Add features
Add features to a feature layer.
Use case
An end-user performing a survey may want to add features to the map during the course of their work.
How to use the sample
Click on a location on the map to add a feature at that location.
How it works
- Create and load a
ServiceGeodatabase
with a feature service URL. - Get the
ServiceFeatureTable
from the service geodatabase. - Create a
FeatureLayer
from the service feature table. - Create a
Feature
with attributes and a location using theServiceFeatureTable
. - Add the
Feature
to theServiceFeatureTable
. - Apply edits to the
ServiceGeodatabase
by callingapplyEditsAsync
, which will upload the new feature to the online service.
Relevant API
- Feature
- FeatureEditResult
- FeatureLayer
- ServiceFeatureTable
- ServiceGeodatabase
Tags
edit, feature, online service
Sample Code
AddFeaturesSample.java
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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
/*
* Copyright 2017 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.add_features;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.geometry.Point2D;
import javafx.scene.Scene;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.scene.input.MouseButton;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.concurrent.ListenableFuture;
import com.esri.arcgisruntime.data.Feature;
import com.esri.arcgisruntime.data.FeatureTableEditResult;
import com.esri.arcgisruntime.data.ServiceFeatureTable;
import com.esri.arcgisruntime.data.ServiceGeodatabase;
import com.esri.arcgisruntime.geometry.GeometryEngine;
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;
public class AddFeaturesSample extends Application {
private MapView mapView;
private ServiceFeatureTable featureTable;
private static final String SERVICE_LAYER_URL =
"https://sampleserver6.arcgisonline.com/arcgis/rest/services/DamageAssessment/FeatureServer";
@Override
public void start(Stage stage) {
try {
// create stack pane and application scene
StackPane stackPane = new StackPane();
Scene scene = new Scene(stackPane);
// set title, size, and add scene to stage
stage.setTitle("Add Features Sample");
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 streets basemap style
ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS);
// create a map view and set the map to it
mapView = new MapView();
mapView.setMap(map);
// set a viewpoint on the map view
mapView.setViewpoint(new Viewpoint(40, -95, 36978595));
// create a service geodatabase from the service layer url and load it
var serviceGeodatabase = new ServiceGeodatabase(SERVICE_LAYER_URL);
serviceGeodatabase.addDoneLoadingListener(() -> {
// create service feature table from the service geodatabase's table first layer
featureTable = serviceGeodatabase.getTable(0);
// create a feature layer from table
var featureLayer = new FeatureLayer(featureTable);
// add the layer to the ArcGISMap
map.getOperationalLayers().add(featureLayer);
});
serviceGeodatabase.loadAsync();
mapView.setOnMouseClicked(event -> {
// check that the primary mouse button was clicked
if (event.isStillSincePress() && event.getButton() == MouseButton.PRIMARY) {
// create a point from where the user clicked
Point2D point = new Point2D(event.getX(), event.getY());
// create a map point from a point
Point mapPoint = mapView.screenToLocation(point);
// for a wrapped around map, the point coordinates include the wrapped around value
// for a service in projected coordinate system, this wrapped around value has to be normalized
Point normalizedMapPoint = (Point) GeometryEngine.normalizeCentralMeridian(mapPoint);
// add a new feature to the service feature table
addFeature(normalizedMapPoint, featureTable);
}
});
// add the map view to stack pane
stackPane.getChildren().addAll(mapView);
} catch (Exception e) {
// on any error, display the stack trace
e.printStackTrace();
}
}
/**
* Adds a new Feature to a ServiceFeatureTable and applies the changes to the
* server.
*
* @param mapPoint location to add feature
* @param featureTable service feature table to add feature
*/
private void addFeature(Point mapPoint, ServiceFeatureTable featureTable) {
// create default attributes for the feature
Map<String, Object> attributes = new HashMap<>();
attributes.put("typdamage", "Destroyed");
attributes.put("primcause", "Earthquake");
// creates a new feature using default attributes and point
Feature feature = featureTable.createFeature(attributes, mapPoint);
// check if feature can be added to feature table
if (featureTable.canAdd()) {
// add the new feature to the feature table and to server
featureTable.addFeatureAsync(feature).addDoneListener(() -> applyEdits(featureTable));
} else {
displayMessage(null, "Cannot add a feature to this feature table");
}
}
/**
* Sends any edits on the ServiceFeatureTable to the server.
*
* @param featureTable service feature table
*/
private void applyEdits(ServiceFeatureTable featureTable) {
// apply the changes to the server
ListenableFuture<List<FeatureTableEditResult>> editResult = featureTable.getServiceGeodatabase().applyEditsAsync();
editResult.addDoneListener(() -> {
try {
List<FeatureTableEditResult> edits = editResult.get();
// check if the server edit was successful
if (edits != null && edits.size() > 0) {
var featureEditResult = edits.get(0).getEditResult().get(0);
if (!featureEditResult.hasCompletedWithErrors()) {
displayMessage(null, "Feature successfully added");
} else {
throw featureEditResult.getError();
}
}
} catch (InterruptedException | ExecutionException e) {
displayMessage("Exception applying edits on server", e.getCause().getMessage());
}
});
}
/**
* Shows a message in an alert dialog.
*
* @param title title of alert
* @param message message to display
*/
private void displayMessage(String title, String message) {
Platform.runLater(() -> {
Alert dialog = new Alert(AlertType.INFORMATION);
dialog.initOwner(mapView.getScene().getWindow());
dialog.setHeaderText(title);
dialog.setContentText(message);
dialog.showAndWait();
});
}
/**
* 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);
}
}