gitee.com/liuxuezhan/go-micro-v1.18.0@v1.0.0/codec/proto/proto.go (about)

     1  // Package proto provides a proto codec
     2  package proto
     3  
     4  import (
     5  	"io"
     6  	"io/ioutil"
     7  
     8  	"github.com/golang/protobuf/proto"
     9  	"gitee.com/liuxuezhan/go-micro-v1.18.0/codec"
    10  )
    11  
    12  type Codec struct {
    13  	Conn io.ReadWriteCloser
    14  }
    15  
    16  func (c *Codec) ReadHeader(m *codec.Message, t codec.MessageType) error {
    17  	return nil
    18  }
    19  
    20  func (c *Codec) ReadBody(b interface{}) error {
    21  	if b == nil {
    22  		return nil
    23  	}
    24  	buf, err := ioutil.ReadAll(c.Conn)
    25  	if err != nil {
    26  		return err
    27  	}
    28  	return proto.Unmarshal(buf, b.(proto.Message))
    29  }
    30  
    31  func (c *Codec) Write(m *codec.Message, b interface{}) error {
    32  	p, ok := b.(proto.Message)
    33  	if !ok {
    34  		return nil
    35  	}
    36  	buf, err := proto.Marshal(p)
    37  	if err != nil {
    38  		return err
    39  	}
    40  	_, err = c.Conn.Write(buf)
    41  	return err
    42  }
    43  
    44  func (c *Codec) Close() error {
    45  	return c.Conn.Close()
    46  }
    47  
    48  func (c *Codec) String() string {
    49  	return "proto"
    50  }
    51  
    52  func NewCodec(c io.ReadWriteCloser) codec.Codec {
    53  	return &Codec{
    54  		Conn: c,
    55  	}
    56  }