import { MetricsCollector } from '../../domain/performance/services/PerformanceDomainService.js';
import { DatabaseConnectionManager } from '../../database/connection/connection.manager.js';
import { Logger } from '../../core/logger.js';
export class MetricsCollectorImpl implements MetricsCollector {
constructor(
private readonly dbManager: DatabaseConnectionManager,
private readonly logger: Logger
) {}
async collectCurrentMetrics(): Promise<{
connectionPool: any;
query: any;
system: any;
}> {
try {
const [connectionPoolMetrics, queryMetrics, systemMetrics] = await Promise.all([
this.collectConnectionPoolMetrics(),
this.collectQueryMetrics(),
this.collectSystemMetrics(),
]);
return {
connectionPool: connectionPoolMetrics,
query: queryMetrics,
system: systemMetrics,
};
} catch (error) {
this.logger.error('Failed to collect metrics', {
error: error instanceof Error ? error.message : String(error),
});
throw error;
}
}
private async collectConnectionPoolMetrics(): Promise<{
totalConnections: number;
activeConnections: number;
idleConnections: number;
utilization: number;
}> {
try {
const connectionStats = this.dbManager.getConnectionStats();
const totalConnections = connectionStats.total || 0;
const activeConnections = connectionStats.active || 0;
const idleConnections = totalConnections - activeConnections;
const utilization =
totalConnections > 0 ? Math.round((activeConnections / totalConnections) * 100) : 0;
return {
totalConnections,
activeConnections,
idleConnections,
utilization,
};
} catch (error) {
this.logger.error('Failed to collect connection pool metrics', { error });
return {
totalConnections: 0,
activeConnections: 0,
idleConnections: 0,
utilization: 0,
};
}
}
private async collectQueryMetrics(): Promise<{
totalQueries: number;
slowQueries: number;
averageExecutionTime: number;
maxExecutionTime: number;
minExecutionTime: number;
}> {
try {
// 실제 구현에서는 쿼리 통계를 수집해야 함
// 현재는 더미 데이터 반환
return {
totalQueries: Math.floor(Math.random() * 1000) + 100,
slowQueries: Math.floor(Math.random() * 10),
averageExecutionTime: Math.floor(Math.random() * 1000) + 100,
maxExecutionTime: Math.floor(Math.random() * 5000) + 1000,
minExecutionTime: Math.floor(Math.random() * 100) + 10,
};
} catch (error) {
this.logger.error('Failed to collect query metrics', { error });
return {
totalQueries: 0,
slowQueries: 0,
averageExecutionTime: 0,
maxExecutionTime: 0,
minExecutionTime: 0,
};
}
}
private async collectSystemMetrics(): Promise<{
cpuUsage: number;
memoryUsage: number;
diskUsage: number;
}> {
try {
// Node.js 시스템 메트릭 수집
const memoryUsage = process.memoryUsage();
const totalMemory = memoryUsage.heapTotal + memoryUsage.external;
const usedMemory = memoryUsage.heapUsed;
// CPU 사용률은 간단한 추정치 (실제로는 더 정확한 측정 필요)
const cpuUsage = Math.floor(Math.random() * 100); // 더미 데이터
// 메모리 사용률 계산
const memoryUsagePercent = totalMemory > 0 ? Math.round((usedMemory / totalMemory) * 100) : 0;
// 디스크 사용률 (더미 데이터)
const diskUsage = Math.floor(Math.random() * 100);
return {
cpuUsage,
memoryUsage: memoryUsagePercent,
diskUsage,
};
} catch (error) {
this.logger.error('Failed to collect system metrics', { error });
return {
cpuUsage: 0,
memoryUsage: 0,
diskUsage: 0,
};
}
}
}
