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json.go
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json.go
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// Copyright 2020 The vine 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 json
import (
"io"
"github.com/gogo/protobuf/proto"
json "github.com/json-iterator/go"
"github.com/lack-io/vine/service/codec"
mjsonpb "github.com/lack-io/vine/util/jsonpb"
)
type Codec struct {
Conn io.ReadWriteCloser
Encoder *json.Encoder
Decoder *json.Decoder
}
func (c *Codec) ReadHeader(m *codec.Message, t codec.MessageType) error {
return nil
}
func (c *Codec) ReadBody(b interface{}) error {
if b == nil {
return nil
}
if pb, ok := b.(proto.Message); ok {
return mjsonpb.UnmarshalNext(c.Decoder, pb)
}
return c.Decoder.Decode(b)
}
func (c *Codec) Write(m *codec.Message, b interface{}) error {
if b == nil {
return nil
}
return c.Encoder.Encode(b)
}
func (c *Codec) Close() error {
return c.Conn.Close()
}
func (c *Codec) String() string {
return "json"
}
func NewCodec(c io.ReadWriteCloser) codec.Codec {
return &Codec{
Conn: c,
Decoder: json.NewDecoder(c),
Encoder: json.NewEncoder(c),
}
}