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monitoring_service.go
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/
monitoring_service.go
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package sqsd
import (
"context"
"time"
"github.com/AsynkronIT/protoactor-go/actor"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
)
// MonitoringService provides grpc handler for MonitoringService.
type MonitoringService struct {
UnimplementedMonitoringServiceServer
rootCtx *actor.RootContext
consumer *actor.PID
}
// NewMonitoringService returns new MonitoringService object.
func NewMonitoringService(ctx *actor.RootContext, consumer *actor.PID) *MonitoringService {
return &MonitoringService{
rootCtx: ctx,
consumer: consumer,
}
}
// CurrentWorkings handles CurrentWorkings grpc request using actor system.
func (s *MonitoringService) CurrentWorkings(context.Context, *CurrentWorkingsRequest) (*CurrentWorkingsResponse, error) {
res, err := s.rootCtx.RequestFuture(s.consumer, &CurrentWorkingsMessages{}, -1).Result()
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to fetch: %v", err)
}
return &CurrentWorkingsResponse{Tasks: res.([]*Task)}, nil
}
// WaitUntilAllEnds waits until all worker tasks finishes.
func (s *MonitoringService) WaitUntilAllEnds(timeout time.Duration) error {
ctx, cancel := context.WithTimeout(context.Background(), timeout)
defer cancel()
for {
if err := ctx.Err(); err != nil {
return err
}
resp, err := s.CurrentWorkings(ctx, nil)
if err != nil {
return err
}
if len(resp.Tasks) == 0 {
return nil
}
time.Sleep(time.Second)
}
}