agentsqripts/lib/scalability/databaseConnectionDetector.js

Comprehensive static code analysis toolkit for identifying technical debt, security vulnerabilities, performance issues, and code quality problems

/**
 * @file Database connection detector for connection pool management and scalability optimization
 * @description Single responsibility: Detect excessive database connections and connection management issues
 * 
 * This detector identifies database connection patterns that can exhaust connection pools,
 * cause performance degradation, and prevent application scaling. It analyzes connection
 * creation patterns, pool usage, and database access efficiency to ensure optimal database
 * resource utilization and prevent connection-related scalability bottlenecks.
 * 
 * Design rationale:
 * - Pattern-based detection identifies common connection management anti-patterns
 * - Connection lifecycle analysis validates proper connection usage and cleanup
 * - Pool exhaustion prevention through early detection of excessive connection creation
 * - Context-aware analysis provides appropriate guidance for different database usage scenarios
 * - Performance impact assessment helps prioritize connection optimization efforts
 * 
 * Database connection detection scope:
 * - Excessive connection creation without proper pooling or reuse
 * - Connection leaks from missing connection cleanup and disposal
 * - Inefficient database access patterns that waste connection resources
 * - Connection pool configuration issues that limit application scalability
 * - Database operation patterns that block connection availability for other requests
 */

/**
 * Detects excessive database connections
 * @param {string} content - File content
 * @param {string} filePath - Path to the file
 * @returns {Array} Array of database connection issues
 */
function detectExcessiveDBConnections(content, filePath) {
  const issues = [];
  
  const connectionPatterns = [
    'new Pool(',
    'createConnection(',
    'connect(',
    'MongoClient.connect',
    'mongoose.connect'
  ];
  
  connectionPatterns.forEach(pattern => {
    if (content.includes(pattern)) {
      issues.push({
        type: 'db_connection',
        severity: 'MEDIUM',
        category: 'Database',
        location: filePath,
        pattern: pattern,
        summary: `Database connection creation '${pattern}' — ensure connection pooling`,
        recommendation: 'Use connection pooling and reuse connections instead of creating new ones per request',
        impact: 'Excessive connections can exhaust database limits'
      });
    }
  });
  
  return issues;
}

module.exports = {
  detectExcessiveDBConnections
};