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/*
* Copyright 2020 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.perform_valve_isolation_trace;
import com.esri.arcgisruntime.ArcGISRuntimeEnvironment;
import com.esri.arcgisruntime.data.ArcGISFeature;
import com.esri.arcgisruntime.data.QueryParameters;
import com.esri.arcgisruntime.data.ServiceGeodatabase;
import com.esri.arcgisruntime.geometry.Geometry;
import com.esri.arcgisruntime.geometry.GeometryEngine;
import com.esri.arcgisruntime.geometry.Point;
import com.esri.arcgisruntime.geometry.Polyline;
import com.esri.arcgisruntime.geometry.ProximityResult;
import com.esri.arcgisruntime.layers.FeatureLayer;
import com.esri.arcgisruntime.loadable.LoadStatus;
import com.esri.arcgisruntime.mapping.ArcGISMap;
import com.esri.arcgisruntime.mapping.BasemapStyle;
import com.esri.arcgisruntime.mapping.Viewpoint;
import com.esri.arcgisruntime.mapping.view.Graphic;
import com.esri.arcgisruntime.mapping.view.GraphicsOverlay;
import com.esri.arcgisruntime.mapping.view.MapView;
import com.esri.arcgisruntime.security.UserCredential;
import com.esri.arcgisruntime.symbology.SimpleMarkerSymbol;
import com.esri.arcgisruntime.symbology.SimpleRenderer;
import com.esri.arcgisruntime.utilitynetworks.*;
import javafx.fxml.FXML;
import javafx.geometry.Point2D;
import javafx.scene.control.Alert;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ChoiceDialog;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.ProgressIndicator;
import javafx.scene.input.MouseButton;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.GridPane;
import javafx.scene.paint.Color;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Optional;
import java.util.List;
import java.util.UUID;
public class PerformValveIsolationTraceController {
@FXML private MapView mapView;
@FXML private ProgressIndicator progressIndicator;
@FXML private ComboBox<UtilityCategory> categorySelectionComboBox;
@FXML private Button resetButton;
@FXML private Button traceButton;
@FXML private Label promptLabel;
@FXML private Label statusLabel;
@FXML private CheckBox includeIsolatedFeaturesCheckbox;
private GraphicsOverlay filterBarriersGraphicsOverlay;
private UtilityNetwork utilityNetwork;
private UtilityTraceConfiguration traceConfiguration;
private UtilityTraceParameters utilityTraceParameters;
private UtilityElement startingLocation;
public void initialize() {
try {
// 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 night basemap style and set it to the map view
ArcGISMap map = new ArcGISMap(BasemapStyle.ARCGIS_STREETS_NIGHT);
mapView.setMap(map);
String featureServiceURL =
"https://sampleserver7.arcgisonline.com/server/rest/services/UtilityNetwork/NapervilleGas/FeatureServer";
// set user credentials to authenticate with the service
// NOTE: a licensed user is required to perform utility network operations
var userCredential = new UserCredential("viewer01", "I68VGU^nMurF");
// create a new service geodatabase from the feature service url and set the user credential
var serviceGeodatabase = new ServiceGeodatabase(featureServiceURL);
serviceGeodatabase.setCredential(userCredential);
// load the service geodatabase and get tables by their layer IDs
serviceGeodatabase.loadAsync();
serviceGeodatabase.addDoneLoadingListener(() -> {
if (serviceGeodatabase.getLoadStatus() == LoadStatus.LOADED) {
// the gas device layer ./0 and gas line layer ./3 are created from the service geodatabase
var gasDeviceFeatureLayer = new FeatureLayer(serviceGeodatabase.getTable(0));
var gasLineFeatureLayer = new FeatureLayer(serviceGeodatabase.getTable(3));
// add the utility network feature layers to the map for display
map.getOperationalLayers().addAll(Arrays.asList(gasDeviceFeatureLayer, gasLineFeatureLayer));
// create and add the utility network to the map before loading
utilityNetwork = new UtilityNetwork(featureServiceURL);
map.getUtilityNetworks().add(utilityNetwork);
// load the utility network
utilityNetwork.loadAsync();
utilityNetwork.addDoneLoadingListener(() -> {
if (utilityNetwork.getLoadStatus() == LoadStatus.LOADED) {
// get a trace configuration from a tier
UtilityNetworkDefinition networkDefinition = utilityNetwork.getDefinition();
UtilityDomainNetwork domainNetwork = networkDefinition.getDomainNetwork("Pipeline");
UtilityTier tier = domainNetwork.getTier("Pipe Distribution System");
traceConfiguration = tier.getDefaultTraceConfiguration();
// create a trace filter
traceConfiguration.setFilter(new UtilityTraceFilter());
// get a default starting location
UtilityNetworkSource networkSource = networkDefinition.getNetworkSource("Gas Device");
UtilityAssetGroup assetGroup = networkSource.getAssetGroup("Meter");
UtilityAssetType assetType = assetGroup.getAssetType("Customer");
startingLocation = utilityNetwork.createElement(assetType, UUID.fromString("98A06E95-70BE-43E7-91B7-E34C9D3CB9FF"));
// create new base trace parameters
utilityTraceParameters = new UtilityTraceParameters(UtilityTraceType.ISOLATION, Collections.singletonList(startingLocation));
// get the first feature for the starting location, and get its geometry
utilityNetwork.fetchFeaturesForElementsAsync(Collections.singletonList(startingLocation)).toCompletableFuture()
.whenComplete((startingLocationFeatures, ex) -> {
if (ex == null) {
if (!startingLocationFeatures.isEmpty()) {
Geometry startingLocationGeometry = startingLocationFeatures.get(0).getGeometry();
if (startingLocationGeometry instanceof Point) {
Point startingLocationGeometryPoint = (Point) startingLocationGeometry;
// create a graphics overlay for the starting location and add it to the map view
var startingLocationGraphicsOverlay = new GraphicsOverlay();
mapView.getGraphicsOverlays().add(startingLocationGraphicsOverlay);
// create and apply a renderer for the starting point graphics overlay
var startingPointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CROSS, Color.LIGHTGREEN, 25);
startingLocationGraphicsOverlay.setRenderer(new SimpleRenderer(startingPointSymbol));
// create a graphic for the starting location and add it to the graphics overlay
var startingLocationGraphic = new Graphic(startingLocationGeometry, startingPointSymbol);
startingLocationGraphicsOverlay.getGraphics().add(startingLocationGraphic);
// create a graphics overlay for filter barriers and add it to the map view
filterBarriersGraphicsOverlay = new GraphicsOverlay();
mapView.getGraphicsOverlays().add(filterBarriersGraphicsOverlay);
// create and apply a renderer for the filter barriers graphics overlay
var barrierPointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbol.Style.CROSS, Color.RED, 25);
filterBarriersGraphicsOverlay.setRenderer(new SimpleRenderer(barrierPointSymbol));
// set the map's viewpoint to the starting location
mapView.setViewpointAsync(new Viewpoint(startingLocationGeometryPoint, 3000));
// build the choice list for categories populated with the 'Name' property of each 'UtilityCategory' in the 'UtilityNetworkDefinition'
categorySelectionComboBox.getItems().addAll(networkDefinition.getCategories());
categorySelectionComboBox.getSelectionModel().select(0);
categorySelectionComboBox.setCellFactory(param -> new UtilityCategoryListCell());
categorySelectionComboBox.setButtonCell(new UtilityCategoryListCell());
// enable the UI
categorySelectionComboBox.setDisable(false);
enableUI(true);
// update the status text
statusLabel.setText("Utility network loaded. Ready to perform trace...");
}
} else {
// if the fetched feature list is empty, display an error
new Alert(Alert.AlertType.ERROR, "Error getting starting location geometry.").show();
}
} else {
// if the feature fetch operation completed exceptionally, display an error
new Alert(Alert.AlertType.ERROR, "Error getting starting location feature.").show();
}
});
} else {
new Alert(Alert.AlertType.ERROR, "Error loading Utility Network.").show();
}
});
} else {
new Alert(Alert.AlertType.ERROR, "Failed to load service geodatabase").show();
}
});
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Uses the starting location and the selected filter barrier category to perform a valve isolation trace, then
* selects all connected elements found in the trace to highlight them.
*/
@FXML
private void handleTraceClick() {
try {
clearSelectedFeatureLayersOnMap();
// disable the UI, show the progress indicator and update the status text
enableUI(false);
statusLabel.setText("Running isolation trace...");
// get the selected utility category
UtilityCategory selectedCategory = categorySelectionComboBox.getSelectionModel().getSelectedItem();
if (selectedCategory != null) {
// create a category comparison for the trace
// NOTE: UtilityNetworkAttributeComparison or UtilityCategoryComparison with Operator.DoesNotExists
// can also be used. These conditions can be joined with either UtilityTraceOrCondition or UtilityTraceAndCondition.
var utilityCategoryComparison = new UtilityCategoryComparison(selectedCategory, UtilityCategoryComparisonOperator.EXISTS);
// set the category comparison to the barriers of the configuration's trace filter
traceConfiguration.setFilter(new UtilityTraceFilter());
traceConfiguration.getFilter().setBarriers(utilityCategoryComparison);
}
// set the configuration to include or leave out isolated features
traceConfiguration.setIncludeIsolatedFeatures(includeIsolatedFeaturesCheckbox.isSelected());
// build parameters for the isolation trace
utilityTraceParameters.setTraceConfiguration(traceConfiguration);
// run the trace and get the result
utilityNetwork.traceAsync(utilityTraceParameters).toCompletableFuture().whenComplete(
(utilityTraceResults, exception) -> {
if (exception == null) {
if (utilityTraceResults.get(0) instanceof UtilityElementTraceResult) {
var utilityElementTraceResult = (UtilityElementTraceResult) utilityTraceResults.get(0);
if (!utilityElementTraceResult.getElements().isEmpty()) {
// iterate through the map's feature layers
mapView.getMap().getOperationalLayers().stream()
.filter(layer -> layer instanceof FeatureLayer)
.map(layer -> (FeatureLayer) layer)
.forEach(layer -> {
// create query parameters to find features whose network source name matches the layer's feature
// table name
var queryParameters = new QueryParameters();
queryParameters.getObjectIds().addAll(utilityElementTraceResult.getElements().stream()
.filter(utilityElement ->
utilityElement.getNetworkSource().getName().equals(layer.getFeatureTable().getTableName()))
.map(UtilityElement::getObjectId).toList());
// select features that match the query
layer.selectFeaturesAsync(queryParameters, FeatureLayer.SelectionMode.NEW)
.toCompletableFuture().whenComplete((result, throwable) -> {
// update the status text, enable the buttons and hide the progress indicator
statusLabel.setText("Isolation trace completed.");
enableUI(true);
});
});
} else {
statusLabel.setText("Isolation trace completed.");
new Alert(Alert.AlertType.INFORMATION, "Isolation trace returned no elements.").show();
enableUI(true);
}
} else {
statusLabel.setText("Trace failed.");
new Alert(Alert.AlertType.ERROR, "Isolation trace result is not a utility element.").show();
enableUI(true);
}
} else {
// if the utility trace completed exceptionally, display an error
statusLabel.setText("Trace failed.");
new Alert(Alert.AlertType.ERROR, "Error getting isolation trace result.").show();
enableUI(true);
}
});
} catch (Exception e) {
new Alert(Alert.AlertType.ERROR, "Error performing isolation trace.").show();
enableUI(true);
}
}
/**
* Uses the clicked map point to identify any utility elements in the utility network at the clicked location. The
* clicked utility element is added to the utility trace parameter's filter barrier list. A graphic is created
* at the clicked location to mark the element as a filter barrier.
*
* @param e event registered when the map view is clicked on
*/
@FXML
private void handleMapViewClicked(MouseEvent e) {
if (e.getButton() == MouseButton.PRIMARY && e.isStillSincePress()) {
categorySelectionComboBox.setDisable(true);
promptLabel.setText("Add another filter barrier by clicking the map or click Trace");
// ensure the utility network is loaded before processing clicks on the map view
if (utilityNetwork.getLoadStatus() == LoadStatus.LOADED && e.getButton() == MouseButton.PRIMARY &&
e.isStillSincePress()) {
// show the progress indicator
progressIndicator.setVisible(true);
// get the clicked map point
Point2D screenPoint = new Point2D(e.getX(), e.getY());
Point mapPoint = mapView.screenToLocation(screenPoint);
// identify the feature to be used
mapView.identifyLayersAsync(screenPoint, 10, false).toCompletableFuture().whenComplete(
(identifyLayerResults, ex) -> {
if (ex == null) {
// return if no features are identified
if (!identifyLayerResults.isEmpty()) {
// get and store a list of features from the result of the query (there may be more than one)
List<ArcGISFeature> listOfFeatures = new ArrayList<>();
identifyLayerResults.forEach(result -> listOfFeatures.add((ArcGISFeature) result.getElements().get(0)));
// create utility element for each feature and store it in a list
List<UtilityElement> utilityElementList = new ArrayList<>();
listOfFeatures.forEach(feature -> utilityElementList.add(utilityNetwork.createElement(feature)));
utilityElementList.stream().filter(utilityElement ->
utilityElement.getNetworkSource().getSourceType() == UtilityNetworkSource.Type.JUNCTION)
.filter(junction -> junction.getAssetType().getTerminalConfiguration() != null
&& junction.getAssetType().getTerminalConfiguration().getTerminals().size() > 1)
.forEach(junction -> {
// prompt the user to select a terminal for this feature
Optional<UtilityTerminal> userSelectedTerminal = promptForTerminalSelection(junction.getAssetType().getTerminalConfiguration().getTerminals());
// apply the selected terminal
if (userSelectedTerminal.isPresent()) {
UtilityTerminal terminal = userSelectedTerminal.get();
junction.setTerminal(terminal);
// show the terminals name in the status label
String terminalName = terminal.getName() != null ? terminal.getName() : "default";
statusLabel.setText("Feature added at terminal: " + terminalName);
// don't create the element if no terminal was selected
} else {
statusLabel.setText("No terminal selected - no feature added");
}
});
// handle edges
utilityElementList.stream().filter(utilityElement -> utilityElement.getNetworkSource().getSourceType() == UtilityNetworkSource.Type.EDGE)
.forEach(edge -> {
// get the geometry of the identified feature as a polyline, and remove the z component
Polyline polyline = (Polyline) GeometryEngine.removeZ(listOfFeatures.get(0).getGeometry());
// compute how far the clicked location is along the edge feature
double fractionAlongEdge = GeometryEngine.fractionAlong(polyline, mapPoint, -1);
if (Double.isNaN(fractionAlongEdge)) {
new Alert(Alert.AlertType.ERROR, "Cannot add starting location / barrier here.");
return;
}
// set the fraction along edge
edge.setFractionAlongEdge(fractionAlongEdge);
// update the status label text
statusLabel.setText("Fraction along edge: " + Math.round(edge.getFractionAlongEdge() * 1000d) / 1000d);
});
// add the element to the list of filter barriers
utilityTraceParameters.getFilterBarriers().add(utilityElementList.get(0));
// create a graphic for the new utility element
var traceLocationGraphic = new Graphic();
// find the closest coordinate on the selected element to the clicked point
ProximityResult proximityResult =
GeometryEngine.nearestCoordinate(listOfFeatures.get(0).getGeometry(), mapPoint);
// set the graphic's geometry to the coordinate on the element and add it to the graphics overlay
traceLocationGraphic.setGeometry(proximityResult.getCoordinate());
filterBarriersGraphicsOverlay.getGraphics().add(traceLocationGraphic);
}
} else {
statusLabel.setText("Error identifying clicked features.");
new Alert(Alert.AlertType.ERROR, "Error identifying clicked features.").show();
}
progressIndicator.setVisible(false);
});
}
}
}
/**
* Prompts the user to select a terminal from a provided list.
*
* @param terminals a list of terminals for the user to choose from
* @return the user's selected terminal
*/
private Optional<UtilityTerminal> promptForTerminalSelection(List<UtilityTerminal> terminals) {
// create a dialog for terminal selection
ChoiceDialog<UtilityTerminal> utilityTerminalSelectionDialog = new ChoiceDialog<>(terminals.get(0), terminals);
utilityTerminalSelectionDialog.initOwner(mapView.getScene().getWindow());
utilityTerminalSelectionDialog.setTitle("Choose Utility Terminal");
utilityTerminalSelectionDialog.setHeaderText("Junction selected. Choose the Utility Terminal to add as the trace element:");
// override the list cell in the dialog's combo box to show the terminal name
@SuppressWarnings("unchecked") ComboBox<UtilityTerminal> comboBox =
(ComboBox<UtilityTerminal>) ((GridPane) utilityTerminalSelectionDialog.getDialogPane()
.getContent()).getChildren().get(1);
comboBox.setCellFactory(param -> new UtilityTerminalListCell());
comboBox.setButtonCell(new UtilityTerminalListCell());
// show the terminal selection dialog and capture the user selection
return utilityTerminalSelectionDialog.showAndWait();
}
/**
* Enables/disables the UI and hides/shows the progress indicator.
*
* @param enable whether to enable or disable the UI
*/
private void enableUI(boolean enable) {
progressIndicator.setVisible(!enable);
traceButton.setDisable(!enable);
resetButton.setDisable(!enable);
includeIsolatedFeaturesCheckbox.setDisable(!enable);
}
/**
* Clears the selection of feature layers from the map, clears the utility trace parameter's list of filter barriers
* and clears the graphics within the filter barriers graphics overlay.
*/
@FXML
private void handleResetButtonClick() {
statusLabel.setText("Ready to perform trace");
promptLabel.setText("Choose category for filter barrier:");
categorySelectionComboBox.setDisable(false);
clearSelectedFeatureLayersOnMap();
utilityTraceParameters.getFilterBarriers().clear();
filterBarriersGraphicsOverlay.getGraphics().clear();
}
/**
* Clears the previous selection of feature layers from the map.
*/
private void clearSelectedFeatureLayersOnMap() {
// clear previous selection from the layers
mapView.getMap().getOperationalLayers().forEach(layer -> {
if (layer instanceof FeatureLayer) {
((FeatureLayer) layer).clearSelection();
}
});
}
/**
* Stops and releases all resources used in application.
*/
public void terminate() {
if (mapView != null) {
mapView.dispose();
}
}
}