Examples with Invoker com.alipay.sofa.rpc.invoke.Invoker used on opensource projects

Example 6 with Invoker

use of com.alipay.sofa.rpc.invoke.Invoker 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();
    }
}

Example 7 with Invoker

use of com.alipay.sofa.rpc.invoke.Invoker in project sofa-rpc by sofastack.

the class UniqueIdInvoker method invoke.

@Override
public SofaResponse invoke(SofaRequest request) throws SofaRpcException {
    // find invoker and invoke
    String interfaceName = request.getInterfaceName();
    String uniqueId = this.getUniqueIdFromInvokeContext();
    Invoker invoker = this.findInvoker(interfaceName, uniqueId);
    return invoker.invoke(request);
}