3
0
corteza/pkg/federation/encoder.go

64 lines
1.3 KiB
Go

package federation
import (
"encoding/json"
"io"
"github.com/cortezaproject/corteza-server/pkg/options"
)
const (
ActivityStreamsStructure EncodingFormat = 0
CortezaInternalStructure EncodingFormat = 1
ActivityStreamsData EncodingFormat = 2
CortezaInternalData EncodingFormat = 3
)
type (
EncodingFormat int
Encoder struct {
w io.Writer
o options.FederationOpt
}
)
func NewEncoder(w io.Writer, o options.FederationOpt) *Encoder {
return &Encoder{w: w, o: o}
}
// Encode the specific format per payload
func (e Encoder) Encode(payload interface{}, t EncodingFormat) error {
var (
ea EncoderAdapter
enc = json.NewEncoder(e.w)
resp interface{}
err error
)
switch t {
case ActivityStreamsStructure:
ea = &EncoderAdapterActivityStreams{}
resp, err = ea.BuildStructure(e.w, e.o, payload)
break
case CortezaInternalStructure:
ea = &EncoderAdapterCortezaInternal{}
resp, err = ea.BuildStructure(e.w, e.o, payload)
break
case ActivityStreamsData:
ea = &EncoderAdapterActivityStreams{}
resp, err = ea.BuildData(e.w, e.o, payload)
break
case CortezaInternalData:
ea = &EncoderAdapterCortezaInternal{}
resp, err = ea.BuildData(e.w, e.o, payload)
break
}
if err != nil {
return err
}
return enc.Encode(resp)
}