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generic.go
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/
generic.go
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/*
* Copyright 2021 CloudWeGo 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 generic ...
package generic
import (
"fmt"
"github.com/cloudwego/kitex/pkg/remote"
"github.com/cloudwego/kitex/pkg/remote/codec/thrift"
"github.com/cloudwego/kitex/pkg/serviceinfo"
)
// Generic ...
type Generic interface {
Closer
// PayloadCodec return codec implement
PayloadCodec() remote.PayloadCodec
// PayloadCodecType return the type of codec
PayloadCodecType() serviceinfo.PayloadCodec
// RawThriftBinaryGeneric must be framed
Framed() bool
// GetMethod to get method name if need
GetMethod(req interface{}, method string) (*Method, error)
}
// Method information
type Method struct {
Name string
Oneway bool
}
// BinaryThriftGeneric raw thrift binary Generic
func BinaryThriftGeneric() Generic {
return &binaryThriftGeneric{}
}
// MapThriftGeneric map mapping generic
func MapThriftGeneric(p DescriptorProvider) (Generic, error) {
codec, err := newMapThriftCodec(p, thriftCodec)
if err != nil {
return nil, err
}
return &mapThriftGeneric{
codec: codec,
}, nil
}
// HTTPThriftGeneric http mapping Generic.
// Base64 codec for binary field is disabled by default. You can change this option with SetBinaryWithBase64.
// eg:
// g, err := generic.HTTPThriftGeneric(p)
// SetBinaryWithBase64(g, true)
func HTTPThriftGeneric(p DescriptorProvider) (Generic, error) {
codec, err := newHTTPThriftCodec(p, thriftCodec)
if err != nil {
return nil, err
}
return &httpThriftGeneric{
codec: codec,
}, nil
}
// JSONThriftGeneric json mapping generic.
// Base64 codec for binary field is enabled by default. You can change this option with SetBinaryWithBase64.
// eg:
// g, err := generic.JSONThriftGeneric(p)
// SetBinaryWithBase64(g, false)
func JSONThriftGeneric(p DescriptorProvider) (Generic, error) {
codec, err := newJsonThriftCodec(p, thriftCodec)
if err != nil {
return nil, err
}
return &jsonThriftGeneric{codec: codec}, nil
}
// SetBinaryWithBase64 enable/disable Base64 codec for binary field.
func SetBinaryWithBase64(g Generic, enable bool) error {
switch c := g.(type) {
case *httpThriftGeneric:
if c.codec == nil {
return fmt.Errorf("empty codec for %#v", c)
}
c.codec.binaryWithBase64 = enable
case *jsonThriftGeneric:
if c.codec == nil {
return fmt.Errorf("empty codec for %#v", c)
}
c.codec.binaryWithBase64 = enable
default:
return fmt.Errorf("Base64Binary is unavailable for %#v", g)
}
return nil
}
var thriftCodec = thrift.NewThriftCodec()
type binaryThriftGeneric struct{}
func (g *binaryThriftGeneric) Framed() bool {
return true
}
func (g *binaryThriftGeneric) PayloadCodecType() serviceinfo.PayloadCodec {
return serviceinfo.Thrift
}
func (g *binaryThriftGeneric) PayloadCodec() remote.PayloadCodec {
pc := &binaryThriftCodec{thriftCodec}
return pc
}
func (g *binaryThriftGeneric) GetMethod(req interface{}, method string) (*Method, error) {
return &Method{method, false}, nil
}
func (g *binaryThriftGeneric) Close() error {
return nil
}
type mapThriftGeneric struct {
codec *mapThriftCodec
}
func (g *mapThriftGeneric) Framed() bool {
return false
}
func (g *mapThriftGeneric) PayloadCodecType() serviceinfo.PayloadCodec {
return serviceinfo.Thrift
}
func (g *mapThriftGeneric) PayloadCodec() remote.PayloadCodec {
return g.codec
}
func (g *mapThriftGeneric) GetMethod(req interface{}, method string) (*Method, error) {
return g.codec.getMethod(req, method)
}
func (g *mapThriftGeneric) Close() error {
return g.codec.Close()
}
type jsonThriftGeneric struct {
codec *jsonThriftCodec
}
func (g *jsonThriftGeneric) Framed() bool {
return false
}
func (g *jsonThriftGeneric) PayloadCodecType() serviceinfo.PayloadCodec {
return serviceinfo.Thrift
}
func (g *jsonThriftGeneric) PayloadCodec() remote.PayloadCodec {
return g.codec
}
func (g *jsonThriftGeneric) GetMethod(req interface{}, method string) (*Method, error) {
return g.codec.getMethod(req, method)
}
func (g *jsonThriftGeneric) Close() error {
return g.codec.Close()
}
type httpThriftGeneric struct {
codec *httpThriftCodec
}
func (g *httpThriftGeneric) Framed() bool {
return false
}
func (g *httpThriftGeneric) PayloadCodecType() serviceinfo.PayloadCodec {
return serviceinfo.Thrift
}
func (g *httpThriftGeneric) PayloadCodec() remote.PayloadCodec {
return g.codec
}
func (g *httpThriftGeneric) GetMethod(req interface{}, method string) (*Method, error) {
return g.codec.getMethod(req)
}
func (g *httpThriftGeneric) Close() error {
return g.codec.Close()
}