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