lease_client_adapter.go

Documentation: go.etcd.io/etcd/server/v3/proxy/grpcproxy/adapter

     1  // Copyright 2017 The etcd Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package adapter
    16  
    17  import (
    18  	"context"
    19  
    20  	pb "go.etcd.io/etcd/api/v3/etcdserverpb"
    21  
    22  	"google.golang.org/grpc"
    23  )
    24  
    25  type ls2lc struct {
    26  	leaseServer pb.LeaseServer
    27  }
    28  
    29  func LeaseServerToLeaseClient(ls pb.LeaseServer) pb.LeaseClient {
    30  	return &ls2lc{ls}
    31  }
    32  
    33  func (c *ls2lc) LeaseGrant(ctx context.Context, in *pb.LeaseGrantRequest, opts ...grpc.CallOption) (*pb.LeaseGrantResponse, error) {
    34  	return c.leaseServer.LeaseGrant(ctx, in)
    35  }
    36  
    37  func (c *ls2lc) LeaseRevoke(ctx context.Context, in *pb.LeaseRevokeRequest, opts ...grpc.CallOption) (*pb.LeaseRevokeResponse, error) {
    38  	return c.leaseServer.LeaseRevoke(ctx, in)
    39  }
    40  
    41  func (c *ls2lc) LeaseKeepAlive(ctx context.Context, opts ...grpc.CallOption) (pb.Lease_LeaseKeepAliveClient, error) {
    42  	cs := newPipeStream(ctx, func(ss chanServerStream) error {
    43  		return c.leaseServer.LeaseKeepAlive(&ls2lcServerStream{ss})
    44  	})
    45  	return &ls2lcClientStream{cs}, nil
    46  }
    47  
    48  func (c *ls2lc) LeaseTimeToLive(ctx context.Context, in *pb.LeaseTimeToLiveRequest, opts ...grpc.CallOption) (*pb.LeaseTimeToLiveResponse, error) {
    49  	return c.leaseServer.LeaseTimeToLive(ctx, in)
    50  }
    51  
    52  func (c *ls2lc) LeaseLeases(ctx context.Context, in *pb.LeaseLeasesRequest, opts ...grpc.CallOption) (*pb.LeaseLeasesResponse, error) {
    53  	return c.leaseServer.LeaseLeases(ctx, in)
    54  }
    55  
    56  // ls2lcClientStream implements Lease_LeaseKeepAliveClient
    57  type ls2lcClientStream struct{ chanClientStream }
    58  
    59  // ls2lcServerStream implements Lease_LeaseKeepAliveServer
    60  type ls2lcServerStream struct{ chanServerStream }
    61  
    62  func (s *ls2lcClientStream) Send(rr *pb.LeaseKeepAliveRequest) error {
    63  	return s.SendMsg(rr)
    64  }
    65  func (s *ls2lcClientStream) Recv() (*pb.LeaseKeepAliveResponse, error) {
    66  	var v interface{}
    67  	if err := s.RecvMsg(&v); err != nil {
    68  		return nil, err
    69  	}
    70  	return v.(*pb.LeaseKeepAliveResponse), nil
    71  }
    72  
    73  func (s *ls2lcServerStream) Send(rr *pb.LeaseKeepAliveResponse) error {
    74  	return s.SendMsg(rr)
    75  }
    76  func (s *ls2lcServerStream) Recv() (*pb.LeaseKeepAliveRequest, error) {
    77  	var v interface{}
    78  	if err := s.RecvMsg(&v); err != nil {
    79  		return nil, err
    80  	}
    81  	return v.(*pb.LeaseKeepAliveRequest), nil
    82  }
    83
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