50 lines
1.7 KiB
TypeScript
50 lines
1.7 KiB
TypeScript
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import {
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BadRequestException,
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InternalServerErrorException,
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Logger,
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} from '@nestjs/common';
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import * as oracledb from 'oracledb';
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const logger = new Logger('Helper');
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export const handleError = (error: any, context: string = 'UnknownService'): never => {
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if (error instanceof BadRequestException) {
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logger.warn(`[${context}] ${error.message}`);
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throw error;
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}
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if (error.message?.includes('NJS-107')) {
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logger.warn(`[${context}] Invalid cursor encountered: ${error.message}`);
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throw new BadRequestException('Invalid database response.');
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}
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if (error.message?.includes('ORA-')) {
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logger.error(`[${context}] Oracle error occurred: ${error.message}`);
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throw new InternalServerErrorException(error.message);
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}
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logger.error(`[${context}] Unexpected error:`, error.stack || error);
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throw new InternalServerErrorException(error.message || 'Internal error');
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};
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export const closeOracleDbConnection = async (connection: any, context: string = 'UnknownService'): Promise<void> => {
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if (connection) {
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try {
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await connection.close();
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} catch (closeErr) {
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logger.error(`[${context}] Failed to close DB connection`, closeErr.stack || closeErr);
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}
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}
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};
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export const fetchCursor = async <T>(cursor: oracledb.ResultSet<T>, context: string = 'UnknownService'): Promise<T[]> => {
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try {
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const rows = await cursor.getRows();
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await cursor.close();
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return rows;
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} catch (err) {
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logger.error(`[${context}] Failed to fetch from cursor`, err.stack || err);
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throw new InternalServerErrorException('Error reading data from database.');
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}
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};
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