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mockeventserver.go
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/
mockeventserver.go
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/*
Copyright SecureKey Technologies Inc. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package mocks
import (
"fmt"
"net"
"sync"
"github.com/golang/protobuf/proto"
"github.com/hyperledger/fabric-sdk-go/pkg/util/test"
pb "github.com/hyperledger/fabric-sdk-go/third_party/github.com/hyperledger/fabric/protos/peer"
"google.golang.org/grpc"
)
// MockEventServer ...
type MockEventServer struct {
server pb.Events_ChatServer
channel chan *pb.Event
srv *grpc.Server
wg sync.WaitGroup
}
// Start the mock event server
func (m *MockEventServer) Start(address string) string {
if m.srv != nil {
panic("MockEventServer already started")
}
m.srv = grpc.NewServer()
lis, err := net.Listen("tcp", address)
if err != nil {
panic(fmt.Sprintf("starting test server failed %s", err))
}
addr := lis.Addr().String()
test.Logf("Starting MockEventServer [%s]", addr)
pb.RegisterEventsServer(m.srv, m)
m.wg.Add(1)
go func() {
defer m.wg.Done()
if err := m.srv.Serve(lis); err != nil {
test.Logf("StartMockEventServer failed [%s]", err)
}
}()
return addr
}
// Stop the mock event server and wait for completion.
func (m *MockEventServer) Stop() {
if m.srv == nil {
panic("MockEventServer not started")
}
m.srv.Stop()
m.wg.Wait()
m.srv = nil
}
// Chat for event chatting
func (m *MockEventServer) Chat(srv pb.Events_ChatServer) error {
m.server = srv
m.channel = make(chan *pb.Event)
in, err := srv.Recv()
if err != nil {
return err
}
evt := &pb.Event{}
err = proto.Unmarshal(in.EventBytes, evt)
if err != nil {
return fmt.Errorf("error unmarshaling the event bytes in the SignedEvent: %s", err)
}
switch evt.Event.(type) {
case *pb.Event_Register:
if err := srv.Send(&pb.Event{Event: &pb.Event_Register{Register: &pb.Register{}}}); err != nil {
return err
}
}
for {
event := <-m.channel
if err := srv.Send(event); err != nil {
return err
}
}
}
// SendMockEvent used for sending mock events to event server
func (m *MockEventServer) SendMockEvent(event *pb.Event) {
m.channel <- event
}