Moving to ubuntu 18 and fixing UT's
[ric-plt/rtmgr.git] / pkg / rpe / rpe.go
index 5dd8f4d..8f86b4d 100644 (file)
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.
+
+
+   This source code is part of the near-RT RIC (RAN Intelligent Controller)
+   platform project (RICP).
+
 ==================================================================================
 */
 /*
@@ -26,20 +31,16 @@ package rpe
 
 import (
        "errors"
+       "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
        "routing-manager/pkg/rtmgr"
+       "routing-manager/pkg/sbi"
+       "runtime"
        "strconv"
 )
 
 var (
-       SupportedRpes = []*RpeEngineConfig{
-               &RpeEngineConfig{
-                       Name:        "rmrpub",
-                       Version:     "pubsub",
-                       Protocol:    "rmruta",
-                       Instance:    NewRmrPub(),
-                       IsAvailable: true,
-               },
-               &RpeEngineConfig{
+       SupportedRpes = []*EngineConfig{
+               {
                        Name:        "rmrpush",
                        Version:     "pubsush",
                        Protocol:    "rmruta",
@@ -49,7 +50,7 @@ var (
        }
 )
 
-func GetRpe(rpeName string) (RpeEngine, error) {
+func GetRpe(rpeName string) (Engine, error) {
        for _, rpe := range SupportedRpes {
                if rpe.Name == rpeName && rpe.IsAvailable {
                        return rpe.Instance, nil
@@ -61,173 +62,271 @@ func GetRpe(rpeName string) (RpeEngine, error) {
 type Rpe struct {
 }
 
-/*
-Gets the raw xApp list and generates the list of sender endpoints and receiver endpoint groups
-Returns the Tx EndpointList map where the key is the messge type and also returns the nested map of Rx EndpointList's map where keys are message type and xapp type
-Endpoint object's message type already transcoded to integer id
-*/
-
-func (r *Rpe) getRouteRxTxLists(eps rtmgr.Endpoints) (*map[string]rtmgr.EndpointList, *map[string]map[string]rtmgr.EndpointList) {
-       txlist := make(map[string]rtmgr.EndpointList)
-       rxgroups := make(map[string]map[string]rtmgr.EndpointList)
-       for _, ep := range eps {
-               for _, message := range ep.RxMessages {
-                       messageid := rtmgr.MESSAGETYPES[message]
-                       if _, ok := rxgroups[messageid]; !ok {
-                               rxgroups[messageid] = make(map[string]rtmgr.EndpointList)
-                       }
-                       rxgroups[messageid][ep.XAppType] = append(rxgroups[messageid][ep.XAppType], (*ep))
-               }
-               for _, message := range ep.TxMessages {
-                       messageid := rtmgr.MESSAGETYPES[message]
-                       txlist[messageid] = append(txlist[messageid], (*ep))
+func getEndpointByName(eps *rtmgr.Endpoints, name string) *rtmgr.Endpoint {
+       for _, ep := range *eps {
+               if ep.Name == name {
+                       xapp.Logger.Debug("name: %s", ep.Name)
+                       xapp.Logger.Debug("ep: %v", ep)
+                       return ep
                }
        }
-       return &txlist, &rxgroups
+       return nil
 }
 
-/*
-Gets the raw xapp list and creates a route table for
-Returns the array of route table entries
-*/
-func (r *Rpe) getRouteTable(eps rtmgr.Endpoints) *rtmgr.RouteTable {
-       tx, rx := r.getRouteRxTxLists(eps)
-       var rt rtmgr.RouteTable
-       for _, messagetype := range rtmgr.MESSAGETYPES {
-               /*if _, ok := (*tx)[messagetype]; !ok {
-                       continue
-               }
-               if _, ok := (*rx)[messagetype]; !ok {
-                       continue
-               }*/
-               txList, ok := (*tx)[messagetype]
-               if !ok {
-                       txList = rtmgr.EndpointList{}
-               }
-               var rxgroups []rtmgr.EndpointList
-               for _, endpointlist := range (*rx)[messagetype] {
-                       rxgroups = append(rxgroups, endpointlist)
-               }
-               if len(txList) > 0 || len(rxgroups) > 0 {
-                       rte := rtmgr.RouteTableEntry{
-                               messagetype,
-                               txList,
-                               rxgroups,
-                               -1,
-                       }
-                       rt = append(rt, rte)
+func getEndpointListByName(eps *rtmgr.Endpoints, name string) []rtmgr.Endpoint {
+       var eplist []rtmgr.Endpoint
+
+       for _, ep := range *eps {
+               if ep.Name == name {
+                       xapp.Logger.Debug("name: %s", ep.Name)
+                       xapp.Logger.Debug("ep: %v", ep)
+                       eplist = append(eplist, *ep)
                }
        }
-       r.addStaticRoutes(eps, &rt)
-       r.addSubscriptionRoutes(eps, &rt, &rtmgr.Subs)
-       return &rt
+       return eplist
 }
 
-/*
-Adds specific static routes to the route table
-which cannot be calculated with endpoint tx/rx message types.
-*/
-func (r *Rpe) addStaticRoutes(eps rtmgr.Endpoints, rt *rtmgr.RouteTable) {
-       var uemanep, submanep *rtmgr.Endpoint
-       for _, ep := range eps {
-               if ep.Name == "UEMAN" {
-                       uemanep = ep
-               }
-               if ep.Name == "SUBMAN" {
-                       submanep = ep
+func getEndpointByUuid(uuid string) *rtmgr.Endpoint {
+       endPoints := rtmgr.Eps
+       for _, ep := range endPoints {
+               if ep.Uuid == uuid {
+                       xapp.Logger.Debug("name: %s", ep.Uuid)
+                       xapp.Logger.Debug("ep: %v", ep)
+                       return ep
                }
        }
+       return nil
+}
 
-       if uemanep != nil && submanep != nil {
-               txlist := rtmgr.EndpointList{*uemanep}
-               rxlist := []rtmgr.EndpointList{[]rtmgr.Endpoint{*submanep}}
-               rte1 := rtmgr.RouteTableEntry{
-                       rtmgr.MESSAGETYPES["RIC_SUB_REQ"],
-                       txlist,
-                       rxlist,
-                       -1,
-               }
-               rte2 := rtmgr.RouteTableEntry{
-                       rtmgr.MESSAGETYPES["RIC_SUB_DEL_REQ"],
-                       txlist,
-                       rxlist,
-                       -1,
+func (r *Rpe) addRoute(messageType string, tx *rtmgr.Endpoint, rx *rtmgr.Endpoint, routeTable *rtmgr.RouteTable, subId int32, routeType string) {
+       txList := rtmgr.EndpointList{}
+       rxList := []rtmgr.EndpointList{}
+
+       if tx == nil && rx == nil {
+               pc, _, _, ok := runtime.Caller(1)
+               details := runtime.FuncForPC(pc)
+               if ok && details != nil {
+                       xapp.Logger.Error("Route addition skipped: Either TX or RX endpoint not present. Caller function is %s", details.Name())
                }
-               *rt = append(*rt, rte1)
-               *rt = append(*rt, rte2)
        } else {
-               rtmgr.Logger.Warn("Cannot get the static route details of the platform components UEMAN/SUBMAN")
+               if tx != nil {
+                       txList = rtmgr.EndpointList{*tx}
+               }
+               if rx != nil {
+                       rxList = []rtmgr.EndpointList{[]rtmgr.Endpoint{*rx}}
+               }
+               messageId := strconv.Itoa(xapp.RICMessageTypes[messageType])
+               route := rtmgr.RouteTableEntry{
+                       MessageType: messageId,
+                       TxList:      txList,
+                       RxGroups:    rxList,
+                       SubID:       subId,
+                       RouteType:   routeType}
+               *routeTable = append(*routeTable, route)
+               //              xapp.Logger.Debug("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx.Uuid, rx.Uuid, subId)
+               //              xapp.Logger.Trace("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx, rx, subId)
        }
 }
 
-func getEndpointByName(eps *rtmgr.Endpoints, name string) *rtmgr.Endpoint {
-       for _, ep := range *eps {
-               if ep.Name == name {
-                       rtmgr.Logger.Debug("name: %s", ep.Name)
-                       rtmgr.Logger.Debug("ep: %v", ep)
-                       return ep
+func (r *Rpe) addRoute_rx_list(messageType string, tx *rtmgr.Endpoint, rx []rtmgr.Endpoint, routeTable *rtmgr.RouteTable, subId int32, routeType string) {
+       txList := rtmgr.EndpointList{}
+       rxList := []rtmgr.EndpointList{}
+
+       if tx != nil {
+               txList = rtmgr.EndpointList{*tx}
+       }
+
+       if rx != nil {
+               for _, item := range rx {
+                       ep := []rtmgr.Endpoint{item}
+                       rxList = append(rxList, ep)
                }
        }
-       return nil
+
+       messageId := strconv.Itoa(xapp.RICMessageTypes[messageType])
+       route := rtmgr.RouteTableEntry{
+               MessageType: messageId,
+               TxList:      txList,
+               RxGroups:    rxList,
+               SubID:       subId,
+               RouteType:   routeType}
+       *routeTable = append(*routeTable, route)
+       //      xapp.Logger.Debug("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx.Uuid, rx.Uuid, subId)
+       //      xapp.Logger.Trace("Route added: MessageTyp: %v, Tx: %v, Rx: %v, SubId: %v", messageId, tx, rx, subId)
 }
 
-func getEndpointByUuid(eps *rtmgr.Endpoints, uuid string) *rtmgr.Endpoint {
-       for _, ep := range *eps {
-               if ep.Uuid == uuid {
-                       rtmgr.Logger.Debug("name: %s", ep.Uuid)
-                       rtmgr.Logger.Debug("ep: %v", ep)
-                       return ep
+func (r *Rpe) generateXappRoutes(xAppEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
+       xapp.Logger.Debug("rpe.generateXappRoutes invoked")
+       xapp.Logger.Debug("Endpoint: %v, xAppType: %v", xAppEp.Name, xAppEp.XAppType)
+       if xAppEp.XAppType != sbi.PlatformType && (len(xAppEp.TxMessages) > 0 || len(xAppEp.RxMessages) > 0) {
+               /// TODO ---
+               //xApp -> Subscription Manager
+               r.addRoute("RIC_SUB_REQ", xAppEp, subManEp, routeTable, -1, "")
+               r.addRoute("RIC_SUB_DEL_REQ", xAppEp, subManEp, routeTable, -1, "")
+               //xApp -> E2 Termination
+               //              r.addRoute("RIC_CONTROL_REQ", xAppEp, e2TermEp, routeTable, -1, "")
+               r.addRoute("RIC_CONTROL_REQ", xAppEp, nil, routeTable, -1, "%meid")
+               //E2 Termination -> xApp
+               ///             r.addRoute("RIC_CONTROL_ACK", e2TermEp, xAppEp, routeTable, -1, "")
+               ///             r.addRoute("RIC_CONTROL_FAILURE", e2TermEp, xAppEp, routeTable, -1, "")
+               r.addRoute("RIC_CONTROL_ACK", nil, xAppEp, routeTable, -1, "")
+               r.addRoute("RIC_CONTROL_FAILURE", nil, xAppEp, routeTable, -1, "")
+       }
+       //xApp->A1Mediator
+       if xAppEp.XAppType != sbi.PlatformType && len(xAppEp.Policies) > 0 {
+               xapp.Logger.Debug("rpe.generateXappRoutes found policies section")
+               for _, policy := range xAppEp.Policies {
+                       r.addRoute("A1_POLICY_REQ", nil, xAppEp, routeTable, policy, "")
                }
        }
-       return nil
+
 }
-func (r *Rpe) addSubscriptionRoutes(eps rtmgr.Endpoints, rt *rtmgr.RouteTable, subs *rtmgr.SubscriptionList) {
-       rtmgr.Logger.Debug("rpe.addSubscriptionRoutes invoked")
-       rtmgr.Logger.Debug("params: %v", eps)
-       var e2termep, submanep, xappEp *rtmgr.Endpoint
-       var xappName string
-       e2termep = getEndpointByName(&eps, "E2TERM")
-       submanep = getEndpointByName(&eps, "SUBMAN")
-       if e2termep != nil && submanep != nil {
-               // looping through the subscription list, add routes one by one
-               for _, sub := range *subs {
-                       // SubMan -> XApp
-                       xappName = sub.Fqdn + ":" + strconv.Itoa(int(sub.Port))
-                       xappEp = getEndpointByUuid(&eps, xappName)
-                       if xappEp == nil {
-                               rtmgr.Logger.Error("XApp not found: %s", xappName)
-                               rtmgr.Logger.Debug("Endpoints: %v", eps)
-                       } else {
-                               txlist := rtmgr.EndpointList{*submanep}
-                               rxlist := []rtmgr.EndpointList{[]rtmgr.Endpoint{*xappEp}}
-                               subManMsgs := []string{"RIC_SUB_RESP", "RIC_SUB_FAILURE", "RIC_SUB_DEL_RESP", "RIC_SUB_DEL_FAILURE"}
-                               for _, entry := range subManMsgs {
-                                       rte := rtmgr.RouteTableEntry{
-                                               rtmgr.MESSAGETYPES[entry],
-                                               txlist,
-                                               rxlist,
-                                               sub.SubID,
-                                       }
-                                       *rt = append(*rt, rte)
-                               }
-                               // E2Term -> XApp
-                               txlist = rtmgr.EndpointList{*e2termep}
-                               rxlist = []rtmgr.EndpointList{[]rtmgr.Endpoint{*xappEp}}
-                               e2apMsgs := []string{"RIC_CONTROL_ACK", "RIC_CONTROL_FAILURE", "RIC_INDICATION"}
-                               for _, entry := range e2apMsgs {
-                                       rte := rtmgr.RouteTableEntry{
-                                               rtmgr.MESSAGETYPES[entry],
-                                               txlist,
-                                               rxlist,
-                                               sub.SubID,
+
+
+func (r *Rpe) generateXappToXappRoutes(RecvxAppEp *rtmgr.Endpoint, endPointList rtmgr.Endpoints, routeTable *rtmgr.RouteTable) {
+       xapp.Logger.Debug("rpe.generateXappToXappRoutes invoked")
+
+       for _, rxmsg := range RecvxAppEp.RxMessages {
+
+               var src_present bool
+               xapp.Logger.Debug("RecvxAppEp.RxMessages Endpoint: %v, xAppType: %v and rxmsg: %v ", RecvxAppEp.Name, RecvxAppEp.XAppType, rxmsg)
+               if (rxmsg != "RIC_SUB_RESP" && rxmsg != "RIC_SUB_FAILURE" && rxmsg != "RIC_SUB_DEL_RESP" && rxmsg != "RIC_SUB_DEL_FAILURE" && rxmsg != "RIC_INDICATION" && rxmsg != "RIC_CONTROL_ACK" && rxmsg != "RIC_CONTROL_FAILURE" && rxmsg != "A1_POLICY_REQ") {
+                       for _, SrcxAppEp := range endPointList {
+                               if SrcxAppEp.XAppType != sbi.PlatformType && (len(SrcxAppEp.TxMessages) > 0) && SrcxAppEp.Name != RecvxAppEp.Name {
+                                       for _, txmsg := range SrcxAppEp.TxMessages {
+                                                       if (rxmsg == txmsg) {
+                                                               r.addRoute(rxmsg, SrcxAppEp, RecvxAppEp, routeTable, -1, "")
+                                                               src_present = true
+                                                               break
+                                                       }
                                        }
-                                       *rt = append(*rt, rte)
                                }
                        }
+                       if src_present == false {
+                               r.addRoute(rxmsg, nil, RecvxAppEp, routeTable, -1, "")
+                       }
                }
-               rtmgr.Logger.Debug("addSubscriptionRoutes eps: %v", eps)
-       } else {
-               rtmgr.Logger.Warn("Subscription route update failure: Cannot get the static route details of the platform components E2TERM/SUBMAN")
+
        }
+}
 
+func (r *Rpe) generateSubscriptionRoutes(selectedxAppEp *rtmgr.Endpoint, subManEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
+       xapp.Logger.Debug("rpe.addSubscriptionRoutes invoked")
+       subscriptionList := &rtmgr.Subs
+       for _, subscription := range *subscriptionList {
+               xapp.Logger.Debug("Subscription: %v", subscription)
+               xAppUuid := subscription.Fqdn + ":" + strconv.Itoa(int(subscription.Port))
+               xapp.Logger.Debug("xApp UUID: %v", xAppUuid)
+               xAppEp := getEndpointByUuid(xAppUuid)
+               if xAppEp.Uuid == selectedxAppEp.Uuid {
+                       xapp.Logger.Debug("xApp UUID is matched for selected xApp.UUID: %v and xApp.Name: %v", selectedxAppEp.Uuid, selectedxAppEp.Name)
+                       /// TODO
+                       //Subscription Manager -> xApp
+                       r.addRoute("RIC_SUB_RESP", subManEp, xAppEp, routeTable, subscription.SubID, "")
+                       r.addRoute("RIC_SUB_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID, "")
+                       r.addRoute("RIC_SUB_DEL_RESP", subManEp, xAppEp, routeTable, subscription.SubID, "")
+                       r.addRoute("RIC_SUB_DEL_FAILURE", subManEp, xAppEp, routeTable, subscription.SubID, "")
+                       //E2 Termination -> xApp
+                       r.addRoute("RIC_INDICATION", nil, xAppEp, routeTable, subscription.SubID, "")
+                       r.addRoute("RIC_CONTROL_ACK", nil, xAppEp, routeTable, subscription.SubID, "")
+                       r.addRoute("RIC_CONTROL_FAILURE", nil, xAppEp, routeTable, subscription.SubID, "")
+               }
+       }
+}
+
+func (r *Rpe) generatePlatformRoutes(e2TermEp []rtmgr.Endpoint, subManEp *rtmgr.Endpoint, e2ManEp *rtmgr.Endpoint, rsmEp *rtmgr.Endpoint, a1mediatorEp *rtmgr.Endpoint, routeTable *rtmgr.RouteTable) {
+       xapp.Logger.Debug("rpe.generatePlatformRoutes invoked")
+       //Platform Routes --- Subscription Routes
+       //Subscription Manager -> E2 Termination
+       for _, routes := range *rtmgr.PrsCfg {
+               var sendEp *rtmgr.Endpoint
+               var Ep *rtmgr.Endpoint
+               switch routes.SenderEndPoint {
+               case "SUBMAN":
+                       sendEp = subManEp
+               case "E2MAN":
+                       sendEp = e2ManEp
+               //case "UEMAN":
+               //      sendEp = ueManEp
+               case "RSM":
+                       sendEp = rsmEp
+               case "A1MEDIATOR":
+                       sendEp = a1mediatorEp
+               }
+               switch routes.EndPoint {
+               case "SUBMAN":
+                       Ep = subManEp
+               case "E2MAN":
+                       Ep = e2ManEp
+               //case "UEMAN":
+               //      Ep = ueManEp
+               case "RSM":
+                       Ep = rsmEp
+               case "A1MEDIATOR":
+                       Ep = a1mediatorEp
+               }
+
+               r.addRoute(routes.MessageType, sendEp, Ep, routeTable, routes.SubscriptionId, routes.Meid)
+       }
+
+       if len(e2TermEp) > 0 {
+               r.addRoute_rx_list("RIC_SCTP_CLEAR_ALL", e2ManEp, e2TermEp, routeTable, -1, "")
+               r.addRoute_rx_list("E2_TERM_KEEP_ALIVE_REQ", e2ManEp, e2TermEp, routeTable, -1, "")
+               r.addRoute_rx_list("RIC_E2_SETUP_RESP", e2ManEp, e2TermEp, routeTable, -1, "")
+               r.addRoute_rx_list("RIC_E2_SETUP_FAILURE", e2ManEp, e2TermEp, routeTable, -1, "")
+       }
+}
+
+func (r *Rpe) generateRouteTable(endPointList rtmgr.Endpoints) *rtmgr.RouteTable {
+       xapp.Logger.Debug("rpe.generateRouteTable invoked")
+       xapp.Logger.Debug("Endpoint List:  %v", endPointList)
+       routeTable := &rtmgr.RouteTable{}
+       /*e2TermEp := getEndpointByName(&endPointList, "E2TERM")
+       if e2TermEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "E2 Termination")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }*/
+       subManEp := getEndpointByName(&endPointList, "SUBMAN")
+       if subManEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "Subscription Manager")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }
+       e2ManEp := getEndpointByName(&endPointList, "E2MAN")
+       if e2ManEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "E2 Manager")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }
+       /*ueManEp := getEndpointByName(&endPointList, "UEMAN")
+       if ueManEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "UE Manger")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }*/
+       rsmEp := getEndpointByName(&endPointList, "RSM")
+       if rsmEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "Resource Status Manager")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }
+       A1MediatorEp := getEndpointByName(&endPointList, "A1MEDIATOR")
+       if A1MediatorEp == nil {
+               xapp.Logger.Error("Platform component not found: %v", "A1Mediator")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }
+
+       e2TermListEp := getEndpointListByName(&endPointList, "E2TERMINST")
+       if len(e2TermListEp) == 0 {
+               xapp.Logger.Error("Platform component not found: %v", "E2 Termination List")
+               xapp.Logger.Debug("Endpoints: %v", endPointList)
+       }
+       r.generatePlatformRoutes(e2TermListEp, subManEp, e2ManEp, rsmEp, A1MediatorEp, routeTable)
+
+       for _, endPoint := range endPointList {
+               xapp.Logger.Debug("Endpoint: %v, xAppType: %v", endPoint.Name, endPoint.XAppType)
+               if endPoint.XAppType != sbi.PlatformType && (len(endPoint.TxMessages) > 0 || len(endPoint.RxMessages) > 0) {
+                       r.generateXappRoutes(endPoint, subManEp, routeTable)
+                       r.generateSubscriptionRoutes(endPoint, subManEp, routeTable)
+                       r.generateXappToXappRoutes(endPoint, endPointList, routeTable)
+
+               }
+       }
+       return routeTable
 }