mep/mepserver/mp1/plan_del_one_subscribe.go

   1 /*
   2  * Copyright 2020 Huawei Technologies Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *     http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package mp1
  18
  19 import (
  20         "context"
  21         "net/http"
  22
  23         "github.com/apache/servicecomb-service-center/pkg/log"
  24         "github.com/apache/servicecomb-service-center/server/core/backend"
  25         "github.com/apache/servicecomb-service-center/server/core/proto"
  26         "github.com/apache/servicecomb-service-center/server/plugin/pkg/registry"
  27
  28         "mepserver/mp1/arch/workspace"
  29 )
  30
  31 type DelOneSubscribe struct {
  32         workspace.TaskBase
  33         R             *http.Request       `json:"r,in"`
  34         HttpErrInf    *proto.Response     `json:"httpErrInf,out"`
  35         Ctx           context.Context     `json:"ctx,in"`
  36         W             http.ResponseWriter `json:"w,in"`
  37         AppInstanceId string              `json:"appInstanceId,in"`
  38         SubscribeId   string              `json:"subscribeId,in"`
  39         HttpRsp       interface{}         `json:"httpRsp,out"`
  40 }
  41
  42 func (t *DelOneSubscribe) OnRequest(data string) workspace.TaskCode {
  43
  44         appInstanceId := t.AppInstanceId
  45         subscribeId := t.SubscribeId
  46
  47         opts := []registry.PluginOp{
  48                 registry.OpGet(registry.WithStrKey("/cse-sr/etsi/subscribe/" + appInstanceId + "/" + subscribeId)),
  49         }
  50         resp, errGet := backend.Registry().TxnWithCmp(context.Background(), opts, nil, nil)
  51         if errGet != nil {
  52                 log.Errorf(errGet, "get subscription from etcd failed")
  53                 t.SetFirstErrorCode(OperateDataWithEtcdErr, "get subscription from etch failed")
  54                 return workspace.TaskFinish
  55         }
  56
  57         if len(resp.Kvs) == 0 {
  58                 log.Errorf(errGet, "subscription not exist")
  59                 t.SetFirstErrorCode(SubscriptionNotFound, "subscription not exist")
  60                 return workspace.TaskFinish
  61         }
  62
  63         opts = []registry.PluginOp{
  64                 registry.OpDel(registry.WithStrKey("/cse-sr/etsi/subscribe/" + appInstanceId + "/" + subscribeId)),
  65         }
  66         _, err := backend.Registry().TxnWithCmp(context.Background(), opts, nil, nil)
  67         if err != nil {
  68                 log.Errorf(err, "delete subscription from etcd failed")
  69                 t.SetFirstErrorCode(OperateDataWithEtcdErr, "delete subscription from etch failed")
  70                 return workspace.TaskFinish
  71         }
  72
  73         t.HttpRsp = ""
  74         return workspace.TaskFinish
  75 }