Display WFS layer

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 /*  * Copyright 2019 Esri.  *  * Licensed under the Apache License, Version 2.0 (the "License"); you may not  * use this file except in compliance with the License. You may obtain a copy of  * the License at  *  * http://www.apache.org/licenses/LICENSE-2.0  *  * Unless required by applicable law or agreed to in writing, software  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the  * License for the specific language governing permissions and limitations under  * the License.  */  package com.esri.samples.display_wfs_layer;  import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.layout.StackPane; import javafx.scene.paint.Color; import javafx.stage.Stage;  import com.esri.arcgisruntime.ArcGISRuntimeEnvironment; import com.esri.arcgisruntime.data.QueryParameters; import com.esri.arcgisruntime.data.ServiceFeatureTable; import com.esri.arcgisruntime.geometry.Envelope; import com.esri.arcgisruntime.geometry.Point; import com.esri.arcgisruntime.layers.FeatureLayer; import com.esri.arcgisruntime.mapping.ArcGISMap; import com.esri.arcgisruntime.mapping.BasemapStyle; import com.esri.arcgisruntime.mapping.Viewpoint; import com.esri.arcgisruntime.mapping.view.MapView; import com.esri.arcgisruntime.ogc.wfs.WfsFeatureTable; import com.esri.arcgisruntime.symbology.SimpleLineSymbol; import com.esri.arcgisruntime.symbology.SimpleRenderer;  public class DisplayWFSLayerSample extends Application {   private MapView mapView;   @Override  public void start(Stage stage) {   // create stack pane and JavaFX app scene  StackPane stackPane = new StackPane();  Scene scene = new Scene(stackPane);   // set title, size, and add JavaFX scene to stage  stage.setTitle("Display a WFS Layer");  stage.setWidth(800);  stage.setHeight(700);  stage.setScene(scene);  stage.show();   // authentication with an API key or named user is required to access basemaps and other location services  String yourAPIKey = System.getProperty("apiKey");  ArcGISRuntimeEnvironment.setApiKey(yourAPIKey);   // create a map with the topographic basemap style  ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_TOPOGRAPHIC);   // create a map view and set the map to it  mapView = new MapView();  mapView.setMap(map);   // create an initial extent to load  Point topLeft = new Point(-13619002.499764, 6043406.351867);  Point bottomRight = new Point(-13618454.919189, 6042836.793464);  Envelope initialExtent = new Envelope(topLeft, bottomRight);  mapView.setViewpoint(new Viewpoint(initialExtent));   String serviceUrl = "https://dservices2.arcgis.com/ZQgQTuoyBrtmoGdP/arcgis/services/Seattle_Downtown_Features/WFSServer?service=wfs&request=getcapabilities";  String LayerName = "Seattle_Downtown_Features:Buildings";   // create a FeatureTable from the WFS service URL and name of the layer  WfsFeatureTable wfsFeatureTable = new WfsFeatureTable(serviceUrl, LayerName);   // set the feature request mode to manual. The table must be manually populated as panning and zooming won't request features automatically.  wfsFeatureTable.setFeatureRequestMode(ServiceFeatureTable.FeatureRequestMode.MANUAL_CACHE);   // create a feature layer to visualize the WFS features  FeatureLayer wfsFeatureLayer = new FeatureLayer(wfsFeatureTable);   // apply a renderer to the feature layer  SimpleRenderer renderer = new SimpleRenderer(new SimpleLineSymbol(SimpleLineSymbol.Style.SOLID, Color.RED, 3));  wfsFeatureLayer.setRenderer(renderer);   // add the layer to the map's operational layers  map.getOperationalLayers().add(wfsFeatureLayer);   // make an initial call to load the initial extent's data from the WFS, using the WFS spatial reference  populateFeaturesFromServer(wfsFeatureTable, initialExtent);   // use the navigation property listener to populate the table with the features needed for the current extent  mapView.navigatingProperty().addListener((observable, oldValue, newValue) -> {  // once the map view has stopped navigating  if (!newValue) {  populateFeaturesFromServer(wfsFeatureTable, mapView.getVisibleArea().getExtent());  }  });   // add the mapview to the stackpane  stackPane.getChildren().add(mapView);  }   /**  * Create query parameters using the given extent to populate the WFS table from the service  * @param wfsTable the WFS feature table to populate  * @param extent the extent used to define the QueryParameters' geometry  */  private void populateFeaturesFromServer(WfsFeatureTable wfsTable, Envelope extent){   // create a query based on the current visible extent  QueryParameters visibleExtentQuery = new QueryParameters();  visibleExtentQuery.setGeometry(extent);  visibleExtentQuery.setSpatialRelationship(QueryParameters.SpatialRelationship.INTERSECTS);  // populate the WFS feature table based on the current extent  wfsTable.populateFromServiceAsync(visibleExtentQuery, false, null);  }   /**  * Stops and releases all resources used in application.  */  @Override  public void stop() {  if (mapView != null) {  mapView.dispose();  }  }   /**  * Opens and runs application.  *  * @param args arguments passed to this application  */  public static void main(String[] args) {   Application.launch(args);  } }