| // 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 ( |
| "context" |
| "fmt" |
| "github.com/apache/incubator-eventmesh/eventmesh-sdk-go/common/seq" |
| "io" |
| "io/ioutil" |
| "net" |
| "net/http" |
| "strings" |
| "sync" |
| "time" |
| |
| "github.com/apache/incubator-eventmesh/eventmesh-sdk-go/common/id" |
| "github.com/apache/incubator-eventmesh/eventmesh-sdk-go/grpc/proto" |
| "github.com/apache/incubator-eventmesh/eventmesh-sdk-go/log" |
| |
| "google.golang.org/grpc" |
| ) |
| |
| // fakeServer used to do the test |
| type fakeServer struct { |
| proto.UnsafeConsumerServiceServer |
| proto.UnimplementedPublisherServiceServer |
| proto.UnimplementedHeartbeatServiceServer |
| idg id.Interface |
| seq seq.Interface |
| closeCtx context.Context |
| } |
| |
| // newFakeServer create new fake grpc server for eventmesh |
| func runFakeServer(ctx context.Context) error { |
| lis, err := net.Listen("tcp", ":8086") |
| if err != nil { |
| return err |
| } |
| f := &fakeServer{ |
| idg: id.NewUUID(), |
| seq: seq.NewAtomicSeq(), |
| closeCtx: ctx, |
| } |
| srv := grpc.NewServer() |
| proto.RegisterConsumerServiceServer(srv, f) |
| proto.RegisterHeartbeatServiceServer(srv, f) |
| proto.RegisterPublisherServiceServer(srv, f) |
| go func() { |
| select { |
| case <-ctx.Done(): |
| srv.GracefulStop() |
| } |
| }() |
| log.Infof("serve fake server on:%v", srv.GetServiceInfo()) |
| if err := srv.Serve(lis); err != nil { |
| log.Warnf("create fake server err:%v", err) |
| return err |
| } |
| log.Infof("stop fake server") |
| return nil |
| } |
| |
| // Subscribe The subscribed event will be delivered by invoking the webhook url in the Subscription |
| func (f *fakeServer) Subscribe(ctx context.Context, msg *proto.Subscription) (*proto.Response, error) { |
| log.Infof("fake-server, receive subcribe request:%v", msg.String()) |
| go func() { |
| // send a fake msg by webhook |
| resp, err := http.Post(msg.Url, "Content-Type:application/json", strings.NewReader("msg from webhook")) |
| if err != nil { |
| log.Errorf("err in create http webhook url:%s, err:%v", msg.Url, err) |
| return |
| } |
| buf, _ := ioutil.ReadAll(resp.Body) |
| log.Infof("send webhook msg success", string(buf)) |
| }() |
| return &proto.Response{ |
| RespCode: "0", |
| RespMsg: "OK", |
| RespTime: time.Now().Format("2006-01-02 15:04:05"), |
| }, nil |
| } |
| |
| // SubscribeStream The subscribed event will be delivered through stream of Message |
| func (f *fakeServer) SubscribeStream(srv proto.ConsumerService_SubscribeStreamServer) error { |
| wg := new(sync.WaitGroup) |
| wg.Add(2) |
| go func() { |
| defer wg.Done() |
| for { |
| sub, err := srv.Recv() |
| if err == io.EOF { |
| log.Infof("return sub as rece io.EOF") |
| break |
| } |
| if err != nil { |
| log.Warnf("return sub as rece err:%v", err) |
| break |
| } |
| log.Infof("rece sub:%s", sub.String()) |
| } |
| }() |
| go func() { |
| defer wg.Done() |
| var index int = 0 |
| for { |
| msg := &proto.SimpleMessage{ |
| Header: &proto.RequestHeader{}, |
| ProducerGroup: "substream-fake-group", |
| Topic: "fake-topic", |
| Content: fmt.Sprintf("%v msg from fake server", index), |
| Ttl: fmt.Sprintf("%v", time.Hour.Seconds()*24), |
| UniqueId: f.idg.Next(), |
| SeqNum: f.seq.Next(), |
| Tag: "substream-fake-tag", |
| Properties: map[string]string{ |
| "from": "fake", |
| "service": "substream", |
| }, |
| } |
| err := srv.Send(msg) |
| if err == io.EOF { |
| log.Infof("return send as rece io.EOF") |
| break |
| } |
| if err != nil { |
| log.Warnf("return send as rece err:%v", err) |
| break |
| } |
| log.Infof("send msg:%s", msg.String()) |
| index++ |
| time.Sleep(time.Second * 5) |
| } |
| }() |
| wg.Wait() |
| log.Infof("close SubscribeStream") |
| return nil |
| } |
| |
| func (f *fakeServer) Unsubscribe(ctx context.Context, msg *proto.Subscription) (*proto.Response, error) { |
| log.Infof("fake-server, receive unsubcribe request:%v", msg.String()) |
| return &proto.Response{ |
| RespCode: "OK", |
| RespMsg: "OK", |
| RespTime: time.Now().Format("2006-01-02 15:04:05"), |
| }, nil |
| } |
| |
| func (f *fakeServer) Heartbeat(ctx context.Context, msg *proto.Heartbeat) (*proto.Response, error) { |
| log.Infof("fake-server, receive heartbeat request:%v", msg.String()) |
| return &proto.Response{ |
| RespCode: "OK", |
| RespMsg: "OK", |
| RespTime: time.Now().Format("2006-01-02 15:04:05"), |
| }, nil |
| } |
| |
| // Publish Async event publish |
| func (f *fakeServer) Publish(ctx context.Context, msg *proto.SimpleMessage) (*proto.Response, error) { |
| log.Infof("fake-server, receive publish request:%v", msg.String()) |
| return &proto.Response{ |
| RespCode: "OK", |
| RespMsg: "OK", |
| RespTime: time.Now().Format("2006-01-02 15:04:05"), |
| }, nil |
| } |
| |
| // RequestReply Sync event publish |
| func (f *fakeServer) RequestReply(ctx context.Context, rece *proto.SimpleMessage) (*proto.SimpleMessage, error) { |
| log.Infof("receive request reply topic:%s, content:%s", rece.Topic, rece.Content) |
| return &proto.SimpleMessage{ |
| Header: rece.Header, |
| ProducerGroup: "fake-mock-group", |
| Topic: rece.Topic, |
| Content: "fake response for request reply" + rece.Content, |
| Ttl: fmt.Sprintf("%v", time.Hour.Seconds()*24), |
| UniqueId: f.idg.Next(), |
| SeqNum: f.seq.Next(), |
| Tag: "fake-tag", |
| Properties: map[string]string{ |
| "from": "fake", |
| "service": "RequestReply", |
| }, |
| }, nil |
| } |
| |
| // BatchPublish Async batch event publish |
| func (f *fakeServer) BatchPublish(ctx context.Context, rece *proto.BatchMessage) (*proto.Response, error) { |
| log.Infof("receive batch publish topic:%s, content len:%s", rece.Topic, len(rece.MessageItem)) |
| return &proto.Response{ |
| RespCode: "OK", |
| RespMsg: "Response for batchpublish", |
| RespTime: time.Now().Format("2006-01-02 15:04:05"), |
| }, nil |
| } |