public override async Task <SearchResult> Execute()
{
if (string.IsNullOrEmpty(Geometry))
{
return(null);
}
var identify = new Identify.RequestContract {
GeometryType = GeometryType.esriGeometryPoint
};
var point = CommandExecutor.ExecuteCommand(new DecodeInputGeomertryCommand(Geometry));
if (point is null && !string.IsNullOrEmpty(Geometry))
{
ErrorMessage = "GEOMETRY COORDINATES APPEAR TO BE INVALID.";
return(null);
}
if (point.SpatialReference is not null)
{
Wkid = point.SpatialReference.Wkid;
}
HttpResponseMessage httpResponse;
if (!LocalProjection.Contains(Wkid))
{
var coordinates = Enumerable.Empty <double>();
if (point is null)
{
return(null);
}
coordinates = new[] { point.X, point.Y };
var projectResponse = CommandExecutor.ExecuteCommand(
new ReprojectPointsCommand(
new ReprojectPointsCommand.PointProjectQueryArgs(Wkid, 3857, coordinates.ToList())));
if (!projectResponse.IsSuccessful)
{
return(null);
}
identify.Geometry = string.Join("&", projectResponse.Geometries.Select(geo => $"{geo.X},{geo.Y}"));
}
else
{
identify.Geometry = $"{point.X},{point.Y}";
}
var requestUri = $"{BaseUrl}{identify}";
try
{
httpResponse = await App.HttpClient.GetAsync(requestUri);
}
catch (Exception ex)
{
ErrorMessage = ex.Message;
return(null);
}
Identify.ResponseContract response = null;
try
{
response = await httpResponse.Content.ReadAsAsync <Identify.ResponseContract>();
}
catch (Exception ex)
{
ErrorMessage = ex.Message;
}
var attributes = new Dictionary <string, object>();
var values = ReturnValues.Split(',').Select(x => x.ToLowerInvariant());
if (values.Contains("feet"))
{
attributes["feet"] = response.Feet;
}
if (values.Contains("value"))
{
attributes["value"] = response.Value;
}
if (values.Contains("meters"))
{
attributes["meters"] = response.Value;
}
return(new SearchResult
{
Attributes = attributes
});
}