dubbo.apache.org/dubbo-go/v3@v3.1.1/protocol/dubbo3/common_test.go (about)

     1  /*
     2   * Licensed to the Apache Software Foundation (ASF) under one or more
     3   * contributor license agreements.  See the NOTICE file distributed with
     4   * this work for additional information regarding copyright ownership.
     5   * The ASF licenses this file to You under the Apache License, Version 2.0
     6   * (the "License"); you may not use this file except in compliance with
     7   * the License.  You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package dubbo3
    19  
    20  import (
    21  	"context"
    22  	"fmt"
    23  )
    24  
    25  import (
    26  	native_grpc "github.com/dubbogo/grpc-go"
    27  )
    28  
    29  import (
    30  	"dubbo.apache.org/dubbo-go/v3/config"
    31  	"dubbo.apache.org/dubbo-go/v3/protocol/dubbo3/internal"
    32  	"dubbo.apache.org/dubbo-go/v3/protocol/invocation"
    33  )
    34  
    35  // userd dubbo3 biz service
    36  func addService() {
    37  	config.SetProviderService(newGreeterProvider())
    38  }
    39  
    40  type greeterProvider struct {
    41  	internal.UnimplementedGreeterServer
    42  }
    43  
    44  func newGreeterProvider() *greeterProvider {
    45  	return &greeterProvider{}
    46  }
    47  
    48  func (g *greeterProvider) SayHello(ctx context.Context, req *internal.HelloRequest) (reply *internal.HelloReply, err error) {
    49  	fmt.Printf("req: %v", req)
    50  	return &internal.HelloReply{Message: "this is message from reply"}, nil
    51  }
    52  
    53  func dubboGreeterSayHelloHandler(srv interface{}, ctx context.Context,
    54  	dec func(interface{}) error, interceptor native_grpc.UnaryServerInterceptor) (interface{}, error) {
    55  
    56  	in := new(internal.HelloRequest)
    57  	if err := dec(in); err != nil {
    58  		return nil, err
    59  	}
    60  	base := srv.(Dubbo3GrpcService)
    61  
    62  	args := []interface{}{}
    63  	args = append(args, in)
    64  	invo := invocation.NewRPCInvocation("SayHello", args, nil)
    65  
    66  	if interceptor == nil {
    67  		result := base.XXX_GetProxyImpl().Invoke(context.Background(), invo)
    68  		return result.Result(), result.Error()
    69  	}
    70  	info := &native_grpc.UnaryServerInfo{
    71  		Server:     srv,
    72  		FullMethod: "/helloworld.Greeter/SayHello",
    73  	}
    74  	handler := func(context.Context, interface{}) (interface{}, error) {
    75  		result := base.XXX_GetProxyImpl().Invoke(context.Background(), invo)
    76  		return result.Result(), result.Error()
    77  	}
    78  	return interceptor(ctx, in, info, handler)
    79  }