public async Task <IActionResult> JosmToLeaflet([FromBody] FeatureCollection josm)
{
try
{
// Create a list of errors to be added to.
List <string> errors = new List <string>();
// Start a timer.
DateTime start = DateTime.Now;
// Make sure there is some data to extract.
if (josm == default || josm.Features.Count == 0)
{
errors.Add("JOSM JSON cannot be empty.");
return(BadRequest(errors));
}
// Initialise a converter.
Josm2Leaflet converter = new Josm2Leaflet();
// Extract relevant features.
List <Feature> features = converter.ParseJOSM(josm);
// Make sure there are features in this GeoJSON to work with.
if (features.Count > 0)
{
// Serialise to JSON.
string result = JsonConvert.SerializeObject(new FeatureCollection(features));
// Write the JSON to a file on the server for serving later.
string path = await converter.WriteToFile(result, WebHostEnvironment);
// Make sure writing the file succeeded.
if (string.IsNullOrWhiteSpace(path))
{
errors.Add("JOSM2Leaflet: Failed to write JSON file.");
}
// Stop the timer.
DateTime end = DateTime.Now;
// Return a message to the front-end for display to the user indicating processing time.
return(Created(path, $"JOSM2Leaflet for {converter.filePrefix.ToUpper()} finished in {Math.Round((end - start).TotalMilliseconds, 2)}ms."));
}
return(Created("", "No content to extract."));
}
catch (Exception e)
{
return(StatusCode(500, e.Message));
}
}
public async Task <IActionResult> BackgroundJosmToLeaflet([FromBody] FeatureCollection josm)
{
try
{
// Start a timer.
DateTime start = DateTime.Now;
List <string> errors = new List <string>();
// Make sure we have data to work with.
if (josm == default || josm.Features.Count == 0)
{
errors.Add("JOSM JSON cannot be empty.");
return(BadRequest(errors));
}
// Create a new instance of the converter.
Josm2Leaflet converter = new Josm2Leaflet();
// Remove corridor nodes.
List <Feature> features = converter.RemoveCorridorNodes(josm);
// Serialise result.
string result = JsonConvert.SerializeObject(new FeatureCollection(features));
// Write to file.
string path = await converter.WriteBackgroundToFile(result, WebHostEnvironment);
// Ensure the file write succeeded.
if (path == null)
{
errors.Add("JOSM2Leaflet: Failed to write background JSON file.");
return(BadRequest(errors));
}
// Stop the timer.
DateTime end = DateTime.Now;
return(Created(path, $"JOSM2Leaflet for background finished in {Math.Round((end - start).TotalMilliseconds, 2)}ms."));
}
catch (Exception e)
{
return(StatusCode(500, e.Message));
}
}