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MCP Server AntV

Official
by antvis
logger.ts2.82 kB
import { getEnvLoggerLevel } from './env'; export enum LogLevel { DEBUG = 0, INFO = 1, WARN = 2, ERROR = 3, } /** * Logger class for logging messages with different severity levels. * Supports colorized output in the console and customizable log levels. */ export class Logger { private level: LogLevel; private prefix: string; private enableColors: boolean; constructor(level = LogLevel.INFO, prefix = '', enableColors = true) { this.level = level; this.prefix = prefix; this.enableColors = enableColors; } private formatMessage(level: string, message: string): string { const timestamp = new Date().toISOString(); const prefixStr = this.prefix ? `[${this.prefix}] ` : ''; return `${timestamp} ${prefixStr}[${level}] ${message}`; } private colorize(text: string, color: string): string { if (!this.enableColors) return text; const colors: Record<string, string> = { reset: '\x1b[0m', red: '\x1b[31m', yellow: '\x1b[33m', blue: '\x1b[34m', gray: '\x1b[90m', }; return `${colors[color] || ''}${text}${colors.reset}`; } /** * Logs a debug message. * @param message The message to log. * @param args Additional arguments to include in the log. */ debug(message: string, ...args: any[]): void { if (this.level <= LogLevel.DEBUG) { const formatted = this.formatMessage('DEBUG', message); console.debug(this.colorize(formatted, 'gray'), ...args); } } /** * Logs an info message. * @param message The message to log. * @param args Additional arguments to include in the log. */ info(message: string, ...args: any[]): void { if (this.level <= LogLevel.INFO) { const formatted = this.formatMessage('INFO', message); console.info(this.colorize(formatted, 'blue'), ...args); } } /** * Logs a warning message. * @param message The message to log. * @param args Additional arguments to include in the log. */ warn(message: string, ...args: any[]): void { if (this.level <= LogLevel.WARN) { const formatted = this.formatMessage('WARN', message); console.warn(this.colorize(formatted, 'yellow'), ...args); } } /** * Logs an error message. * @param message The message to log. * @param args Additional arguments to include in the log. */ error(message: string, ...args: any[]): void { if (this.level <= LogLevel.ERROR) { const formatted = this.formatMessage('ERROR', message); console.error(this.colorize(formatted, 'red'), ...args); } } } /** * Logger instance for the MCP Server AntV. * Uses the environment variable `LOGGER_LEVEL` to set the log level. */ export const logger = new Logger( getEnvLoggerLevel() as unknown as LogLevel, 'MCPServerAntV', true, );

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