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datausage.go
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/
datausage.go
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package magmasc
import (
"encoding/json"
"github.com/0chain/gosdk/core/util"
"github.com/0chain/gosdk/zmagmacore/errors"
)
type (
// DataUsage represents session data sage implementation.
DataUsage struct {
DownloadBytes uint64 `json:"download_bytes"`
UploadBytes uint64 `json:"upload_bytes"`
SessionID string `json:"session_id"`
SessionTime uint32 `json:"session_time"`
}
)
var (
// Make sure DataUsage implements Serializable interface.
_ util.Serializable = (*DataUsage)(nil)
)
// Decode implements util.Serializable interface.
func (m *DataUsage) Decode(blob []byte) error {
var dataUsage DataUsage
if err := json.Unmarshal(blob, &dataUsage); err != nil {
return errDecodeData.Wrap(err)
}
if err := dataUsage.Validate(); err != nil {
return err
}
m.DownloadBytes = dataUsage.DownloadBytes
m.UploadBytes = dataUsage.UploadBytes
m.SessionID = dataUsage.SessionID
m.SessionTime = dataUsage.SessionTime
return nil
}
// Encode implements util.Serializable interface.
func (m *DataUsage) Encode() []byte {
blob, _ := json.Marshal(m)
return blob
}
// Validate checks DataUsage for correctness.
func (m *DataUsage) Validate() (err error) {
switch { // is invalid
case m.SessionID == "":
err = errors.New(errCodeBadRequest, "session id is required")
default: // is valid
return nil
}
return errInvalidDataUsage.Wrap(err)
}