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producer.go
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producer.go
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/*
Copyright IBM Corp. All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package producer
import (
"fmt"
"io"
"time"
"github.com/mcc-github/blockchain/common/flogging"
"github.com/mcc-github/blockchain/core/comm"
pb "github.com/mcc-github/blockchain/protos/peer"
)
var logger = flogging.MustGetLogger("eventhub_producer")
type EventsServer struct {
eventProcessor *eventProcessor
}
type EventsServerConfig struct {
BufferSize uint
Timeout time.Duration
SendTimeout time.Duration
TimeWindow time.Duration
BindingInspector comm.BindingInspector
}
var globalEventsServer *EventsServer
func NewEventsServer(config *EventsServerConfig) *EventsServer {
if globalEventsServer != nil {
panic("Cannot create multiple event hub servers")
}
eventProcessor := initializeEvents(config)
globalEventsServer := &EventsServer{eventProcessor: eventProcessor}
return globalEventsServer
}
func (e *EventsServer) Chat(stream pb.Events_ChatServer) error {
handler := newHandler(stream, e.eventProcessor)
defer e.eventProcessor.cleanupHandler(handler)
for {
in, err := stream.Recv()
if err == io.EOF {
logger.Debug("Received EOF, ending Chat")
return nil
}
if err != nil {
err := fmt.Errorf("error during Chat, stopping handler: %s", err)
logger.Error(err.Error())
return err
}
err = handler.HandleMessage(in)
if err != nil {
logger.Errorf("Error handling message: %s", err)
return err
}
}
}