package control
-/*
-#include <rmr/RIC_message_types.h>
-#include <rmr/rmr.h>
-
-#cgo CFLAGS: -I../
-#cgo LDFLAGS: -lrmr_nng -lnng
-*/
-import "C"
-
import (
- "errors"
- "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
- "github.com/spf13/viper"
- "github.com/go-openapi/strfmt"
- httptransport "github.com/go-openapi/runtime/client"
- rtmgrclient "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client"
- rtmgrhandle "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client/handle"
- "math/rand"
+ "fmt"
+ "net/http"
+ "os"
"strconv"
+ "strings"
"time"
+
+ "gerrit.o-ran-sc.org/r/ric-plt/e2ap/pkg/e2ap"
+ rtmgrclient "gerrit.o-ran-sc.org/r/ric-plt/submgr/pkg/rtmgr_client"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/models"
+ "gerrit.o-ran-sc.org/r/ric-plt/xapp-frame/pkg/xapp"
+ httptransport "github.com/go-openapi/runtime/client"
+ "github.com/go-openapi/strfmt"
+ "github.com/gorilla/mux"
+ "github.com/segmentio/ksuid"
+ "github.com/spf13/viper"
)
-type Control struct {
- e2ap *E2ap
- registry *Registry
- rtmgrClient *RtmgrClient
- tracker *Tracker
-}
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
-type RMRMeid struct {
- PlmnID string
- EnbID string
+func idstring(err error, entries ...fmt.Stringer) string {
+ var retval string = ""
+ var filler string = ""
+ for _, entry := range entries {
+ retval += filler + entry.String()
+ filler = " "
+ }
+ if err != nil {
+ retval += filler + "err(" + err.Error() + ")"
+ filler = " "
+ }
+ return retval
}
-type RMRParams struct {
- Mtype int
- Payload []byte
- PayloadLen int
- Meid *RMRMeid
- Xid string
- SubId int
- Src string
- Mbuf *C.rmr_mbuf_t
+//-----------------------------------------------------------------------------
+//
+//-----------------------------------------------------------------------------
+
+var e2tSubReqTimeout time.Duration
+var e2tSubDelReqTime time.Duration
+var e2tRecvMsgTimeout time.Duration
+var e2tMaxSubReqTryCount uint64 // Initial try + retry
+var e2tMaxSubDelReqTryCount uint64 // Initial try + retry
+var readSubsFromDb string
+
+type Control struct {
+ *xapp.RMRClient
+ e2ap *E2ap
+ registry *Registry
+ tracker *Tracker
+ db Sdlnterface
+ //subscriber *xapp.Subscriber
+ CntRecvMsg uint64
+ ResetTestFlag bool
+ Counters map[string]xapp.Counter
}
-var SEEDSN uint16
-var SubscriptionReqChan = make(chan subRouteInfo, 10)
+type RMRMeid struct {
+ PlmnID string
+ EnbID string
+ RanName string
+}
-const (
- CREATE Action = 0
- MERGE Action = 1
- DELETE Action = 3
-)
+type SubmgrRestartTestEvent struct{}
+type SubmgrRestartUpEvent struct{}
func init() {
+ xapp.Logger.Info("SUBMGR")
viper.AutomaticEnv()
viper.SetEnvPrefix("submgr")
viper.AllowEmptyEnv(true)
- SEEDSN = uint16(viper.GetInt("seed_sn"))
- if SEEDSN == 0 {
- rand.Seed(time.Now().UnixNano())
- SEEDSN = uint16(rand.Intn(65535))
- }
- if SEEDSN > 65535 {
- SEEDSN = 0
- }
- xapp.Logger.Info("SUBMGR: Initial Sequence Number: %v", SEEDSN)
}
-func NewControl() Control {
+func NewControl() *Control {
+
+ transport := httptransport.New(viper.GetString("rtmgr.HostAddr")+":"+viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"})
+ rtmgrClient := RtmgrClient{rtClient: rtmgrclient.New(transport, strfmt.Default)}
+
registry := new(Registry)
- registry.Initialize(SEEDSN)
+ registry.Initialize()
+ registry.rtmgrClient = &rtmgrClient
tracker := new(Tracker)
tracker.Init()
- transport := httptransport.New(viper.GetString("rtmgr.HostAddr") + ":" + viper.GetString("rtmgr.port"), viper.GetString("rtmgr.baseUrl"), []string{"http"})
- client := rtmgrclient.New(transport, strfmt.Default)
- handle := rtmgrhandle.NewProvideXappSubscriptionHandleParamsWithTimeout(10 * time.Second)
- rtmgrClient := RtmgrClient{client, handle}
+ c := &Control{e2ap: new(E2ap),
+ registry: registry,
+ tracker: tracker,
+ db: CreateSdl(),
+ //subscriber: subscriber,
+ Counters: xapp.Metric.RegisterCounterGroup(GetMetricsOpts(), "SUBMGR"),
+ }
+ c.ReadConfigParameters("")
+
+ // Register REST handler for testing support
+ xapp.Resource.InjectRoute("/ric/v1/test/{testId}", c.TestRestHandler, "POST")
+ xapp.Resource.InjectRoute("/ric/v1/symptomdata", c.SymptomDataHandler, "GET")
- return Control{new(E2ap), registry, &rtmgrClient, tracker}
+ go xapp.Subscription.Listen(c.SubscriptionHandler, c.QueryHandler, c.SubscriptionDeleteHandlerCB)
+
+ if readSubsFromDb == "false" {
+ return c
+ }
+
+ // Read subscriptions from db
+ xapp.Logger.Info("Reading subscriptions from db")
+ subIds, register, err := c.ReadAllSubscriptionsFromSdl()
+ if err != nil {
+ xapp.Logger.Error("%v", err)
+ } else {
+ c.registry.subIds = subIds
+ c.registry.register = register
+ c.HandleUncompletedSubscriptions(register)
+ }
+ return c
+}
+
+func (c *Control) SymptomDataHandler(w http.ResponseWriter, r *http.Request) {
+ subscriptions, _ := c.registry.QueryHandler()
+ xapp.Resource.SendSymptomDataJson(w, r, subscriptions, "platform/subscriptions.json")
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) ReadConfigParameters(f string) {
+
+ // viper.GetDuration returns nanoseconds
+ e2tSubReqTimeout = viper.GetDuration("controls.e2tSubReqTimeout_ms") * 1000000
+ if e2tSubReqTimeout == 0 {
+ e2tSubReqTimeout = 2000 * 1000000
+ }
+ xapp.Logger.Info("e2tSubReqTimeout %v", e2tSubReqTimeout)
+ e2tSubDelReqTime = viper.GetDuration("controls.e2tSubDelReqTime_ms") * 1000000
+ if e2tSubDelReqTime == 0 {
+ e2tSubDelReqTime = 2000 * 1000000
+ }
+ xapp.Logger.Info("e2tSubDelReqTime %v", e2tSubDelReqTime)
+ e2tRecvMsgTimeout = viper.GetDuration("controls.e2tRecvMsgTimeout_ms") * 1000000
+ if e2tRecvMsgTimeout == 0 {
+ e2tRecvMsgTimeout = 2000 * 1000000
+ }
+ xapp.Logger.Info("e2tRecvMsgTimeout %v", e2tRecvMsgTimeout)
+ e2tMaxSubReqTryCount = viper.GetUint64("controls.e2tMaxSubReqTryCount")
+ if e2tMaxSubReqTryCount == 0 {
+ e2tMaxSubReqTryCount = 1
+ }
+ xapp.Logger.Info("e2tMaxSubReqTryCount %v", e2tMaxSubReqTryCount)
+ e2tMaxSubDelReqTryCount = viper.GetUint64("controls.e2tMaxSubDelReqTryCount")
+ if e2tMaxSubDelReqTryCount == 0 {
+ e2tMaxSubDelReqTryCount = 1
+ }
+ xapp.Logger.Info("e2tMaxSubDelReqTryCount %v", e2tMaxSubDelReqTryCount)
+
+ readSubsFromDb = viper.GetString("controls.readSubsFromDb")
+ if readSubsFromDb == "" {
+ readSubsFromDb = "true"
+ }
+ xapp.Logger.Info("readSubsFromDb %v", readSubsFromDb)
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) HandleUncompletedSubscriptions(register map[uint32]*Subscription) {
+
+ xapp.Logger.Debug("HandleUncompletedSubscriptions. len(register) = %v", len(register))
+ for subId, subs := range register {
+ if subs.SubRespRcvd == false {
+ subs.NoRespToXapp = true
+ xapp.Logger.Debug("SendSubscriptionDeleteReq. subId = %v", subId)
+ c.SendSubscriptionDeleteReq(subs)
+ }
+ }
+}
+
+func (c *Control) ReadyCB(data interface{}) {
+ if c.RMRClient == nil {
+ c.RMRClient = xapp.Rmr
+ }
}
func (c *Control) Run() {
+ xapp.SetReadyCB(c.ReadyCB, nil)
+ xapp.AddConfigChangeListener(c.ReadConfigParameters)
xapp.Run(c)
}
-func (c *Control) Consume(rp *xapp.RMRParams) (err error) {
- switch rp.Mtype {
- case C.RIC_SUB_REQ:
- err = c.handleSubscriptionRequest(rp)
- case C.RIC_SUB_RESP:
- err = c.handleSubscriptionResponse(rp)
- case C.RIC_SUB_DEL_REQ:
- err = c.handleSubscriptionDeleteRequest(rp)
- default:
- err = errors.New("Message Type " + strconv.Itoa(rp.Mtype) + " is discarded")
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) SubscriptionHandler(params interface{}) (*models.SubscriptionResponse, error) {
+
+ restSubId := ksuid.New().String()
+ subResp := models.SubscriptionResponse{}
+ subResp.SubscriptionID = &restSubId
+ p := params.(*models.SubscriptionParams)
+
+ c.CntRecvMsg++
+
+ c.UpdateCounter(cSubReqFromXapp)
+
+ if p.ClientEndpoint == nil {
+ xapp.Logger.Error("ClientEndpoint == nil")
+ return nil, fmt.Errorf("")
}
- return
+
+ _, xAppRmrEndpoint, err := ConstructEndpointAddresses(*p.ClientEndpoint)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ restSubscription, err := c.registry.CreateRESTSubscription(&restSubId, &xAppRmrEndpoint, p.Meid)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ subReqList := e2ap.SubscriptionRequestList{}
+ err = c.e2ap.FillSubscriptionReqMsgs(params, &subReqList, restSubscription)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ c.registry.DeleteRESTSubscription(&restSubId)
+ return nil, err
+ }
+
+ go c.processSubscriptionRequests(restSubscription, &subReqList, p.ClientEndpoint, p.Meid, &restSubId)
+
+ return &subResp, nil
+
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+
+func (c *Control) processSubscriptionRequests(restSubscription *RESTSubscription, subReqList *e2ap.SubscriptionRequestList,
+ clientEndpoint *models.SubscriptionParamsClientEndpoint, meid *string, restSubId *string) {
+
+ xapp.Logger.Info("Subscription Request count=%v ", len(subReqList.E2APSubscriptionRequests))
+
+ _, xAppRmrEndpoint, err := ConstructEndpointAddresses(*clientEndpoint)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ return
+ }
+
+ var requestorID int64
+ var instanceId int64
+ for index := 0; index < len(subReqList.E2APSubscriptionRequests); index++ {
+ subReqMsg := subReqList.E2APSubscriptionRequests[index]
+
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(xAppRmrEndpoint), *restSubId, subReqMsg.RequestId, &xapp.RMRMeid{RanName: *meid})
+ if trans == nil {
+ c.registry.DeleteRESTSubscription(restSubId)
+ xapp.Logger.Error("XAPP-SubReq transaction not created. RESTSubId=%s, EndPoint=%s, Meid=%s", *restSubId, xAppRmrEndpoint, *meid)
+ return
+ }
+
+ defer trans.Release()
+ xapp.Logger.Info("Handle SubscriptionRequest index=%v, %s", index, idstring(nil, trans))
+ subRespMsg, err := c.handleSubscriptionRequest(trans, &subReqMsg, meid, restSubId)
+ if err != nil {
+ // Send notification to xApp that prosessing of a Subscription Request has failed. Currently it is not possible
+ // to indicate error. Such possibility should be added. As a workaround requestorID and instanceId are set to zero value
+ requestorID = (int64)(0)
+ instanceId = (int64)(0)
+ resp := &models.SubscriptionResponse{
+ SubscriptionID: restSubId,
+ SubscriptionInstances: []*models.SubscriptionInstance{
+ &models.SubscriptionInstance{RequestorID: &requestorID, InstanceID: &instanceId},
+ },
+ }
+ // Mark REST subscription request processed.
+ restSubscription.SetProcessed()
+ xapp.Logger.Info("Sending unsuccessful REST notification to endpoint=%v:%v, InstanceId=%v, %s", clientEndpoint.Host, clientEndpoint.HTTPPort, instanceId, idstring(nil, trans))
+ xapp.Subscription.Notify(resp, *clientEndpoint)
+ } else {
+ xapp.Logger.Info("SubscriptionRequest index=%v processed successfully. endpoint=%v, InstanceId=%v, %s", index, *clientEndpoint, instanceId, idstring(nil, trans))
+
+ // Store successfully processed InstanceId for deletion
+ restSubscription.AddInstanceId(subRespMsg.RequestId.InstanceId)
+
+ // Send notification to xApp that a Subscription Request has been processed.
+ requestorID = (int64)(subRespMsg.RequestId.Id)
+ instanceId = (int64)(subRespMsg.RequestId.InstanceId)
+ resp := &models.SubscriptionResponse{
+ SubscriptionID: restSubId,
+ SubscriptionInstances: []*models.SubscriptionInstance{
+ &models.SubscriptionInstance{RequestorID: &requestorID, InstanceID: &instanceId},
+ },
+ }
+ // Mark REST subscription request processesd.
+ restSubscription.SetProcessed()
+ xapp.Logger.Info("Sending successful REST notification to endpoint=%v, InstanceId=%v, %s", *clientEndpoint, instanceId, idstring(nil, trans))
+ xapp.Subscription.Notify(resp, *clientEndpoint)
+ }
+ c.UpdateCounter(cSubRespToXapp)
+ }
+}
+
+//-------------------------------------------------------------------
+//
+//------------------------------------------------------------------
+func (c *Control) handleSubscriptionRequest(trans *TransactionXapp, subReqMsg *e2ap.E2APSubscriptionRequest, meid *string,
+ restSubId *string) (*e2ap.E2APSubscriptionResponse, error) {
+
+ err := c.tracker.Track(trans)
+ if err != nil {
+ err = fmt.Errorf("XAPP-SubReq: %s", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ subs, err := c.registry.AssignToSubscription(trans, subReqMsg, c.ResetTestFlag, c)
+ if err != nil {
+ err = fmt.Errorf("XAPP-SubReq: %s", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return nil, err
+ }
+
+ //
+ // Wake subs request
+ //
+ go c.handleSubscriptionCreate(subs, trans)
+ event, _ := trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+
+ err = nil
+ if event != nil {
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ trans.Release()
+ return themsg, nil
+ case *e2ap.E2APSubscriptionFailure:
+ err = fmt.Errorf("SubscriptionFailure received")
+ return nil, err
+ default:
+ break
+ }
+ }
+ err = fmt.Errorf("XAPP-SubReq: failed %s", idstring(err, trans, subs))
+ xapp.Logger.Error("%s", err.Error())
+ c.registry.RemoveFromSubscription(subs, trans, 5*time.Second, c)
+ return nil, err
}
-func (c *Control) rmrSend(params *xapp.RMRParams) (err error) {
- if !xapp.Rmr.Send(params, false) {
- err = errors.New("rmr.Send() failed")
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) SubscriptionDeleteHandlerCB(restSubId string) error {
+
+ c.CntRecvMsg++
+ c.UpdateCounter(cSubDelReqFromXapp)
+
+ xapp.Logger.Info("SubscriptionDeleteRequest from XAPP")
+
+ restSubscription, err := c.registry.GetRESTSubscription(restSubId)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ if restSubscription == nil {
+ // Subscription was not found
+ return nil
+ } else {
+ if restSubscription.SubReqOngoing == true {
+ err := fmt.Errorf("Handling of the REST Subscription Request still ongoing %s", restSubId)
+ xapp.Logger.Error("%s", err.Error())
+ return err
+ } else if restSubscription.SubDelReqOngoing == true {
+ // Previous request for same restSubId still ongoing
+ return nil
+ }
+ }
+ }
+
+ xAppRmrEndPoint := restSubscription.xAppRmrEndPoint
+ go func() {
+ for _, instanceId := range restSubscription.InstanceIds {
+ err := c.SubscriptionDeleteHandler(&restSubId, &xAppRmrEndPoint, &restSubscription.Meid, instanceId)
+ if err != nil {
+ xapp.Logger.Error("%s", err.Error())
+ //return err
+ }
+ xapp.Logger.Info("Deleteting instanceId = %v", instanceId)
+ restSubscription.DeleteInstanceId(instanceId)
+ }
+ c.registry.DeleteRESTSubscription(&restSubId)
+ }()
+
+ c.UpdateCounter(cSubDelRespToXapp)
+
+ return nil
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) SubscriptionDeleteHandler(restSubId *string, endPoint *string, meid *string, instanceId uint32) error {
+
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(*endPoint), *restSubId, e2ap.RequestId{0, 0}, &xapp.RMRMeid{RanName: *meid})
+ if trans == nil {
+ err := fmt.Errorf("XAPP-SubDelReq transaction not created. restSubId %s, endPoint %s, meid %s, instanceId %v", *restSubId, *endPoint, *meid, instanceId)
+ xapp.Logger.Error("%s", err.Error())
+ }
+ defer trans.Release()
+
+ err := c.tracker.Track(trans)
+ if err != nil {
+ err := fmt.Errorf("XAPP-SubDelReq %s:", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return &time.ParseError{}
+ }
+
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{instanceId})
+ if err != nil {
+ err := fmt.Errorf("XAPP-SubDelReq %s:", idstring(err, trans))
+ xapp.Logger.Error("%s", err.Error())
+ return err
+ }
+ //
+ // Wake subs delete
+ //
+ go c.handleSubscriptionDelete(subs, trans)
+ trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+
+ xapp.Logger.Debug("XAPP-SubDelReq: Handling event %s ", idstring(nil, trans, subs))
+
+ c.registry.RemoveFromSubscription(subs, trans, 5*time.Second, c)
+
+ return nil
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) QueryHandler() (models.SubscriptionList, error) {
+ xapp.Logger.Info("QueryHandler() called")
+
+ c.CntRecvMsg++
+
+ return c.registry.QueryHandler()
+}
+
+func (c *Control) TestRestHandler(w http.ResponseWriter, r *http.Request) {
+ xapp.Logger.Info("TestRestHandler() called")
+
+ pathParams := mux.Vars(r)
+ s := pathParams["testId"]
+
+ // This can be used to delete single subscription from db
+ if contains := strings.Contains(s, "deletesubid="); contains == true {
+ var splits = strings.Split(s, "=")
+ if subId, err := strconv.ParseInt(splits[1], 10, 64); err == nil {
+ xapp.Logger.Info("RemoveSubscriptionFromSdl() called. subId = %v", subId)
+ c.RemoveSubscriptionFromSdl(uint32(subId))
+ return
+ }
+ }
+
+ // This can be used to remove all subscriptions db from
+ if s == "emptydb" {
+ xapp.Logger.Info("RemoveAllSubscriptionsFromSdl() called")
+ c.RemoveAllSubscriptionsFromSdl()
+ return
+ }
+
+ // This is meant to cause submgr's restart in testing
+ if s == "restart" {
+ xapp.Logger.Info("os.Exit(1) called")
+ os.Exit(1)
+ }
+
+ xapp.Logger.Info("Unsupported rest command received %s", s)
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+
+func (c *Control) rmrSendToE2T(desc string, subs *Subscription, trans *TransactionSubs) (err error) {
+ params := &xapp.RMRParams{}
+ params.Mtype = trans.GetMtype()
+ params.SubId = int(subs.GetReqId().InstanceId)
+ params.Xid = ""
+ params.Meid = subs.GetMeid()
+ params.Src = ""
+ params.PayloadLen = len(trans.Payload.Buf)
+ params.Payload = trans.Payload.Buf
+ params.Mbuf = nil
+ xapp.Logger.Info("MSG to E2T: %s %s %s", desc, trans.String(), params.String())
+ err = c.SendWithRetry(params, false, 5)
+ if err != nil {
+ xapp.Logger.Error("rmrSendToE2T: Send failed: %+v", err)
+ }
+ return err
+}
+
+func (c *Control) rmrSendToXapp(desc string, subs *Subscription, trans *TransactionXapp) (err error) {
+
+ params := &xapp.RMRParams{}
+ params.Mtype = trans.GetMtype()
+ params.SubId = int(subs.GetReqId().InstanceId)
+ params.Xid = trans.GetXid()
+ params.Meid = trans.GetMeid()
+ params.Src = ""
+ params.PayloadLen = len(trans.Payload.Buf)
+ params.Payload = trans.Payload.Buf
+ params.Mbuf = nil
+ xapp.Logger.Info("MSG to XAPP: %s %s %s", desc, trans.String(), params.String())
+ err = c.SendWithRetry(params, false, 5)
+ if err != nil {
+ xapp.Logger.Error("rmrSendToXapp: Send failed: %+v", err)
+ }
+ return err
+}
+
+func (c *Control) Consume(msg *xapp.RMRParams) (err error) {
+ if c.RMRClient == nil {
+ err = fmt.Errorf("Rmr object nil can handle %s", msg.String())
+ xapp.Logger.Error("%s", err.Error())
+ return
+ }
+ c.CntRecvMsg++
+
+ defer c.RMRClient.Free(msg.Mbuf)
+
+ // xapp-frame might use direct access to c buffer and
+ // when msg.Mbuf is freed, someone might take it into use
+ // and payload data might be invalid inside message handle function
+ //
+ // subscriptions won't load system a lot so there is no
+ // real performance hit by cloning buffer into new go byte slice
+ cPay := append(msg.Payload[:0:0], msg.Payload...)
+ msg.Payload = cPay
+ msg.PayloadLen = len(cPay)
+
+ switch msg.Mtype {
+ case xapp.RIC_SUB_REQ:
+ go c.handleXAPPSubscriptionRequest(msg)
+ case xapp.RIC_SUB_RESP:
+ go c.handleE2TSubscriptionResponse(msg)
+ case xapp.RIC_SUB_FAILURE:
+ go c.handleE2TSubscriptionFailure(msg)
+ case xapp.RIC_SUB_DEL_REQ:
+ go c.handleXAPPSubscriptionDeleteRequest(msg)
+ case xapp.RIC_SUB_DEL_RESP:
+ go c.handleE2TSubscriptionDeleteResponse(msg)
+ case xapp.RIC_SUB_DEL_FAILURE:
+ go c.handleE2TSubscriptionDeleteFailure(msg)
+ default:
+ xapp.Logger.Info("Unknown Message Type '%d', discarding", msg.Mtype)
}
return
}
-func (c *Control) handleSubscriptionRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionRequestSequenceNumber(params.Payload)
+//-------------------------------------------------------------------
+// handle from XAPP Subscription Request
+//------------------------------------------------------------------
+func (c *Control) handleXAPPSubscriptionRequest(params *xapp.RMRParams) {
+ xapp.Logger.Info("MSG from XAPP: %s", params.String())
+ c.UpdateCounter(cSubReqFromXapp)
+
+ subReqMsg, err := c.e2ap.UnpackSubscriptionRequest(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, params))
+ return
+ }
+
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(params.Src), params.Xid, subReqMsg.RequestId, params.Meid)
+ if trans == nil {
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(fmt.Errorf("transaction not created"), params))
+ return
+ }
+ defer trans.Release()
+
+ if err = c.tracker.Track(trans); err != nil {
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans))
+ return
+ }
+
+ //TODO handle subscription toward e2term inside AssignToSubscription / hide handleSubscriptionCreate in it?
+ subs, err := c.registry.AssignToSubscription(trans, subReqMsg, c.ResetTestFlag, c)
if err != nil {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans))
return
}
- xapp.Logger.Info("Subscription Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- /* Reserve a sequence number and set it in the payload */
- new_sub_id := c.registry.ReserveSequenceNumber()
+ c.wakeSubscriptionRequest(subs, trans)
+}
+
+//-------------------------------------------------------------------
+// Wake Subscription Request to E2node
+//------------------------------------------------------------------
+func (c *Control) wakeSubscriptionRequest(subs *Subscription, trans *TransactionXapp) {
+
+ go c.handleSubscriptionCreate(subs, trans)
+ event, _ := trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+ var err error
+ if event != nil {
+ switch themsg := event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ themsg.RequestId.Id = trans.RequestId.Id
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionResponse(themsg)
+ if err == nil {
+ trans.Release()
+ c.UpdateCounter(cSubRespToXapp)
+ c.rmrSendToXapp("", subs, trans)
+ return
+ }
+ case *e2ap.E2APSubscriptionFailure:
+ themsg.RequestId.Id = trans.RequestId.Id
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionFailure(themsg)
+ if err == nil {
+ c.UpdateCounter(cSubFailToXapp)
+ c.rmrSendToXapp("", subs, trans)
+ }
+ default:
+ break
+ }
+ }
+ xapp.Logger.Info("XAPP-SubReq: failed %s", idstring(err, trans, subs))
+ //c.registry.RemoveFromSubscription(subs, trans, 5*time.Second)
+}
- _, err = c.e2ap.SetSubscriptionRequestSequenceNumber(params.Payload, new_sub_id)
+//-------------------------------------------------------------------
+// handle from XAPP Subscription Delete Request
+//------------------------------------------------------------------
+func (c *Control) handleXAPPSubscriptionDeleteRequest(params *xapp.RMRParams) {
+ xapp.Logger.Info("MSG from XAPP: %s", params.String())
+ c.UpdateCounter(cSubDelReqFromXapp)
+
+ subDelReqMsg, err := c.e2ap.UnpackSubscriptionDeleteRequest(params.Payload)
if err != nil {
- err = errors.New("Unable to set Subscription Sequence Number in Payload due to: " + err.Error())
+ xapp.Logger.Error("XAPP-SubDelReq %s", idstring(err, params))
+ return
+ }
+
+ trans := c.tracker.NewXappTransaction(xapp.NewRmrEndpoint(params.Src), params.Xid, subDelReqMsg.RequestId, params.Meid)
+ if trans == nil {
+ xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(fmt.Errorf("transaction not created"), params))
return
}
+ defer trans.Release()
- src_addr, src_port, err := c.rtmgrClient.SplitSource(params.Src)
+ err = c.tracker.Track(trans)
if err != nil {
- xapp.Logger.Error("Failed to update routing-manager about the subscription request with reason: %s", err)
+ xapp.Logger.Error("XAPP-SubReq: %s", idstring(err, trans))
return
}
- /* Create transatcion records for every subscription request */
- xact_key := Transaction_key{new_sub_id, CREATE}
- xact_value := Transaction{*src_addr, *src_port, params.Payload}
- err = c.tracker.Track_transaction(xact_key, xact_value)
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{trans.GetSubId()})
if err != nil {
- xapp.Logger.Error("Failed to create a transaction record due to %v", err)
+ xapp.Logger.Error("XAPP-SubDelReq: %s", idstring(err, trans))
return
}
- /* Update routing manager about the new subscription*/
- sub_route_action := subRouteInfo{CREATE, *src_addr, *src_port, new_sub_id }
- go c.rtmgrClient.SubscriptionRequestUpdate()
- SubscriptionReqChan <- sub_route_action
+ //
+ // Wake subs delete
+ //
+ go c.handleSubscriptionDelete(subs, trans)
+ trans.WaitEvent(0) //blocked wait as timeout is handled in subs side
+
+ xapp.Logger.Debug("XAPP-SubDelReq: Handling event %s ", idstring(nil, trans, subs))
+
+ if subs.NoRespToXapp == true {
+ // Do no send delete responses to xapps due to submgr restart is deleting uncompleted subscriptions
+ return
+ }
+
+ // Whatever is received success, fail or timeout, send successful delete response
+ subDelRespMsg := &e2ap.E2APSubscriptionDeleteResponse{}
+ subDelRespMsg.RequestId.Id = trans.RequestId.Id
+ subDelRespMsg.RequestId.InstanceId = subs.GetReqId().RequestId.InstanceId
+ subDelRespMsg.FunctionId = subs.SubReqMsg.FunctionId
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteResponse(subDelRespMsg)
+ if err == nil {
+ c.UpdateCounter(cSubDelRespToXapp)
+ c.rmrSendToXapp("", subs, trans)
+ }
+
+ //TODO handle subscription toward e2term insiged RemoveFromSubscription / hide handleSubscriptionDelete in it?
+ //c.registry.RemoveFromSubscription(subs, trans, 5*time.Second)
+}
- // Setting new subscription ID in the RMR header
- params.SubId = int(new_sub_id)
+//-------------------------------------------------------------------
+// SUBS CREATE Handling
+//-------------------------------------------------------------------
+func (c *Control) handleSubscriptionCreate(subs *Subscription, parentTrans *TransactionXapp) {
+
+ var removeSubscriptionFromDb bool = false
+ trans := c.tracker.NewSubsTransaction(subs)
+ subs.WaitTransactionTurn(trans)
+ defer subs.ReleaseTransactionTurn(trans)
+ defer trans.Release()
+
+ xapp.Logger.Debug("SUBS-SubReq: Handling %s ", idstring(nil, trans, subs, parentTrans))
+
+ subRfMsg, valid := subs.GetCachedResponse()
+ if subRfMsg == nil && valid == true {
+ event := c.sendE2TSubscriptionRequest(subs, trans, parentTrans)
+ switch event.(type) {
+ case *e2ap.E2APSubscriptionResponse:
+ subRfMsg, valid = subs.SetCachedResponse(event, true)
+ subs.SubRespRcvd = true
+ case *e2ap.E2APSubscriptionFailure:
+ removeSubscriptionFromDb = true
+ subRfMsg, valid = subs.SetCachedResponse(event, false)
+ xapp.Logger.Info("SUBS-SubReq: internal delete due event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans))
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ case *SubmgrRestartTestEvent:
+ // This simulates that no response has been received and after restart subscriptions are restored from db
+ xapp.Logger.Debug("Test restart flag is active. Dropping this transaction to test restart case")
+ return
+ default:
+ xapp.Logger.Info("SUBS-SubReq: internal delete due event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans))
+ removeSubscriptionFromDb = true
+ subRfMsg, valid = subs.SetCachedResponse(nil, false)
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ }
+ xapp.Logger.Debug("SUBS-SubReq: Handling (e2t response %s) %s", typeofSubsMessage(subRfMsg), idstring(nil, trans, subs, parentTrans))
+ } else {
+ xapp.Logger.Debug("SUBS-SubReq: Handling (cached response %s) %s", typeofSubsMessage(subRfMsg), idstring(nil, trans, subs, parentTrans))
+ }
+
+ //Now RemoveFromSubscription in here to avoid race conditions (mostly concerns delete)
+ if valid == false {
+ c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second, c)
+ }
+
+ c.UpdateSubscriptionInDB(subs, removeSubscriptionFromDb)
+ parentTrans.SendEvent(subRfMsg, 0)
+}
+
+//-------------------------------------------------------------------
+// SUBS DELETE Handling
+//-------------------------------------------------------------------
+
+func (c *Control) handleSubscriptionDelete(subs *Subscription, parentTrans *TransactionXapp) {
+
+ trans := c.tracker.NewSubsTransaction(subs)
+ subs.WaitTransactionTurn(trans)
+ defer subs.ReleaseTransactionTurn(trans)
+ defer trans.Release()
+
+ xapp.Logger.Debug("SUBS-SubDelReq: Handling %s", idstring(nil, trans, subs, parentTrans))
+
+ subs.mutex.Lock()
+
+ if subs.valid && subs.EpList.HasEndpoint(parentTrans.GetEndpoint()) && subs.EpList.Size() == 1 {
+ subs.valid = false
+ subs.mutex.Unlock()
+ c.sendE2TSubscriptionDeleteRequest(subs, trans, parentTrans)
+ } else {
+ subs.mutex.Unlock()
+ }
+ //Now RemoveFromSubscription in here to avoid race conditions (mostly concerns delete)
+ // If parallel deletes ongoing both might pass earlier sendE2TSubscriptionDeleteRequest(...) if
+ // RemoveFromSubscription locates in caller side (now in handleXAPPSubscriptionDeleteRequest(...))
+ c.registry.RemoveFromSubscription(subs, parentTrans, 5*time.Second, c)
+ c.registry.UpdateSubscriptionToDb(subs, c)
+ parentTrans.SendEvent(nil, 0)
+}
- xapp.Logger.Info("Generated ID: %v. Forwarding to E2 Termination...", int(new_sub_id))
- c.rmrSend(params)
+//-------------------------------------------------------------------
+// send to E2T Subscription Request
+//-------------------------------------------------------------------
+func (c *Control) sendE2TSubscriptionRequest(subs *Subscription, trans *TransactionSubs, parentTrans *TransactionXapp) interface{} {
+ var err error
+ var event interface{} = nil
+ var timedOut bool = false
+
+ subReqMsg := subs.SubReqMsg
+ subReqMsg.RequestId = subs.GetReqId().RequestId
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionRequest(subReqMsg)
+ if err != nil {
+ xapp.Logger.Error("SUBS-SubReq: %s", idstring(err, trans, subs, parentTrans))
+ return event
+ }
+
+ // Write uncompleted subscrition in db. If no response for subscrition it need to be re-processed (deleted) after restart
+ c.WriteSubscriptionToDb(subs)
+ for retries := uint64(0); retries < e2tMaxSubReqTryCount; retries++ {
+ desc := fmt.Sprintf("(retry %d)", retries)
+ if retries == 0 {
+ c.UpdateCounter(cSubReqToE2)
+ } else {
+ c.UpdateCounter(cSubReReqToE2)
+ }
+ c.rmrSendToE2T(desc, subs, trans)
+ if subs.DoNotWaitSubResp == false {
+ event, timedOut = trans.WaitEvent(e2tSubReqTimeout)
+ if timedOut {
+ c.UpdateCounter(cSubReqTimerExpiry)
+ continue
+ }
+ } else {
+ // Simulating case where subscrition request has been sent but response has not been received before restart
+ event = &SubmgrRestartTestEvent{}
+ }
+ break
+ }
+ xapp.Logger.Debug("SUBS-SubReq: Response handling event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans))
+ return event
+}
+
+//-------------------------------------------------------------------
+// send to E2T Subscription Delete Request
+//-------------------------------------------------------------------
+
+func (c *Control) sendE2TSubscriptionDeleteRequest(subs *Subscription, trans *TransactionSubs, parentTrans *TransactionXapp) interface{} {
+ var err error
+ var event interface{}
+ var timedOut bool
+
+ subDelReqMsg := &e2ap.E2APSubscriptionDeleteRequest{}
+ subDelReqMsg.RequestId = subs.GetReqId().RequestId
+ subDelReqMsg.FunctionId = subs.SubReqMsg.FunctionId
+ trans.Mtype, trans.Payload, err = c.e2ap.PackSubscriptionDeleteRequest(subDelReqMsg)
+ if err != nil {
+ xapp.Logger.Error("SUBS-SubDelReq: %s", idstring(err, trans, subs, parentTrans))
+ return event
+ }
+
+ for retries := uint64(0); retries < e2tMaxSubDelReqTryCount; retries++ {
+ desc := fmt.Sprintf("(retry %d)", retries)
+ if retries == 0 {
+ c.UpdateCounter(cSubDelReqToE2)
+ } else {
+ c.UpdateCounter(cSubDelReReqToE2)
+ }
+ c.rmrSendToE2T(desc, subs, trans)
+ event, timedOut = trans.WaitEvent(e2tSubDelReqTime)
+ if timedOut {
+ c.UpdateCounter(cSubDelReqTimerExpiry)
+ continue
+ }
+ break
+ }
+ xapp.Logger.Debug("SUBS-SubDelReq: Response handling event(%s) %s", typeofSubsMessage(event), idstring(nil, trans, subs, parentTrans))
+ return event
+}
+
+//-------------------------------------------------------------------
+// handle from E2T Subscription Response
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionResponse(params *xapp.RMRParams) {
+ xapp.Logger.Info("MSG from E2T: %s", params.String())
+ c.UpdateCounter(cSubRespFromE2)
+ subRespMsg, err := c.e2ap.UnpackSubscriptionResponse(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("MSG-SubResp %s", idstring(err, params))
+ return
+ }
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subRespMsg.RequestId.InstanceId})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(err, params))
+ return
+ }
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(err, params, subs))
+ return
+ }
+ sendOk, timedOut := trans.SendEvent(subRespMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubResp: %s", idstring(err, trans, subs))
+ }
return
}
-func (c *Control) handleSubscriptionResponse(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionResponseSequenceNumber(params.Payload)
+//-------------------------------------------------------------------
+// handle from E2T Subscription Failure
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionFailure(params *xapp.RMRParams) {
+ xapp.Logger.Info("MSG from E2T: %s", params.String())
+ c.UpdateCounter(cSubFailFromE2)
+ subFailMsg, err := c.e2ap.UnpackSubscriptionFailure(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("MSG-SubFail %s", idstring(err, params))
+ return
+ }
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subFailMsg.RequestId.InstanceId})
if err != nil {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(err, params))
return
}
- xapp.Logger.Info("Subscription Response Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- if !c.registry.IsValidSequenceNumber(payload_seq_num) {
- err = errors.New("Unknown Subscription ID: " + strconv.Itoa(int(payload_seq_num)) + " in Subscritpion Response. Message discarded.")
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(err, params, subs))
return
}
- c.registry.setSubscriptionToConfirmed(payload_seq_num)
- xapp.Logger.Info("Subscription Response Registered. Forwarding to Requestor...")
- c.rmrSend(params)
+ sendOk, timedOut := trans.SendEvent(subFailMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubFail: %s", idstring(err, trans, subs))
+ }
return
}
-func (act Action) String() string {
- actions := [...]string{
- "CREATE",
- "MERGE",
- "DELETE",
+//-------------------------------------------------------------------
+// handle from E2T Subscription Delete Response
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionDeleteResponse(params *xapp.RMRParams) (err error) {
+ xapp.Logger.Info("MSG from E2T: %s", params.String())
+ c.UpdateCounter(cSubDelRespFromE2)
+ subDelRespMsg, err := c.e2ap.UnpackSubscriptionDeleteResponse(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params))
+ return
+ }
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subDelRespMsg.RequestId.InstanceId})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params))
+ return
}
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, params, subs))
+ return
+ }
+ sendOk, timedOut := trans.SendEvent(subDelRespMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubDelResp: %s", idstring(err, trans, subs))
+ }
+ return
+}
- if act < CREATE || act > DELETE {
- return "Unknown"
+//-------------------------------------------------------------------
+// handle from E2T Subscription Delete Failure
+//-------------------------------------------------------------------
+func (c *Control) handleE2TSubscriptionDeleteFailure(params *xapp.RMRParams) {
+ xapp.Logger.Info("MSG from E2T: %s", params.String())
+ c.UpdateCounter(cSubDelFailFromE2)
+ subDelFailMsg, err := c.e2ap.UnpackSubscriptionDeleteFailure(params.Payload)
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params))
+ return
}
- return actions[act]
+ subs, err := c.registry.GetSubscriptionFirstMatch([]uint32{subDelFailMsg.RequestId.InstanceId})
+ if err != nil {
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params))
+ return
+ }
+ trans := subs.GetTransaction()
+ if trans == nil {
+ err = fmt.Errorf("Ongoing transaction not found")
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, params, subs))
+ return
+ }
+ sendOk, timedOut := trans.SendEvent(subDelFailMsg, e2tRecvMsgTimeout)
+ if sendOk == false {
+ err = fmt.Errorf("Passing event to transaction failed: sendOk(%t) timedOut(%t)", sendOk, timedOut)
+ xapp.Logger.Error("MSG-SubDelFail: %s", idstring(err, trans, subs))
+ }
+ return
}
-func (act Action) valid() bool {
- switch act {
- case CREATE, MERGE, DELETE:
- return true
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func typeofSubsMessage(v interface{}) string {
+ if v == nil {
+ return "NIL"
+ }
+ switch v.(type) {
+ case *e2ap.E2APSubscriptionRequest:
+ return "SubReq"
+ case *e2ap.E2APSubscriptionResponse:
+ return "SubResp"
+ case *e2ap.E2APSubscriptionFailure:
+ return "SubFail"
+ case *e2ap.E2APSubscriptionDeleteRequest:
+ return "SubDelReq"
+ case *e2ap.E2APSubscriptionDeleteResponse:
+ return "SubDelResp"
+ case *e2ap.E2APSubscriptionDeleteFailure:
+ return "SubDelFail"
default:
- return false
+ return "Unknown"
+ }
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) WriteSubscriptionToDb(subs *Subscription) {
+ xapp.Logger.Debug("WriteSubscriptionToDb() subId = %v", subs.ReqId.InstanceId)
+ err := c.WriteSubscriptionToSdl(subs.ReqId.InstanceId, subs)
+ if err != nil {
+ xapp.Logger.Error("%v", err)
+ }
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) UpdateSubscriptionInDB(subs *Subscription, removeSubscriptionFromDb bool) {
+
+ if removeSubscriptionFromDb == true {
+ // Subscription was written in db already when subscription request was sent to BTS, except for merged request
+ c.RemoveSubscriptionFromDb(subs)
+ } else {
+ // Update is needed for successful response and merge case here
+ if subs.RetryFromXapp == false {
+ c.WriteSubscriptionToDb(subs)
+ }
+ }
+ subs.RetryFromXapp = false
+}
+
+//-------------------------------------------------------------------
+//
+//-------------------------------------------------------------------
+func (c *Control) RemoveSubscriptionFromDb(subs *Subscription) {
+ xapp.Logger.Debug("RemoveSubscriptionFromDb() subId = %v", subs.ReqId.InstanceId)
+ err := c.RemoveSubscriptionFromSdl(subs.ReqId.InstanceId)
+ if err != nil {
+ xapp.Logger.Error("%v", err)
}
}
-func (c *Control) handleSubscriptionDeleteRequest(params *xapp.RMRParams) (err error) {
- payload_seq_num, err := c.e2ap.GetSubscriptionDeleteRequestSequenceNumber(params.Payload)
+func (c *Control) SendSubscriptionDeleteReq(subs *Subscription) {
+
+ xapp.Logger.Debug("Sending subscription delete due to restart. subId = %v", subs.ReqId.InstanceId)
+
+ // Send delete for every endpoint in the subscription
+ subDelReqMsg := &e2ap.E2APSubscriptionDeleteRequest{}
+ subDelReqMsg.RequestId = subs.GetReqId().RequestId
+ subDelReqMsg.FunctionId = subs.SubReqMsg.FunctionId
+ mType, payload, err := c.e2ap.PackSubscriptionDeleteRequest(subDelReqMsg)
if err != nil {
- err = errors.New("Unable to get Subscription Sequence Number from Payload due to: " + err.Error())
+ xapp.Logger.Error("SendSubscriptionDeleteReq() %s", idstring(err))
return
}
- xapp.Logger.Info("Subscription Delete Request Received. RMR SUBSCRIPTION_ID: %v | PAYLOAD SEQUENCE_NUMBER: %v", params.SubId, payload_seq_num)
- if c.registry.IsValidSequenceNumber(payload_seq_num) {
- c.registry.deleteSubscription(payload_seq_num)
+ for _, endPoint := range subs.EpList.Endpoints {
+ params := &xapp.RMRParams{}
+ params.Mtype = mType
+ params.SubId = int(subs.GetReqId().InstanceId)
+ params.Xid = ""
+ params.Meid = subs.Meid
+ params.Src = endPoint.String()
+ params.PayloadLen = len(payload.Buf)
+ params.Payload = payload.Buf
+ params.Mbuf = nil
+ subs.DeleteFromDb = true
+ c.handleXAPPSubscriptionDeleteRequest(params)
}
- xapp.Logger.Info("Subscription ID: %v. Forwarding to E2 Termination...", int(payload_seq_num))
- c.rmrSend(params)
- return
}
Code Review / ric-plt / submgr.git / blobdiff