fix: improved UX, skipping internal known error (#62)

Author: chulanovskyi-bs

constants/constants.js

@@ -0,0 +1,7 @@
+const ERROR_MESSAGE = {
+	aborted: 'Query execution was aborted',
+};
+
+module.exports = {
+	ERROR_MESSAGE,
+};

reverse_engineering/helpers/connectionHelper.js

@@ -5,6 +5,7 @@ const exec = util.promisify(require('child_process').exec);
 const { spawn } = require('child_process');
 const { buildQuery, queryType } = require('./queryHelper');
 const localization = require('../../localization/en.json');
+const { ERROR_MESSAGE } = require('../../constants/constants');
 
 const SYSTEM_DATABASES = [
 	'val',
@@ -175,11 +176,13 @@ const createConnection = async (connectionInfo, sshService, logger) => {
 	const teradataClientPath = path.resolve(__dirname, '..', 'addons', 'TeradataClient.jar');
 	const teradataClientCommandArguments = buildCommand(teradataClientPath, connectionSettings);
 
+	const getAbortedError = () => new Error(ERROR_MESSAGE.aborted);
+
 	return {
 		execute: (query, signal) => {
 			return new Promise((resolve, reject) => {
 				if (signal?.aborted) {
-					return reject(new Error('Query execution was aborted'));
+					return reject(getAbortedError());
 				}
 
 				const queryArgument = createArgument('query', query);
@@ -196,7 +199,7 @@ const createConnection = async (connectionInfo, sshService, logger) => {
 						queryResult.kill('SIGTERM');
 						activeQueries.delete(queryResult);
 					}
-					reject(new Error('Query execution was aborted'));
+					reject(getAbortedError());
 				};
 
 				if (signal) {

reverse_engineering/helpers/prepareError.js

@@ -1,9 +1,17 @@
-const prepareError = error => ({
-	message: error.message,
-	stack: error.stack,
-	type: error.type,
-	customMsgCode: error.customMsgCode,
-});
+const { ERROR_MESSAGE } = require('../../constants/constants');
+
+const prepareError = error => {
+	if (error.message === ERROR_MESSAGE.aborted) {
+		return null;
+	}
+
+	return {
+		message: error.message,
+		stack: error.stack,
+		type: error.type,
+		customMsgCode: error.customMsgCode,
+	};
+};
 
 module.exports = {
 	prepareError,