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package kv
import (
"unsafe"
"github.com/spiral/errors"
"github.com/spiral/roadrunner/v2/plugins/kv/payload/generated"
"github.com/spiral/roadrunner/v2/plugins/logger"
)
// Wrapper for the plugin
type rpc struct {
// all available storages
storages map[string]Storage
// svc is a plugin implementing Storage interface
srv *Plugin
// Logger
log logger.Logger
}
// Has accept []byte flatbuffers payload with Storage and Item
func (r *rpc) Has(in []byte, res *map[string]bool) error {
const op = errors.Op("rpc_has")
dataRoot := generated.GetRootAsPayload(in, 0)
l := dataRoot.ItemsLength()
keys := make([]string, 0, l)
tmpItem := &generated.Item{}
for i := 0; i < l; i++ {
if !dataRoot.Items(tmpItem, i) {
continue
}
keys = append(keys, strConvert(tmpItem.Key()))
}
if st, ok := r.storages[strConvert(dataRoot.Storage())]; ok {
ret, err := st.Has(keys...)
if err != nil {
return err
}
// update the value in the pointer
// save the result
*res = ret
return nil
}
return errors.E(op, errors.Errorf("no such storage: %s", dataRoot.Storage()))
}
//Set accept []byte flatbuffers payload with Storage and Item
func (r *rpc) Set(in []byte, ok *bool) error {
const op = errors.Op("rpc_set")
dataRoot := generated.GetRootAsPayload(in, 0)
l := dataRoot.ItemsLength()
items := make([]Item, 0, dataRoot.ItemsLength())
tmpItem := &generated.Item{}
for i := 0; i < l; i++ {
if !dataRoot.Items(tmpItem, i) {
continue
}
itc := Item{
Key: string(tmpItem.Key()),
Value: string(tmpItem.Value()),
TTL: string(tmpItem.Timeout()),
}
items = append(items, itc)
}
if st, exists := r.storages[strConvert(dataRoot.Storage())]; exists {
err := st.Set(items...)
if err != nil {
return err
}
// save the result
*ok = true
return nil
}
return errors.E(op, errors.Errorf("no such storage: %s", dataRoot.Storage()))
}
// MGet accept []byte flatbuffers payload with Storage and Item
//func (r *rpc) MGet(in []string, res *map[string]interface{}) error {
// const op = errors.Op("rpc server MGet")
// ret, err := r.svc.MGet(in...)
// if err != nil {
// return errors.E(op, err)
// }
//
// // update return value
// *res = ret
// return nil
//}
//// MExpire accept []byte flatbuffers payload with Storage and Item
//func (r *rpc) MExpire(in []Item, ok *bool) error {
// const op = errors.Op("rpc server MExpire")
//
// err := r.svc.MExpire(in...)
// if err != nil {
// return errors.E(op, err)
// }
//
// *ok = true
// return nil
//}
//
//// TTL accept []byte flatbuffers payload with Storage and Item
//func (r *rpc) TTL(in []string, res *map[string]interface{}) error {
// const op = errors.Op("rpc server TTL")
//
// ret, err := r.svc.TTL(in...)
// if err != nil {
// return errors.E(op, err)
// }
//
// *res = ret
// return nil
//}
//
//// Delete accept []byte flatbuffers payload with Storage and Item
//func (r *rpc) Delete(in []string, ok *bool) error {
// const op = errors.Op("rpc server Delete")
// err := r.svc.Delete(in...)
// if err != nil {
// return errors.E(op, err)
// }
// *ok = true
// return nil
//}
//
//// Close closes the storage connection
//func (r *rpc) Close(storage string, ok *bool) error {
// const op = errors.Op("rpc server Close")
// err := r.svc.Close()
// if err != nil {
// return errors.E(op, err)
// }
// *ok = true
//
// return nil
//}
func strConvert(s []byte) string {
return *(*string)(unsafe.Pointer(&s))
}
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