+/*
+==================================================================================
+ Copyright (c) 2019 AT&T Intellectual Property.
+ Copyright (c) 2019 Nokia
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ 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).
+
+==================================================================================
+*/
+package nbi
+
+import "C"
+
+import (
+ "errors"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
+ "routing-manager/pkg/rpe"
+ "routing-manager/pkg/rtmgr"
+ "routing-manager/pkg/sbi"
+ "routing-manager/pkg/sdl"
+ "strconv"
+ "sync"
+)
+
+func NewControl() Control {
+
+ return Control{make(chan *xapp.RMRParams)}
+}
+
+type Control struct {
+ rcChan chan *xapp.RMRParams
+}
+
+func (c *Control) Run(sbiEngine sbi.Engine, sdlEngine sdl.Engine, rpeEngine rpe.Engine, m *sync.Mutex) {
+ go c.controlLoop(sbiEngine, sdlEngine, rpeEngine, m)
+ xapp.Run(c)
+}
+
+func (c *Control) Consume(rp *xapp.RMRParams) (err error) {
+ c.rcChan <- rp
+ return
+}
+
+func (c *Control) controlLoop(sbiEngine sbi.Engine, sdlEngine sdl.Engine, rpeEngine rpe.Engine, m *sync.Mutex) {
+ for {
+ msg := <-c.rcChan
+ xapp_msg := sbi.RMRParams{msg}
+ switch msg.Mtype {
+ case xapp.RICMessageTypes["RMRRM_REQ_TABLE"]:
+ if rtmgr.Rtmgr_ready == false {
+ xapp.Logger.Info("Update Route Table Request(RMR to RM), message discarded as routing manager is not ready")
+ } else {
+ xapp.Logger.Info("Update Route Table Request(RMR to RM)")
+ go c.handleUpdateToRoutingManagerRequest(msg, sbiEngine, sdlEngine, rpeEngine, m)
+ }
+ case xapp.RICMessageTypes["RMRRM_TABLE_STATE"]:
+ xapp.Logger.Info("state of table to route mgr %s,payload %s", xapp_msg.String(), msg.Payload)
+
+ default:
+ err := errors.New("Message Type " + strconv.Itoa(msg.Mtype) + " is discarded")
+ xapp.Logger.Error("Unknown message type: %v", err)
+ }
+ }
+}
+
+func (c *Control) handleUpdateToRoutingManagerRequest(params *xapp.RMRParams, sbiEngine sbi.Engine, sdlEngine sdl.Engine, rpeEngine rpe.Engine, m *sync.Mutex) {
+
+ msg := sbi.RMRParams{params}
+
+ xapp.Logger.Info("Update Route Table Request, msg.String() : %s", msg.String())
+ xapp.Logger.Info("Update Route Table Request, params.Payload : %s", string(params.Payload))
+
+ m.Lock()
+ data, err := sdlEngine.ReadAll(xapp.Config.GetString("rtfile"))
+ m.Unlock()
+ if err != nil || data == nil {
+ xapp.Logger.Error("Cannot get data from sdl interface due to: " + err.Error())
+ return
+ }
+
+ ep := sbiEngine.CreateEndpoint(string(params.Payload))
+ if ep == nil {
+ xapp.Logger.Error("Update Routing Table Request can't handle due to end point %s is not avail in complete ep list: ", string(params.Payload))
+ return
+ }
+
+ policies := rpeEngine.GeneratePolicies(rtmgr.Eps, data)
+ err = sbiEngine.DistributeToEp(policies, ep)
+ if err != nil {
+ xapp.Logger.Error("Routing table cannot be published due to: " + err.Error())
+ return
+ }
+}