public GetValueFromRasterCommand(RasterArgs rasterArgs, IRasterWorkspaceEx rasterWorkspaceEx)
{
Args = rasterArgs;
RasterWorkspace = rasterWorkspaceEx;
}
/// <summary>
/// Handles the incoming rest requests
/// </summary>
/// <param name="boundVariables"> The bound variables. </param>
/// <param name="operationInput"> The operation input. </param>
/// <param name="outputFormat"> The output format. </param>
/// <param name="requestProperties"> The request properties. </param>
/// <param name="responseProperties"> The response properties. </param>
/// <returns> </returns>
/// <exception cref="System.ArgumentNullException"></exception>
public static byte[] Handler(NameValueCollection boundVariables, JsonObject operationInput,
string outputFormat, string requestProperties,
out string responseProperties)
{
responseProperties = null;
var errors = new ErrorModel(400);
string layerName;
double?utmx, utmy;
var found = operationInput.TryGetString("layerName", out layerName);
if (!found || string.IsNullOrEmpty(layerName))
{
throw new ArgumentNullException("layerName");
}
found = operationInput.TryGetAsDouble("utmx", out utmx);
if (!found || !utmx.HasValue)
{
throw new ArgumentNullException("utmx");
}
found = operationInput.TryGetAsDouble("utmy", out utmy);
if (!found || !utmy.HasValue)
{
throw new ArgumentNullException("utmy");
}
var connector = SdeConnectorFactory.Create(layerName);
if (connector == null)
{
return(Json(new
{
Message = "Database does not exist for {0}".With(layerName)
}));
}
var workspace = connector.Connect();
var featureWorkSpace = workspace as IFeatureWorkspace;
if (featureWorkSpace == null)
{
errors.Message = "Error connecting to SDE.";
return(Json(errors));
}
var rasterArgs = new RasterArgs(layerName, utmx, utmy);
var response =
CommandExecutor.ExecuteCommand(new GetValueFromRasterCommand(rasterArgs,
featureWorkSpace as IRasterWorkspaceEx));
if (response == null)
{
errors.Message = "No features found in {2} at the location {0}, {1}.".With(
rasterArgs.X, rasterArgs.Y, rasterArgs.LayerName);
return(Json(errors));
}
return(Json(response));
}
