:
-                if self.maximumAltitude <= altitude:
-                    altitude = self.maximumAltitude - 1
-                if self.minimumAltitude >= altitude:
-                    altitude = self.minimumAltitude + 1
-                direction = self.windDirectionModel(altitude).item()
-                speed = self.windSpeedModel(altitude).item()
+            if None != self.WindSpeedModel and None != self.WindDirectionModel:
+                if self.MaximumAltitude <= altitude:
+                    altitude = self.MaximumAltitude - 1
+                if self.MinimumAltitude >= altitude:
+                    altitude = self.MinimumAltitude + 1
+                direction = self.WindDirectionModel(altitude).item()
+                speed = self.WindSpeedModel(altitude).item()
         else:
             speed = 0
             direction = 0
 
-        # calculate the ground speed based on the headwind component
+        return speed, direction
+
+    def calculateGS(self, altitude : int, ias : int, heading : int):
+        speed, direction = self.interpolateWindData(altitude)
+        tas = self.calculateTAS(altitude, ias)
         return tas + speed * math.cos(math.radians(direction) - math.radians(heading))
+
+    def convertGSToTAS(self, altitude : int, gs : int, heading : int):
+        speed, direction = self.interpolateWindData(altitude)
+        return gs - speed * math.cos(math.radians(direction) - math.radians(heading))
+
+    def estimateCourse(self, altitude : int, gs : int, heading : int):
+        tas = self.convertGSToTAS(altitude, gs, heading)
+        speed, direction = self.interpolateWindData(altitude)
+
+        aca = heading - direction
+        wca = speed * aca / tas
+
+        if 0 <= aca:
+            course = heading + wca
+        else:
+            course = heading - wca
+
+        while 0 > course:
+            course += 360
+        while 360 < course:
+            course -= 360
+
+        return course

aman/sys/Worker.py

@@ -1,53 +1,140 @@
 #!/usr/bin/env python
 
 from threading import Thread, Lock
+import sys
 import time
 
+from aman.com import Weather
+from aman.com.Euroscope import Euroscope
 from aman.config.Airport import Airport
+from aman.config.AirportSequencing import AirportSequencing
+from aman.sys.aco.Colony import Colony
+from aman.sys.aco.Configuration import Configuration
+from aman.sys.aco.Node import Node
+from aman.sys.WeatherModel import WeatherModel
+from aman.sys.RecedingHorizonControl import RecedingHorizonControl
+from aman.types.Inbound import Inbound
+from aman.types.PerformanceData import PerformanceData
 
 class Worker(Thread):
-    def __init__(self):
+    def __init__(self, icao : str, configuration : Airport, weather : Weather,
+                 performance : PerformanceData, euroscope : Euroscope):
         Thread.__init__(self)
-        self.stopThread = None
-        self.icao = None
-        self.configuration = None
-        self.arrivalRoutes = None
-        self.updateLock = None
-        self.reportQueue = {}
+        self.StopThread = None
+        self.Icao = icao
+        self.Configuration = configuration
+        self.SequencingConfiguration = configuration.DefaultSequencing
+        self.PerformanceData = performance
+        self.UpdateLock = Lock()
+        self.ReportQueue = {}
+        if None != weather:
+            self.WeatherModel = WeatherModel(configuration.GaforId, weather)
+        else:
+            self.WeatherModel = WeatherModel(0, None)
+        self.RecedingHorizonControl = RecedingHorizonControl(configuration.RecedingHorizonControl)
+        self.Euroscope = euroscope
 
-    def __del__(self):
-        self.release()
+        # merge the constraint information with the GNG information
+        for runway in self.Configuration.GngData.ArrivalRoutes:
+            for star in self.Configuration.GngData.ArrivalRoutes[runway]:
+                for name in self.Configuration.ArrivalRouteConstraints:
+                    if name == star.Name:
+                        for constraint in self.Configuration.ArrivalRouteConstraints[name]:
+                            foundWaypoint = False
 
-    def acquire(self, icao : str, configuration : Airport):
-        self.stopThread = None
-        self.icao = icao
-        self.configuration = configuration
-        self.arrivalRoutes = configuration.gngData.arrivalRoutes
-        self.updateLock = Lock()
-        self.reportQueue = {}
+                            for waypoint in star.Route:
+                                if constraint.Name == waypoint.Name:
+                                    waypoint.Altitude = constraint.Altitude
+                                    waypoint.Speed = constraint.Speed
+                                    waypoint.BaseTurn = constraint.BaseTurn
+                                    waypoint.FinalTurn = constraint.FinalTurn
+                                    foundWaypoint = True
+                                    break
+
+                            if False == foundWaypoint:
+                                sys.stderr.write('Unable to find ' + constraint.Name + ' in ' + name)
+                                sys.exit(-1)
+                        break
+
+        self.setDaemon(True)
         self.start()
 
     def acquireLock(self):
-        if None != self.updateLock:
-            self.updateLock.acquire()
-
-    def release(self):
-        self.stopThread = True
-        self.join()
+        if None != self.UpdateLock:
+            self.UpdateLock.acquire()
 
     def releaseLock(self):
-        if None != self.updateLock:
-            self.updateLock.release()
+        if None != self.UpdateLock:
+            self.UpdateLock.release()
 
     def run(self):
         counter = 0
 
-        while None == self.stopThread:
+        while None == self.StopThread:
             time.sleep(1)
             counter += 1
             if 0 != (counter % 60):
                 continue
 
-            # TODO handle the report queue and update internal information
-            # TODO execute planning, etc.
-            continue
+            self.acquireLock()
+
+            # perform some book-keeping
+            self.RecedingHorizonControl.cleanupWindows()
+
+            # update the aircraft information in RHC
+            for callsign in self.ReportQueue:
+                report = self.ReportQueue[callsign]
+
+                if '' != report.initialApproachFix:
+                    inbound = Inbound(report, self.PerformanceData)
+                    Node(inbound, inbound.ReportTime, self.WeatherModel, self.Configuration, self.SequencingConfiguration)
+                    if None != inbound.EnrouteArrivalTime:
+                        self.RecedingHorizonControl.updateReport(inbound)
+                    else:
+                        print('Unable to find all data of ' + report.aircraft.callsign)
+
+            self.ReportQueue.clear()
+
+            # search the ACO relevant aircrafts
+            relevantInbounds, earliestArrivalTime = self.RecedingHorizonControl.optimizationRelevantInbounds()
+            if None != relevantInbounds:
+                start = time.process_time()
+
+                # get the last landing aircrafts per runway before the RHC stage to check for constraints
+                # this is required to handle the overlap between windows
+                runways, iafs = self.RecedingHorizonControl.latestFixedInbounds(self.Configuration, self.SequencingConfiguration)
+
+                # configure the ACO run
+                acoConfig = Configuration(constraints = self.SequencingConfiguration, config = self.Configuration,
+                                          earliest = earliestArrivalTime, weather = self.WeatherModel,
+                                          preceedingRunways = runways, preceedingIafs = iafs,
+                                          ants = 5 * len(relevantInbounds), generations = 5 * len(relevantInbounds))
+
+                # run the optimizer outside the locking functions
+                self.releaseLock()
+                # perform the ACO run
+                aco = Colony(relevantInbounds, acoConfig)
+                aco.optimize()
+                self.acquireLock()
+
+                if None != aco.Result:
+                    for node in aco.Result:
+                        self.RecedingHorizonControl.resequenceInbound(node.Inbound)
+
+                # measure the exuction time of the overall optimization process
+                executionTime = time.process_time() - start
+                if 60.0 <= executionTime:
+                    print('Optimized ' + str(len(aco.Result)) + ' inbounds in ' + str(executionTime) + ' seconds')
+
+            self.releaseLock()
+
+    def inboundSequence(self):
+        self.acquireLock()
+        sequence = self.RecedingHorizonControl.sequence()
+        self.releaseLock()
+        return sequence
+
+    def configure(self, configuration : AirportSequencing):
+        self.acquireLock()
+        self.SequencingConfiguration = configuration
+        self.releaseLock()

aman/sys/aco/Ant.py

@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+
+from datetime import datetime, timedelta
+import math
+import numpy as np
+import random
+import bisect
+import itertools
+
+from aman.sys.aco.Configuration import Configuration
+from aman.sys.aco.RunwayManager import RunwayManager
+from aman.sys.aco.Node import Node
+
+# This class implements a single ant of the following paper:
+# https://sci-hub.mksa.top/10.1109/cec.2019.8790135
+class Ant:
+    def __init__(self, pheromoneTable : np.array, configuration : Configuration, nodes):
+        self.Configuration = configuration
+        self.Nodes = nodes
+        self.RunwayManager = RunwayManager(self.Configuration)
+        self.InboundSelected = [ False ] * len(self.Nodes)
+        self.InboundScore = np.zeros([ len(self.Nodes), 1 ])
+        self.PheromoneMatrix = pheromoneTable
+        self.SequenceDelay = timedelta(seconds = 0)
+        self.Sequence = None
+
+    # Implements function (5)
+    def heuristicInformation(self, current : int):
+        _, _, _, eta, _ = self.RunwayManager.selectArrivalRunway(self.Nodes[current], self.Configuration.EarliestArrivalTime)
+        if None == eta:
+            return -1.0
+
+        inboundDelay = eta - self.Nodes[current].Inbound.InitialArrivalTime
+
+        # calculate the fraction with a mix of the unused runway time and the delay of single aircrafts
+        heuristic = inboundDelay.total_seconds() / 60.0
+        heuristic = (1.0 / (heuristic or 1)) ** self.Configuration.Beta
+        return heuristic
+
+    # Implements functions (3), (6)
+    def selectNextLandingIndex(self):
+        q = float(random.randint(0, 100)) / 100
+        weights = []
+
+        if q <= self.Configuration.PseudoRandomSelectionRate:
+            for i in range(0, len(self.InboundSelected)):
+                if False == self.InboundSelected[i]:
+                    weights.append(self.heuristicInformation(i))
+        else:
+            # roulette selection strategy
+            pheromoneScale = 0.0
+            for i in range(0, len(self.InboundSelected)):
+                if False == self.InboundSelected[i]:
+                    pheromoneScale += self.heuristicInformation(i)
+
+            for i in range(0, len(self.InboundSelected)):
+                if False == self.InboundSelected[i]:
+                    weights.append(self.heuristicInformation(i) / (pheromoneScale or 1))
+
+        # something was wrong in the runway selection
+        if -1.0 in weights:
+            return None
+
+        total = sum(weights)
+        cumdist = list(itertools.accumulate(weights)) + [total]
+        candidateIndex = bisect.bisect(cumdist, random.random() * total)
+
+        for i in range(0, len(self.InboundSelected)):
+            if False == self.InboundSelected[i]:
+                if 0 == candidateIndex:
+                    return i
+                else:
+                    candidateIndex -= 1
+
+        return None
+
+    def associateInbound(self, node : Node, earliestArrivalTime : datetime):
+        # prepare the statistics
+        _, _, rwy, eta, _ = self.RunwayManager.selectArrivalRunway(node, self.Configuration.EarliestArrivalTime)
+        eta = max(earliestArrivalTime, eta)
+
+        node.Inbound.PlannedRunway = rwy
+        node.Inbound.PlannedStar = node.ArrivalCandidates[rwy.Name].Star
+        node.Inbound.PlannedArrivalTime = eta
+        node.Inbound.PlannedArrivalRoute = node.ArrivalCandidates[rwy.Name].ArrivalRoute
+        node.Inbound.InitialArrivalTime = node.ArrivalCandidates[rwy.Name].InitialArrivalTime
+        self.RunwayManager.registerNode(node, rwy.Name)
+
+        delay = node.Inbound.PlannedArrivalTime - node.Inbound.InitialArrivalTime 
+        if 0.0 < delay.total_seconds():
+            return delay, rwy
+        else:
+            return timedelta(seconds = 0), rwy
+
+    def findSolution(self, first : int):
+        self.Sequence = []
+
+        # select the first inbound
+        self.InboundSelected[first] = True
+        delay, _ = self.associateInbound(self.Nodes[first], self.Configuration.EarliestArrivalTime)
+        self.Sequence.append(first)
+        self.SequenceDelay += delay
+
+        while 1:
+            index = self.selectNextLandingIndex()
+            if None == index:
+                break
+
+            self.InboundSelected[index] = True
+            delay, _ = self.associateInbound(self.Nodes[index], self.Configuration.EarliestArrivalTime)
+            self.SequenceDelay += delay
+            self.Sequence.append(index)
+
+            # update the local pheromone
+            update = (1.0 - self.Configuration.PropagationRatio) * self.PheromoneMatrix[self.Sequence[-2], self.Sequence[-1]]
+            update += self.Configuration.PropagationRatio * self.Configuration.ThetaZero
+            self.PheromoneMatrix[self.Sequence[-2], self.Sequence[-1]] = max(self.Configuration.ThetaZero, update)
+
+        # validate that nothing went wrong
+        if len(self.Sequence) != len(self.Nodes):
+            self.SequenceDelay = None
+            self.Sequence = None

aman/sys/aco/Colony.py

@@ -0,0 +1,155 @@
+#!/usr/bin/env python
+
+from datetime import datetime as dt
+from datetime import datetime, timedelta
+import numpy as np
+import pytz
+import random
+import sys
+import time
+
+from aman.sys.aco.Ant import Ant
+from aman.sys.aco.Configuration import Configuration
+from aman.sys.aco.Node import Node
+from aman.sys.aco.RunwayManager import RunwayManager
+from aman.types.Inbound import Inbound
+
+# This class implements the ant colony of the following paper:
+# https://sci-hub.mksa.top/10.1109/cec.2019.8790135
+class Colony:
+    def associateInbound(rwyManager : RunwayManager, node : Node, earliestArrivalTime : datetime):
+        type, expectedRwy, rwy, eta, _ = rwyManager.selectArrivalRunway(node, earliestArrivalTime)
+        if None == eta:
+            return False
+        eta = max(earliestArrivalTime, eta)
+
+        node.Inbound.PlannedRunway = rwy
+        node.Inbound.PlannedStar = node.ArrivalCandidates[rwy.Name].Star
+        node.Inbound.PlannedArrivalRoute = node.ArrivalCandidates[rwy.Name].ArrivalRoute
+        node.Inbound.PlannedArrivalTime = eta
+        node.Inbound.InitialArrivalTime = node.ArrivalCandidates[rwy.Name].InitialArrivalTime
+        node.Inbound.PlannedTrackmiles = node.ArrivalCandidates[rwy.Name].Trackmiles
+        node.Inbound.AssignmentMode = type
+        node.Inbound.ExpectedRunway = expectedRwy
+        rwyManager.registerNode(node, rwy.Name)
+
+        return True
+
+    def calculateInitialCosts(rwyManager : RunwayManager, nodes, earliestArrivalTime : datetime):
+        overallDelay = timedelta(seconds = 0)
+
+        # assume that the nodes are sorted in FCFS order
+        for node in nodes:
+            if False == Colony.associateInbound(rwyManager, node, earliestArrivalTime):
+                return None
+            overallDelay += node.Inbound.PlannedArrivalTime - node.Inbound.InitialArrivalTime
+
+        return overallDelay
+
+    def __init__(self, inbounds, configuration : Configuration):
+        self.Configuration = configuration
+        self.ResultDelay = None
+        self.FcfsDelay = None
+        self.Result = None
+        self.Nodes = []
+
+        # create the new planning instances
+        currentTime = dt.utcfromtimestamp(int(time.time())).replace(tzinfo = pytz.UTC)
+        for inbound in inbounds:
+            self.Nodes.append(Node(inbound, currentTime, self.Configuration.WeatherModel, self.Configuration.AirportConfiguration, self.Configuration.RunwayConstraints))
+
+        rwyManager = RunwayManager(self.Configuration)
+        delay = Colony.calculateInitialCosts(rwyManager, self.Nodes, self.Configuration.EarliestArrivalTime)
+        if None == delay:
+            return
+        self.FcfsDelay = delay
+
+        # run the optimization in every cycle to ensure optimal spacings based on TTG
+        if 0.0 >= delay.total_seconds():
+            delay = timedelta(seconds = 1.0)
+
+        # initial value for the optimization
+        self.Configuration.ThetaZero = 1.0 / (len(self.Nodes) * (delay.total_seconds() / 60.0))
+        self.PheromoneMatrix = np.ones(( len(self.Nodes), len(self.Nodes) ), dtype=float) * self.Configuration.ThetaZero
+
+    def sequenceAndPredictInbound(self, rwyManager : RunwayManager, node : Node):
+        self.Result.append(node)
+        Colony.associateInbound(rwyManager, node, self.Configuration.EarliestArrivalTime)
+
+        reqTimeDelta = self.Result[-1].Inbound.EnrouteArrivalTime - self.Result[-1].Inbound.PlannedArrivalTime
+        self.Result[-1].Inbound.PlannedArrivalRoute[0].PTA = self.Result[-1].Inbound.PlannedArrivalRoute[0].ETA - reqTimeDelta
+        for i in range(1, len(self.Result[-1].Inbound.PlannedArrivalRoute)):
+            prev = self.Result[-1].Inbound.PlannedArrivalRoute[i - 1]
+            current = self.Result[-1].Inbound.PlannedArrivalRoute[i]
+            current.PTA = prev.PTA + (current.ETA - prev.ETA)
+
+    def optimize(self):
+        if None == self.FcfsDelay:
+            return False
+
+        # define the tracking variables
+        bestSequence = None
+
+        # run the optimization loops
+        for _ in range(0, self.Configuration.ExplorationRuns):
+            # select the first inbound
+            index = random.randint(1, len(self.Nodes)) - 1
+            candidates = []
+
+            for _ in range(0, self.Configuration.AntCount):
+                # let the ant find a solution
+                ant = Ant(self.PheromoneMatrix, self.Configuration, self.Nodes)
+                ant.findSolution(index)
+
+                # fallback to check if findSolution was successful
+                if None == ant.SequenceDelay or None == ant.Sequence:
+                    sys.stderr.write('Invalid ANT run detected!')
+                    break
+
+                candidates.append(
+                    [
+                        ant.SequenceDelay,
+                        ant.Sequence
+                    ]
+                )
+
+            # find the best solution in all candidates of this generation
+            bestCandidate = None
+            for candidate in candidates:
+                if None == bestCandidate or candidate[0] < bestCandidate[0]:
+                    bestCandidate = candidate
+
+                if None != bestSequence:
+                    dTheta = 1.0 / ((bestSequence[0].total_seconds() / 60.0) or 1.0)
+                    for i in range(1, len(bestSequence[1])):
+                        update = (1.0 - self.Configuration.Epsilon) * self.PheromoneMatrix[bestSequence[1][i - 1], bestSequence[1][i]] +  self.Configuration.Epsilon * dTheta
+                        self.PheromoneMatrix[bestSequence[1][i - 1], bestSequence[1][i]] = max(update, self.Configuration.ThetaZero)
+
+            # check if we find a new best candidate
+            if None != bestCandidate:
+                if None == bestSequence or bestCandidate[0] < bestSequence[0]:
+                    bestSequence = bestCandidate
+
+                # found the optimal solution
+                if 1 >= bestSequence[0].total_seconds():
+                    break
+
+        # create the final sequence
+        self.Result = []
+        rwyManager = RunwayManager(self.Configuration)
+
+        # use the optimized sequence
+        if None != bestSequence and self.FcfsDelay >= bestSequence[0]:
+            # create the resulting sequence
+            self.ResultDelay = bestSequence[0]
+
+            # finalize the sequence
+            for idx in bestSequence[1]:
+                self.sequenceAndPredictInbound(rwyManager, self.Nodes[idx])
+        # use the FCFS sequence
+        else:
+            self.ResultDelay = self.FcfsDelay
+            for node in self.Nodes:
+                self.sequenceAndPredictInbound(rwyManager, node)
+
+        return True

aman/sys/aco/Configuration.py

@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+
+from datetime import timedelta
+
+class Configuration:
+    def __init__(self, **kwargs):
+        # the AMAN specific information
+        self.RunwayConstraints = kwargs.get('constraints', None)
+        self.PreceedingRunwayInbounds = kwargs.get('preceedingRunways', None)
+        self.PreceedingIafInbounds = kwargs.get('preceedingIafs', None)
+        self.EarliestArrivalTime = kwargs.get('earliest', None)
+        self.WeatherModel = kwargs.get('weather', None)
+        self.AirportConfiguration = kwargs.get('config', None)
+
+        # the ACO specific information
+        self.AntCount = kwargs.get('ants', 20)
+        self.ExplorationRuns = kwargs.get('generations', 20)
+        self.PheromoneEvaporationRate = 0.9
+        self.PseudoRandomSelectionRate = 0.9
+        self.PropagationRatio = 0.9
+        self.Epsilon = 0.1
+        self.Beta = 2.0
+        self.ThetaZero = None

aman/sys/aco/Constraints.py

@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+
+class SpacingConstraints:
+    def __init__(self):
+        self.WtcSpacing = {}
+        self.WtcSpacing['L'] = {}
+        self.WtcSpacing['M'] = {}
+        self.WtcSpacing['H'] = {}
+        self.WtcSpacing['J'] = {}
+
+        self.WtcSpacing['L']['L'] = 3.0
+        self.WtcSpacing['L']['M'] = 3.0
+        self.WtcSpacing['L']['H'] = 3.0
+        self.WtcSpacing['L']['J'] = 3.0
+        self.WtcSpacing['M']['L'] = 5.0
+        self.WtcSpacing['M']['M'] = 3.0
+        self.WtcSpacing['M']['H'] = 3.0
+        self.WtcSpacing['M']['J'] = 3.0
+        self.WtcSpacing['H']['L'] = 6.0
+        self.WtcSpacing['H']['M'] = 5.0
+        self.WtcSpacing['H']['H'] = 4.0
+        self.WtcSpacing['H']['J'] = 4.0
+        self.WtcSpacing['J']['L'] = 8.0
+        self.WtcSpacing['J']['M'] = 7.0
+        self.WtcSpacing['J']['H'] = 6.0
+        self.WtcSpacing['J']['J'] = 6.0
+
+        self.RecatSpacing = {}
+        self.RecatSpacing['A'] = {}
+        self.RecatSpacing['B'] = {}
+        self.RecatSpacing['C'] = {}
+        self.RecatSpacing['D'] = {}
+        self.RecatSpacing['E'] = {}
+        self.RecatSpacing['F'] = {}
+
+        self.RecatSpacing['A']['A'] = 3.0
+        self.RecatSpacing['A']['B'] = 3.0
+        self.RecatSpacing['A']['C'] = 3.0
+        self.RecatSpacing['A']['D'] = 3.0
+        self.RecatSpacing['A']['E'] = 3.0
+        self.RecatSpacing['A']['F'] = 3.0
+        self.RecatSpacing['B']['A'] = 4.0
+        self.RecatSpacing['B']['B'] = 4.0
+        self.RecatSpacing['B']['C'] = 4.0
+        self.RecatSpacing['B']['D'] = 4.0
+        self.RecatSpacing['B']['E'] = 4.0
+        self.RecatSpacing['B']['F'] = 4.0
+        self.RecatSpacing['C']['A'] = 5.0
+        self.RecatSpacing['C']['B'] = 5.0
+        self.RecatSpacing['C']['C'] = 5.0
+        self.RecatSpacing['C']['D'] = 5.0
+        self.RecatSpacing['C']['E'] = 5.0
+        self.RecatSpacing['C']['F'] = 5.0
+        self.RecatSpacing['D']['A'] = 6.0
+        self.RecatSpacing['D']['B'] = 4.0
+        self.RecatSpacing['D']['C'] = 3.0
+        self.RecatSpacing['D']['D'] = 3.0
+        self.RecatSpacing['D']['E'] = 2.5
+        self.RecatSpacing['D']['F'] = 2.5
+        self.RecatSpacing['E']['A'] = 7.0
+        self.RecatSpacing['E']['B'] = 5.0
+        self.RecatSpacing['E']['C'] = 4.0
+        self.RecatSpacing['E']['D'] = 4.0
+        self.RecatSpacing['E']['E'] = 3.0
+        self.RecatSpacing['E']['F'] = 3.0
+        self.RecatSpacing['F']['A'] = 8.0
+        self.RecatSpacing['F']['B'] = 6.0
+        self.RecatSpacing['F']['C'] = 5.0
+        self.RecatSpacing['F']['D'] = 5.0
+        self.RecatSpacing['F']['E'] = 4.0
+        self.RecatSpacing['F']['F'] = 3.0

aman/sys/aco/Node.py

@@ -0,0 +1,222 @@
+#!/usr/bin/env python
+
+import math
+import sys
+
+from datetime import datetime, timedelta
+
+from aman.config.Airport import Airport
+from aman.config.AirportSequencing import AirportSequencing
+from aman.formats.SctEseFormat import SctEseFormat
+from aman.sys.WeatherModel import WeatherModel
+from aman.types.ArrivalData import ArrivalData
+from aman.types.ArrivalRoute import ArrivalRoute
+from aman.types.ArrivalWaypoint import ArrivalWaypoint
+from aman.types.Runway import Runway
+from aman.types.Inbound import Inbound
+from aman.types.Waypoint import Waypoint
+
+class Node:
+    def findArrivalRoute(iaf : str, runway : Runway, navData : SctEseFormat):
+        for arrivalRunway in navData.ArrivalRoutes:
+            if arrivalRunway == runway.Name:
+                stars = navData.ArrivalRoutes[arrivalRunway]
+                for star in stars:
+                    if 0 != len(star.Route) and iaf == star.Iaf.Name:
+                        return star
+        return None
+
+    def updateArrivalWaypoint(self, arrivalRoute, flightTime, altitude, indicatedAirspeed, groundSpeed):
+        arrivalRoute[-1].FlightTime = timedelta(seconds = flightTime)
+        arrivalRoute[-1].ETA = self.PredictionTime + arrivalRoute[-1].FlightTime
+        arrivalRoute[-1].PTA = arrivalRoute[-1].ETA
+        arrivalRoute[-1].Altitude = altitude
+        arrivalRoute[-1].IndicatedAirspeed = indicatedAirspeed
+        arrivalRoute[-1].GroundSpeed = groundSpeed
+
+    def arrivalEstimation(self, runway : Runway, star : ArrivalRoute, weather : WeatherModel):
+        # calculate remaining trackmiles
+        trackmiles = self.PredictedDistanceToIAF
+        start = star.Route[0]
+        turnIndices = [ -1, -1 ]
+        constraints = []
+        for i in range(0, len(star.Route)):
+            # identified the base turn
+            if True == star.Route[i].BaseTurn:
+                turnIndices[0] = i
+            # identified the final turn
+            elif -1 != turnIndices[0] and True == star.Route[i].FinalTurn:
+                turnIndices[1] = i
+            # skip waypoints until the final turn point is found
+            elif -1 != turnIndices[0] and -1 == turnIndices[1]:
+                continue
+
+            trackmiles += start.haversine(star.Route[i])
+
+            # check if a new constraint is defined
+            altitude = -1
+            speed = -1
+            if None != star.Route[i].Altitude:
+                altitude = star.Route[i].Altitude
+            if None != star.Route[i].Speed:
+                speed = star.Route[i].Speed
+            if -1 != altitude or -1 != speed:
+                constraints.append([ trackmiles, altitude, speed ])
+
+            start = star.Route[i]
+
+        # add the remaining distance from the last waypoint to the runway threshold
+        trackmiles += start.haversine(runway.Start)
+
+        if turnIndices[0] > turnIndices[1] or (-1 == turnIndices[1] and -1 != turnIndices[0]):
+            sys.stderr.write('Invalid constraint definition found for ' + star.Name)
+            sys.exit(-1)
+
+        # calculate descend profile
+        currentHeading = Waypoint(latitude = self.Inbound.Report.position.latitude, longitude = self.Inbound.Report.position.longitude).bearing(star.Route[0])
+        currentIAS = self.Inbound.PerformanceData.ias(self.Inbound.Report.dynamics.altitude, trackmiles)
+        currentPosition = [ self.Inbound.Report.dynamics.altitude, self.Inbound.Report.dynamics.groundSpeed ]
+        distanceToWaypoint = self.PredictedDistanceToIAF
+        flightTimeSeconds = 0
+        flightTimeOnStarSeconds = 0
+        nextWaypointIndex = 0
+        flownDistance = 0.0
+        arrivalRoute = [ ArrivalWaypoint(waypoint = star.Route[0], trackmiles = distanceToWaypoint) ]
+
+        while True:
+            # check if a constraint cleanup is needed and if a speed-update is needed
+            if 0 != len(constraints) and flownDistance >= constraints[0][0]:
+                if -1 != constraints[0][2]:
+                    currentIAS = min(constraints[0][2], self.Inbound.PerformanceData.ias(self.Inbound.Report.dynamics.altitude, trackmiles - flownDistance))
+                    currentPosition[1] = min(weather.calculateGS(currentPosition[0], currentIAS, currentHeading), currentPosition[1])
+                constraints.pop(0)
+
+            # search next altitude constraint
+            altitudeDistance = 0
+            nextAltitude = 0
+            for constraint in constraints:
+                if -1 != constraint[1]:
+                    altitudeDistance = constraint[0]
+                    nextAltitude = constraint[1]
+                    break
+
+            # check if update of altitude and speed is needed on 3° glide
+            if currentPosition[0] > nextAltitude and ((currentPosition[0] - nextAltitude) / 1000 * 3) > (altitudeDistance - flownDistance):
+                oldGroundspeed = currentPosition[1]
+                descendRate = (currentPosition[1] / 60) / 3 * 1000 / 6
+                newAltitude = currentPosition[0] - descendRate
+                if 0 > newAltitude:
+                    newAltitude = 0
+
+                currentPosition = [ newAltitude, min(weather.calculateGS(newAltitude, currentIAS, currentHeading), currentPosition[1]) ]
+                distance = (currentPosition[1] + oldGroundspeed) / 2 / 60 / 6
+            else:
+                distance = currentPosition[1] / 60 / 6
+
+            # update the statistics
+            distanceToWaypoint -= distance
+            flownDistance += distance
+            newIAS = min(currentIAS, self.Inbound.PerformanceData.ias(currentPosition[0], trackmiles - flownDistance))
+            if newIAS < currentIAS:
+                currentPosition[1] = min(weather.calculateGS(currentPosition[0], newIAS, currentHeading), currentPosition[1])
+                currentIAS = newIAS
+
+            flightTimeSeconds += 10
+            if flownDistance >= self.PredictedDistanceToIAF:
+                flightTimeOnStarSeconds += 10
+            if flownDistance >= trackmiles:
+                if None == arrivalRoute[-1].FlightTime:
+                    self.updateArrivalWaypoint(arrivalRoute, flightTimeSeconds, currentPosition[0], currentIAS, currentPosition[1])
+                break
+
+            # check if we follow a new waypoint pair
+            if 0 >= distanceToWaypoint:
+                lastWaypointIndex = nextWaypointIndex
+                nextWaypointIndex += 1
+
+                self.updateArrivalWaypoint(arrivalRoute, flightTimeSeconds, currentPosition[0], currentIAS, currentPosition[1])
+
+                # check if a skip from base to final turn waypoints is needed
+                if -1 != turnIndices[0] and nextWaypointIndex > turnIndices[0] and nextWaypointIndex < turnIndices[1]:
+                    nextWaypointIndex = turnIndices[1]
+
+                # update the statistics
+                if nextWaypointIndex < len(star.Route):
+                    distanceToWaypoint = star.Route[lastWaypointIndex].haversine(star.Route[nextWaypointIndex])
+                    currentHeading = star.Route[lastWaypointIndex].bearing(star.Route[nextWaypointIndex])
+                    currentPosition[1] = min(weather.calculateGS(currentPosition[0], currentIAS, currentHeading), currentPosition[1])
+
+                    arrivalRoute.append(ArrivalWaypoint(waypoint = star.Route[nextWaypointIndex], trackmiles = arrivalRoute[-1].Trackmiles + distanceToWaypoint))
+
+        return timedelta(seconds = flightTimeSeconds), trackmiles, arrivalRoute, timedelta(seconds = flightTimeOnStarSeconds)
+
+    def __init__(self, inbound : Inbound, referenceTime : datetime, weatherModel : WeatherModel,
+                 airportConfig : Airport, sequencingConfig : AirportSequencing):
+        self.PredictedDistanceToIAF = inbound.Report.distanceToIAF
+        self.PredictedCoordinate = [ inbound.CurrentPosition.latitude, inbound.CurrentPosition.longitude ]
+        self.PredictionTime = referenceTime
+        self.ArrivalCandidates = None
+        self.Inbound = inbound
+
+        if None == referenceTime or None == sequencingConfig:
+            return
+
+        # predict the distance to IAF
+        timePrediction = (referenceTime - inbound.ReportTime).total_seconds()
+        if 0 != timePrediction and 0 != len(sequencingConfig.ActiveArrivalRunways):
+            # calculate current motion information
+            course = weatherModel.estimateCourse(inbound.Report.dynamics.altitude, inbound.Report.dynamics.groundSpeed, inbound.Report.dynamics.heading)
+            tempWaypoint = Waypoint(longitude = inbound.CurrentPosition.longitude, latitude = inbound.CurrentPosition.latitude)
+            gs = inbound.Report.dynamics.groundSpeed * 0.514444 # ground speed in m/s
+            distance = gs * timePrediction
+            prediction = tempWaypoint.project(course, distance)
+
+            # calculate the bearing between the current position and the IAF
+            star = Node.findArrivalRoute(inbound.Report.initialApproachFix, sequencingConfig.ActiveArrivalRunways[0].Runway, airportConfig.GngData)
+
+            # calculate the distance based on the flown distance and update the predicted distance
+            if None != star:
+                bearing = Waypoint(longitude = prediction[1], latitude = prediction[0]).bearing(star.Route[0])
+                correctedDistance = math.cos(abs(bearing - course)) * distance * 0.000539957
+                self.PredictedDistanceToIAF -= correctedDistance
+                if 0.0 > self.PredictedDistanceToIAF:
+                    self.PredictedDistanceToIAF = 0.0
+
+                self.PredictedCoordinate = prediction
+
+        setEnrouteTime = None == self.Inbound.EnrouteArrivalTime
+        self.ArrivalCandidates = {}
+
+        # calculate the timings for the different arrival runways
+        for identifier in sequencingConfig.ActiveArrivalRunways:
+            star = Node.findArrivalRoute(self.Inbound.Report.initialApproachFix, identifier.Runway, airportConfig.GngData)
+
+            if None != star:
+                flightTime, trackmiles, arrivalRoute, flightTimeOnStar = self.arrivalEstimation(identifier.Runway, star, weatherModel)
+
+                # use the the distance to the IAF for optimizations
+                timeUntilIAF = flightTime - flightTimeOnStar
+                if 0.0 > timeUntilIAF.total_seconds():
+                    timeUntilIAF = timedelta(seconds = 0)
+
+                # the best TTL is the longest path with the slowest speed
+                ttgMax = 60
+                ttgRatio = 0.05
+                if star.Name in airportConfig.OptimizationParameters:
+                    ttgMax = airportConfig.OptimizationParameters[star.Name][0]
+                    ttgRatio = airportConfig.OptimizationParameters[star.Name][1]
+
+                ttg = timedelta(seconds = timeUntilIAF.total_seconds() * ttgRatio)
+                if (ttg.total_seconds() > ttgMax):
+                    ttg = timedelta(seconds = ttgMax)
+                if None == self.Inbound.MaximumTimeToGain or ttg > self.Inbound.MaximumTimeToGain:
+                    self.Inbound.MaximumTimeToGain = ttg
+
+                ita = self.Inbound.ReportTime + flightTime
+                earliest = ita - self.Inbound.MaximumTimeToGain
+
+                self.ArrivalCandidates[identifier.Runway.Name] = ArrivalData(star = star, ita = earliest, route = arrivalRoute,
+                                                                             trackmiles = trackmiles)
+
+                if True == setEnrouteTime and (None == self.Inbound.EnrouteArrivalTime or ita < self.Inbound.EnrouteArrivalTime):
+                    self.Inbound.EnrouteArrivalTime = ita

aman/sys/aco/RunwayManager.py

@@ -0,0 +1,208 @@
+#!/usr/bin/env python
+
+import copy
+
+from datetime import datetime, timedelta
+
+from aman.config.RunwaySequencing import RunwayAssignmentType
+from aman.sys.aco.Configuration import Configuration
+from aman.sys.aco.Constraints import SpacingConstraints
+from aman.sys.aco.Node import Node
+
+class RunwayManager:
+    def __init__(self, configuration : Configuration):
+        self.Spacings = SpacingConstraints()
+        self.Configuration = configuration
+        self.RunwayInbounds = copy.deepcopy(configuration.PreceedingRunwayInbounds)
+        self.IafInbounds = copy.deepcopy(configuration.PreceedingIafInbounds)
+
+    def calculateEarliestArrivalTime(self, runway : str, node : Node, earliestArrivalTime : datetime):
+        constrainedETA = None
+
+        if None != self.RunwayInbounds[runway]:
+            # get the WTC based ETA
+            if None == self.RunwayInbounds[runway].Inbound.WTC or None == node.Inbound.WTC:
+                spacingWTC = 3
+            else:
+                if self.RunwayInbounds[runway].Inbound.WTC not in self.Spacings.WtcSpacing:
+                    spacingWTC = 3
+                elif node.Inbound.WTC not in self.Spacings.WtcSpacing[self.RunwayInbounds[runway].Inbound.WTC]:
+                    spacingWTC = self.Spacings.WtcSpacing[self.RunwayInbounds[runway].Inbound.WTC]['L']
+                else:
+                    spacingWTC = self.Spacings.WtcSpacing[self.RunwayInbounds[runway].Inbound.WTC][node.Inbound.WTC]
+
+            # get the runway time spacing
+            spacingRunway = self.Configuration.RunwayConstraints.findRunway(runway).Spacing
+            constrainedETA = self.RunwayInbounds[runway].Inbound.PlannedArrivalTime + timedelta(minutes = max(spacingWTC, spacingRunway) / (node.Inbound.PerformanceData.SpeedApproach / 60))
+
+        # calculate the arrival times for the dependent inbounds
+        for dependentRunway in self.Configuration.RunwayConstraints.findDependentRunways(runway):
+            if None != self.RunwayInbounds[dependentRunway.Runway.Name]:
+                candidate = self.RunwayInbounds[dependentRunway.Runway.Name].Inbound.PlannedArrivalTime + timedelta(minutes = 3 / (node.Inbound.PerformanceData.SpeedApproach / 60))
+                if None == constrainedETA or candidate > constrainedETA:
+                    constrainedETA = candidate
+
+        if None == constrainedETA:
+            eta = max(node.ArrivalCandidates[runway].InitialArrivalTime, earliestArrivalTime)
+        else:
+            eta = max(node.ArrivalCandidates[runway].InitialArrivalTime, max(constrainedETA, earliestArrivalTime))
+
+        return eta, eta - node.ArrivalCandidates[runway].InitialArrivalTime
+
+    def selectShallShouldMayArrivalRunway(self, node : Node, runways, earliestArrivalTime : datetime):
+        candidate = None
+        delay = None
+
+        for runway in runways:
+            eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, earliestArrivalTime)
+            if None == delay:
+                delay = eta - node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime
+                candidate = runway
+            elif delay > (eta - node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime):
+                delay = eta- node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime
+                candidate = runway
+
+        return candidate
+
+    def executeShallShouldMayAssignment(self, node : Node, earliestArrivalTime : datetime):
+        shallRunways = []
+        shouldRunways = []
+        mayRunways = []
+        expectedRunway = None
+
+        for runway in self.Configuration.RunwayConstraints.ActiveArrivalRunways:
+            # test the shall assignments
+            if RunwayAssignmentType.AircraftType in runway.ShallAssignments:
+                if node.Inbound.Report.aircraft.type in runway.ShallAssignments[RunwayAssignmentType.AircraftType]:
+                    shallRunways.append(runway)
+                    expectedRunway = runway.Runway.Name
+            if RunwayAssignmentType.GateAssignment in runway.ShallAssignments:
+                if node.Inbound.Report.plannedGate in runway.ShallAssignments[RunwayAssignmentType.GateAssignment]:
+                    shallRunways.append(runway)
+                    expectedRunway = runway.Runway.Name
+
+            # test the should assignments
+            if RunwayAssignmentType.AircraftType in runway.ShouldAssignments:
+                if node.Inbound.Report.aircraft.type in runway.ShouldAssignments[RunwayAssignmentType.AircraftType]:
+                    shouldRunways.append(runway)
+                    expectedRunway = runway.Runway.Name
+            if RunwayAssignmentType.GateAssignment in runway.ShouldAssignments:
+                if node.Inbound.Report.plannedGate in runway.ShouldAssignments[RunwayAssignmentType.GateAssignment]:
+                    shouldRunways.append(runway)
+                    expectedRunway = runway.Runway.Name
+
+            # test the may assignments
+            if RunwayAssignmentType.AircraftType in runway.MayAssignments:
+                if node.Inbound.Report.aircraft.type in runway.MayAssignments[RunwayAssignmentType.AircraftType]:
+                    eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, earliestArrivalTime)
+                    if (eta - node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime) <= self.Configuration.AirportConfiguration.MaxDelayMay:
+                        mayRunways.append(runway)
+                        expectedRunway = runway.Runway.Name
+            if RunwayAssignmentType.GateAssignment in runway.MayAssignments:
+                if node.Inbound.Report.plannedGate in runway.MayAssignments[RunwayAssignmentType.GateAssignment]:
+                    eta, _ = self.calculateEarliestArrivalTime(runway.Runway.Name, node, earliestArrivalTime)
+                    if (eta - node.ArrivalCandidates[runway.Runway.Name].InitialArrivalTime) <= self.Configuration.AirportConfiguration.MaxDelayMay:
+                        mayRunways.append(runway)
+                        expectedRunway = runway.Runway.Name
+
+        runway = self.selectShallShouldMayArrivalRunway(node, shallRunways, earliestArrivalTime)
+        if None != runway:
+            return 'shall', expectedRunway, [ runway ]
+        runway = self.selectShallShouldMayArrivalRunway(node, shouldRunways, earliestArrivalTime)
+        if None != runway:
+            return 'should', expectedRunway, [ runway ]
+        runway = self.selectShallShouldMayArrivalRunway(node, mayRunways, earliestArrivalTime)
+        if None != runway:
+            return 'may', expectedRunway, [ runway ]
+
+        return 'other', None, self.Configuration.RunwayConstraints.ActiveArrivalRunways
+
+    def selectArrivalRunway(self, node : Node, earliestArrivalTime : datetime):
+        availableRunways = self.Configuration.RunwayConstraints.ActiveArrivalRunways
+        if 0 == len(availableRunways):
+            return None, None, None, None, None
+
+        expectedRunway = None
+
+        if True == self.Configuration.RunwayConstraints.UseShallShouldMay and None == node.Inbound.RequestedRunway:
+            type, expectedRunway, availableRunways = self.executeShallShouldMayAssignment(node, earliestArrivalTime)
+        elif None != node.Inbound.RequestedRunway:
+            for runway in availableRunways:
+                if node.Inbound.RequestedRunway == runway.Runway.Name:
+                    availableRunways = [ runway ]
+                    type = 'other'
+                    break
+
+        if 0 == len(availableRunways):
+            runway = self.Configuration.RunwayConstraints.ActiveArrivalRunways[0]
+            eta, delta = self.calculateEarliestArrivalTime(runway.Runway.Name, node, earliestArrivalTime)
+            return 'other', None, runway, eta, delta
+
+        # start with the beginning
+        selectedRunway = None
+        lostTime = None
+        eta = None
+
+        # get the runway with the earliest ETA
+        for runway in availableRunways:
+            candidate, delta = self.calculateEarliestArrivalTime(runway.Runway.Name, node, earliestArrivalTime)
+            if None == eta or eta > candidate:
+                selectedRunway = runway.Runway
+                lostTime = delta
+                eta = candidate
+
+        # find the corresponding IAF
+        iaf = node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].Waypoint.Name
+        if iaf in self.IafInbounds:
+            delta = 100000.0
+            targetLevel = None
+
+            # find the planned level
+            for level in self.IafInbounds[iaf]:
+                difference = abs(level - node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].Altitude)
+                if difference < delta:
+                    delta = difference
+                    targetLevel = level
+
+            if targetLevel in self.IafInbounds[iaf]:
+                # check if we have to lose time to ensure the IAF spacing
+                # the function assumes that model allows only TTG during flight to IAF
+                if None != self.IafInbounds[iaf][targetLevel]:
+                    if None != self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalRoute:
+                        # ETA at IAF of preceeding traffic
+                        plannedDelta = self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalTime - self.IafInbounds[iaf][targetLevel].Inbound.EnrouteArrivalTime
+                        iafETAPreceeding = self.IafInbounds[iaf][targetLevel].Inbound.PlannedArrivalRoute[0].ETA + plannedDelta
+
+                        # ETA at IAF of current inbound
+                        plannedDelta = eta - node.Inbound.EnrouteArrivalTime
+                        iafETACurrent = node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].ETA
+
+                        # required time delte to ensure IAF spacing
+                        timeSpacing = timedelta(hours = self.Configuration.AirportConfiguration.IafSpacing / node.ArrivalCandidates[selectedRunway.Name].ArrivalRoute[0].GroundSpeed)
+
+                        # we are too close to preceeding traffic
+                        currentTimeSpacing = iafETACurrent - iafETAPreceeding
+                        if timeSpacing > currentTimeSpacing:
+                            eta = eta + (timeSpacing - currentTimeSpacing)
+                            lostTime += (timeSpacing - currentTimeSpacing)
+
+        return type, expectedRunway, selectedRunway, eta, lostTime
+
+    def registerNode(self, node : Node, runway : str):
+        self.RunwayInbounds[runway] = node
+
+         # find the corresponding IAF
+        iaf = node.ArrivalCandidates[runway].ArrivalRoute[0].Waypoint.Name
+        if iaf in self.IafInbounds:
+            delta = 100000.0
+            targetLevel = None
+
+            # find the planned level
+            for level in self.IafInbounds[iaf]:
+                difference = abs(level - node.ArrivalCandidates[runway].ArrivalRoute[0].Altitude)
+                if difference < delta:
+                    delta = difference
+                    targetLevel = level
+
+            if targetLevel in self.IafInbounds[iaf]:
+                self.IafInbounds[iaf][targetLevel] = node

aman/tools/KeyPairCreator.py

@@ -1,7 +1,9 @@
 #!/usr/bin/env python
 
 import argparse
+from datetime import datetime
 import os
+import sys
 from typing import Tuple
 import zmq.auth
 
@@ -10,14 +12,12 @@ import zmq.auth
 # @return The public and private key tuple
 def KeyPairCreator(directory: str, server: bool) -> Tuple[str, str]:
     if not server:
-        print('Creating a new pair for a client...')
         target = 'client'
     else:
-        print('Creating a new pair for the server...')
         target = 'server'
 
     public, private = zmq.auth.create_certificates(directory, target)
-    return (public, private)
+    return public, private
 
 def str2bool(value):
     if isinstance(value, bool):
@@ -29,16 +29,71 @@ def str2bool(value):
     else:
         raise argparse.ArgumentTypeError('Boolean value expected')
 
+def findIdentificationKey(path, publicKey : bool):
+    if True == publicKey:
+        identifier = 'public-key = '
+    else:
+        identifier = 'secret-key = '
+
+    with open(path) as file:
+        key = ''
+
+        for line in file:
+            if identifier in line:
+                elements = line.split('=')
+                for idx in range(1, len(elements)):
+                    if 0 == len(key):
+                        key = elements[idx][2:-1]
+                        key = key + elements[idx][-1]
+                    else:
+                        key = key + '=' + elements[idx]
+
+                return key[0:-2]
+
+    return None
+
 if __name__ == '__main__':
     # create the commandline parser
     parser = argparse.ArgumentParser(description='Create a new key-value pair')
-    parser.add_argument('directory', help='Directory where to store the key pair')
+    parser.add_argument('--directory', type=str, help='Directory where to store the key pair')
+    parser.add_argument('--publickey', nargs='?', type=str, default=os.getcwd(), help='Full path to the public key of the server')
     parser.add_argument('--server', default=False, action='store_true', help="Creates server key pair")
     args = parser.parse_args()
 
+    # validate the arguments
+    if False == args.server and not os.path.exists(args.publickey):
+        sys.stderr.write('The public key of the server cannot be found')
+        sys.exit(-1)
+
     # create the directory if it does not exist
     if not os.path.exists(args.directory):
         os.makedirs(args.directory)
 
     # create the keys
-    KeyPairCreator(args.directory, args.server)
+    _, private = KeyPairCreator(args.directory, args.server)
+
+    if False == args.server:
+        publicServer  = findIdentificationKey(args.publickey, True)
+        publicClient  = findIdentificationKey(private, True)
+        privateClient = findIdentificationKey(private, False)
+
+        if None == publicServer:
+            sys.stderr.write('The public key of the server cannot be found in the defined file')
+            sys.exit(-1)
+        if None == publicClient:
+            sys.stderr.write('Unable to extract the created public key')
+            sys.exit(-1)
+        if None == privateClient:
+            sys.stderr.write('Unable to extract the created private key')
+            sys.exit(-1)
+
+        # rename keys
+        timestamp = str(datetime.now(tz=None))
+        timestamp = timestamp.replace(' ', '_')
+        timestamp = timestamp.replace(':', '-')
+        os.rename(os.path.join(args.directory, 'client.key'), os.path.join(args.directory, timestamp + '.key'))
+        os.rename(os.path.join(args.directory, 'client.key_secret'), os.path.join(args.directory, timestamp + '.key_secret'))
+
+        print(publicServer)
+        print(publicClient)
+        print(privateClient)

aman/tools/SkybraryAircraftCrawler.py

@@ -118,13 +118,9 @@ if __name__ == '__main__':
     print('Found ' + str(len(links)) + ' aircrafts')
 
     aircrafts = []
-    parsed = 0
     for link in links:
         valid, aircraft = parsePerformanceData(link)
 
-        parsed += 1
-        print('Parsed ' + str(parsed) + ' of ' + str(len(links)), end='\r')
-
         if False == valid:
             print('Unable to find performance data for ' + link)
             continue

aman/types/ArrivalData.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python
+
+from datetime import datetime, timedelta
+
+from aman.types.ArrivalRoute import ArrivalRoute
+
+class ArrivalData:
+    def __init__(self, **kargs):
+        self.Star = None
+        self.InitialArrivalTime = None
+        self.ArrivalRoute = None
+        self.Trackmiles = None
+
+        for key, value in kargs.items():
+            if 'star' == key:
+                if True == isinstance(value, ArrivalRoute):
+                    self.Star = value
+                else:
+                    raise Exception('Invalid type for star')
+            elif 'ita' == key:
+                if True == isinstance(value, datetime):
+                    self.InitialArrivalTime = value
+                else:
+                    raise Exception('Invalid type for ita')
+            elif 'route' == key:
+                self.ArrivalRoute = value
+            elif 'trackmiles' == key:
+                self.Trackmiles = value
+            else:
+                raise Exception('Unknown key: ' + key)

aman/types/ArrivalRoute.py

@@ -2,10 +2,10 @@
 
 class ArrivalRoute:
     def __init__(self, name : str, runway : str, waypoints : list):
-        self.name = name
-        self.runway = runway
-        self.iaf = waypoints[0]
-        self.route = waypoints
+        self.Name = name
+        self.Runway = runway
+        self.Iaf = waypoints[0]
+        self.Route = waypoints
 
     def __str__(self):
-        return 'Name: ' + self.name + ', IAF: ' + self.iaf.name + ', RWY: ' + self.runway
+        return 'Name: ' + self.Name + ', IAF: ' + self.Iaf.Name + ', RWY: ' + self.Runway

aman/types/ArrivalWaypoint.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+class ArrivalWaypoint():
+    def __init__(self, **kwargs):
+        self.Waypoint = None
+        self.FlightTime = None
+        self.Trackmiles = None
+        self.IndicatedAirspeed = None
+        self.GroundSpeed = None
+        self.Altitude = None
+        self.ETA = None
+        self.PTA = None
+
+        for key, value in kwargs.items():
+            if 'waypoint' == key.lower():
+                self.Waypoint = value
+            elif 'flighttime' == key.lower():
+                self.FlightTime = value
+            elif 'eta' == key.lower():
+                self.ETA = value
+            elif 'pta' == key.lower():
+                self.PTA = value
+            elif 'trackmiles' == key.lower():
+                self.Trackmiles = value
+            elif 'altitude' == key.lower():
+                self.Altitude = value
+            elif 'groundspeed' == key.lower():
+                self.GroundSpeed = value
+            elif 'indicated' == key.lower():
+                self.IndicatedAirspeed = value
+            else:
+                raise Exception('Invalid constructor argument: ' + key)
+
+        

aman/types/Inbound.py

@@ -1,7 +1,45 @@
 #!/usr/bin/env python
 
+import pytz
+
+from datetime import datetime
+
 from aman.com import AircraftReport_pb2
+from aman.sys.WeatherModel import WeatherModel
+from aman.types.PerformanceData import PerformanceData
 
 class Inbound:
-    def __init__(self, report : AircraftReport_pb2.AircraftReport):
-        self.report = report
+    def __init__(self, report : AircraftReport_pb2.AircraftReport, performanceData : PerformanceData):
+        self.Report = report
+        self.Callsign = report.aircraft.callsign
+        self.CurrentPosition = report.position
+        self.ReportTime = datetime.strptime(report.reportTime + '+0000', '%Y%m%d%H%M%S%z').replace(tzinfo = pytz.UTC)
+        self.EnrouteArrivalTime = None
+        self.InitialArrivalTime = None
+        self.RequestedRunway = None
+        self.MaximumTimeToGain = None
+        self.PlannedArrivalTime = None
+        self.PlannedRunway = None
+        self.PlannedStar = None
+        self.PlannedArrivalRoute = None
+        self.PlannedTrackmiles = None
+        self.FixedSequence = False
+        self.ExpectedRunway = None
+        self.AssignmentMode = None
+        self.HasValidSequence = False
+        self.WTC = None
+
+        # analyze the WTC
+        wtc = report.aircraft.wtc.upper()
+        if 'L' == wtc or 'M' == wtc or 'H' == wtc or 'J' == wtc:
+            self.WTC = wtc
+
+        # analyze the requested runway
+        if '' != report.requestedRunway:
+            self.RequestedRunway = report.requestedRunway
+
+        # search performance data -> fallback to A320
+        if self.Report.aircraft.type in performanceData.Aircrafts:
+            self.PerformanceData = performanceData.Aircrafts[self.Report.aircraft.type]
+        if None == self.PerformanceData:
+            self.PerformanceData = performanceData.Aircrafts['A320']

aman/types/PerformanceData.py

@@ -2,17 +2,29 @@
 
 class PerformanceData:
     def __init__(self, icao : str):
-        self.icao = icao
-        self.speedAboveFL240 = 0.0
-        self.speedAboveFL100 = 0.0
-        self.speedBelowFL100 = 0.0
-        self.speedApproach = 0.0
-        self.rodAboveFL240 = 0.0
-        self.rodAboveFL100 = 0.0
-        self.rodBelowFL100 = 2000.0
+        self.Icao = icao
+        self.SpeedAboveFL240 = 0.0
+        self.SpeedAboveFL100 = 0.0
+        self.SpeedBelowFL100 = 0.0
+        self.SpeedApproach = 0.0
+        self.RodAboveFL240 = 0.0
+        self.RodAboveFL100 = 0.0
+        self.RodBelowFL100 = 2000.0
+
+    def ias(self, altitude, distance):
+        if 24000 < altitude:
+            return self.SpeedAboveFL240
+        elif 10000 < altitude:
+            return self.SpeedAboveFL100
+        elif 10000 >= altitude and 5 < distance:
+            return self.SpeedBelowFL100
+        elif 5 >= distance:
+            return self.SpeedApproach
+        else:
+            return self.SpeedBelowFL100
 
     def __str__(self):
-        return 'ICAO: ' + self.icao + ', FL240: ' + str(self.rodAboveFL240) + '@' + str(self.speedAboveFL240) + \
-               ', +FL100: ' + str(self.rodAboveFL100) + '@' + str(self.speedAboveFL100) + \
-               ', -FL100: ' + str(self.rodBelowFL100) + '@' + str(self.speedBelowFL100) + \
-               ', Vapp: ' + str(self.speedApproach)
+        return 'ICAO: ' + self.icao + ', FL240: ' + str(self.RodAboveFL240) + '@' + str(self.SpeedAboveFL240) + \
+               ', +FL100: ' + str(self.RodAboveFL100) + '@' + str(self.SpeedAboveFL100) + \
+               ', -FL100: ' + str(self.RodBelowFL100) + '@' + str(self.SpeedBelowFL100) + \
+               ', Vapp: ' + str(self.SpeedApproach)

aman/types/Runway.py

@@ -0,0 +1,12 @@
+#!/usr/bin/env python
+
+from aman.types.Waypoint import Waypoint
+
+class Runway:
+    def __init__(self, start : Waypoint, end : Waypoint):
+        self.Name = start.Name
+        self.Start = start
+        self.End = end
+
+    def heading(self):
+        return self.Start.bearing(self.End)

aman/types/Waypoint.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python
 
-from sklearn.metrics.pairwise import haversine_distances
 import numpy as np
+import pyproj
 
 class Waypoint:
     def dms2dd(coordinate : str):
@@ -20,14 +20,59 @@ class Waypoint:
 
         return dd
 
-    def __init__(self, name : str, latitude : float, longitude : float):
-        self.name = name
-        self.coordinate = np.array([ latitude, longitude ])
+    def coordinateArgument(value):
+        if True == isinstance(value, str):
+            return Waypoint.dms2dd(value)
+        elif True == isinstance(value, (float, int)):
+            return float(value)
+        else:
+            raise Exception('Invalid constructor argument')
+
+    def __init__(self, **kwargs):
+        self.Name = None
+        self.Coordinate = None
+        self.Altitude = None
+        self.Speed = None
+        self.BaseTurn = False
+        self.FinalTurn = False
+
+        latitude = None
+        longitude = None
+        for key, value in kwargs.items():
+            if 'name' == key.lower():
+                self.Name = str(value)
+            elif 'latitude' == key.lower():
+                latitude = Waypoint.coordinateArgument(value)
+            elif 'longitude' == key.lower():
+                longitude = Waypoint.coordinateArgument(value)
+            elif 'altitude' == key.lower():
+                self.Altitude = int(value)
+            elif 'speed' == key.lower():
+                self.Speed = int(value)
+            elif 'base' == key:
+                self.BaseTurn = bool(value)
+            elif 'final' == key:
+                self.FinalTurn = bool(value)
+            else:
+                raise Exception('Invalid constructor argument: ' + key)
+
+        if None != latitude and None != longitude:
+            self.Coordinate = np.array([ latitude, longitude ])
 
     def __str__(self):
-        return 'Name: ' + self.name + ', Lat: ' + str(self.coordinate[0]) + ', Lon: ' + str(self.coordinate[1])
+        return 'Name: ' + self.Name + ', Lat: ' + str(self.Coordinate[0]) + ', Lon: ' + str(self.Coordinate[1])
 
     def haversine(self, other):
-        self_radians = [np.radians(_) for _ in self.coordinate]
-        other_radians = [np.radians(_) for _ in other.coordinate]
-        return 6371.0 * haversine_distances([self_radians, other_radians])[0][1]
+        geodesic = pyproj.Geod(ellps='WGS84')
+        _, _, distance = geodesic.inv(self.Coordinate[1], self.Coordinate[0], other.Coordinate[1], other.Coordinate[0])
+        return distance / 1000.0 * 0.539957
+
+    def bearing(self, other):
+        geodesic = pyproj.Geod(ellps='WGS84')
+        forward, _, _ = geodesic.inv(self.Coordinate[1], self.Coordinate[0], other.Coordinate[1], other.Coordinate[0])
+        return forward
+
+    def project(self, bearing, distance):
+        geodesic = pyproj.Geod(ellps='WGS84')
+        longitude, latitude, _ = geodesic.fwd(self.Coordinate[1], self.Coordinate[0], bearing, distance)
+        return np.array([ latitude, longitude ])        

icao/recat.py

@@ -1,22 +0,0 @@
-# Recat departure separation in seconds
-# x = CAT A -> CAT F
-# y = CAT A -> CAT F
-# https://www.skybrary.aero/index.php/RECAT_-_Wake_Turbulence_Re-categorisation
-recatDeparture = [
-    [0, 100, 120, 140, 160, 180],
-    [0, 0, 0, 100, 120, 140],
-    [0, 0, 0, 80, 100, 120],
-    [0, 0, 0, 0, 0, 120],
-    [0, 0, 0, 0, 0, 100],
-    [0, 0, 0, 0, 0, 80],
-]
-
-#Recat Arrival in NM
-recatArrival = [
-    [3, 4, 5, 5, 6, 8],
-    [0, 3, 4, 4, 5, 7],
-    [0, 0, 3, 3, 4, 6],
-    [0, 0, 0, 0, 0, 5],
-    [0, 0, 0, 0, 0, 4],
-    [0, 0, 0, 0, 0, 3],
-]

main.py

@@ -1,10 +0,0 @@
-from tcp.TCPServer import TCPServer
-
-
-def main():
-    server = TCPServer()
-    server.run()
-
-
-if __name__ == "__main__":
-    main()

setup.py

@@ -63,6 +63,7 @@ class build_py(_build_py):
         generateProtobuf('src/protobuf/AircraftReport.proto')
         generateProtobuf('src/protobuf/AircraftSchedule.proto')
         generateProtobuf('src/protobuf/BaseTypes.proto')
+        generateProtobuf('src/protobuf/Communication.proto')
         _build_py.run(self)
 
 with open('README.md', 'r') as f:
@@ -77,13 +78,14 @@ setup(
         'aman.config',
         'aman.formats',
         'aman.sys',
+        'aman.sys.aco',
         'aman.tools',
         'aman.types'
     ],
     namespace_packages = [ 'aman' ],
     description = 'AMAN optimization backend',
     long_description = longDescription,
-    author = 'Sven Czarnian',
+    author = 'Sven Czarnian, Pascal Seeler',
     author_email = 'devel@svcz.de',
     license = 'GPLv3',
     cmdclass = { 'clean': clean, 'build_py': build_py },
@@ -94,8 +96,9 @@ setup(
         'numpy',
         'protobuf',
         'pyzmq',
-        'scikit-learn',
         'scipy',
-        'setuptools'
+        'setuptools',
+        'flask',
+        'flask-cors'
     ]
 )