rpc/protocol/json/client_notification.go
crusader b77b975069 ing
2018-03-23 11:28:59 +09:00

72 lines
1.9 KiB
Go

package json
import (
"git.loafle.net/commons_go/rpc/codec"
crp "git.loafle.net/commons_go/rpc/protocol"
cuej "git.loafle.net/commons_go/util/encoding/json"
jsoniter "github.com/json-iterator/go"
)
var json = jsoniter.ConfigCompatibleWithStandardLibrary
// ----------------------------------------------------------------------------
// ClientNotificationCodec
// ----------------------------------------------------------------------------
// clientRequest represents a JSON-RPC notification sent to a client.
type clientNotification struct {
// A String containing the name of the method to be invoked.
Method string `json:"method"`
// Object to pass as request parameter to the method.
Params *json.RawMessage `json:"params,omitempty"`
}
// ClientNotificationCodec decodes and encodes a single notification.
type ClientNotificationCodec struct {
noti *clientNotification
err error
codec codec.Codec
}
func (cnc *ClientNotificationCodec) HasResponse() bool {
return false
}
func (cnc *ClientNotificationCodec) Method() string {
return cnc.noti.Method
}
func (cnc *ClientNotificationCodec) ReadParams(args []interface{}) error {
if cnc.err == nil && cnc.noti.Params != nil {
// Note: if scr.request.Params is nil it's not an error, it's an optional member.
// JSON params structured object. Unmarshal to the args object.
if err := cuej.SetValueWithJSONStringArray(*cnc.noti.Params, args); nil != err {
cnc.err = &Error{
Code: crp.E_INVALID_REQ,
Message: err.Error(),
Data: cnc.noti.Params,
}
return cnc.err
}
return nil
}
return cnc.err
}
func (cnc *ClientNotificationCodec) Params() ([]string, error) {
if cnc.err == nil && cnc.noti.Params != nil {
var values []string
if err := json.Unmarshal(*cnc.noti.Params, &values); err != nil {
cnc.err = &Error{
Code: crp.E_INVALID_REQ,
Message: err.Error(),
Data: cnc.noti.Params,
}
return nil, cnc.err
}
return values, nil
}
return nil, cnc.err
}