public string HandleBootNotification(OCPPMessage msgIn, OCPPMessage msgOut)
{
string errorCode = null;
string bootReason = null;
try
{
Logger.LogTrace("Processing boot notification...");
BootNotificationRequest bootNotificationRequest = JsonConvert.DeserializeObject <BootNotificationRequest>(msgIn.JsonPayload);
Logger.LogTrace("BootNotification => Message deserialized");
bootReason = bootNotificationRequest?.Reason.ToString();
Logger.LogInformation("BootNotification => Reason={0}", bootReason);
BootNotificationResponse bootNotificationResponse = new BootNotificationResponse();
bootNotificationResponse.CurrentTime = DateTimeOffset.UtcNow;
bootNotificationResponse.Interval = 300; // 300 seconds
bootNotificationResponse.StatusInfo = new StatusInfoType();
bootNotificationResponse.StatusInfo.ReasonCode = string.Empty;
bootNotificationResponse.StatusInfo.AdditionalInfo = string.Empty;
bootNotificationResponse.CustomData = new CustomDataType();
bootNotificationResponse.CustomData.VendorId = VendorId;
if (ChargePointStatus != null)
{
// Known charge station => accept
bootNotificationResponse.Status = RegistrationStatusEnumType.Accepted;
}
else
{
// Unknown charge station => reject
bootNotificationResponse.Status = RegistrationStatusEnumType.Rejected;
}
msgOut.JsonPayload = JsonConvert.SerializeObject(bootNotificationResponse);
Logger.LogTrace("BootNotification => Response serialized");
}
catch (Exception exp)
{
Logger.LogError(exp, "BootNotification => Exception: {0}", exp.Message);
errorCode = ErrorCodes.FormationViolation;
}
WriteMessageLog(ChargePointStatus.Id, null, msgIn.Action, bootReason, errorCode);
return(errorCode);
}
public string HandleBootNotification(OCPPMessage msgIn, OCPPMessage msgOut)
{
string errorCode = null;
try
{
Logger.LogTrace("Processing boot notification...");
BootNotificationRequest bootNotificationRequest = JsonConvert.DeserializeObject <BootNotificationRequest>(msgIn.JsonPayload);
Logger.LogTrace("BootNotification => Message deserialized");
BootNotificationResponse bootNotificationResponse = new BootNotificationResponse();
bootNotificationResponse.CurrentTime = DateTimeOffset.UtcNow;
bootNotificationResponse.Interval = 300; // 300 seconds
if (ChargePointStatus != null)
{
// Known charge station => accept
bootNotificationResponse.Status = BootNotificationResponseStatus.Accepted;
}
else
{
// Unknown charge station => reject
bootNotificationResponse.Status = BootNotificationResponseStatus.Rejected;
}
msgOut.JsonPayload = JsonConvert.SerializeObject(bootNotificationResponse);
Logger.LogTrace("BootNotification => Response serialized");
}
catch (Exception exp)
{
Logger.LogError(exp, "BootNotification => Exception: {0}", exp.Message);
errorCode = ErrorCodes.FormationViolation;
}
WriteMessageLog(ChargePointStatus.Id, null, msgIn.Action, null, errorCode);
return(errorCode);
}
/// <summary>
/// Process all text messages of this web socket API.
/// </summary>
/// <param name="RequestTimestamp">The timestamp of the request.</param>
/// <param name="Connection">The web socket connection.</param>
/// <param name="EventTrackingId">The event tracking identification.</param>
/// <param name="CancellationToken">The cancellation token.</param>
/// <param name="TextMessage">The received text message.</param>
protected async Task <WebSocketTextMessageRespose> ProcessTextMessages(DateTime RequestTimestamp,
WebSocketConnection Connection,
EventTracking_Id EventTrackingId,
CancellationToken CancellationToken,
String TextMessage)
{
JArray JSON = null;
WSErrorMessage ErrorMessage = null;
try
{
JSON = JArray.Parse(TextMessage?.Trim());
#region MessageType 2: CALL (Client-to-Server)
// [
// 2, // MessageType: CALL (Client-to-Server)
// "19223201", // RequestId
// "BootNotification", // Action
// {
// "chargePointVendor": "VendorX",
// "chargePointModel": "SingleSocketCharger"
// }
// ]
if (JSON.Count == 4 &&
JSON[0].Type == JTokenType.Integer &&
JSON[0].Value <Byte>() == 2 &&
JSON[1].Type == JTokenType.String &&
JSON[2].Type == JTokenType.String &&
JSON[3].Type == JTokenType.Object)
{
#region Initial checks
var RequestId = JSON[1].Value <String>()?.Trim();
var Action = JSON[2].Value <String>()?.Trim();
var RequestData = JSON[3].Value <JObject>();
if (RequestId.IsNullOrEmpty())
{
ErrorMessage = new WSErrorMessage(
RequestId,
WSErrorCodes.ProtocolError,
"The given 'request identification' must not be null or empty!",
new JObject(
new JProperty("request", TextMessage)
));
}
else if (Action.IsNullOrEmpty())
{
ErrorMessage = new WSErrorMessage(
RequestId,
WSErrorCodes.ProtocolError,
"The given 'action' must not be null or empty!",
new JObject(
new JProperty("request", TextMessage)
));
}
#endregion
else
{
JObject OCPPResponseJSON = null;
switch (Action)
{
#region BootNotification
case "BootNotification":
{
#region Send OnBootNotificationWSRequest event
try
{
//OnBootNotificationSOAPRequest?.Invoke(DateTime.UtcNow,
// SOAPServer.HTTPServer,
// Request);
}
catch (Exception e)
{
e.Log(nameof(CentralSystemSOAPServer) + "." + nameof(OnBootNotificationSOAPRequest));
}
#endregion
BootNotificationResponse response = null;
try
{
if (BootNotificationRequest.TryParse(RequestData,
out BootNotificationRequest bootNotificationRequest))
{
#region Send OnBootNotificationRequest event
try
{
OnBootNotificationRequest?.Invoke(bootNotificationRequest.RequestTimestamp,
this,
EventTrackingId,
ChargeBox_Id.Parse("123"), //OCPPHeader.ChargeBoxIdentity,
bootNotificationRequest.ChargePointVendor,
bootNotificationRequest.ChargePointModel,
bootNotificationRequest.ChargePointSerialNumber,
bootNotificationRequest.ChargeBoxSerialNumber,
bootNotificationRequest.FirmwareVersion,
bootNotificationRequest.Iccid,
bootNotificationRequest.IMSI,
bootNotificationRequest.MeterType,
bootNotificationRequest.MeterSerialNumber);
}
catch (Exception e)
{
e.Log(nameof(CentralSystemSOAPServer) + "." + nameof(OnBootNotificationRequest));
}
#endregion
#region Call async subscribers
if (response == null)
{
var results = OnBootNotification?.
GetInvocationList()?.
SafeSelect(subscriber => (subscriber as BootNotificationDelegate)
(DateTime.UtcNow,
this,
CancellationToken,
EventTrackingId,
ChargeBox_Id.Parse("123"), //OCPPHeader.ChargeBoxIdentity,
bootNotificationRequest)).
ToArray();
if (results?.Length > 0)
{
await Task.WhenAll(results);
response = results.FirstOrDefault()?.Result;
}
if (results == null || response == null)
{
response = BootNotificationResponse.Failed(bootNotificationRequest);
}
}
#endregion
#region Send OnBootNotificationResponse event
try
{
OnBootNotificationResponse?.Invoke(response.ResponseTimestamp,
this,
EventTrackingId,
ChargeBox_Id.Parse("123"), //OCPPHeader.ChargeBoxIdentity,
bootNotificationRequest.ChargePointVendor,
bootNotificationRequest.ChargePointModel,
bootNotificationRequest.ChargePointSerialNumber,
bootNotificationRequest.ChargeBoxSerialNumber,
bootNotificationRequest.FirmwareVersion,
bootNotificationRequest.Iccid,
bootNotificationRequest.IMSI,
bootNotificationRequest.MeterType,
bootNotificationRequest.MeterSerialNumber,
response.Result,
response.Status,
response.CurrentTime,
response.Interval,
response.Runtime);
}
catch (Exception e)
{
e.Log(nameof(CentralSystemSOAPServer) + "." + nameof(OnBootNotificationResponse));
}
#endregion
OCPPResponseJSON = response.ToJSON();
}
else
{
ErrorMessage = new WSErrorMessage(RequestId,
WSErrorCodes.FormationViolation,
"The given 'BootNotification' request could not be parsed!",
new JObject(
new JProperty("request", TextMessage)
));
}
}
catch (Exception e)
{
ErrorMessage = new WSErrorMessage(RequestId,
WSErrorCodes.FormationViolation,
"Processing the given 'BootNotification' request led to an exception!",
new JObject(
new JProperty("request", TextMessage),
new JProperty("exception", e.Message),
new JProperty("stacktrace", e.StackTrace)
));
}
#region Send OnBootNotificationWSResponse event
try
{
//OnBootNotificationSOAPResponse?.Invoke(HTTPResponse.Timestamp,
// SOAPServer.HTTPServer,
// Request,
// HTTPResponse);
}
catch (Exception e)
{
e.Log(nameof(CentralSystemSOAPServer) + "." + nameof(OnBootNotificationSOAPResponse));
}
#endregion
}
break;
#endregion
}
if (OCPPResponseJSON != null)
{
return(new WebSocketTextMessageRespose(RequestTimestamp,
TextMessage,
DateTime.UtcNow,
new WSResponseMessage(WSMessageTypes.CALLRESULT,
RequestId,
OCPPResponseJSON).ToJSON().ToString()));
}
}
}
#endregion
#region MessageType 3: CALLRESULT (Server-to-Client)
// [
// 3, // MessageType: CALLRESULT (Server-to-Client)
// "19223201", // RequestId copied from request
// {
// "status": "Accepted",
// "currentTime": "2013-02-01T20:53:32.486Z",
// "heartbeatInterval": 300
// }
// ]
else if (JSON.Count == 3 &&
JSON[0].Type == JTokenType.Integer &&
JSON[0].Value <Byte>() == 3 &&
JSON[1].Type == JTokenType.String &&
JSON[2].Type == JTokenType.Object)
{
}
#endregion
#region MessageType 4: CALLERROR (Server-to-Client)
// [
// 4, // MessageType: CALLERROR (Server-to-Client)
// "19223201", // RequestId from request
// "<errorCode>",
// "<errorDescription>",
// {
// <errorDetails>
// }
// ]
// Error Code Description
// -----------------------------------------------------------------------------------------------
// NotImplemented Requested Action is not known by receiver
// NotSupported Requested Action is recognized but not supported by the receiver
// InternalError An internal error occurred and the receiver was not able to process the requested Action successfully
// ProtocolError Payload for Action is incomplete
// SecurityError During the processing of Action a security issue occurred preventing receiver from completing the Action successfully
// FormationViolation Payload for Action is syntactically incorrect or not conform the PDU structure for Action
// PropertyConstraintViolation Payload is syntactically correct but at least one field contains an invalid value
// OccurenceConstraintViolation Payload for Action is syntactically correct but at least one of the fields violates occurence constraints
// TypeConstraintViolation Payload for Action is syntactically correct but at least one of the fields violates data type constraints (e.g. “somestring”: 12)
// GenericError Any other error not covered by the previous ones
else if (JSON.Count == 5 &&
JSON[0].Type == JTokenType.Integer &&
JSON[0].Value <Byte>() == 4 &&
JSON[1].Type == JTokenType.String &&
JSON[2].Type == JTokenType.String &&
JSON[3].Type == JTokenType.String &&
JSON[4].Type == JTokenType.Object)
{
}
#endregion
else
{
ErrorMessage = new WSErrorMessage(JSON.Count >= 2 ? JSON[1].Value <String>()?.Trim() : "unknown",
WSErrorCodes.FormationViolation,
"The given OCPP request message is invalid!",
new JObject(
new JProperty("request", TextMessage)
));
}
}
catch (Exception e)
{
ErrorMessage = new WSErrorMessage(JSON != null && JSON.Count >= 2
? JSON?[1].Value <String>()?.Trim()
: "Unknown request identification",
WSErrorCodes.FormationViolation,
"Processing the given OCPP request message led to an exception!",
new JObject(
new JProperty("request", TextMessage),
new JProperty("exception", e.Message),
new JProperty("stacktrace", e.StackTrace)
));
}
return(new WebSocketTextMessageRespose(RequestTimestamp,
TextMessage,
DateTime.UtcNow,
ErrorMessage.ToJSON().ToString()));
}