Examples with ProviderProxyInvoker com.alipay.sofa.rpc.server.ProviderProxyInvoker used on opensource projects

Example 1 with ProviderProxyInvoker

use of com.alipay.sofa.rpc.server.ProviderProxyInvoker in project sofa-rpc by sofastack.

the class BoltServerProcessor method handleRequest.

@Override
public void handleRequest(BizContext bizCtx, AsyncContext asyncCtx, SofaRequest request) {
    // RPC内置上下文
    RpcInternalContext context = RpcInternalContext.getContext();
    context.setProviderSide(true);
    String appName = request.getTargetAppName();
    if (appName == null) {
        // 默认全局appName
        appName = (String) RpcRuntimeContext.get(RpcRuntimeContext.KEY_APPNAME);
    }
    // 是否链路异步化中
    boolean isAsyncChain = false;
    try {
        // 这个 try-finally 为了保证Context一定被清理
        // 统计值加1
        processingCount.incrementAndGet();
        // 远程地址
        context.setRemoteAddress(bizCtx.getRemoteHost(), bizCtx.getRemotePort());
        // 远程返回的通道
        context.setAttachment(RpcConstants.HIDDEN_KEY_ASYNC_CONTEXT, asyncCtx);
        InvokeContext boltInvokeCtx = bizCtx.getInvokeContext();
        if (RpcInternalContext.isAttachmentEnable()) {
            if (boltInvokeCtx != null) {
                // rpc线程池等待时间 Long
                putToContextIfNotNull(boltInvokeCtx, InvokeContext.BOLT_PROCESS_WAIT_TIME, context, RpcConstants.INTERNAL_KEY_PROCESS_WAIT_TIME);
            }
        }
        putToContext(boltInvokeCtx);
        if (EventBus.isEnable(ServerReceiveEvent.class)) {
            EventBus.post(new ServerReceiveEvent(request));
        }
        // 开始处理
        // 响应，用于返回
        SofaResponse response = null;
        // 异常，用于记录
        Throwable throwable = null;
        ProviderConfig providerConfig = null;
        String serviceName = request.getTargetServiceUniqueName();
        try {
            // 这个try-catch 保证一定有Response
            invoke: {
                if (!boltServer.isStarted()) {
                    // 服务端已关闭
                    throwable = new SofaRpcException(RpcErrorType.SERVER_CLOSED, LogCodes.getLog(LogCodes.WARN_PROVIDER_STOPPED, SystemInfo.getLocalHost() + ":" + boltServer.serverConfig.getPort()));
                    response = MessageBuilder.buildSofaErrorResponse(throwable.getMessage());
                    break invoke;
                }
                if (bizCtx.isRequestTimeout()) {
                    // 加上丢弃超时的请求的逻辑
                    throwable = clientTimeoutWhenReceiveRequest(appName, serviceName, bizCtx.getRemoteAddress());
                    break invoke;
                }
                // 查找服务
                Invoker invoker = boltServer.findInvoker(serviceName);
                if (invoker == null) {
                    throwable = cannotFoundService(appName, serviceName);
                    response = MessageBuilder.buildSofaErrorResponse(throwable.getMessage());
                    break invoke;
                }
                if (invoker instanceof ProviderProxyInvoker) {
                    providerConfig = ((ProviderProxyInvoker) invoker).getProviderConfig();
                    // 找到服务后，打印服务的appName
                    appName = providerConfig != null ? providerConfig.getAppName() : null;
                }
                // 查找方法
                String methodName = request.getMethodName();
                Method serviceMethod = ReflectCache.getOverloadMethodCache(serviceName, methodName, request.getMethodArgSigs());
                if (serviceMethod == null) {
                    throwable = cannotFoundServiceMethod(appName, methodName, serviceName);
                    response = MessageBuilder.buildSofaErrorResponse(throwable.getMessage());
                    break invoke;
                } else {
                    request.setMethod(serviceMethod);
                }
                // 真正调用
                response = doInvoke(serviceName, invoker, request);
                if (bizCtx.isRequestTimeout()) {
                    // 加上丢弃超时的响应的逻辑
                    throwable = clientTimeoutWhenSendResponse(appName, serviceName, bizCtx.getRemoteAddress());
                    break invoke;
                }
            }
        } catch (Exception e) {
            // 服务端异常，不管是啥异常
            LOGGER.errorWithApp(appName, "Server Processor Error!", e);
            throwable = e;
            response = MessageBuilder.buildSofaErrorResponse(e.getMessage());
        }
        // Response不为空，代表需要返回给客户端
        if (response != null) {
            RpcInvokeContext invokeContext = RpcInvokeContext.peekContext();
            isAsyncChain = CommonUtils.isTrue(invokeContext != null ? (Boolean) invokeContext.remove(RemotingConstants.INVOKE_CTX_IS_ASYNC_CHAIN) : null);
            // 如果是服务端异步代理模式，特殊处理，因为该模式是在业务代码自主异步返回的
            if (!isAsyncChain) {
                // 其它正常请求
                try {
                    // 这个try-catch 保证一定要记录tracer
                    asyncCtx.sendResponse(response);
                } finally {
                    if (EventBus.isEnable(ServerSendEvent.class)) {
                        EventBus.post(new ServerSendEvent(request, response, throwable));
                    }
                }
            }
        }
    } catch (Throwable e) {
        // 可能有返回时的异常
        if (LOGGER.isErrorEnabled(appName)) {
            LOGGER.errorWithApp(appName, e.getMessage(), e);
        }
    } finally {
        processingCount.decrementAndGet();
        if (!isAsyncChain) {
            if (EventBus.isEnable(ServerEndHandleEvent.class)) {
                EventBus.post(new ServerEndHandleEvent());
            }
        }
        RpcInvokeContext.removeContext();
        RpcInternalContext.removeAllContext();
    }
}

Example 2 with ProviderProxyInvoker

use of com.alipay.sofa.rpc.server.ProviderProxyInvoker in project sofa-rpc by sofastack.

the class DefaultProviderBootstrap method doExport.

private void doExport() {
    if (exported) {
        return;
    }
    // 检查参数
    checkParameters();
    String appName = providerConfig.getAppName();
    // key  is the protocol of server,for concurrent safe
    Map<String, Boolean> hasExportedInCurrent = new ConcurrentHashMap<String, Boolean>();
    // 将处理器注册到server
    List<ServerConfig> serverConfigs = providerConfig.getServer();
    for (ServerConfig serverConfig : serverConfigs) {
        String protocol = serverConfig.getProtocol();
        String key = providerConfig.buildKey() + ":" + protocol;
        if (LOGGER.isInfoEnabled(appName)) {
            LOGGER.infoWithApp(appName, "Export provider config : {} with bean id {}", key, providerConfig.getId());
        }
        // 注意同一interface，同一uniqueId，不同server情况
        // 计数器
        AtomicInteger cnt = EXPORTED_KEYS.get(key);
        if (cnt == null) {
            // 没有发布过
            cnt = CommonUtils.putToConcurrentMap(EXPORTED_KEYS, key, new AtomicInteger(0));
        }
        int c = cnt.incrementAndGet();
        hasExportedInCurrent.put(serverConfig.getProtocol(), true);
        int maxProxyCount = providerConfig.getRepeatedExportLimit();
        if (maxProxyCount > 0) {
            if (c > maxProxyCount) {
                decrementCounter(hasExportedInCurrent);
                // 超过最大数量，直接抛出异常
                throw new SofaRpcRuntimeException(LogCodes.getLog(LogCodes.ERROR_DUPLICATE_PROVIDER_CONFIG, key, maxProxyCount));
            } else if (c > 1) {
                if (LOGGER.isInfoEnabled(appName)) {
                    LOGGER.infoWithApp(appName, LogCodes.getLog(LogCodes.WARN_DUPLICATE_PROVIDER_CONFIG, key, c));
                }
            }
        }
    }
    try {
        // 构造请求调用器
        providerProxyInvoker = new ProviderProxyInvoker(providerConfig);
        preProcessProviderTarget(providerConfig, (ProviderProxyInvoker) providerProxyInvoker);
        // 初始化注册中心
        if (providerConfig.isRegister()) {
            List<RegistryConfig> registryConfigs = providerConfig.getRegistry();
            if (CommonUtils.isNotEmpty(registryConfigs)) {
                for (RegistryConfig registryConfig : registryConfigs) {
                    // 提前初始化Registry
                    RegistryFactory.getRegistry(registryConfig);
                }
            }
        }
        // 将处理器注册到server
        for (ServerConfig serverConfig : serverConfigs) {
            try {
                Server server = serverConfig.buildIfAbsent();
                // 注册请求调用器
                server.registerProcessor(providerConfig, providerProxyInvoker);
                if (serverConfig.isAutoStart()) {
                    server.start();
                }
            } catch (SofaRpcRuntimeException e) {
                throw e;
            } catch (Exception e) {
                LOGGER.errorWithApp(appName, LogCodes.getLog(LogCodes.ERROR_REGISTER_PROCESSOR_TO_SERVER, serverConfig.getId()), e);
            }
        }
        // 注册到注册中心
        providerConfig.setConfigListener(new ProviderAttributeListener());
        register();
    } catch (Exception e) {
        decrementCounter(hasExportedInCurrent);
        if (e instanceof SofaRpcRuntimeException) {
            throw e;
        }
        throw new SofaRpcRuntimeException(LogCodes.getLog(LogCodes.ERROR_BUILD_PROVIDER_PROXY), e);
    }
    // 记录一些缓存数据
    RpcRuntimeContext.cacheProviderConfig(this);
    exported = true;
}

Example 3 with ProviderProxyInvoker

use of com.alipay.sofa.rpc.server.ProviderProxyInvoker in project sofa-rpc by sofastack.

the class AbstractHttpServerTask method run.

@Override
public void run() {
    // RPC内置上下文
    RpcInternalContext context = RpcInternalContext.getContext();
    context.setProviderSide(true);
    String appName = request.getTargetAppName();
    if (appName == null) {
        // 默认全局appName
        appName = (String) RpcRuntimeContext.get(RpcRuntimeContext.KEY_APPNAME);
    }
    try {
        // 这个 try-finally 为了保证Context一定被清理
        Channel channel = ctx.channel();
        // 远程地址
        context.setRemoteAddress((InetSocketAddress) channel.remoteAddress());
        // 远程返回的通道
        context.setAttachment(RpcConstants.HIDDEN_KEY_ASYNC_CONTEXT, channel);
        if (EventBus.isEnable(ServerReceiveEvent.class)) {
            EventBus.post(new ServerReceiveEvent(request));
        }
        // 开始处理
        // 响应，用于返回
        SofaResponse response = null;
        // 异常，用于记录
        Throwable throwable = null;
        HttpResponseStatus status = null;
        ProviderConfig providerConfig = null;
        String serviceName = request.getTargetServiceUniqueName();
        Serializer serializer = null;
        if (request.getSerializeType() > 0) {
            serializer = SerializerFactory.getSerializer(request.getSerializeType());
        }
        try {
            // 这个try-catch 保证一定有Response
            invoke: {
                // 查找服务
                Invoker invoker = serverHandler.getInvokerMap().get(serviceName);
                if (invoker == null) {
                    throwable = cannotFoundService(appName, serviceName);
                    response = MessageBuilder.buildSofaErrorResponse(throwable.getMessage());
                    status = HttpResponseStatus.NOT_FOUND;
                    break invoke;
                }
                if (invoker instanceof ProviderProxyInvoker) {
                    providerConfig = ((ProviderProxyInvoker) invoker).getProviderConfig();
                    // 找到服务后，打印服务的appName
                    appName = providerConfig != null ? providerConfig.getAppName() : null;
                }
                // 查找方法
                String methodName = request.getMethodName();
                Method serviceMethod = serverHandler.getMethod(serviceName, methodName);
                if (serviceMethod == null) {
                    throwable = cannotFoundServiceMethod(appName, methodName, serviceName);
                    response = MessageBuilder.buildSofaErrorResponse(throwable.getMessage());
                    status = HttpResponseStatus.NOT_FOUND;
                    break invoke;
                } else {
                    request.setMethod(serviceMethod);
                }
                AbstractByteBuf reqData = request.getData();
                if (reqData != null) {
                    try {
                        Map<String, String> map = new HashMap<String, String>(4);
                        map.put(RemotingConstants.HEAD_TARGET_SERVICE, request.getTargetServiceUniqueName());
                        map.put(RemotingConstants.HEAD_METHOD_NAME, request.getMethodName());
                        map.put(RemotingConstants.HEAD_TARGET_APP, request.getTargetAppName());
                        serializer.decode(reqData, request, map);
                    } catch (Exception e) {
                        LOGGER.errorWithApp(appName, "Server deserialize error, request from " + channel.remoteAddress(), e);
                        response = MessageBuilder.buildSofaErrorResponse("Server deserialize error, " + e.getMessage());
                        break invoke;
                    }
                } else if (request.getMethodArgs() == null) {
                    request.setMethodArgs(CodecUtils.EMPTY_OBJECT_ARRAY);
                }
                // 真正调用
                response = doInvoke(serviceName, invoker, request);
            }
        } catch (Exception e) {
            // 服务端异常，不管是啥异常
            LOGGER.errorWithApp(appName, "Server Processor Error!", e);
            throwable = e;
            response = MessageBuilder.buildSofaErrorResponse(e.getMessage());
            status = HttpResponseStatus.INTERNAL_SERVER_ERROR;
        }
        // Response不为空，代表需要返回给客户端
        if (response != null) {
            response.setSerializeType(request.getSerializeType());
            // 其它正常请求
            try {
                // 这个try-catch 保证一定要记录tracer
                if (response.isError()) {
                    ByteBuf content = ctx.alloc().buffer();
                    content.writeBytes(StringSerializer.encode(response.getErrorMsg()));
                    sendRpcError(status == null ? HttpResponseStatus.INTERNAL_SERVER_ERROR : status, content);
                } else {
                    if (response.getAppResponse() instanceof Throwable) {
                        ByteBuf content = ctx.alloc().buffer();
                        String errorMsg = ExceptionUtils.toString((Throwable) response.getAppResponse());
                        content.writeBytes(StringSerializer.encode(errorMsg));
                        sendAppError(HttpResponseStatus.OK, content);
                    } else {
                        ByteBuf content = ctx.alloc().buffer();
                        if (request.getSerializeType() > 0) {
                            AbstractByteBuf bs = serializer.encode(response, null);
                            content.writeBytes(bs.array());
                        } else {
                            content.writeBytes(StringSerializer.encode(response.getAppResponse().toString()));
                        }
                        sendAppResponse(HttpResponseStatus.OK, content);
                    }
                }
            } finally {
                if (EventBus.isEnable(ServerSendEvent.class)) {
                    EventBus.post(new ServerSendEvent(request, response, throwable));
                }
            }
        }
    } catch (Throwable e) {
        // 可能有返回时的异常
        if (LOGGER.isErrorEnabled(appName)) {
            LOGGER.errorWithApp(appName, e.getMessage(), e);
        }
    } finally {
        serverHandler.getProcessingCount().decrementAndGet();
        if (EventBus.isEnable(ServerEndHandleEvent.class)) {
            EventBus.post(new ServerEndHandleEvent());
        }
        RpcInvokeContext.removeContext();
        RpcInternalContext.removeAllContext();
    }
}