| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package grpc |
| |
| import ( |
| "reflect" |
| ) |
| |
| import ( |
| "github.com/grpc-ecosystem/grpc-opentracing/go/otgrpc" |
| "github.com/opentracing/opentracing-go" |
| "google.golang.org/grpc" |
| ) |
| |
| import ( |
| "github.com/apache/dubbo-go/common" |
| "github.com/apache/dubbo-go/common/constant" |
| "github.com/apache/dubbo-go/config" |
| ) |
| |
| // Client ... |
| type Client struct { |
| *grpc.ClientConn |
| invoker reflect.Value |
| } |
| |
| // NewClient ... |
| func NewClient(url common.URL) *Client { |
| // if global trace instance was set , it means trace function enabled. If not , will return Nooptracer |
| tracer := opentracing.GlobalTracer() |
| conn, err := grpc.Dial(url.Location, grpc.WithInsecure(), grpc.WithBlock(), |
| grpc.WithUnaryInterceptor( |
| otgrpc.OpenTracingClientInterceptor(tracer, otgrpc.LogPayloads()))) |
| if err != nil { |
| panic(err) |
| } |
| |
| key := url.GetParam(constant.BEAN_NAME_KEY, "") |
| impl := config.GetConsumerService(key) |
| invoker := getInvoker(impl, conn) |
| |
| return &Client{ |
| ClientConn: conn, |
| invoker: reflect.ValueOf(invoker), |
| } |
| } |
| |
| func getInvoker(impl interface{}, conn *grpc.ClientConn) interface{} { |
| in := []reflect.Value{} |
| in = append(in, reflect.ValueOf(conn)) |
| method := reflect.ValueOf(impl).MethodByName("GetDubboStub") |
| res := method.Call(in) |
| return res[0].Interface() |
| } |