private byte[] OperazioneRestDownloadFeatureHandler(NameValueCollection boundVariables,
JsonObject operationInput,
string outputFormat,
string requestProperties,
out string responseProperties)
{
responseProperties = null;
#region Istanzio il JSON Result
JsonObject result = new JsonObject();
result.AddBoolean("hasError", false);
#endregion
bool found = operationInput.TryGetArray("listaOID", out object[] paramListaOID);
if (!found || paramListaOID == null)
{
throw new ArgumentNullException("listaOID");
}
bool okParam2 = operationInput.TryGetString("URLServiceLayer", out string paramURL);
if (!okParam2 || paramURL == String.Empty)
{
throw new ArgumentNullException("URLServiceLayer");
}
IGeoProcessor2 gp = new GeoProcessor() as IGeoProcessor2;
gp.OverwriteOutput = true;
try
{
result.AddArray("interno", paramListaOID);
// Ricavo Feature Class dietro al Service Layer
IFeatureClass featureClass = MapServiceHelper_GiancaGIS.RicavaFCDaURLServiceLayer(this.serverObjectHelper, paramURL);
IFeatureLayer fLayer = new FeatureLayerClass
{
FeatureClass = featureClass,
Name = "Mio Layer",
SpatialReference = ((IGeoDataset)featureClass).SpatialReference
};
IFeatureSelection featureSelection = fLayer as IFeatureSelection;
IQueryFilter2 queryFilter = new QueryFilterClass
{
WhereClause = "OBJECTID IN (" + String.Join(",", paramListaOID) + ")"
};
featureSelection.SelectFeatures(queryFilter, esriSelectionResultEnum.esriSelectionResultNew, false);
this.CreaWorkSpaceOutput(out IWorkspaceName WorkspaceNameOUT, out string pathFGDB);
IVariantArray parameters = new VarArrayClass();
parameters.Add(fLayer);
parameters.Add(System.IO.Path.Combine(pathFGDB, "output"));
gp.Execute("CopyFeatures_management", parameters, null);
this.ZippaFGDB(System.IO.Path.GetDirectoryName(pathFGDB), out string pathZip);
result.AddString("zip", pathZip);
}
catch (Exception errore)
{
object severity = null;
string errGp = gp.GetMessages(ref severity);
if (!string.IsNullOrEmpty(errGp))
{
result.AddBoolean("GeoProcessingError", true);
result.AddString("erroreGp", errGp);
}
result.AddString("errorDescription", errore.Message);
result.AddBoolean("hasError", true);
}
return(Encoding.UTF8.GetBytes(result.ToJson()));
}
