public virtual async Task <MethodResponse> HandleGetOpcPublishedConfigurationAsJson(MethodRequest methodRequest, object userContext)
{
const string logPrefix = "HandleGetOpcPublishedConfigurationAsJson:";
var statusCode = HttpStatusCode.OK;
GetOpcPublishedConfigurationMethodResponseModel getOpcPublishedConfigurationMethodResponseModel = new GetOpcPublishedConfigurationMethodResponseModel();
var statusResponse = new List <string>();
var configJson = await NodeConfiguration.ReadConfigAsyncAsJson();
if (configJson == null)
{
var statusMessage = $"Error while reading opc publisher json configuration.";
Logger.Information($"{logPrefix} there is no valid configuration file to return.");
statusResponse.Add(statusMessage);
statusCode = HttpStatusCode.NotFound;
}
getOpcPublishedConfigurationMethodResponseModel.ConfigurationJson = configJson;
// build response
string resultString;
if (statusCode == HttpStatusCode.OK)
{
resultString = JsonConvert.SerializeObject(getOpcPublishedConfigurationMethodResponseModel);
Logger.Information($"{logPrefix} Success returning current JSON configuration of OPC Publisher!");
}
else
{
resultString = JsonConvert.SerializeObject(statusResponse);
}
byte[] result = Encoding.UTF8.GetBytes(resultString);
if (result.Length > MaxResponsePayloadLength)
{
Logger.Error($"{logPrefix} Response size is too long");
Array.Resize(ref result, result.Length > MaxResponsePayloadLength ? MaxResponsePayloadLength : result.Length);
}
MethodResponse methodResponse = new MethodResponse(result, (int)statusCode);
Logger.Information($"{logPrefix} completed with result {statusCode.ToString()}");
return(methodResponse);
}
