forked from TrueCloudLab/distribution
58 lines
1.5 KiB
Go
58 lines
1.5 KiB
Go
/*
|
|
*
|
|
* Copyright 2018 gRPC authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
// Package proto defines the protobuf codec. Importing this package will
|
|
// register the codec.
|
|
package proto
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/golang/protobuf/proto"
|
|
"google.golang.org/grpc/encoding"
|
|
)
|
|
|
|
// Name is the name registered for the proto compressor.
|
|
const Name = "proto"
|
|
|
|
func init() {
|
|
encoding.RegisterCodec(codec{})
|
|
}
|
|
|
|
// codec is a Codec implementation with protobuf. It is the default codec for gRPC.
|
|
type codec struct{}
|
|
|
|
func (codec) Marshal(v interface{}) ([]byte, error) {
|
|
vv, ok := v.(proto.Message)
|
|
if !ok {
|
|
return nil, fmt.Errorf("failed to marshal, message is %T, want proto.Message", v)
|
|
}
|
|
return proto.Marshal(vv)
|
|
}
|
|
|
|
func (codec) Unmarshal(data []byte, v interface{}) error {
|
|
vv, ok := v.(proto.Message)
|
|
if !ok {
|
|
return fmt.Errorf("failed to unmarshal, message is %T, want proto.Message", v)
|
|
}
|
|
return proto.Unmarshal(data, vv)
|
|
}
|
|
|
|
func (codec) Name() string {
|
|
return Name
|
|
}
|