86 lines
2.2 KiB
Go
86 lines
2.2 KiB
Go
package json
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import (
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"encoding/json"
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"reflect"
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"git.loafle.net/commons_go/rpc/codec"
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cur "git.loafle.net/commons_go/util/reflect"
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)
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// ----------------------------------------------------------------------------
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// ClientNotificationCodec
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// ----------------------------------------------------------------------------
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// clientRequest represents a JSON-RPC notification sent to a client.
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type clientNotification struct {
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// A String containing the name of the method to be invoked.
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Method string `json:"method"`
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// Object to pass as request parameter to the method.
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Params *json.RawMessage `json:"params,omitempty"`
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}
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// ClientNotificationCodec decodes and encodes a single notification.
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type ClientNotificationCodec struct {
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noti *clientNotification
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err error
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codec codec.Codec
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}
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func (cnc *ClientNotificationCodec) Method() string {
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return cnc.noti.Method
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}
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func (cnc *ClientNotificationCodec) ReadParams(args []interface{}) error {
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if cnc.err == nil && cnc.noti.Params != nil {
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// Note: if scr.request.Params is nil it's not an error, it's an optional member.
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// JSON params structured object. Unmarshal to the args object.
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var values []string
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if err := json.Unmarshal(*cnc.noti.Params, &values); err != nil {
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cnc.err = &Error{
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Code: E_INVALID_REQ,
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Message: err.Error(),
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Data: cnc.noti.Params,
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}
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return cnc.err
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}
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for indexI := 0; indexI < len(args); indexI++ {
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value := values[indexI]
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arg := args[indexI]
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if cur.IsTypeKind(reflect.TypeOf(arg), reflect.String, true) {
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arg = arg.(*string)
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arg = &value
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} else {
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if err := json.Unmarshal([]byte(value), &arg); err != nil {
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cnc.err = &Error{
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Code: E_INVALID_REQ,
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Message: err.Error(),
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Data: cnc.noti.Params,
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}
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return cnc.err
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}
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}
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}
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}
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return cnc.err
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}
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func (cnc *ClientNotificationCodec) Params() ([]string, error) {
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if cnc.err == nil && cnc.noti.Params != nil {
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var results []string
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if err := json.Unmarshal(*cnc.noti.Params, &results); err != nil {
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cnc.err = &Error{
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Code: E_INVALID_REQ,
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Message: err.Error(),
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Data: cnc.noti.Params,
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}
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return nil, cnc.err
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}
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return results, nil
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}
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return nil, cnc.err
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}
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