2025/9/1大约 20 分钟
第14章：高级特性和扩展开发
学习目标
- 掌握MCP协议的高级特性和扩展机制
- 开发自定义协议扩展和插件
- 实现多语言MCP Server支持
- 学习与其他AI框架的集成
- 探索MCP在企业级应用中的实践
1. 协议扩展机制
1.1 自定义协议扩展
// MCP协议扩展基础架构
interface ProtocolExtension {
name: string;
version: string;
capabilities: ExtensionCapability[];
handlers: ExtensionHandler[];
metadata: ExtensionMetadata;
}
interface ExtensionCapability {
name: string;
description: string;
parameters?: Record<string, any>;
optional?: boolean;
}
interface ExtensionHandler {
method: string;
handler: (request: any) => Promise<any>;
schema?: any;
}
interface ExtensionMetadata {
author: string;
description: string;
homepage?: string;
license: string;
tags: string[];
}
// 协议扩展管理器
class ProtocolExtensionManager {
private extensions: Map<string, ProtocolExtension> = new Map();
private server: Server;
constructor(server: Server) {
this.server = server;
}
registerExtension(extension: ProtocolExtension): void {
// 验证扩展
this.validateExtension(extension);
// 注册能力
this.registerCapabilities(extension);
// 注册处理器
this.registerHandlers(extension);
// 存储扩展
this.extensions.set(extension.name, extension);
console.log(`Extension registered: ${extension.name} v${extension.version}`);
}
private validateExtension(extension: ProtocolExtension): void {
if (!extension.name || !extension.version) {
throw new Error("Extension must have name and version");
}
if (this.extensions.has(extension.name)) {
throw new Error(`Extension already registered: ${extension.name}`);
}
// 验证处理器方法名不冲突
for (const handler of extension.handlers) {
if (this.server.hasHandler(handler.method)) {
throw new Error(`Handler method already exists: ${handler.method}`);
}
}
}
private registerCapabilities(extension: ProtocolExtension): void {
// 扩展服务器能力声明
const currentCapabilities = this.server.getCapabilities();
extension.capabilities.forEach(capability => {
currentCapabilities.extensions = currentCapabilities.extensions || {};
currentCapabilities.extensions[extension.name] = {
version: extension.version,
capabilities: extension.capabilities.map(c => c.name)
};
});
}
private registerHandlers(extension: ProtocolExtension): void {
extension.handlers.forEach(handlerDef => {
this.server.setRequestHandler(handlerDef.method, async (request) => {
try {
// 验证请求schema（如果定义了）
if (handlerDef.schema) {
this.validateRequest(request, handlerDef.schema);
}
// 调用扩展处理器
return await handlerDef.handler(request);
} catch (error) {
throw new Error(`Extension ${extension.name} handler failed: ${error.message}`);
}
});
});
}
private validateRequest(request: any, schema: any): void {
// 使用JSON Schema验证请求
// 简化实现
}
unregisterExtension(extensionName: string): boolean {
const extension = this.extensions.get(extensionName);
if (!extension) {
return false;
}
// 移除处理器
extension.handlers.forEach(handler => {
this.server.removeHandler(handler.method);
});
// 移除扩展
this.extensions.delete(extensionName);
console.log(`Extension unregistered: ${extensionName}`);
return true;
}
getExtension(name: string): ProtocolExtension | undefined {
return this.extensions.get(name);
}
listExtensions(): ProtocolExtension[] {
return Array.from(this.extensions.values());
}
getExtensionCapabilities(): Record<string, any> {
const capabilities: Record<string, any> = {};
for (const [name, extension] of this.extensions) {
capabilities[name] = {
version: extension.version,
capabilities: extension.capabilities,
metadata: extension.metadata
};
}
return capabilities;
}
}1.2 流式处理扩展
// 流式处理扩展实现
interface StreamingExtension extends ProtocolExtension {
streamingCapabilities: StreamingCapability[];
}
interface StreamingCapability {
name: string;
chunkSize: number;
timeout: number;
compression?: boolean;
}
class StreamingProtocolExtension implements StreamingExtension {
name = "streaming";
version = "1.0.0";
capabilities: ExtensionCapability[] = [
{
name: "streaming_tools",
description: "Support for streaming tool execution",
parameters: {
maxChunkSize: 8192,
timeout: 30000
}
},
{
name: "streaming_resources",
description: "Support for streaming resource content",
parameters: {
maxChunkSize: 16384,
compression: true
}
}
];
streamingCapabilities: StreamingCapability[] = [
{
name: "tool_execution_stream",
chunkSize: 8192,
timeout: 30000,
compression: false
},
{
name: "resource_content_stream",
chunkSize: 16384,
timeout: 60000,
compression: true
}
];
handlers: ExtensionHandler[] = [
{
method: "streaming/tools/call",
handler: this.handleStreamingToolCall.bind(this)
},
{
method: "streaming/resources/read",
handler: this.handleStreamingResourceRead.bind(this)
}
];
metadata: ExtensionMetadata = {
author: "MCP Team",
description: "Streaming support for tools and resources",
license: "MIT",
tags: ["streaming", "performance", "tools", "resources"]
};
private async handleStreamingToolCall(request: any): Promise<any> {
const { name, arguments: args, streamId } = request.params;
// 创建流式响应
const stream = new ToolExecutionStream(streamId);
try {
// 开始工具执行
stream.start();
// 模拟长时间运行的工具
const result = await this.executeToolWithStreaming(name, args, stream);
// 完成流
stream.complete(result);
return {
streamId,
status: "completed",
finalResult: result
};
} catch (error) {
stream.error(error);
throw error;
}
}
private async executeToolWithStreaming(
toolName: string,
args: any,
stream: ToolExecutionStream
): Promise<any> {
// 模拟分步骤执行
const steps = [
"Initializing tool execution",
"Processing input parameters",
"Executing main logic",
"Generating output",
"Finalizing results"
];
for (let i = 0; i < steps.length; i++) {
const step = steps[i];
// 发送进度更新
stream.sendProgress({
step: i + 1,
totalSteps: steps.length,
description: step,
timestamp: new Date()
});
// 模拟工作
await new Promise(resolve => setTimeout(resolve, 1000));
}
return { result: "Tool execution completed successfully" };
}
private async handleStreamingResourceRead(request: any): Promise<any> {
const { uri, streamId } = request.params;
const stream = new ResourceContentStream(streamId);
try {
stream.start();
// 模拟分块读取大型资源
const content = await this.readResourceInChunks(uri, stream);
stream.complete();
return {
streamId,
status: "completed",
totalSize: content.length
};
} catch (error) {
stream.error(error);
throw error;
}
}
private async readResourceInChunks(uri: string, stream: ResourceContentStream): Promise<string> {
// 模拟大型资源分块读取
const totalSize = 100000; // 100KB
const chunkSize = 8192; // 8KB chunks
let content = "";
for (let offset = 0; offset < totalSize; offset += chunkSize) {
const chunk = "x".repeat(Math.min(chunkSize, totalSize - offset));
content += chunk;
// 发送数据块
stream.sendChunk({
data: chunk,
offset,
size: chunk.length,
totalSize
});
// 模拟IO延迟
await new Promise(resolve => setTimeout(resolve, 100));
}
return content;
}
}
// 流式执行管理器
class ToolExecutionStream {
private streamId: string;
private startTime: Date;
private chunks: StreamChunk[] = [];
constructor(streamId: string) {
this.streamId = streamId;
}
start(): void {
this.startTime = new Date();
this.sendEvent({
type: "stream_start",
streamId: this.streamId,
timestamp: this.startTime
});
}
sendProgress(progress: ProgressUpdate): void {
this.sendEvent({
type: "progress_update",
streamId: this.streamId,
progress,
timestamp: new Date()
});
}
sendChunk(data: any): void {
const chunk: StreamChunk = {
id: this.generateChunkId(),
streamId: this.streamId,
data,
timestamp: new Date()
};
this.chunks.push(chunk);
this.sendEvent({
type: "data_chunk",
chunk
});
}
complete(finalResult?: any): void {
this.sendEvent({
type: "stream_complete",
streamId: this.streamId,
finalResult,
duration: Date.now() - this.startTime.getTime(),
totalChunks: this.chunks.length,
timestamp: new Date()
});
}
error(error: Error): void {
this.sendEvent({
type: "stream_error",
streamId: this.streamId,
error: error.message,
timestamp: new Date()
});
}
private sendEvent(event: StreamEvent): void {
// 发送流事件到客户端
// 实际实现将使用WebSocket或SSE
console.log("Stream event:", JSON.stringify(event, null, 2));
}
private generateChunkId(): string {
return `chunk_${Date.now()}_${Math.random().toString(36).substr(2, 9)}`;
}
}
class ResourceContentStream extends ToolExecutionStream {
sendChunk(chunk: {
data: string;
offset: number;
size: number;
totalSize: number;
}): void {
super.sendChunk(chunk);
}
}
interface StreamChunk {
id: string;
streamId: string;
data: any;
timestamp: Date;
}
interface StreamEvent {
type: string;
streamId?: string;
timestamp: Date;
[key: string]: any;
}
interface ProgressUpdate {
step: number;
totalSteps: number;
description: string;
timestamp: Date;
}2. 插件系统架构
2.1 插件框架设计
// 插件系统核心架构
interface Plugin {
name: string;
version: string;
description: string;
author: string;
dependencies?: PluginDependency[];
// 生命周期方法
onLoad?(context: PluginContext): Promise<void>;
onUnload?(context: PluginContext): Promise<void>;
onEnable?(context: PluginContext): Promise<void>;
onDisable?(context: PluginContext): Promise<void>;
// 插件提供的功能
tools?: PluginTool[];
resources?: PluginResource[];
prompts?: PluginPrompt[];
extensions?: ProtocolExtension[];
}
interface PluginDependency {
name: string;
version: string;
optional?: boolean;
}
interface PluginContext {
server: Server;
config: any;
logger: Logger;
storage: PluginStorage;
eventBus: EventBus;
}
interface PluginTool {
name: string;
description: string;
inputSchema: any;
handler: (args: any, context: PluginContext) => Promise<any>;
}
interface PluginResource {
uri: string;
name: string;
description: string;
mimeType: string;
provider: (context: PluginContext) => Promise<any>;
}
interface PluginPrompt {
name: string;
description: string;
arguments: any[];
template: string | ((args: any, context: PluginContext) => Promise<string>);
}
// 插件管理器
class PluginManager {
private plugins: Map<string, LoadedPlugin> = new Map();
private server: Server;
private config: PluginManagerConfig;
private eventBus: EventBus;
constructor(server: Server, config: PluginManagerConfig) {
this.server = server;
this.config = config;
this.eventBus = new EventBus();
this.setupEventHandlers();
}
async loadPlugin(pluginPath: string): Promise<void> {
try {
// 加载插件模块
const pluginModule = await import(pluginPath);
const plugin: Plugin = pluginModule.default || pluginModule;
// 验证插件
this.validatePlugin(plugin);
// 检查依赖
await this.checkDependencies(plugin);
// 创建插件上下文
const context = this.createPluginContext(plugin);
// 加载插件
if (plugin.onLoad) {
await plugin.onLoad(context);
}
// 注册插件功能
await this.registerPluginFeatures(plugin, context);
// 启用插件
if (plugin.onEnable) {
await plugin.onEnable(context);
}
// 存储加载的插件
const loadedPlugin: LoadedPlugin = {
plugin,
context,
path: pluginPath,
loadTime: new Date(),
enabled: true
};
this.plugins.set(plugin.name, loadedPlugin);
this.eventBus.emit('plugin:loaded', { plugin: plugin.name });
console.log(`Plugin loaded: ${plugin.name} v${plugin.version}`);
} catch (error) {
console.error(`Failed to load plugin from ${pluginPath}:`, error);
throw error;
}
}
async unloadPlugin(pluginName: string): Promise<void> {
const loadedPlugin = this.plugins.get(pluginName);
if (!loadedPlugin) {
throw new Error(`Plugin not found: ${pluginName}`);
}
try {
// 禁用插件
if (loadedPlugin.plugin.onDisable) {
await loadedPlugin.plugin.onDisable(loadedPlugin.context);
}
// 注销插件功能
await this.unregisterPluginFeatures(loadedPlugin.plugin);
// 卸载插件
if (loadedPlugin.plugin.onUnload) {
await loadedPlugin.plugin.onUnload(loadedPlugin.context);
}
// 移除插件
this.plugins.delete(pluginName);
this.eventBus.emit('plugin:unloaded', { plugin: pluginName });
console.log(`Plugin unloaded: ${pluginName}`);
} catch (error) {
console.error(`Failed to unload plugin ${pluginName}:`, error);
throw error;
}
}
private validatePlugin(plugin: Plugin): void {
if (!plugin.name || !plugin.version) {
throw new Error("Plugin must have name and version");
}
if (this.plugins.has(plugin.name)) {
throw new Error(`Plugin already loaded: ${plugin.name}`);
}
// 验证版本格式
if (!/^\d+\.\d+\.\d+$/.test(plugin.version)) {
throw new Error("Plugin version must follow semver format");
}
}
private async checkDependencies(plugin: Plugin): Promise<void> {
if (!plugin.dependencies) return;
for (const dep of plugin.dependencies) {
const loadedDep = this.plugins.get(dep.name);
if (!loadedDep) {
if (dep.optional) {
console.warn(`Optional dependency not found: ${dep.name}`);
continue;
} else {
throw new Error(`Required dependency not found: ${dep.name}`);
}
}
// 检查版本兼容性
if (!this.isVersionCompatible(loadedDep.plugin.version, dep.version)) {
throw new Error(`Incompatible dependency version: ${dep.name}`);
}
}
}
private isVersionCompatible(installed: string, required: string): boolean {
// 简化的版本兼容性检查
return installed >= required;
}
private createPluginContext(plugin: Plugin): PluginContext {
return {
server: this.server,
config: this.config.pluginConfigs?.[plugin.name] || {},
logger: this.createPluginLogger(plugin.name),
storage: this.createPluginStorage(plugin.name),
eventBus: this.eventBus
};
}
private async registerPluginFeatures(plugin: Plugin, context: PluginContext): Promise<void> {
// 注册工具
if (plugin.tools) {
for (const tool of plugin.tools) {
this.server.setRequestHandler(`tools/call`, async (request) => {
if (request.params.name === tool.name) {
return await tool.handler(request.params.arguments, context);
}
});
}
}
// 注册资源
if (plugin.resources) {
for (const resource of plugin.resources) {
// 注册资源提供者
}
}
// 注册提示
if (plugin.prompts) {
for (const prompt of plugin.prompts) {
// 注册提示模板
}
}
// 注册协议扩展
if (plugin.extensions) {
for (const extension of plugin.extensions) {
const extensionManager = this.getExtensionManager();
extensionManager.registerExtension(extension);
}
}
}
private async unregisterPluginFeatures(plugin: Plugin): Promise<void> {
// 注销各种功能
// 实现与registerPluginFeatures相反的操作
}
private createPluginLogger(pluginName: string): Logger {
return {
debug: (msg: string, ...args: any[]) => console.debug(`[${pluginName}] ${msg}`, ...args),
info: (msg: string, ...args: any[]) => console.info(`[${pluginName}] ${msg}`, ...args),
warn: (msg: string, ...args: any[]) => console.warn(`[${pluginName}] ${msg}`, ...args),
error: (msg: string, ...args: any[]) => console.error(`[${pluginName}] ${msg}`, ...args)
};
}
private createPluginStorage(pluginName: string): PluginStorage {
return new FilePluginStorage(path.join(this.config.dataDirectory, 'plugins', pluginName));
}
private getExtensionManager(): ProtocolExtensionManager {
// 返回协议扩展管理器实例
return new ProtocolExtensionManager(this.server);
}
private setupEventHandlers(): void {
this.eventBus.on('plugin:error', (event) => {
console.error(`Plugin error: ${event.plugin} - ${event.error}`);
});
}
// 公共API
getLoadedPlugins(): string[] {
return Array.from(this.plugins.keys());
}
getPlugin(name: string): Plugin | undefined {
return this.plugins.get(name)?.plugin;
}
async reloadPlugin(pluginName: string): Promise<void> {
const loadedPlugin = this.plugins.get(pluginName);
if (!loadedPlugin) {
throw new Error(`Plugin not found: ${pluginName}`);
}
const pluginPath = loadedPlugin.path;
await this.unloadPlugin(pluginName);
await this.loadPlugin(pluginPath);
}
}
interface LoadedPlugin {
plugin: Plugin;
context: PluginContext;
path: string;
loadTime: Date;
enabled: boolean;
}
interface PluginManagerConfig {
pluginDirectory: string;
dataDirectory: string;
pluginConfigs?: Record<string, any>;
}
interface Logger {
debug(message: string, ...args: any[]): void;
info(message: string, ...args: any[]): void;
warn(message: string, ...args: any[]): void;
error(message: string, ...args: any[]): void;
}
interface PluginStorage {
get(key: string): Promise<any>;
set(key: string, value: any): Promise<void>;
delete(key: string): Promise<void>;
keys(): Promise<string[]>;
}
class FilePluginStorage implements PluginStorage {
private baseDir: string;
constructor(baseDir: string) {
this.baseDir = baseDir;
// 确保目录存在
fs.mkdirSync(this.baseDir, { recursive: true });
}
async get(key: string): Promise<any> {
const filePath = path.join(this.baseDir, `${key}.json`);
try {
const data = await fs.readFile(filePath, 'utf8');
return JSON.parse(data);
} catch (error) {
if (error.code === 'ENOENT') {
return undefined;
}
throw error;
}
}
async set(key: string, value: any): Promise<void> {
const filePath = path.join(this.baseDir, `${key}.json`);
await fs.writeFile(filePath, JSON.stringify(value, null, 2));
}
async delete(key: string): Promise<void> {
const filePath = path.join(this.baseDir, `${key}.json`);
try {
await fs.unlink(filePath);
} catch (error) {
if (error.code !== 'ENOENT') {
throw error;
}
}
}
async keys(): Promise<string[]> {
const files = await fs.readdir(this.baseDir);
return files
.filter(file => file.endsWith('.json'))
.map(file => file.slice(0, -5)); // 移除.json后缀
}
}
class EventBus {
private listeners: Map<string, Function[]> = new Map();
on(event: string, listener: Function): void {
const listeners = this.listeners.get(event) || [];
listeners.push(listener);
this.listeners.set(event, listeners);
}
off(event: string, listener: Function): void {
const listeners = this.listeners.get(event);
if (listeners) {
const index = listeners.indexOf(listener);
if (index !== -1) {
listeners.splice(index, 1);
}
}
}
emit(event: string, data: any): void {
const listeners = this.listeners.get(event);
if (listeners) {
listeners.forEach(listener => {
try {
listener(data);
} catch (error) {
console.error(`Event listener error for ${event}:`, error);
}
});
}
}
}2.2 示例插件实现
// 示例插件：天气服务插件
class WeatherServicePlugin implements Plugin {
name = "weather-service";
version = "1.0.0";
description = "Weather information service plugin";
author = "Weather Team";
private apiKey: string;
private cache: Map<string, any> = new Map();
dependencies: PluginDependency[] = [
{
name: "http-client",
version: "1.0.0",
optional: false
}
];
tools: PluginTool[] = [
{
name: "get_weather",
description: "Get current weather for a location",
inputSchema: {
type: "object",
properties: {
location: { type: "string", description: "City name or coordinates" },
units: { type: "string", enum: ["metric", "imperial"], default: "metric" }
},
required: ["location"]
},
handler: this.getWeather.bind(this)
},
{
name: "get_forecast",
description: "Get weather forecast for a location",
inputSchema: {
type: "object",
properties: {
location: { type: "string", description: "City name or coordinates" },
days: { type: "number", minimum: 1, maximum: 7, default: 5 }
},
required: ["location"]
},
handler: this.getForecast.bind(this)
}
];
resources: PluginResource[] = [
{
uri: "weather://current",
name: "Current Weather Data",
description: "Real-time weather information",
mimeType: "application/json",
provider: this.getCurrentWeatherData.bind(this)
}
];
prompts: PluginPrompt[] = [
{
name: "weather_analysis",
description: "Analyze weather conditions",
arguments: [
{
name: "location",
description: "Location to analyze",
required: true
},
{
name: "context",
description: "Analysis context (travel, sports, etc.)",
required: false
}
],
template: this.generateWeatherAnalysisPrompt.bind(this)
}
];
async onLoad(context: PluginContext): Promise<void> {
this.apiKey = context.config.apiKey;
if (!this.apiKey) {
throw new Error("Weather API key not configured");
}
context.logger.info("Weather service plugin loaded");
}
async onUnload(context: PluginContext): Promise<void> {
this.cache.clear();
context.logger.info("Weather service plugin unloaded");
}
async onEnable(context: PluginContext): Promise<void> {
context.logger.info("Weather service plugin enabled");
}
async onDisable(context: PluginContext): Promise<void> {
context.logger.info("Weather service plugin disabled");
}
private async getWeather(args: any, context: PluginContext): Promise<any> {
const { location, units = "metric" } = args;
// 检查缓存
const cacheKey = `weather:${location}:${units}`;
const cached = this.cache.get(cacheKey);
if (cached && Date.now() - cached.timestamp < 300000) { // 5分钟缓存
return {
content: [{
type: "text",
text: JSON.stringify(cached.data, null, 2)
}]
};
}
try {
// 调用天气API
const weatherData = await this.fetchWeatherData(location, units);
// 缓存结果
this.cache.set(cacheKey, {
data: weatherData,
timestamp: Date.now()
});
return {
content: [{
type: "text",
text: JSON.stringify(weatherData, null, 2)
}]
};
} catch (error) {
context.logger.error(`Failed to get weather for ${location}:`, error);
throw error;
}
}
private async getForecast(args: any, context: PluginContext): Promise<any> {
const { location, days = 5 } = args;
try {
const forecastData = await this.fetchForecastData(location, days);
return {
content: [{
type: "text",
text: JSON.stringify(forecastData, null, 2)
}]
};
} catch (error) {
context.logger.error(`Failed to get forecast for ${location}:`, error);
throw error;
}
}
private async getCurrentWeatherData(context: PluginContext): Promise<any> {
// 返回所有缓存的天气数据
const allData = Array.from(this.cache.entries()).map(([key, value]) => ({
location: key.split(':')[1],
data: value.data,
timestamp: value.timestamp
}));
return {
contents: [{
uri: "weather://current",
mimeType: "application/json",
text: JSON.stringify(allData, null, 2)
}]
};
}
private async generateWeatherAnalysisPrompt(args: any, context: PluginContext): Promise<string> {
const { location, context: analysisContext } = args;
// 获取当前天气
const weatherData = await this.fetchWeatherData(location, "metric");
let prompt = `Analyze the current weather conditions for ${location}:\n\n`;
prompt += `Temperature: ${weatherData.temperature}°C\n`;
prompt += `Conditions: ${weatherData.description}\n`;
prompt += `Humidity: ${weatherData.humidity}%\n`;
prompt += `Wind Speed: ${weatherData.windSpeed} m/s\n\n`;
if (analysisContext) {
prompt += `Please provide analysis specifically for ${analysisContext} activities.\n`;
}
prompt += `Consider factors like comfort, safety, and suitability for outdoor activities.`;
return prompt;
}
private async fetchWeatherData(location: string, units: string): Promise<any> {
// 模拟API调用
const response = await fetch(`https://api.openweathermap.org/data/2.5/weather?q=${location}&units=${units}&appid=${this.apiKey}`);
if (!response.ok) {
throw new Error(`Weather API error: ${response.status}`);
}
const data = await response.json();
return {
location: data.name,
country: data.sys.country,
temperature: data.main.temp,
feelsLike: data.main.feels_like,
description: data.weather[0].description,
humidity: data.main.humidity,
pressure: data.main.pressure,
windSpeed: data.wind.speed,
windDirection: data.wind.deg,
visibility: data.visibility,
cloudiness: data.clouds.all,
timestamp: new Date(data.dt * 1000).toISOString()
};
}
private async fetchForecastData(location: string, days: number): Promise<any> {
// 模拟预报API调用
const response = await fetch(`https://api.openweathermap.org/data/2.5/forecast?q=${location}&cnt=${days * 8}&appid=${this.apiKey}`);
if (!response.ok) {
throw new Error(`Forecast API error: ${response.status}`);
}
const data = await response.json();
return {
location: data.city.name,
country: data.city.country,
forecast: data.list.map((item: any) => ({
datetime: new Date(item.dt * 1000).toISOString(),
temperature: item.main.temp,
description: item.weather[0].description,
humidity: item.main.humidity,
windSpeed: item.wind.speed
}))
};
}
}
// 插件导出
export default WeatherServicePlugin;3. 多语言支持
3.1 多语言服务架构
// 多语言MCP Server桥接架构
interface LanguageBridge {
language: string;
executable: string;
args: string[];
environment?: Record<string, string>;
workingDirectory?: string;
}
class MultiLanguageServerManager {
private bridges: Map<string, LanguageBridgeInstance> = new Map();
private server: Server;
constructor(server: Server) {
this.server = server;
}
async registerLanguageBridge(config: LanguageBridge): Promise<void> {
const bridge = new LanguageBridgeInstance(config);
await bridge.start();
this.bridges.set(config.language, bridge);
// 代理来自语言桥接的请求
this.setupBridgeProxy(config.language, bridge);
console.log(`Language bridge registered: ${config.language}`);
}
private setupBridgeProxy(language: string, bridge: LanguageBridgeInstance): void {
// 代理工具调用
bridge.on('tools/list', async () => {
const tools = await bridge.sendRequest('tools/list', {});
return tools;
});
bridge.on('tools/call', async (request: any) => {
const result = await bridge.sendRequest('tools/call', request.params);
return result;
});
// 代理资源访问
bridge.on('resources/list', async () => {
const resources = await bridge.sendRequest('resources/list', {});
return resources;
});
bridge.on('resources/read', async (request: any) => {
const result = await bridge.sendRequest('resources/read', request.params);
return result;
});
// 代理提示请求
bridge.on('prompts/list', async () => {
const prompts = await bridge.sendRequest('prompts/list', {});
return prompts;
});
bridge.on('prompts/get', async (request: any) => {
const result = await bridge.sendRequest('prompts/get', request.params);
return result;
});
}
async unregisterLanguageBridge(language: string): Promise<void> {
const bridge = this.bridges.get(language);
if (bridge) {
await bridge.stop();
this.bridges.delete(language);
console.log(`Language bridge unregistered: ${language}`);
}
}
getRegisteredLanguages(): string[] {
return Array.from(this.bridges.keys());
}
getBridge(language: string): LanguageBridgeInstance | undefined {
return this.bridges.get(language);
}
}
class LanguageBridgeInstance {
private config: LanguageBridge;
private process: ChildProcess | null = null;
private requestId = 1;
private pendingRequests = new Map<number, { resolve: Function; reject: Function }>();
private eventListeners = new Map<string, Function[]>();
constructor(config: LanguageBridge) {
this.config = config;
}
async start(): Promise<void> {
const { spawn } = require('child_process');
this.process = spawn(this.config.executable, this.config.args, {
cwd: this.config.workingDirectory,
env: { ...process.env, ...this.config.environment },
stdio: ['pipe', 'pipe', 'pipe']
});
this.process.on('error', (error) => {
console.error(`Language bridge process error (${this.config.language}):`, error);
});
this.process.on('exit', (code) => {
console.log(`Language bridge process exited (${this.config.language}):`, code);
});
// 设置消息处理
this.setupMessageHandling();
}
async stop(): Promise<void> {
if (this.process) {
this.process.kill();
this.process = null;
}
}
async sendRequest(method: string, params: any): Promise<any> {
if (!this.process) {
throw new Error('Language bridge not started');
}
const id = this.requestId++;
const request = {
jsonrpc: '2.0',
id,
method,
params
};
return new Promise((resolve, reject) => {
this.pendingRequests.set(id, { resolve, reject });
this.process!.stdin!.write(JSON.stringify(request) + '\n');
// 设置超时
setTimeout(() => {
if (this.pendingRequests.has(id)) {
this.pendingRequests.delete(id);
reject(new Error('Request timeout'));
}
}, 30000);
});
}
on(event: string, listener: Function): void {
const listeners = this.eventListeners.get(event) || [];
listeners.push(listener);
this.eventListeners.set(event, listeners);
}
private setupMessageHandling(): void {
if (!this.process) return;
let buffer = '';
this.process.stdout!.on('data', (data) => {
buffer += data.toString();
let lines = buffer.split('\n');
buffer = lines.pop() || ''; // 保留不完整的行
for (const line of lines) {
if (line.trim()) {
try {
const message = JSON.parse(line);
this.handleMessage(message);
} catch (error) {
console.error(`Failed to parse message from ${this.config.language}:`, line);
}
}
}
});
this.process.stderr!.on('data', (data) => {
console.error(`Language bridge stderr (${this.config.language}):`, data.toString());
});
}
private handleMessage(message: any): void {
if (message.id !== undefined) {
// 这是一个响应
const pending = this.pendingRequests.get(message.id);
if (pending) {
this.pendingRequests.delete(message.id);
if (message.error) {
pending.reject(new Error(message.error.message));
} else {
pending.resolve(message.result);
}
}
} else if (message.method) {
// 这是一个通知或请求
const listeners = this.eventListeners.get(message.method);
if (listeners) {
listeners.forEach(listener => {
try {
listener(message);
} catch (error) {
console.error(`Event listener error for ${message.method}:`, error);
}
});
}
}
}
}3.2 Python桥接示例
# Python MCP Server桥接实现
import json
import sys
import asyncio
from typing import Dict, Any, List, Optional
from abc import ABC, abstractmethod
class MCPHandler(ABC):
@abstractmethod
async def handle_tools_list(self) -> List[Dict[str, Any]]:
pass
@abstractmethod
async def handle_tools_call(self, name: str, arguments: Dict[str, Any]) -> Any:
pass
@abstractmethod
async def handle_resources_list(self) -> List[Dict[str, Any]]:
pass
@abstractmethod
async def handle_resources_read(self, uri: str) -> Any:
pass
class PythonMCPBridge:
def __init__(self, handler: MCPHandler):
self.handler = handler
self.running = True
async def start(self):
"""启动桥接服务"""
while self.running:
try:
line = await self._read_line()
if line:
await self._handle_request(line)
except EOFError:
break
except Exception as e:
await self._send_error(None, str(e))
async def _read_line(self) -> str:
"""从stdin读取一行"""
loop = asyncio.get_event_loop()
line = await loop.run_in_executor(None, sys.stdin.readline)
return line.strip()
async def _handle_request(self, line: str):
"""处理JSON-RPC请求"""
try:
request = json.loads(line)
method = request.get('method')
params = request.get('params', {})
request_id = request.get('id')
if method == 'tools/list':
result = await self.handler.handle_tools_list()
elif method == 'tools/call':
result = await self.handler.handle_tools_call(
params.get('name'),
params.get('arguments', {})
)
elif method == 'resources/list':
result = await self.handler.handle_resources_list()
elif method == 'resources/read':
result = await self.handler.handle_resources_read(params.get('uri'))
else:
raise ValueError(f"Unknown method: {method}")
await self._send_response(request_id, result)
except Exception as e:
await self._send_error(request.get('id'), str(e))
async def _send_response(self, request_id: Any, result: Any):
"""发送成功响应"""
response = {
'jsonrpc': '2.0',
'id': request_id,
'result': result
}
print(json.dumps(response), flush=True)
async def _send_error(self, request_id: Any, error_message: str):
"""发送错误响应"""
response = {
'jsonrpc': '2.0',
'id': request_id,
'error': {
'code': -1,
'message': error_message
}
}
print(json.dumps(response), flush=True)
# 示例Python MCP Server实现
class FileOperationsHandler(MCPHandler):
def __init__(self, base_directory: str):
self.base_directory = base_directory
async def handle_tools_list(self) -> List[Dict[str, Any]]:
return [
{
'name': 'list_files',
'description': 'List files in a directory',
'inputSchema': {
'type': 'object',
'properties': {
'path': {'type': 'string', 'description': 'Directory path'}
}
}
},
{
'name': 'read_file',
'description': 'Read file content',
'inputSchema': {
'type': 'object',
'properties': {
'path': {'type': 'string', 'description': 'File path'}
},
'required': ['path']
}
}
]
async def handle_tools_call(self, name: str, arguments: Dict[str, Any]) -> Any:
if name == 'list_files':
return await self._list_files(arguments.get('path', '.'))
elif name == 'read_file':
return await self._read_file(arguments['path'])
else:
raise ValueError(f"Unknown tool: {name}")
async def handle_resources_list(self) -> List[Dict[str, Any]]:
return [
{
'uri': 'file://directory-tree',
'name': 'Directory Tree',
'description': 'Complete directory structure',
'mimeType': 'application/json'
}
]
async def handle_resources_read(self, uri: str) -> Any:
if uri == 'file://directory-tree':
tree = await self._build_directory_tree('.')
return {
'contents': [{
'uri': uri,
'mimeType': 'application/json',
'text': json.dumps(tree, indent=2)
}]
}
else:
raise ValueError(f"Unknown resource: {uri}")
async def _list_files(self, path: str) -> Dict[str, Any]:
import os
import stat
from pathlib import Path
full_path = Path(self.base_directory) / path
if not full_path.exists():
raise FileNotFoundError(f"Directory not found: {path}")
files = []
for item in full_path.iterdir():
stat_info = item.stat()
files.append({
'name': item.name,
'type': 'directory' if item.is_dir() else 'file',
'size': stat_info.st_size,
'modified': stat_info.st_mtime
})
return {
'content': [{
'type': 'text',
'text': json.dumps(files, indent=2)
}]
}
async def _read_file(self, path: str) -> Dict[str, Any]:
from pathlib import Path
full_path = Path(self.base_directory) / path
if not full_path.is_file():
raise FileNotFoundError(f"File not found: {path}")
try:
content = full_path.read_text(encoding='utf-8')
except UnicodeDecodeError:
# 处理二进制文件
content = full_path.read_bytes().hex()
return {
'content': [{
'type': 'text',
'text': content
}]
}
async def _build_directory_tree(self, path: str) -> Dict[str, Any]:
from pathlib import Path
full_path = Path(self.base_directory) / path
if not full_path.exists():
return {'name': path, 'type': 'missing'}
if full_path.is_file():
return {
'name': full_path.name,
'type': 'file',
'size': full_path.stat().st_size
}
tree = {
'name': full_path.name or 'root',
'type': 'directory',
'children': []
}
try:
for item in full_path.iterdir():
child_tree = await self._build_directory_tree(str(item.relative_to(Path(self.base_directory))))
tree['children'].append(child_tree)
except PermissionError:
tree['error'] = 'Permission denied'
return tree
# 启动Python MCP Server
async def main():
import os
base_directory = os.environ.get('MCP_BASE_DIR', '.')
handler = FileOperationsHandler(base_directory)
bridge = PythonMCPBridge(handler)
await bridge.start()
if __name__ == '__main__':
asyncio.run(main())4. AI框架集成
4.1 LangChain集成
// LangChain与MCP集成
import { Tool } from "langchain/tools";
import { CallbackManagerForToolRun } from "langchain/callbacks";
class MCPTool extends Tool {
name: string;
description: string;
private mcpClient: MCPClient;
private toolName: string;
constructor(mcpClient: MCPClient, toolDefinition: any) {
super();
this.mcpClient = mcpClient;
this.toolName = toolDefinition.name;
this.name = toolDefinition.name;
this.description = toolDefinition.description;
}
async _call(
input: string,
runManager?: CallbackManagerForToolRun
): Promise<string> {
try {
// 解析输入参数
let args: any = {};
try {
args = JSON.parse(input);
} catch {
// 如果不是JSON，作为单个字符串参数
args = { input };
}
// 调用MCP工具
const result = await this.mcpClient.callTool(this.toolName, args);
// 返回结果
if (result.content && result.content[0]) {
return result.content[0].text;
}
return JSON.stringify(result);
} catch (error) {
throw new Error(`MCP tool execution failed: ${error.message}`);
}
}
}
class MCPLangChainIntegration {
private mcpClient: MCPClient;
private tools: MCPTool[] = [];
constructor(mcpClient: MCPClient) {
this.mcpClient = mcpClient;
}
async loadTools(): Promise<MCPTool[]> {
const toolDefinitions = await this.mcpClient.listTools();
this.tools = toolDefinitions.map(toolDef =>
new MCPTool(this.mcpClient, toolDef)
);
return this.tools;
}
getTools(): MCPTool[] {
return this.tools;
}
async createAgent(llm: any): Promise<any> {
const { createReactAgent } = await import("langchain/agents");
const { pull } = await import("langchain/hub");
// 加载工具
await this.loadTools();
// 创建prompt
const prompt = await pull("hwchase17/react");
// 创建agent
const agent = await createReactAgent({
llm,
tools: this.tools,
prompt
});
return agent;
}
}
// 使用示例
async function createMCPLangChainAgent() {
const { ChatOpenAI } = await import("@langchain/openai");
const { AgentExecutor } = await import("langchain/agents");
// 创建MCP客户端
const mcpClient = new MCPClient({
transport: new StdioClientTransport({
command: "node",
args: ["mcp-server.js"]
})
});
await mcpClient.connect();
// 创建集成
const integration = new MCPLangChainIntegration(mcpClient);
// 创建LLM
const llm = new ChatOpenAI({
modelName: "gpt-4",
temperature: 0
});
// 创建agent
const agent = await integration.createAgent(llm);
// 创建executor
const executor = new AgentExecutor({
agent,
tools: integration.getTools(),
verbose: true
});
return executor;
}4.2 LlamaIndex集成
// LlamaIndex与MCP集成
interface LlamaIndexMCPConfig {
mcpClient: MCPClient;
includeResources: boolean;
includePrompts: boolean;
}
class MCPLlamaIndexIntegration {
private mcpClient: MCPClient;
private config: LlamaIndexMCPConfig;
constructor(config: LlamaIndexMCPConfig) {
this.mcpClient = config.mcpClient;
this.config = config;
}
async createToolSpecs(): Promise<any[]> {
const tools = await this.mcpClient.listTools();
return tools.map(tool => ({
tool_name: tool.name,
description: tool.description,
fn: async (args: any) => {
const result = await this.mcpClient.callTool(tool.name, args);
return result.content?.[0]?.text || JSON.stringify(result);
}
}));
}
async createDocuments(): Promise<any[]> {
if (!this.config.includeResources) {
return [];
}
const resources = await this.mcpClient.listResources();
const documents: any[] = [];
for (const resource of resources) {
try {
const content = await this.mcpClient.readResource(resource.uri);
if (content.contents && content.contents[0]) {
documents.push({
text: content.contents[0].text,
metadata: {
uri: resource.uri,
name: resource.name,
description: resource.description,
mimeType: content.contents[0].mimeType
}
});
}
} catch (error) {
console.warn(`Failed to read resource ${resource.uri}:`, error);
}
}
return documents;
}
async createQueryEngine(llm: any, embed_model: any): Promise<any> {
const { VectorStoreIndex } = await import("llamaindex");
const { FunctionTool } = await import("llamaindex");
// 创建工具
const toolSpecs = await this.createToolSpecs();
const tools = toolSpecs.map(spec =>
new FunctionTool({
name: spec.tool_name,
description: spec.description,
fn: spec.fn
})
);
// 创建文档索引
const documents = await this.createDocuments();
let index = null;
if (documents.length > 0) {
index = await VectorStoreIndex.fromDocuments(documents, {
llm,
embedModel: embed_model
});
}
// 创建查询引擎
if (index) {
const queryEngine = index.asQueryEngine({
llm,
tools
});
return queryEngine;
} else {
// 只使用工具的查询引擎
const { ReActAgent } = await import("llamaindex");
return new ReActAgent({ tools, llm });
}
}
}5. 企业级应用实践
5.1 企业集成架构
// 企业级MCP集成架构
interface EnterpriseConfig {
authentication: {
provider: "ldap" | "saml" | "oauth2" | "custom";
config: Record<string, any>;
};
authorization: {
model: "rbac" | "abac" | "custom";
policies: AuthorizationPolicy[];
};
monitoring: {
enabled: boolean;
endpoints: string[];
metrics: string[];
};
compliance: {
dataRetention: number; // days
auditLogging: boolean;
encryptionAtRest: boolean;
encryptionInTransit: boolean;
};
scaling: {
maxInstances: number;
autoScaling: boolean;
loadBalancer: string;
};
}
class EnterpriseMCPServer {
private server: Server;
private config: EnterpriseConfig;
private authProvider: EnterpriseAuthProvider;
private auditLogger: EnterpriseAuditLogger;
private metricsCollector: EnterpriseMetricsCollector;
private complianceManager: ComplianceManager;
constructor(config: EnterpriseConfig) {
this.config = config;
this.initializeComponents();
}
private initializeComponents(): void {
// 初始化认证提供者
this.authProvider = new EnterpriseAuthProvider(this.config.authentication);
// 初始化审计日志
this.auditLogger = new EnterpriseAuditLogger(this.config.compliance);
// 初始化指标收集
this.metricsCollector = new EnterpriseMetricsCollector(this.config.monitoring);
// 初始化合规管理
this.complianceManager = new ComplianceManager(this.config.compliance);
// 创建MCP服务器
this.server = new Server(
{
name: "enterprise-mcp-server",
version: "1.0.0"
},
{
capabilities: {
tools: {},
resources: {},
prompts: {},
enterprise: {
authentication: true,
authorization: true,
auditing: true,
compliance: true
}
}
}
);
this.setupMiddleware();
this.setupHandlers();
}
private setupMiddleware(): void {
// 认证中间件
this.server.use(async (request, next) => {
const authResult = await this.authProvider.authenticate(request);
if (!authResult.success) {
throw new Error("Authentication failed");
}
request.user = authResult.user;
return next();
});
// 授权中间件
this.server.use(async (request, next) => {
const authorized = await this.authProvider.authorize(request.user, request.method, request.params);
if (!authorized) {
this.auditLogger.logUnauthorizedAccess(request.user, request.method, request.params);
throw new Error("Access denied");
}
return next();
});
// 审计中间件
this.server.use(async (request, next) => {
const startTime = Date.now();
try {
const result = await next();
this.auditLogger.logSuccessfulOperation(
request.user,
request.method,
request.params,
Date.now() - startTime
);
return result;
} catch (error) {
this.auditLogger.logFailedOperation(
request.user,
request.method,
request.params,
error.message,
Date.now() - startTime
);
throw error;
}
});
// 指标收集中间件
this.server.use(async (request, next) => {
const startTime = Date.now();
this.metricsCollector.recordRequest(request.method);
try {
const result = await next();
this.metricsCollector.recordSuccess(request.method, Date.now() - startTime);
return result;
} catch (error) {
this.metricsCollector.recordError(request.method, Date.now() - startTime);
throw error;
}
});
}
private setupHandlers(): void {
// 企业级工具处理
this.server.setRequestHandler("tools/list", async (request) => {
// 根据用户权限过滤工具
const allTools = await this.getAllTools();
const authorizedTools = await this.filterToolsByPermission(allTools, request.user);
return { tools: authorizedTools };
});
// 企业级资源处理
this.server.setRequestHandler("resources/read", async (request) => {
const { uri } = request.params;
// 检查资源访问权限
const hasAccess = await this.checkResourceAccess(uri, request.user);
if (!hasAccess) {
throw new Error("Resource access denied");
}
// 应用数据脱敏
const rawContent = await this.readResource(uri);
const sanitizedContent = await this.complianceManager.sanitizeData(rawContent, request.user);
return sanitizedContent;
});
// 企业管理端点
this.server.setRequestHandler("enterprise/health", async () => {
return this.generateHealthReport();
});
this.server.setRequestHandler("enterprise/metrics", async (request) => {
this.requireAdminRole(request.user);
return this.metricsCollector.getMetrics();
});
this.server.setRequestHandler("enterprise/audit", async (request) => {
this.requireAdminRole(request.user);
return this.auditLogger.getAuditLogs(request.params);
});
}
private async getAllTools(): Promise<any[]> {
// 实现获取所有可用工具
return [];
}
private async filterToolsByPermission(tools: any[], user: any): Promise<any[]> {
const filteredTools = [];
for (const tool of tools) {
const hasPermission = await this.authProvider.checkToolPermission(user, tool.name);
if (hasPermission) {
filteredTools.push(tool);
}
}
return filteredTools;
}
private async checkResourceAccess(uri: string, user: any): Promise<boolean> {
return this.authProvider.checkResourcePermission(user, uri);
}
private async readResource(uri: string): Promise<any> {
// 实现资源读取逻辑
return {};
}
private requireAdminRole(user: any): void {
if (!user.roles.includes('admin')) {
throw new Error("Admin role required");
}
}
private generateHealthReport(): any {
return {
status: "healthy",
timestamp: new Date(),
components: {
authentication: this.authProvider.getStatus(),
auditing: this.auditLogger.getStatus(),
metrics: this.metricsCollector.getStatus(),
compliance: this.complianceManager.getStatus()
}
};
}
async start(): Promise<void> {
// 启动所有组件
await this.authProvider.initialize();
await this.auditLogger.initialize();
await this.metricsCollector.initialize();
await this.complianceManager.initialize();
// 启动服务器
const transport = new StdioServerTransport();
await this.server.connect(transport);
console.log("Enterprise MCP Server started");
}
}
// 企业认证提供者
class EnterpriseAuthProvider {
private config: EnterpriseConfig['authentication'];
constructor(config: EnterpriseConfig['authentication']) {
this.config = config;
}
async initialize(): Promise<void> {
// 初始化认证提供者
}
async authenticate(request: any): Promise<{ success: boolean; user?: any }> {
// 实现企业认证逻辑
return { success: true, user: { id: "user1", roles: ["user"] } };
}
async authorize(user: any, method: string, params: any): Promise<boolean> {
// 实现授权检查
return true;
}
async checkToolPermission(user: any, toolName: string): Promise<boolean> {
// 检查工具权限
return true;
}
async checkResourcePermission(user: any, resourceUri: string): Promise<boolean> {
// 检查资源权限
return true;
}
getStatus(): any {
return { status: "operational" };
}
}
// 企业审计日志
class EnterpriseAuditLogger {
private config: EnterpriseConfig['compliance'];
constructor(config: EnterpriseConfig['compliance']) {
this.config = config;
}
async initialize(): Promise<void> {
// 初始化审计日志
}
logSuccessfulOperation(user: any, method: string, params: any, duration: number): void {
// 记录成功操作
}
logFailedOperation(user: any, method: string, params: any, error: string, duration: number): void {
// 记录失败操作
}
logUnauthorizedAccess(user: any, method: string, params: any): void {
// 记录未授权访问
}
async getAuditLogs(params: any): Promise<any[]> {
// 获取审计日志
return [];
}
getStatus(): any {
return { status: "operational" };
}
}
// 企业指标收集器
class EnterpriseMetricsCollector {
private config: EnterpriseConfig['monitoring'];
constructor(config: EnterpriseConfig['monitoring']) {
this.config = config;
}
async initialize(): Promise<void> {
// 初始化指标收集
}
recordRequest(method: string): void {
// 记录请求指标
}
recordSuccess(method: string, duration: number): void {
// 记录成功指标
}
recordError(method: string, duration: number): void {
// 记录错误指标
}
getMetrics(): any {
// 获取指标数据
return {};
}
getStatus(): any {
return { status: "operational" };
}
}
// 合规管理器
class ComplianceManager {
private config: EnterpriseConfig['compliance'];
constructor(config: EnterpriseConfig['compliance']) {
this.config = config;
}
async initialize(): Promise<void> {
// 初始化合规管理
}
async sanitizeData(data: any, user: any): Promise<any> {
// 实现数据脱敏
return data;
}
getStatus(): any {
return { status: "operational" };
}
}
interface AuthorizationPolicy {
name: string;
rules: AuthorizationRule[];
}
interface AuthorizationRule {
resource: string;
actions: string[];
conditions: string[];
}6. 最佳实践总结
6.1 高级特性使用指南
// 高级特性使用最佳实践
class AdvancedFeatureGuidelines {
static readonly GUIDELINES = {
PROTOCOL_EXTENSIONS: {
principles: [
"Extension should be backward compatible",
"Clear versioning and deprecation policy",
"Comprehensive documentation and examples",
"Thorough testing across different clients"
],
antipatterns: [
"Breaking existing functionality",
"Overly complex extension interfaces",
"Poor error handling in extensions",
"Lack of proper validation"
]
},
PLUGIN_DEVELOPMENT: {
principles: [
"Single responsibility per plugin",
"Clean dependency management",
"Proper lifecycle management",
"Configuration externalization"
],
antipatterns: [
"Tight coupling between plugins",
"Blocking operations in lifecycle methods",
"Hardcoded configuration values",
"Missing error boundaries"
]
},
MULTI_LANGUAGE_SUPPORT: {
principles: [
"Consistent protocol implementation",
"Proper error propagation",
"Efficient data serialization",
"Resource cleanup"
],
antipatterns: [
"Language-specific protocol deviations",
"Blocking I/O in bridge processes",
"Memory leaks in long-running bridges",
"Inconsistent error formats"
]
},
AI_FRAMEWORK_INTEGRATION: {
principles: [
"Seamless tool integration",
"Proper context management",
"Efficient resource utilization",
"Clear documentation"
],
antipatterns: [
"Ignoring framework conventions",
"Inefficient data conversion",
"Poor error handling integration",
"Missing framework-specific features"
]
},
ENTERPRISE_DEPLOYMENT: {
principles: [
"Security by design",
"Comprehensive monitoring",
"Scalable architecture",
"Compliance adherence"
],
antipatterns: [
"Security as an afterthought",
"Insufficient logging and monitoring",
"Single points of failure",
"Ignoring regulatory requirements"
]
}
};
static validateImplementation(feature: string, implementation: any): ValidationResult {
const guidelines = this.GUIDELINES[feature as keyof typeof this.GUIDELINES];
if (!guidelines) {
throw new Error(`Unknown feature: ${feature}`);
}
const issues: string[] = [];
const recommendations: string[] = [];
// 检查原则遵循情况
for (const principle of guidelines.principles) {
const compliance = this.checkPrincipleCompliance(implementation, principle);
if (!compliance.compliant) {
issues.push(`Principle violation: ${principle}`);
recommendations.push(compliance.recommendation);
}
}
// 检查反模式
for (const antipattern of guidelines.antipatterns) {
const detected = this.checkAntipattern(implementation, antipattern);
if (detected.found) {
issues.push(`Antipattern detected: ${antipattern}`);
recommendations.push(detected.fix);
}
}
return {
feature,
compliant: issues.length === 0,
issues,
recommendations,
score: Math.max(0, 100 - issues.length * 10)
};
}
private static checkPrincipleCompliance(implementation: any, principle: string): { compliant: boolean; recommendation: string } {
// 简化实现 - 实际应该根据具体原则进行检查
return {
compliant: Math.random() > 0.3,
recommendation: `Ensure ${principle.toLowerCase()} is properly implemented`
};
}
private static checkAntipattern(implementation: any, antipattern: string): { found: boolean; fix: string } {
// 简化实现 - 实际应该根据具体反模式进行检查
return {
found: Math.random() > 0.7,
fix: `Avoid ${antipattern.toLowerCase()} by following best practices`
};
}
}
interface ValidationResult {
feature: string;
compliant: boolean;
issues: string[];
recommendations: string[];
score: number;
}小结
通过本章学习，我们深入探索了MCP的高级特性和扩展开发：
- 协议扩展机制 - 学习了如何扩展MCP协议，实现流式处理等高级功能
- 插件系统架构 - 掌握了完整的插件系统设计和实现
- 多语言支持 - 了解了如何实现跨语言的MCP Server桥接
- AI框架集成 - 学习了与LangChain、LlamaIndex等框架的集成方法
- 企业级应用实践 - 探索了企业环境中的安全、合规和监控要求
这些高级特性和扩展能力使MCP能够适应更复杂的应用场景和企业需求，为构建下一代AI应用提供了强大的基础设施支持。
至此，我们完成了MCP Server开发的完整学习旅程，从基础概念到高级特性，从实战项目到企业应用，涵盖了MCP开发的各个方面。希望这套完整的学习资料能够帮助你成为MCP开发专家！