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// Copyright 2021 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.using ArcGIS.Samples.Managers;
using Esri.ArcGISRuntime.LocalServices;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Tasks;
using Esri.ArcGISRuntime.Tasks.Geoprocessing;
using System;
using System.Diagnostics;
using System.IO;
using System.Reflection;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
namespaceArcGIS.WPF.Samples.LocalServerGeoprocessing{
[ArcGIS.Samples.Shared.Attributes.Sample(
name: "Local server geoprocessing",
category: "Local Server",
description: "Create contour lines from local raster data using a local geoprocessing package `.gpk` and the contour geoprocessing tool.",
instructions: "Contour Line Controls (Top Left):",
tags: new[] { "geoprocessing", "local", "offline", "parameters", "processing", "service" })]
[ArcGIS.Samples.Shared.Attributes.OfflineData("3f38e1ae7c5948cc95334ba3a142a4ec", "a680362d6a7447e8afe2b1eb85fcde30")]
publicpartialclassLocalServerGeoprocessing {
// Hold a reference to the local geoprocessing serviceprivate LocalGeoprocessingService _gpService;
// Hold a reference to the taskprivate GeoprocessingTask _gpTask;
// Hold a reference to the jobprivate GeoprocessingJob _gpJob;
publicLocalServerGeoprocessing() {
InitializeComponent();
// set up the sample _ = Initialize();
}
privateasync Task Initialize() {
// Create a map and add it to the view MyMapView.Map = new Map(BasemapStyle.ArcGISLightGray);
// Load the tiled layer and get the pathstring rasterPath = GetRasterPath();
// Create a tile cache using the path to the raster TileCache myTileCache = new TileCache(rasterPath);
// Create the tiled layer from the tile cache ArcGISTiledLayer tiledLayer = new ArcGISTiledLayer(myTileCache);
// Try to load the tiled layertry {
// Wait for the layer to loadawait tiledLayer.LoadAsync();
// Zoom to extent of the tiled layerawait MyMapView.SetViewpointGeometryAsync(tiledLayer.FullExtent);
}
catch (Exception)
{
MessageBox.Show("Couldn't load the tile package, ending sample load.");
return;
}
// Add the layer to the map MyMapView.Map.OperationalLayers.Add(tiledLayer);
// Try to start Local Servertry {
// LocalServer must not be running when setting the data path.if (LocalServer.Instance.Status == LocalServerStatus.Started)
{
await LocalServer.Instance.StopAsync();
}
// Set the local data path - must be done before starting. On most systems, this will be C:\EsriSamples\AppData.// This path should be kept short to avoid Windows path length limitations.string tempDataPathRoot = Directory.GetParent(Environment.GetFolderPath(Environment.SpecialFolder.Windows)).FullName;
string tempDataPath = Path.Combine(tempDataPathRoot, "EsriSamples", "AppData");
Directory.CreateDirectory(tempDataPath); // CreateDirectory won't overwrite if it already exists. LocalServer.Instance.AppDataPath = tempDataPath;
// Start the local server instanceawait LocalServer.Instance.StartAsync();
}
catch (Exception ex)
{
var localServerTypeInfo = typeof(LocalMapService).GetTypeInfo();
var localServerVersion = FileVersionInfo.GetVersionInfo(localServerTypeInfo.Assembly.Location);
MessageBox.Show($"Please ensure that local server {localServerVersion.FileVersion} is installed prior to using the sample. The download link is in the description. Message: {ex.Message}", "Local Server failed to start");
return;
}
// Get the path to the geoprocessing taskstring gpServiceUrl = GetGpPath();
// Create the geoprocessing service _gpService = new LocalGeoprocessingService(gpServiceUrl, GeoprocessingServiceType.AsynchronousSubmitWithMapServiceResult);
// Take action once the service loads _gpService.StatusChanged += GpServiceOnStatusChanged;
// Try to start the servicetry {
// Start the serviceawait _gpService.StartAsync();
}
catch (Exception)
{
MessageBox.Show("geoprocessing service failed to start.");
}
}
privateasyncvoidGpServiceOnStatusChanged(object sender, StatusChangedEventArgs statusChangedEventArgs) {
// Return if the server hasn't startedif (statusChangedEventArgs.Status != LocalServerStatus.Started) return;
try {
// Create the geoprocessing task from the service _gpTask = await GeoprocessingTask.CreateAsync(new Uri(_gpService.Url + "/Contour"));
// Update UI MyUpdateContourButton.IsEnabled = true;
MyLoadingIndicator.Visibility = Visibility.Collapsed;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
privatevoidGenerateContours() {
// Show the progress bar MyLoadingIndicator.Visibility = Visibility.Visible;
MyLoadingIndicator.IsIndeterminate = false;
// Create the geoprocessing parameters GeoprocessingParameters gpParams = new GeoprocessingParameters(GeoprocessingExecutionType.AsynchronousSubmit);
// Add the interval parameter to the geoprocessing parameters gpParams.Inputs["ContourInterval"] = new GeoprocessingDouble(MyContourSlider.Value);
// Create the job _gpJob = _gpTask.CreateJob(gpParams);
// Update the UI when job progress changes _gpJob.ProgressChanged += (sender, args) =>
{
Dispatcher.Invoke(() => { MyLoadingIndicator.Value = _gpJob.Progress; });
};
// Be notified when the task completes (or other change happens) _gpJob.StatusChanged += GpJobOnJobChanged;
// Start the job _gpJob.Start();
}
privateasyncvoidGpJobOnJobChanged(object o, JobStatus e) {
// Show message if job failedif (_gpJob.Status == JobStatus.Failed)
{
MessageBox.Show("Job Failed");
return;
}
// Return if not succeededif (_gpJob.Status != JobStatus.Succeeded) { return; }
// Get the URL to the map servicestring gpServiceResultUrl = _gpService.Url.ToString();
// Get the URL segment for the specific job resultsstring jobSegment = "MapServer/jobs/" + _gpJob.ServerJobId;
// Update the URL to point to the specific job from the service gpServiceResultUrl = gpServiceResultUrl.Replace("GPServer", jobSegment);
// Create a map image layer to show the results ArcGISMapImageLayer myMapImageLayer = new ArcGISMapImageLayer(new Uri(gpServiceResultUrl));
try {
// Load the layerawait myMapImageLayer.LoadAsync();
// This is needed because the event comes from outside of the UI thread Dispatcher.Invoke(() =>
{
// Add the layer to the map MyMapView.Map.OperationalLayers.Add(myMapImageLayer);
// Hide the progress bar MyLoadingIndicator.Visibility = Visibility.Collapsed;
// Disable the generate button MyUpdateContourButton.IsEnabled = false;
// Enable the reset button MyResetButton.IsEnabled = true;
});
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
privatestaticstringGetRasterPath() {
return DataManager.GetDataFolder("3f38e1ae7c5948cc95334ba3a142a4ec", "RasterHillshade.tpkx");
}
privatestaticstringGetGpPath() {
return DataManager.GetDataFolder("a680362d6a7447e8afe2b1eb85fcde30", "Contour.gpkx");
}
privatevoidMyResetButton_OnClick(object sender, RoutedEventArgs e) {
// Remove the contour MyMapView.Map.OperationalLayers.RemoveAt(1);
// Enable the generate button MyUpdateContourButton.IsEnabled = true;
// Disable the reset button MyResetButton.IsEnabled = false;
}
privatevoidMyUpdateContourButton_OnClick(object sender, RoutedEventArgs e) {
// Disable the generate button ((Button)sender).IsEnabled = false;
// Generate the contours GenerateContours();
}
}
}