feat: 添加货币和汇率管理功能
refactor: 重构前端路由和登录逻辑 docs: 更新业务闭环、任务和架构文档 style: 调整代码格式和文件结构 chore: 更新依赖项和配置文件
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412
server/src/core/exception/ExceptionMonitor.ts
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412
server/src/core/exception/ExceptionMonitor.ts
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import { DomainEventBus } from '../runtime/DomainEventBus';
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// 异常信息
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export interface ExceptionInfo {
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id: string;
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type: string;
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message: string;
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stack?: string;
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service: string;
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context?: Record<string, any>;
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severity: 'low' | 'medium' | 'high' | 'critical';
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status: 'open' | 'processing' | 'resolved' | 'ignored';
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createdAt: Date;
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lastUpdated: Date;
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resolvedAt?: Date;
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resolvedBy?: string;
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}
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// 异常统计
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export interface ExceptionStats {
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total: number;
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bySeverity: {
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low: number;
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medium: number;
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high: number;
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critical: number;
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};
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byStatus: {
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open: number;
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processing: number;
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resolved: number;
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ignored: number;
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};
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byService: Record<string, number>;
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byType: Record<string, number>;
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averageResolutionTime: number; // 平均解决时间（分钟）
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last24Hours: number;
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last7Days: number;
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}
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// 异常监控
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export class ExceptionMonitor {
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private static instance: ExceptionMonitor;
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private exceptions: Map<string, ExceptionInfo> = new Map();
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private eventBus: DomainEventBus;
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private severityThresholds: Record<string, number> = {
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low: 10,
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medium: 5,
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high: 2,
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critical: 1
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};
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private constructor() {
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this.eventBus = DomainEventBus.getInstance();
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}
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static getInstance(): ExceptionMonitor {
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if (!ExceptionMonitor.instance) {
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ExceptionMonitor.instance = new ExceptionMonitor();
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}
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return ExceptionMonitor.instance;
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}
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// 记录异常
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async recordException(exception: Omit<ExceptionInfo, 'id' | 'status' | 'createdAt' | 'lastUpdated'>): Promise<ExceptionInfo> {
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const id = `exception_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
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const newException: ExceptionInfo = {
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...exception,
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id,
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status: 'open',
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createdAt: new Date(),
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lastUpdated: new Date()
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};
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this.exceptions.set(id, newException);
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this.eventBus.publish('exception.recorded', newException);
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// 检查是否需要触发告警
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await this.checkAlertThreshold(newException);
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return newException;
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}
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// 获取异常信息
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getException(exceptionId: string): ExceptionInfo | undefined {
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return this.exceptions.get(exceptionId);
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}
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// 获取所有异常
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getAllExceptions(filters?: {
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severity?: string;
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status?: string;
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service?: string;
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type?: string;
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startDate?: Date;
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endDate?: Date;
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}): ExceptionInfo[] {
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let result = Array.from(this.exceptions.values());
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if (filters) {
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if (filters.severity) {
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result = result.filter(e => e.severity === filters.severity);
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}
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if (filters.status) {
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result = result.filter(e => e.status === filters.status);
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}
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if (filters.service) {
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result = result.filter(e => e.service === filters.service);
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}
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if (filters.type) {
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result = result.filter(e => e.type === filters.type);
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}
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if (filters.startDate) {
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result = result.filter(e => e.createdAt >= filters.startDate!);
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}
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if (filters.endDate) {
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result = result.filter(e => e.createdAt <= filters.endDate!);
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}
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}
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return result.sort((a, b) => b.createdAt.getTime() - a.createdAt.getTime());
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}
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// 更新异常状态
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async updateExceptionStatus(exceptionId: string, status: 'open' | 'processing' | 'resolved' | 'ignored', resolvedBy?: string): Promise<ExceptionInfo | null> {
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const exception = this.exceptions.get(exceptionId);
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if (!exception) {
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return null;
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}
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const updatedException = {
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...exception,
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status,
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lastUpdated: new Date(),
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resolvedAt: status === 'resolved' ? new Date() : exception.resolvedAt,
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resolvedBy: status === 'resolved' ? resolvedBy : exception.resolvedBy
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};
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this.exceptions.set(exceptionId, updatedException);
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this.eventBus.publish('exception.status.updated', updatedException);
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return updatedException;
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}
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// 更新异常信息
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async updateException(exceptionId: string, updates: Partial<ExceptionInfo>): Promise<ExceptionInfo | null> {
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const exception = this.exceptions.get(exceptionId);
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if (!exception) {
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return null;
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}
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const updatedException = {
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...exception,
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...updates,
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lastUpdated: new Date()
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};
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this.exceptions.set(exceptionId, updatedException);
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this.eventBus.publish('exception.updated', updatedException);
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return updatedException;
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}
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// 检查告警阈值
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private async checkAlertThreshold(exception: ExceptionInfo): Promise<void> {
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const threshold = this.severityThresholds[exception.severity];
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if (!threshold) return;
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// 检查过去24小时内相同类型的异常数量
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const last24Hours = new Date();
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last24Hours.setHours(last24Hours.getHours() - 24);
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const similarExceptions = Array.from(this.exceptions.values()).filter(e =>
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e.type === exception.type &&
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e.service === exception.service &&
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e.createdAt >= last24Hours
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);
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if (similarExceptions.length >= threshold) {
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this.eventBus.publish('exception.alert', {
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exception,
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count: similarExceptions.length,
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threshold,
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timestamp: new Date()
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});
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}
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}
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// 获取异常统计
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getExceptionStats(): ExceptionStats {
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const exceptions = Array.from(this.exceptions.values());
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const total = exceptions.length;
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const bySeverity = {
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low: 0,
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medium: 0,
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high: 0,
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critical: 0
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};
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const byStatus = {
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open: 0,
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processing: 0,
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resolved: 0,
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ignored: 0
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};
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const byService: Record<string, number> = {};
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const byType: Record<string, number> = {};
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let totalResolutionTime = 0;
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let resolvedExceptions = 0;
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const last24Hours = new Date();
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last24Hours.setHours(last24Hours.getHours() - 24);
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const last7Days = new Date();
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last7Days.setDate(last7Days.getDate() - 7);
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let exceptionsLast24Hours = 0;
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let exceptionsLast7Days = 0;
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for (const exception of exceptions) {
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bySeverity[exception.severity]++;
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byStatus[exception.status]++;
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byService[exception.service] = (byService[exception.service] || 0) + 1;
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byType[exception.type] = (byType[exception.type] || 0) + 1;
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if (exception.status === 'resolved' && exception.resolvedAt) {
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const resolutionTime = (exception.resolvedAt.getTime() - exception.createdAt.getTime()) / (1000 * 60); // 转换为分钟
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totalResolutionTime += resolutionTime;
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resolvedExceptions++;
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}
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if (exception.createdAt >= last24Hours) {
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exceptionsLast24Hours++;
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}
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if (exception.createdAt >= last7Days) {
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exceptionsLast7Days++;
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}
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}
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const averageResolutionTime = resolvedExceptions > 0
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? totalResolutionTime / resolvedExceptions
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: 0;
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return {
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total,
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bySeverity,
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byStatus,
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byService,
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byType,
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averageResolutionTime,
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last24Hours: exceptionsLast24Hours,
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last7Days: exceptionsLast7Days
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};
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}
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// 获取服务异常统计
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getServiceExceptionStats(service: string): ExceptionStats {
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const serviceExceptions = Array.from(this.exceptions.values()).filter(e => e.service === service);
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const total = serviceExceptions.length;
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const bySeverity = {
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low: 0,
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medium: 0,
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high: 0,
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critical: 0
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};
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const byStatus = {
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open: 0,
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processing: 0,
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resolved: 0,
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ignored: 0
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};
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const byType: Record<string, number> = {};
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let totalResolutionTime = 0;
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let resolvedExceptions = 0;
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const last24Hours = new Date();
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last24Hours.setHours(last24Hours.getHours() - 24);
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const last7Days = new Date();
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last7Days.setDate(last7Days.getDate() - 7);
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let exceptionsLast24Hours = 0;
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let exceptionsLast7Days = 0;
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for (const exception of serviceExceptions) {
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bySeverity[exception.severity]++;
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byStatus[exception.status]++;
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byType[exception.type] = (byType[exception.type] || 0) + 1;
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if (exception.status === 'resolved' && exception.resolvedAt) {
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const resolutionTime = (exception.resolvedAt.getTime() - exception.createdAt.getTime()) / (1000 * 60); // 转换为分钟
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totalResolutionTime += resolutionTime;
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resolvedExceptions++;
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}
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if (exception.createdAt >= last24Hours) {
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exceptionsLast24Hours++;
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}
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if (exception.createdAt >= last7Days) {
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exceptionsLast7Days++;
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}
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}
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const averageResolutionTime = resolvedExceptions > 0
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? totalResolutionTime / resolvedExceptions
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: 0;
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return {
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total,
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bySeverity,
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byStatus,
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byService: { [service]: total },
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byType,
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averageResolutionTime,
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last24Hours: exceptionsLast24Hours,
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last7Days: exceptionsLast7Days
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};
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}
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// 清理旧异常
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async cleanupOldExceptions(days: number = 30): Promise<number> {
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const cutoffDate = new Date();
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cutoffDate.setDate(cutoffDate.getDate() - days);
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let removedCount = 0;
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for (const [id, exception] of this.exceptions.entries()) {
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if (exception.createdAt < cutoffDate && exception.status === 'resolved') {
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this.exceptions.delete(id);
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removedCount++;
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}
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}
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if (removedCount > 0) {
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this.eventBus.publish('exception.cleanup', {
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removedCount,
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cutoffDate,
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timestamp: new Date()
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});
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}
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return removedCount;
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}
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// 生成异常报告
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async generateExceptionReport(startDate: Date, endDate: Date): Promise<{
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summary: ExceptionStats;
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topExceptions: ExceptionInfo[];
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serviceStats: Record<string, ExceptionStats>;
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}> {
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const filteredExceptions = Array.from(this.exceptions.values()).filter(
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e => e.createdAt >= startDate && e.createdAt <= endDate
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);
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// 按频率排序的异常类型
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const typeFrequency: Record<string, number> = {};
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for (const exception of filteredExceptions) {
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typeFrequency[exception.type] = (typeFrequency[exception.type] || 0) + 1;
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}
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const sortedTypes = Object.entries(typeFrequency)
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.sort(([, a], [, b]) => b - a)
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.slice(0, 10)
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.map(([type]) => type);
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const topExceptions = filteredExceptions
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.filter(e => sortedTypes.includes(e.type))
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.slice(0, 20);
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// 按服务分组的统计
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const serviceStats: Record<string, ExceptionStats> = {};
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const services = Array.from(new Set(filteredExceptions.map(e => e.service)));
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for (const service of services) {
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serviceStats[service] = this.getServiceExceptionStats(service);
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}
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return {
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summary: this.getExceptionStats(),
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topExceptions,
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serviceStats
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};
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}
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// 设置严重性阈值
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setSeverityThresholds(thresholds: Record<string, number>): void {
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this.severityThresholds = {
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...this.severityThresholds,
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...thresholds
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};
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}
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// 获取严重性阈值
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getSeverityThresholds(): Record<string, number> {
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return { ...this.severityThresholds };
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}
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}
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