Added Warning messages for no internet when loading maps

src/main/java/seng202/group9/Controller/App.java

@@ -87,7 +87,7 @@ public class App extends Application
 				if (datasets.get(i).getName().equals(session.getCurrentDataset())) {
 					currentDataset = datasets.get(i);
 
-					if (session.getFilteredAirlines().size() == 0) {
+					if (session.getFilteredAirlines().size() == 0 || session.getFilteredAirlines() == null) {
 						HashMap<Integer, String> airlinesHM = new HashMap<Integer, String>();
 						ArrayList<Airline> airlines = currentDataset.getAirlines();
 						for (int index = 0; index < airlines.size(); index++) {
@@ -96,7 +96,7 @@ public class App extends Application
 						session.setFilteredAirlines(airlinesHM);
 					}
 
-					if (session.getFilteredAirports().size() == 0) {
+					if (session.getFilteredAirports().size() == 0 || session.getFilteredAirports() == null) {
 						HashMap<Integer, String> airportsHM = new HashMap<Integer, String>();
 						ArrayList<Airport> airports = currentDataset.getAirports();
 						for (int index = 0; index < airports.size(); index++) {
@@ -105,15 +105,14 @@ public class App extends Application
 						session.setFilteredAirports(airportsHM);
 					}
 
-					if (session.getFilteredRoutes().size() == 0) {
+					if (session.getFilteredRoutes().size() == 0 || session.getFilteredRoutes() == null) {
 						HashMap<Integer, String> routesHM = new HashMap<Integer, String>();
 						ArrayList<Route> routes = currentDataset.getRoutes();
 						for (int index = 0; index < routes.size(); index++) {
 							routesHM.put(index, routes.get(index).getUniqueKey());
 						}
-						session.setFilteredAirports(routesHM);
+						session.setFilteredRoutes(routesHM);
 					}
-					//session.setFilteredRoutes();
 				}
 			}
 		}
@@ -255,6 +254,27 @@ public class App extends Application
 	public void setCurrentDataset(Dataset dataset){
 		currentDataset = dataset;
 		session.setCurrentDataset(currentDataset.getName());
+
+		HashMap<Integer, String> airlinesHM = new HashMap<Integer, String>();
+		ArrayList<Airline> airlines = currentDataset.getAirlines();
+		for (int index = 0; index < airlines.size(); index++) {
+			airlinesHM.put(index, airlines.get(index).getName());
+		}
+		session.setFilteredAirlines(airlinesHM);
+
+		HashMap<Integer, String> airportsHM = new HashMap<Integer, String>();
+		ArrayList<Airport> airports = currentDataset.getAirports();
+		for (int index = 0; index < airports.size(); index++) {
+			airportsHM.put(index, airports.get(index).getName());
+		}
+		session.setFilteredAirports(airportsHM);
+
+		HashMap<Integer, String> routesHM = new HashMap<Integer, String>();
+		ArrayList<Route> routes = currentDataset.getRoutes();
+		for (int index = 0; index < routes.size(); index++) {
+			routesHM.put(index, routes.get(index).getUniqueKey());
+		}
+		session.setFilteredRoutes(routesHM);
 	}
 
 	/**

src/main/java/seng202/group9/GUI/AirlineGraphController.java

@@ -113,11 +113,11 @@ public class AirlineGraphController extends Controller{
                 countries.put(airline.getCountryName(), 1);
             }
         }
-
         int length = 10;
-        if (airlinesFiltered.length < 10){
-            length = airlinesFiltered.length;
+        if (countries.size() < 10){
+            length = countries.size();
         }
+
         for (int i = 0 ; i < length; i ++) {
             int max = 0;
             String maxCountry = null;
@@ -130,7 +130,6 @@ public class AirlineGraphController extends Controller{
             series.getData().add(new XYChart.Data<String, Integer>(maxCountry, max));
             countries.remove(maxCountry);
         }
-
         countryGraph.getData().add(series);
     }
 

src/main/java/seng202/group9/GUI/AirportGraphController.java

@@ -90,8 +90,8 @@ public class AirportGraphController extends Controller{
         }
 
         int length = 10;
-        if (airportsFiltered.length < 10){
-            length = airportsFiltered.length;
+        if (countries.size() < 10){
+            length = countries.size();
         }
         for (int i = 0 ; i < length; i ++) {
             int max = 0;

src/main/java/seng202/group9/GUI/AirportRDController.java

@@ -131,9 +131,9 @@ public class AirportRDController extends Controller{
 
     /**
      * Analyses the current data and creates a graph based on the data.
-     * @see PieGraphController
+     *
      */
-    public void analyse_Button(){ replaceSceneContent(SceneCode.AIRPORT_ANALYSER);}
+    public void analyse_Button(){ replaceSceneContent(SceneCode.AIRPORT_GRAPHS);}
 
     public void airportSummaryButton() {
         replaceSceneContent(SceneCode.AIRPORT_SUMMARY);

src/main/java/seng202/group9/GUI/AirportRouteMapController.java

@@ -7,6 +7,7 @@ import javafx.collections.FXCollections;
 import javafx.collections.ListChangeListener;
 import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
+import javafx.scene.control.Alert;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.cell.PropertyValueFactory;
@@ -38,6 +39,14 @@ public class AirportRouteMapController extends Controller{
         if (!checkDataset()){
             return;
         }
+        //check if there is internet connectivity
+        if (!getParent().testInet("maps.google.com")){
+            Alert alert = new Alert(Alert.AlertType.WARNING);
+            alert.setTitle("No Internet Connection.");
+            alert.setHeaderText("Unable to Connect to Google Maps");
+            alert.setContentText("As we are unable to connect to Google Maps all applications which are supposed to display maps may not work as intended.");
+            alert.showAndWait();
+        }
         currentDataset = getParent().getCurrentDataset();
         //Sets up map.
         map = new Map(mapView, new RoutePath(), airportsTable);

src/main/java/seng202/group9/GUI/DatasetController.java

@@ -72,9 +72,11 @@ public class DatasetController extends Controller{
 
     public void openDataset(){
         Dataset datasetToOpen = (Dataset) datasetView.getSelectionModel().getSelectedItem();
-        getParent().setCurrentDataset(datasetToOpen);
-        loadTable();
-        getParent().getMenuController().replaceSceneContent(getParent().getSession().getSceneDisplayed());
-        ((Stage) openDataset.getScene().getWindow()).close();
+        if (datasetToOpen != null) {
+            getParent().setCurrentDataset(datasetToOpen);
+            loadTable();
+            getParent().getMenuController().replaceSceneContent(getParent().getSession().getSceneDisplayed());
+            ((Stage) openDataset.getScene().getWindow()).close();
+        }
     }
 }

src/main/java/seng202/group9/GUI/EquipByRouteController.java

@@ -5,6 +5,7 @@ import javafx.beans.value.ObservableValue;
 import javafx.collections.FXCollections;
 import javafx.collections.ObservableList;
 import javafx.fxml.FXML;
+import javafx.scene.control.Alert;
 import javafx.scene.control.TableColumn;
 import javafx.scene.control.TableView;
 import javafx.scene.control.cell.PropertyValueFactory;
@@ -41,6 +42,14 @@ public class EquipByRouteController extends Controller{
         if (!checkDataset()){
             return;
         }
+        //check if there is internet connectivity
+        if (!getParent().testInet("maps.google.com")){
+            Alert alert = new Alert(Alert.AlertType.WARNING);
+            alert.setTitle("No Internet Connection.");
+            alert.setHeaderText("Unable to Connect to Google Maps");
+            alert.setContentText("As we are unable to connect to Google Maps all applications which are supposed to display maps may not work as intended.");
+            alert.showAndWait();
+        }
         currentDataset = getParent().getCurrentDataset();
         //Sets up map.
         map = new Map(mapView, new RoutePath(), equipTable);

src/main/java/seng202/group9/GUI/PopUpAirportMapController.java

@@ -1,6 +1,7 @@
 package seng202.group9.GUI;
 
 import javafx.fxml.FXML;
+import javafx.scene.control.Alert;
 import javafx.scene.control.TableView;
 import javafx.scene.web.WebView;
 import seng202.group9.Controller.Dataset;
@@ -24,6 +25,14 @@ public class PopUpAirportMapController extends Controller {
 
     @Override
     public void load() {
+        //check if there is internet connectivity
+        if (!getParent().testInet("maps.google.com")){
+            Alert alert = new Alert(Alert.AlertType.WARNING);
+            alert.setTitle("No Internet Connection.");
+            alert.setHeaderText("Unable to Connect to Google Maps");
+            alert.setContentText("As we are unable to connect to Google Maps all applications which are supposed to display maps may not work as intended.");
+            alert.showAndWait();
+        }
         dataset = getParent().getCurrentDataset();
         loadAirports();
     }
@@ -36,12 +45,4 @@ public class PopUpAirportMapController extends Controller {
         }
         map = new Map(mapView, routePaths, Map.loadAirports);
     }
-
-    public void loadRoutes(ArrayList<Route> routes){
-        ArrayList<RoutePath> routePaths = new ArrayList<>();
-        for (Route route: routes){
-            routePaths.add(route.getRoutePath());
-        }
-        map.displayRoutes(routePaths);
-    }
 }

src/main/java/seng202/group9/GUI/PopUpRouteMapController.java

@@ -1,6 +1,7 @@
 package seng202.group9.GUI;
 
 import javafx.fxml.FXML;
+import javafx.scene.control.Alert;
 import javafx.scene.web.WebView;
 import seng202.group9.Controller.Dataset;
 import seng202.group9.Core.Route;
@@ -21,6 +22,14 @@ public class PopUpRouteMapController extends Controller{
 
     @Override
     public void load() {
+        //check if there is internet connectivity
+        if (!getParent().testInet("maps.google.com")){
+            Alert alert = new Alert(Alert.AlertType.WARNING);
+            alert.setTitle("No Internet Connection.");
+            alert.setHeaderText("Unable to Connect to Google Maps");
+            alert.setContentText("As we are unable to connect to Google Maps all applications which are supposed to display maps may not work as intended.");
+            alert.showAndWait();
+        }
         dataset = getParent().getCurrentDataset();
         loadRoutes();
     }

src/main/java/seng202/group9/GUI/RouteGraphController.java

@@ -1,5 +1,6 @@
 package seng202.group9.GUI;
 
+import javafx.collections.FXCollections;
 import javafx.fxml.FXML;
 import javafx.scene.chart.BarChart;
 import javafx.scene.chart.CategoryAxis;
@@ -15,10 +16,7 @@ import seng202.group9.Core.Airline;
 import seng202.group9.Core.Airport;
 import seng202.group9.Core.Route;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.LinkedHashMap;
+import java.util.*;
 
 /**
  * Created by fwy13 on 2/10/2016.
@@ -60,9 +58,9 @@ public class RouteGraphController extends Controller{
     @FXML
     private PieChart stopsGraph;
     @FXML
-    private BarChart contienentGraph;
+    private BarChart zoneGraph;
     @FXML
-    private CategoryAxis contienentXAxis;
+    private CategoryAxis zoneXAxis;
 
     @Override
     public void load() {
@@ -95,6 +93,8 @@ public class RouteGraphController extends Controller{
         loadOutCountryGraph();
         loadEquipGraph();
         loadSimilarGraph();
+        loadStopsGraph();
+        loadZoneGraph();
     }
 
     public void loadAirlineGraph(){
@@ -328,7 +328,6 @@ public class RouteGraphController extends Controller{
         equipGraph.getData().add(series);
     }
 
-
     public void loadSimilarGraph(){
         similarGraph.setTitle("Top 10 Most Similar Routes");
         similarXAxis.setLabel("Routes");
@@ -364,41 +363,66 @@ public class RouteGraphController extends Controller{
         similarGraph.getData().add(series);
     }
 
-    /*public void loadStopsGraph(){
-        stopsGraph.setTitle("Top 10 Equipment used by Routes");
-        XYChart.Series<String,Integer> series = new XYChart.Series<>();
-        series.setName("Number of Equipment");
-        HashMap<String, Integer> equipmentList = new HashMap<>();//equipment, count
+    public void loadStopsGraph(){
+        stopsGraph.setTitle("Top 10 Most Common Amount of Stops by Routes");
+        ArrayList<PieChart.Data> data = new ArrayList<>();
+        HashMap<Integer, Integer> stops = new HashMap<>();//equipment, count
         for (Route route: routesFiltered){
-            String equipment[] = route.getEquipment().split(" ");
-            for (String equip : equipment){
-                if (equipmentList.containsKey(equip)){
-                    equipmentList.put(equip, equipmentList.get(equip) + 1);
-                }else{
-                    equipmentList.put(equip, 1);
-                }
+            if (stops.containsKey(route.getStops())){
+                stops.put(route.getStops(), stops.get(route.getStops()) + 1);
+            }else{
+                stops.put(route.getStops(), 1);
             }
         }
 
+        for (int stop: stops.keySet()){
+            stopsGraph.getData().add(new PieChart.Data(String.valueOf(stop), stops.get(stop)));
+        }
+
+    }
+
+    public void loadZoneGraph(){
+        zoneGraph.setTitle("Top Zones With Flights.");
+        zoneXAxis.setLabel("Zones");
+        XYChart.Series<String,Integer> series = new XYChart.Series<>();
+        series.setName("Number of Zones");
+        LinkedHashMap<String, Integer> zones = new LinkedHashMap<>();
+        for (Route route: routesFiltered) {
+            Airport source = route.getSourceAirport();
+            if (source != null){
+                if (zones.containsKey(source.getTz())) {
+                    zones.put(source.getTz(), zones.get(source.getTz()) + 1);
+                } else {
+                    zones.put(source.getTz(), 1);
+                }
+            }
+            Airport dest = route.getDestinationAirport();
+            if (dest != null){
+                if (zones.containsKey(dest.getTz())) {
+                    zones.put(dest.getTz(), zones.get(dest.getTz()) + 1);
+                } else {
+                    zones.put(dest.getTz(), 1);
+                }
+            }
+        }
         int length = 10;
-        if (equipmentList.size() < 10){
-            length = equipmentList.size();
+        if (zones.size() < 10){
+            length = zones.size();
         }
         for (int i = 0 ; i < length; i ++) {
             int max = 0;
-            String maxEquip = "";
-            for (String equip: equipmentList.keySet()){
-                if (equipmentList.get(equip) > max){
-                    max = equipmentList.get(equip);
-                    maxEquip = equip;
+            String maxZone = null;
+            for (String zone: zones.keySet()){
+                if (zones.get(zone) > max){
+                    maxZone = zone;
+                    max = zones.get(zone);
                 }
             }
-            series.getData().add(new XYChart.Data<String, Integer>(maxEquip, max));
-            equipmentList.remove(maxEquip);
+            series.getData().add(new XYChart.Data<String, Integer>(maxZone, max));
+            zones.remove(maxZone);
         }
-
-        equipGraph.getData().add(series);
-    }*/
+        zoneGraph.getData().add(series);
+    }
 
     public void goToRawData(){
         replaceSceneContent(SceneCode.ROUTE_RAW_DATA);

src/main/java/seng202/group9/GUI/RouteRDController.java

@@ -127,10 +127,10 @@ public class RouteRDController extends Controller {
 
     /**
      * Analyses the current data and creates a graph based on the data.
-     * @see BarGraphController
+     *
      */
     public void analyse_Button() {
-        replaceSceneContent(SceneCode.ROUTE_ANALYSER);
+        replaceSceneContent(SceneCode.ROUTE_GRAPHS);
     }
 
     public void routeSummaryButton() {

src/main/java/seng202/group9/Map/Map.java

@@ -36,6 +36,7 @@ public class Map {
                     }
                 }
             });
+
     }
 
     public Map(WebView webView, final ArrayList<RoutePath> newRoute, final int type){

src/main/resources/map.html

@@ -28,6 +28,10 @@
             center: {lat: 39.144684, lng: -84.510079},
             zoom: 5
         });
+        google.maps.event.addListener(map, 'center_changed', function() {
+            checkBounds(map);
+        });
+        map.setOptions({ minZoom: 2, maxZoom: 18});
 
         new google.maps.Marker({
             position: {lat: 39.144684, lng: -84.510079},
@@ -42,6 +46,12 @@
             zoom: 5
         });
 
+
+        google.maps.event.addListener(map, 'center_changed', function() {
+            checkBounds(map);
+        });
+        map.setOptions({ minZoom: 2, maxZoom: 18});
+
         new google.maps.Marker({
             position: position[0],
             map: map,
@@ -54,6 +64,11 @@
             center: positions[0],
             zoom: 5
         });
+
+        google.maps.event.addListener(map, 'center_changed', function() {
+            checkBounds(map);
+        });
+        map.setOptions({ minZoom: 2, maxZoom: 18});
         for (var i = 0; i < positions.length; i ++) {
             new google.maps.Marker({
                 position: positions[i][0],
@@ -69,6 +84,11 @@
             center: {lat: 39.144684, lng: -84.510079},
             zoom: 15
         });
+
+        google.maps.event.addListener(map, 'center_changed', function() {
+            checkBounds(map);
+        });
+        map.setOptions({ minZoom: 2, maxZoom: 18});
         // CLEAR EXISTING MARKERS
         if (marker1 !== undefined && marker2 !== undefined && path !== undefined) {
             marker1.setMap(null);
@@ -110,6 +130,11 @@
             center: {lat: 0, lng: 0},
             zoom: 5
         });
+
+        google.maps.event.addListener(map, 'center_changed', function() {
+            checkBounds(map);
+        });
+        map.setOptions({ minZoom: 2, maxZoom: 18});
         for (var i = 0; i < flightPaths.length; i++) {
             var tempMarker1 = null;
             var tempMarker2 = null;
@@ -165,6 +190,31 @@
 
         map.fitBounds(bounds);
     }
+
+    function checkBounds(map) {
+
+        var latNorth = map.getBounds().getNorthEast().lat();
+        var latSouth = map.getBounds().getSouthWest().lat();
+        var newLat;
+
+        if(latNorth<85 && latSouth>-85)     /* in both side -> it's ok */
+            return;
+        else {
+            if(latNorth>85 && latSouth<-85)   /* out both side -> it's ok */
+                return;
+            else {
+                if(latNorth>85)
+                    newLat =  map.getCenter().lat() - (latNorth-85);   /* too north, centering */
+                if(latSouth<-85)
+                    newLat =  map.getCenter().lat() - (latSouth+85);   /* too south, centering */
+            }
+        }
+        //re-centre the map
+        if(newLat) {
+            var newCenter= new google.maps.LatLng( newLat ,map.getCenter().lng() );
+            map.setCenter(newCenter);
+        }
+    }
 </script>
 <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBnt2PJyKZsh-qrsTkbZwSGuUNWPromlLg&callback=initMap" defer></script>
 </body>

src/main/resources/route_graphs.fxml

@@ -164,13 +164,13 @@
                   </AnchorPane>
               </content>
             </Tab>
-            <Tab text="Routes to Continent">
+            <Tab text="Zones Graph">
               <content>
                 <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="180.0" prefWidth="200.0">
                      <children>
-                        <BarChart fx:id="contienentGraph" layoutX="224.0" layoutY="18.0" prefHeight="436.0" prefWidth="800.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
+                        <BarChart fx:id="zoneGraph" layoutX="224.0" layoutY="18.0" prefHeight="436.0" prefWidth="800.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
                           <xAxis>
-                            <CategoryAxis fx:id="contienentXAxis" side="BOTTOM" />
+                            <CategoryAxis fx:id="zoneXAxis" side="BOTTOM" />
                           </xAxis>
                           <yAxis>
                             <NumberAxis side="LEFT" />