syntropylog/dist/serialization/pipeline/TimeoutStep.js

An instance manager with observability for Node.js applications

/**
 * TimeoutStep - Pipeline step for calculating operation timeouts
 *
 * PHILOSOPHY: "Like a journalist - reports what happened and nothing more"
 *
 * This step follows the framework's core principle of being a silent observer.
 * If anything fails in the timeout calculation:
 * - The application continues running (never interrupted)
 * - The step reports what happened via metadata
 * - Fallback to default timeout (3000ms) is applied silently
 * - No errors are thrown that could disrupt the main application flow
 *
 * The step is designed to be resilient and provide useful information
 * even when timeout strategies are not properly configured.
 */
export class TimeoutStep {
    name = 'timeout';
    timeoutStrategies = new Map();
    constructor(timeoutStrategies) {
        this.timeoutStrategies = timeoutStrategies;
    }
    async execute(data, _context) {
        const startTime = Date.now();
        try {
            // 1. Seleccionar estrategia de timeout
            const timeoutStrategy = this.selectTimeoutStrategy(data);
            // 2. Calcular timeout de operación
            const operationTimeout = timeoutStrategy?.calculateTimeout(data) || 3000; // Default timeout if strategy is null
            // 3. Agregar metadata de timeout
            const duration = Date.now() - startTime;
            return {
                ...data,
                timeoutDuration: duration,
                operationTimeout,
                timeoutStrategy: timeoutStrategy?.getStrategyName() || 'default',
                timeoutApplied: timeoutStrategy !== null,
            };
        }
        catch (error) {
            const duration = Date.now() - startTime;
            return {
                ...data,
                timeoutDuration: duration,
                operationTimeout: 3000, // Default timeout
                timeoutStrategy: 'default',
                timeoutApplied: false,
                timeoutError: error instanceof Error ? error.message : 'Error en timeout',
            };
        }
    }
    selectTimeoutStrategy(data) {
        // Seleccionar estrategia basada en el tipo de datos
        if (data?.type === 'PrismaQuery') {
            return (this.timeoutStrategies.get('prisma') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        if (data?.type === 'TypeORMQuery') {
            return (this.timeoutStrategies.get('typeorm') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        if (data?.type === 'MySQLQuery') {
            return (this.timeoutStrategies.get('mysql') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        if (data?.type === 'PostgreSQLQuery') {
            return (this.timeoutStrategies.get('postgresql') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        if (data?.type === 'SQLServerQuery') {
            return (this.timeoutStrategies.get('sqlserver') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        if (data?.type === 'OracleQuery') {
            return (this.timeoutStrategies.get('oracle') ||
                this.timeoutStrategies.get('default') ||
                null);
        }
        return this.timeoutStrategies.get('default') || null;
    }
}
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