aparhiz - phase 2

internal/server/grpc.go

@@ -2,11 +2,11 @@ package server
 
 import (
 	"context"
-
 	"github.com/arcana261/ubroker/pkg/ubroker"
 	"github.com/golang/protobuf/ptypes/empty"
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
+	"io"
 )
 
 type grpcServicer struct {
@@ -18,19 +18,61 @@ func NewGRPC(broker ubroker.Broker) ubroker.BrokerServer {
 		broker: broker,
 	}
 }
-
 func (s *grpcServicer) Fetch(stream ubroker.Broker_FetchServer) error {
-	return status.Error(codes.Unimplemented, "not implemented")
-}
+	//return status.Error(codes.Unimplemented, "not implemented")
+	deliveryChannel, err := s.broker.Delivery(stream.Context())
+	if err != nil {
+		return Error(err)
+	}
 
+	for {
+		if _, err := stream.Recv(); err == io.EOF {
+			return nil
+		}
+		if err != nil {
+			return Error(err)
+		}
+		if msg := <-deliveryChannel; msg == nil {
+			return status.Error(codes.Unavailable, "service is unavailable")
+		} else {
+			err = stream.Send(msg)
+			if err != nil {
+				return Error(err)
+			}
+		}
+	}
+}
 func (s *grpcServicer) Acknowledge(ctx context.Context, request *ubroker.AcknowledgeRequest) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	//return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.Acknowledge(ctx, request.Id)
+	if err != nil {
+		return &empty.Empty{}, Error(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
 }
-
 func (s *grpcServicer) ReQueue(ctx context.Context, request *ubroker.ReQueueRequest) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	//return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.ReQueue(ctx, request.Id)
+	if err != nil {
+		return &empty.Empty{}, Error(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
 }
-
 func (s *grpcServicer) Publish(ctx context.Context, request *ubroker.Message) (*empty.Empty, error) {
-	return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	//return &empty.Empty{}, status.Error(codes.Unimplemented, "not implemented")
+	err := s.broker.Publish(ctx, request)
+	if err != nil {
+		return &empty.Empty{}, Error(err)
+	}
+	return &empty.Empty{}, status.Error(codes.OK, "OK")
+}
+
+func Error(err error) error {
+	if err == ubroker.ErrClosed {
+		return status.Error(codes.Unavailable, "service is unavailable")
+	}
+	if err == ubroker.ErrInvalidID {
+		return status.Error(codes.InvalidArgument, "your id is invalid")
+	}
+	return nil
 }