public static async Task <string> GenerateGeoJson(string geoJsonContent, string pageUrl)
{
var serializer = GeoJsonSerializer.Create(SpatialHelpers.Wgs84GeometryFactory());
using var stringReader = new StringReader(geoJsonContent);
using var jsonReader = new JsonTextReader(stringReader);
var contentFeatureCollection = serializer.Deserialize <FeatureCollection>(jsonReader);
var bounds = SpatialConverters.GeometryBoundingBox(SpatialConverters.GeoJsonToGeometries(geoJsonContent));
var jsonDto = new GeoJsonSiteJsonData(pageUrl,
new SpatialBounds(bounds.MaxY, bounds.MaxX, bounds.MinY, bounds.MinX), contentFeatureCollection);
await using var stringWriter = new StringWriter();
using var jsonWriter = new JsonTextWriter(stringWriter);
serializer.Serialize(jsonWriter, jsonDto);
return(stringWriter.ToString());
}
public static async Task <GenerationReturn> Validate(LineContent lineContent)
{
var rootDirectoryCheck = UserSettingsUtilities.ValidateLocalSiteRootDirectory();
if (!rootDirectoryCheck.Item1)
{
return(await GenerationReturn.Error($"Problem with Root Directory: {rootDirectoryCheck.Item2}",
lineContent.ContentId));
}
var commonContentCheck = await CommonContentValidation.ValidateContentCommon(lineContent);
if (!commonContentCheck.valid)
{
return(await GenerationReturn.Error(commonContentCheck.explanation, lineContent.ContentId));
}
var updateFormatCheck = CommonContentValidation.ValidateUpdateContentFormat(lineContent.UpdateNotesFormat);
if (!updateFormatCheck.isValid)
{
return(await GenerationReturn.Error(updateFormatCheck.explanation, lineContent.ContentId));
}
try
{
var serializer = GeoJsonSerializer.Create(SpatialHelpers.Wgs84GeometryFactory(), 3);
using var stringReader = new StringReader(lineContent.Line);
using var jsonReader = new JsonTextReader(stringReader);
var featureCollection = serializer.Deserialize <FeatureCollection>(jsonReader);
if (featureCollection.Count < 1)
{
return(await GenerationReturn.Error(
"The GeoJson for the line appears to have an empty Feature Collection?", lineContent.ContentId));
}
if (featureCollection.Count > 1)
{
return(await GenerationReturn.Error(
"The GeoJson for the line appears to contain multiple elements? It should only contain 1 line...",
lineContent.ContentId));
}
if (featureCollection[0].Geometry is not LineString)
{
return(await GenerationReturn.Error(
"The GeoJson for the line has one element but it isn't a LineString?", lineContent.ContentId));
}
var lineString = featureCollection[0].Geometry as LineString;
if (lineString == null || lineString.Count < 1 || lineString.Length == 0)
{
return(await GenerationReturn.Error("The LineString doesn't have any points or is zero length?",
lineContent.ContentId));
}
}
catch (Exception e)
{
return(await GenerationReturn.Error(
$"Error parsing the FeatureCollection and/or problems checking the LineString {e.Message}",
lineContent.ContentId));
}
return(await GenerationReturn.Success("Line Content Validation Successful"));
}