public JsonNetResult UploadMapDataFile(int?coordinateSystemId)
{
JsonModel jsonModel;
if (Request.Files.Count == 0)
{
jsonModel = JsonModel.CreateFailure("No files uploaded.");
return(new JsonNetResult(jsonModel));
}
if (Request.Files.Count > 1)
{
jsonModel = JsonModel.CreateFailure("Too many files uploaded.");
return(new JsonNetResult(jsonModel));
}
var file = Request.Files[0];
if (file == null || file.ContentLength == 0)
{
jsonModel = JsonModel.CreateFailure("The file has no content.");
return(new JsonNetResult(jsonModel));
}
const long MAX_FILE_SIZE = 5120000; //5MB
if (file.ContentLength > MAX_FILE_SIZE)
{
jsonModel = JsonModel.CreateFailure(string.Format("Max file size {0} MB", MAX_FILE_SIZE / 1024000));
return(new JsonNetResult(jsonModel));
}
//Set file name for uploaded file and remove file suffix for layer name
var fileName = file.FileName;
try
{
var jsonString = string.Empty;
if (file.ContentType == "application/zip" || file.ContentType == "application/x-zip-compressed" ||
fileName.ToLower().EndsWith(".zip")) //|| file.ContentType == "application/octet-stream")
{
jsonString = MySettingsManager.GetGeoJsonFromShapeZip(GetCurrentUser(), file.FileName,
file.InputStream);
//Change file suffix since we converted shape to geojson
fileName = fileName.Replace(".zip", ".geojson");
}
else
{
jsonString = new StreamReader(file.InputStream).ReadToEnd();
}
/*if (MySettingsManager.MapDataFileExists(GetCurrentUser(), fileName))
* {
* jsonModel = JsonModel.CreateFailure(Resource.SharedFileAlreadyExists);
* return new JsonNetResult(jsonModel);
* }*/
var featureCollection =
JsonConvert.DeserializeObject(jsonString, typeof(FeatureCollection)) as FeatureCollection;
if (featureCollection == null)
{
jsonModel = JsonModel.CreateFailure(Resource.UploadFileJsonSerialaztionFaild);
return(new JsonNetResult(jsonModel));
}
CoordinateSystem coordinateSystem = null;
if (coordinateSystemId.HasValue)
{
coordinateSystem = new CoordinateSystem((CoordinateSystemId)coordinateSystemId.Value);
}
else
{
coordinateSystem = GisTools.GeoJsonUtils.FindCoordinateSystem(featureCollection);
if (coordinateSystem.Id == CoordinateSystemId.None)
{
jsonModel = JsonModel.CreateFailure(Resource.FilterSpatialUnableToDetermineCoordinateSystem);
return(new JsonNetResult(jsonModel));
}
}
//Make sure crs is saved in file
if (featureCollection.CRS == null)
{
featureCollection.CRS = new NamedCRS(coordinateSystem.Id.EpsgCode());
}
//create a Json object from string
var jsonObject = JObject.FromObject(featureCollection);
//Sava json to file
using (var fileStream = jsonObject.ToString().ToStream())
{
MySettingsManager.SaveMapDataFile(GetCurrentUser(), fileName, fileStream);
}
if (AddFileWfsLayer(fileName, featureCollection))
{
jsonModel = JsonModel.CreateSuccess("Ok");
}
else
{
jsonModel = JsonModel.CreateFailure(Resource.UploafFileLayerAlreadyAdded);
}
}
catch (ImportGisFileException importGisFileException)
{
jsonModel = JsonModel.CreateFailure(importGisFileException.Message);
}
catch (Exception ex)
{
jsonModel = JsonModel.CreateFailure(Resource.FilterSpatialUnableToParseGeoJsonFile);
}
return(new JsonNetResult(jsonModel));
}