pkg/sbi/sbi.go

   1 /*
   2 w
   3 ==================================================================================
   4   Copyright (c) 2019 AT&T Intellectual Property.
   5   Copyright (c) 2019 Nokia
   6
   7    Licensed under the Apache License, Version 2.0 (the "License");
   8    you may not use this file except in compliance with the License.
   9    You may obtain a copy of the License at
  10
  11        http://www.apache.org/licenses/LICENSE-2.0
  12
  13    Unless required by applicable law or agreed to in writing, software
  14    distributed under the License is distributed on an "AS IS" BASIS,
  15    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16    See the License for the specific language governing permissions and
  17    limitations under the License.
  18
  19    This source code is part of the near-RT RIC (RAN Intelligent Controller)
  20    platform project (RICP).
  21
  22 ==================================================================================
  23 */
  24 /*
  25   Mnemonic:     sbi.go
  26   Abstract:     Contains SBI (SouthBound Interface) module definitions and generic SBI components
  27   Date:         16 March 2019
  28 */
  29
  30 package sbi
  31
  32 import (
  33         "errors"
  34         //"fmt"
  35         "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
  36         //"net"
  37         "routing-manager/pkg/rtmgr"
  38         "strconv"
  39         "strings"
  40 )
  41
  42 const DefaultRmrPipelineSocketPrefix = "tcp://"
  43 const DefaultRmrPipelineSocketNumber = 4561
  44 const PlatformType = "platform"
  45
  46 var (
  47         SupportedSbis = []*EngineConfig{
  48                 {
  49                         Name:        "rmrpush",
  50                         Version:     "v1",
  51                         Protocol:    "rmrpipeline",
  52                         Instance:    NewRmrPush(),
  53                         IsAvailable: true,
  54                 },
  55         }
  56 )
  57
  58 func GetSbi(sbiName string) (Engine, error) {
  59         for _, sbi := range SupportedSbis {
  60                 if sbi.Name == sbiName && sbi.IsAvailable {
  61                         return sbi.Instance, nil
  62                 }
  63         }
  64         return nil, errors.New("SBI:" + sbiName + " is not supported or still not available")
  65 }
  66
  67 type Sbi struct {
  68 }
  69
  70 func (s *Sbi) pruneEndpointList(sbi Engine) {
  71         xapp.Logger.Debug("pruneEndpointList invoked.")
  72         for _, ep := range rtmgr.Eps {
  73                 if !ep.Keepalive {
  74                         xapp.Logger.Debug("deleting %v", ep)
  75                         sbi.DeleteEndpoint(ep)
  76                         delete(rtmgr.Eps, ep.Uuid)
  77                 } else {
  78                         if rtmgr.Eps[ep.Uuid] != nil {
  79                                 rtmgr.Eps[ep.Uuid].Keepalive = false
  80                         }
  81                 }
  82         }
  83 }
  84
  85 func (s *Sbi) updateEndpoints(rcs *rtmgr.RicComponents, sbi Engine) {
  86         for _, xapps := range (*rcs).XApps {
  87                 for _, instance := range xapps.Instances {
  88                         uuid := instance.Ip + ":" + strconv.Itoa(int(instance.Port))
  89                         if _, ok := rtmgr.Eps[uuid]; ok {
  90                                 rtmgr.Eps[uuid].Keepalive = true
  91                         } else {
  92                                 ep := &rtmgr.Endpoint{
  93                                         Uuid:       uuid,
  94                                         Name:       instance.Name,
  95                                         XAppType:   xapps.Name,
  96                                         Ip:         instance.Ip,
  97                                         Port:       instance.Port,
  98                                         TxMessages: instance.TxMessages,
  99                                         RxMessages: instance.RxMessages,
 100                                         Policies:   instance.Policies,
 101                                         Socket:     nil,
 102                                         IsReady:    false,
 103                                         Keepalive:  true,
 104                                 }
 105                                 if err := sbi.AddEndpoint(ep); err != nil {
 106                                         xapp.Logger.Error("can't create socket for endpoint: " + ep.Name + " due to:" + err.Error())
 107                                         continue
 108                                 }
 109                                 rtmgr.Eps[uuid] = ep
 110                         }
 111                 }
 112         }
 113         s.updatePlatformEndpoints(&((*rcs).Pcs), sbi)
 114         s.updateE2TEndpoints(&((*rcs).E2Ts), sbi)
 115         s.pruneEndpointList(sbi)
 116 }
 117
 118 func (s *Sbi) updatePlatformEndpoints(pcs *rtmgr.PlatformComponents, sbi Engine) {
 119         xapp.Logger.Debug("updatePlatformEndpoints invoked. PCS: %v", *pcs)
 120         for _, pc := range *pcs {
 121                 uuid := pc.Fqdn + ":" + strconv.Itoa(int(pc.Port))
 122                 if _, ok := rtmgr.Eps[uuid]; ok {
 123                         rtmgr.Eps[uuid].Keepalive = true
 124                 } else {
 125                         ep := &rtmgr.Endpoint{
 126                                 Uuid:       uuid,
 127                                 Name:       pc.Name,
 128                                 XAppType:   PlatformType,
 129                                 Ip:         pc.Fqdn,
 130                                 Port:       pc.Port,
 131                                 //TxMessages: rtmgr.PLATFORMMESSAGETYPES[pc.Name]["tx"],
 132                                 //RxMessages: rtmgr.PLATFORMMESSAGETYPES[pc.Name]["rx"],
 133                                 Socket:     nil,
 134                                 IsReady:    false,
 135                                 Keepalive:  true,
 136                         }
 137                         xapp.Logger.Debug("ep created: %v", ep)
 138                         if err := sbi.AddEndpoint(ep); err != nil {
 139                                 xapp.Logger.Error("can't create socket for endpoint: " + ep.Name + " due to:" + err.Error())
 140                                 continue
 141                         }
 142                         rtmgr.Eps[uuid] = ep
 143                 }
 144         }
 145 }
 146
 147 func (s *Sbi) updateE2TEndpoints(E2Ts *map[string]rtmgr.E2TInstance, sbi Engine) {
 148         xapp.Logger.Debug("updateE2TEndpoints invoked. E2T: %v", *E2Ts)
 149         for _, e2t := range *E2Ts {
 150                 uuid := e2t.Fqdn
 151                 stringSlice := strings.Split(e2t.Fqdn, ":")
 152                 ipaddress := stringSlice[0]
 153                 port, _ := strconv.Atoi(stringSlice[1])
 154                 if _, ok := rtmgr.Eps[uuid]; ok {
 155                         rtmgr.Eps[uuid].Keepalive = true
 156                 } else {
 157                         ep := &rtmgr.Endpoint{
 158                                 Uuid:       uuid,
 159                                 Name:       e2t.Name,
 160                                 XAppType:   PlatformType,
 161                                 Ip:         ipaddress,
 162                                 Port:       uint16(port),
 163                                 //TxMessages: rtmgr.PLATFORMMESSAGETYPES[e2t.Name]["tx"],
 164                                 //RxMessages: rtmgr.PLATFORMMESSAGETYPES[e2t.Name]["rx"],
 165                                 Socket:     nil,
 166                                 IsReady:    false,
 167                                 Keepalive:  true,
 168                         }
 169                         xapp.Logger.Debug("ep created: %v", ep)
 170                         if err := sbi.AddEndpoint(ep); err != nil {
 171                                 xapp.Logger.Error("can't create socket for endpoint: " + ep.Name + " due to:" + err.Error())
 172                                 continue
 173                         }
 174                         rtmgr.Eps[uuid] = ep
 175                 }
 176         }
 177 }
 178
 179 func (s *Sbi) createEndpoint(payload string,rmrsrc string, sbi Engine) *rtmgr.Endpoint {
 180         xapp.Logger.Debug("CreateEndPoint %v", payload)
 181 //      stringSlice := strings.Split(payload, " ")
 182 //      uuid := stringSlice[0]
 183 //      xapp.Logger.Debug(">>> uuid %v", stringSlice[0])
 184
 185 /*      if _, ok := rtmgr.Eps[uuid]; ok {
 186                 ep := rtmgr.Eps[uuid]
 187                 return ep
 188         }*/
 189
 190         /* incase the stored Endpoint list is in the form of IP:port*/
 191 /*      stringsubsplit := strings.Split(uuid, ":")
 192         addr, err := net.LookupIP(stringsubsplit[0])
 193         if err == nil {
 194                 convertedUuid := fmt.Sprintf("%s:%s", addr[0], stringsubsplit[1])
 195                 xapp.Logger.Info(" IP:Port received is %s", convertedUuid)
 196                 if _, ok := rtmgr.Eps[convertedUuid]; ok {
 197                         ep := rtmgr.Eps[convertedUuid]
 198                         return ep
 199                 }
 200         }*/
 201
 202         /* Create a new mapping, this case is assumed for multiple process sending RMR request from a container */
 203         srcString := strings.Split(rmrsrc," ")
 204         srcStringSlice := strings.Split(srcString[0],"=")
 205         Whid := int(xapp.Rmr.Openwh(srcStringSlice[1]))
 206
 207         xapp.Logger.Info("Wormhole Id created is %d for EndPoint %s",Whid,srcStringSlice[1])
 208         if Whid > 0 {
 209                 rtmgr.RmrEp[srcStringSlice[1]] = Whid
 210                 xapp.Logger.Info("received %s and mapped to Whid = %d",srcStringSlice[1],Whid)
 211         }
 212
 213         return nil
 214  }