/
ingestor_manager.go
76 lines (65 loc) · 1.49 KB
/
ingestor_manager.go
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package grpcmanager
import (
"context"
"io"
"log"
"plumbing"
"sync/atomic"
"time"
"github.com/cloudfoundry/dropsonde/metricbatcher"
"github.com/cloudfoundry/sonde-go/events"
"github.com/gogo/protobuf/proto"
)
type IngestorManager struct {
sender MessageSender
batcher Batcher
}
type Batcher interface {
BatchCounter(name string) metricbatcher.BatchCounterChainer
}
type MessageSender interface {
Set(*events.Envelope)
}
type IngestorGRPCServer interface {
plumbing.DopplerIngestor_PusherServer
}
func NewIngestor(sender MessageSender, batcher Batcher) *IngestorManager {
return &IngestorManager{
sender: sender,
batcher: batcher,
}
}
func (i *IngestorManager) Pusher(pusher plumbing.DopplerIngestor_PusherServer) error {
var done int64
context := pusher.Context()
go i.monitorContext(context, &done)
for {
if atomic.LoadInt64(&done) > 0 {
return context.Err()
}
envelopeData, err := pusher.Recv()
if err == io.EOF {
break
}
if err != nil {
time.Sleep(10 * time.Millisecond)
continue
}
env := &events.Envelope{}
err = proto.Unmarshal(envelopeData.Payload, env)
if err != nil {
log.Printf("Received bad envelope: %s", err)
continue
}
i.batcher.BatchCounter("listeners.receivedEnvelopes").
SetTag("protocol", "grpc").
SetTag("event_type", env.GetEventType().String()).
Increment()
i.sender.Set(env)
}
return nil
}
func (i *IngestorManager) monitorContext(ctx context.Context, done *int64) {
<-ctx.Done()
atomic.StoreInt64(done, 1)
}