Improve OCPP request's response error handling

[e-mobility-charging-stations-simulator.git] / src / charging-station / ocpp / OCPPRequestService.ts

diff --git a/src/charging-station/ocpp/OCPPRequestService.ts b/src/charging-station/ocpp/OCPPRequestService.ts
index d17c21d3805945bc94bc93534d4c2eca2a698f33..2076a2964a061b3c4767208d973e872cf0558d97 100644 (file)
--- a/src/charging-station/ocpp/OCPPRequestService.ts
+++ b/src/charging-station/ocpp/OCPPRequestService.ts
@@ -12,6 +12,7 @@ import { MeterValue } from '../../types/ocpp/MeterValues';
 import OCPPError from './OCPPError';
 import OCPPResponseService from './OCPPResponseService';
 import PerformanceStatistics from '../../performance/PerformanceStatistics';
+import Utils from '../../utils/Utils';
 import logger from '../../utils/Logger';
 
 export default abstract class OCPPRequestService {
@@ -28,7 +29,7 @@ export default abstract class OCPPRequestService {
     // eslint-disable-next-line @typescript-eslint/no-this-alias
     const self = this;
     // Send a message through wsConnection
-    return new Promise((resolve, reject) => {
+    return Utils.promiseWithTimeout(new Promise((resolve, reject) => {
       const messageToSend = this.buildMessageToSend(messageId, commandParams, messageType, commandName, responseCallback, rejectCallback);
       if (this.chargingStation.getEnableStatistics()) {
         this.chargingStation.performanceStatistics.addRequestStatistic(commandName, messageType);
@@ -37,21 +38,26 @@ export default abstract class OCPPRequestService {
       if (this.chargingStation.isWebSocketConnectionOpened()) {
         // Yes: Send Message
         const beginId = PerformanceStatistics.beginMeasure(commandName);
+        // FIXME: Handle sending error
         this.chargingStation.wsConnection.send(messageToSend);
         PerformanceStatistics.endMeasure(commandName, beginId);
       } else if (!skipBufferingOnError) {
         // Buffer it
-        this.chargingStation.addToMessageQueue(messageToSend);
+        this.chargingStation.bufferMessage(messageToSend);
+        const ocppError = new OCPPError(ErrorType.GENERIC_ERROR, `WebSocket closed for buffered message id '${messageId}' with content '${messageToSend}'`, commandParams?.details ?? {});
+        if (messageType === MessageType.CALL_MESSAGE) {
+          // Reject it but keep the request in the cache
+          return reject(ocppError);
+        }
+        return rejectCallback(ocppError, false);
+      } else {
         // Reject it
-        return rejectCallback(new OCPPError(commandParams?.code ?? ErrorType.GENERIC_ERROR, commandParams?.message ?? `WebSocket closed for message id '${messageId}' with content '${messageToSend}', message buffered`, commandParams?.details ?? {}));
+        return rejectCallback(new OCPPError(ErrorType.GENERIC_ERROR, `WebSocket closed for non buffered message id '${messageId}' with content '${messageToSend}'`, commandParams?.details ?? {}), false);
       }
       // Response?
-      if (messageType === MessageType.CALL_RESULT_MESSAGE) {
+      if (messageType !== MessageType.CALL_MESSAGE) {
         // Yes: send Ok
-        resolve(commandName);
-      } else if (messageType === MessageType.CALL_ERROR_MESSAGE) {
-        // Send timeout
-        setTimeout(() => rejectCallback(new OCPPError(commandParams?.code ?? ErrorType.GENERIC_ERROR, commandParams?.message ?? `Timeout for message id '${messageId}' with content '${messageToSend}'`, commandParams?.details ?? {})), Constants.OCPP_ERROR_TIMEOUT);
+        return resolve(commandParams);
       }
 
       /**
@@ -64,27 +70,34 @@ export default abstract class OCPPRequestService {
         if (self.chargingStation.getEnableStatistics()) {
           self.chargingStation.performanceStatistics.addRequestStatistic(commandName, MessageType.CALL_RESULT_MESSAGE);
         }
-        // Send the response
-        await self.ocppResponseService.handleResponse(commandName as RequestCommand, payload, requestPayload);
-        resolve(payload);
+        // Handle the request's response
+        try {
+          await self.ocppResponseService.handleResponse(commandName as RequestCommand, payload, requestPayload);
+          resolve(payload);
+        } catch (error) {
+          reject(error);
+          throw error;
+        } finally {
+          self.chargingStation.requests.delete(messageId);
+        }
       }
 
       /**
-       * Function that will receive the request's rejection
+       * Function that will receive the request's error response
        *
        * @param error
+       * @param requestStatistic
        */
-      function rejectCallback(error: OCPPError): void {
-        if (self.chargingStation.getEnableStatistics()) {
+      function rejectCallback(error: OCPPError, requestStatistic = true): void {
+        if (requestStatistic && self.chargingStation.getEnableStatistics()) {
           self.chargingStation.performanceStatistics.addRequestStatistic(commandName, MessageType.CALL_ERROR_MESSAGE);
         }
-        logger.debug(`${self.chargingStation.logPrefix()} Error: %j occurred when calling command %s with parameters: %j`, error, commandName, commandParams);
-        // Build Exception
-        // eslint-disable-next-line no-empty-function
-        self.chargingStation.requests.set(messageId, [() => { /* This is intentiomal */ }, () => { /* This is intentiomal */ }, {}]);
-        // Send error
+        logger.error(`${self.chargingStation.logPrefix()} Error %j occurred when calling command %s with parameters %j`, error, commandName, commandParams);
+        self.chargingStation.requests.delete(messageId);
         reject(error);
       }
+    }), Constants.OCPP_WEBSOCKET_TIMEOUT, new OCPPError(ErrorType.GENERIC_ERROR, `Timeout for message id '${messageId}'`, commandParams?.details ?? {}), () => {
+      messageType === MessageType.CALL_MESSAGE && this.chargingStation.requests.delete(messageId);
     });
   }
 
@@ -93,15 +106,16 @@ export default abstract class OCPPRequestService {
     throw error;
   }
 
-  private buildMessageToSend(messageId: string, commandParams: any, messageType: MessageType, commandName: RequestCommand | IncomingRequestCommand,
-      responseCallback: (payload: Record<string, unknown> | string, requestPayload: Record<string, unknown>) => Promise<void>, rejectCallback: (error: OCPPError) => void): string {
+  private buildMessageToSend(messageId: string, commandParams: Record<string, unknown>, messageType: MessageType, commandName: RequestCommand | IncomingRequestCommand,
+      responseCallback: (payload: Record<string, unknown> | string, requestPayload: Record<string, unknown>) => Promise<void>,
+      rejectCallback: (error: OCPPError, requestStatistic?: boolean) => void): string {
     let messageToSend: string;
     // Type of message
     switch (messageType) {
       // Request
       case MessageType.CALL_MESSAGE:
         // Build request
-        this.chargingStation.requests.set(messageId, [responseCallback, rejectCallback, commandParams as Record<string, unknown>]);
+        this.chargingStation.requests.set(messageId, [responseCallback, rejectCallback, commandName, commandParams]);
         messageToSend = JSON.stringify([messageType, messageId, commandName, commandParams]);
         break;
       // Response