// 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 httpmsghandlers
import (
- "e2mgr/e2pdus"
+ "e2mgr/e2managererrors"
"e2mgr/logger"
- "e2mgr/rNibWriter"
- "e2mgr/rnibBuilders"
- "fmt"
- "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
- "os"
- "sync"
- "time"
-
+ "e2mgr/managers"
"e2mgr/models"
- "e2mgr/rmrCgo"
- "e2mgr/sessions"
+ "e2mgr/services"
+ "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/common"
+ "gerrit.o-ran-sc.org/r/ric-plt/nodeb-rnib.git/entities"
+ "github.com/go-ozzo/ozzo-validation"
+ "github.com/go-ozzo/ozzo-validation/is"
)
const (
- ENV_RIC_ID = "RIC_ID"
- MaxAsn1CodecAllocationBufferSize = 64 * 1024
- MaxAsn1PackedBufferSize = 4096
- MaxAsn1CodecMessageBufferSize = 4096
+ X2SetupActivityName = "X2_SETUP"
+ EndcSetupActivityName = "ENDC_SETUP"
)
-
-/*The Ric Id is the combination of pLMNId and ENBId*/
-var pLMNId []byte
-var eNBId []byte
-var eNBIdBitqty uint
-var ricFlag = []byte{0xbb, 0xbc, 0xcc} /*pLMNId [3]bytes*/
-
type SetupRequestHandler struct {
- rnibWriterProvider func() rNibWriter.RNibWriter
+ rNibDataService services.RNibDataService
+ logger *logger.Logger
+ ranSetupManager managers.IRanSetupManager
+ protocol entities.E2ApplicationProtocol
+ e2tAssociationManager *managers.E2TAssociationManager
+ e2tInstancesManager managers.IE2TInstancesManager
}
-func NewSetupRequestHandler(rnibWriterProvider func() rNibWriter.RNibWriter) *SetupRequestHandler {
+func NewSetupRequestHandler(logger *logger.Logger, rNibDataService services.RNibDataService,
+ ranSetupManager managers.IRanSetupManager, protocol entities.E2ApplicationProtocol, e2tInstancesManager managers.IE2TInstancesManager, e2tAssociationManager *managers.E2TAssociationManager) *SetupRequestHandler {
return &SetupRequestHandler{
- rnibWriterProvider: rnibWriterProvider,
+ logger: logger,
+ rNibDataService: rNibDataService,
+ ranSetupManager: ranSetupManager,
+ protocol: protocol,
+ e2tAssociationManager: e2tAssociationManager,
+ e2tInstancesManager: e2tInstancesManager,
}
}
-func (handler SetupRequestHandler) PreHandle(logger *logger.Logger, details *models.RequestDetails) error {
- nodebInfo, nodebIdentity := rnibBuilders.CreateInitialNodeInfo(details, entities.E2ApplicationProtocol_X2_SETUP_REQUEST)
+func (h *SetupRequestHandler) Handle(request models.Request) (models.IResponse, error) {
+
+ setupRequest := request.(models.SetupRequest)
- rNibErr := handler.rnibWriterProvider().SaveNodeb(nodebIdentity, nodebInfo)
- if rNibErr != nil {
- logger.Errorf("#setup_request_handler.PreHandle - failed to save initial nodeb entity for ran name: %v in RNIB. Error: %s", details.RanName, rNibErr.Error())
- } else {
- logger.Infof("#setup_request_handler.PreHandle - initial nodeb entity for ran name: %v was saved to RNIB ", details.RanName)
+ err := h.validateRequestDetails(setupRequest)
+ if err != nil {
+ return nil, err
}
- return rNibErr
-}
+ nodebInfo, err := h.rNibDataService.GetNodeb(setupRequest.RanName)
-func (SetupRequestHandler) CreateMessage(logger *logger.Logger, requestDetails *models.RequestDetails, messageChannel chan *models.E2RequestMessage, e2sessions sessions.E2Sessions, startTime time.Time, wg sync.WaitGroup) {
+ if err != nil {
+ _, ok := err.(*common.ResourceNotFoundError)
+ if !ok {
+ h.logger.Errorf("#SetupRequestHandler.Handle - failed to get nodeB entity for ran name: %v from RNIB. Error: %s", setupRequest.RanName, err)
+ return nil, e2managererrors.NewRnibDbError()
+ }
- wg.Add(1)
+ result := h.connectNewRan(&setupRequest, h.protocol)
+ return nil, result
+ }
- transactionId := requestDetails.RanName
- e2sessions[transactionId] = sessions.E2SessionDetails{SessionStart: startTime, Request: requestDetails}
- setupRequestMessage := models.NewE2RequestMessage(transactionId, requestDetails.RanIp, requestDetails.RanPort, requestDetails.RanName, e2pdus.PackedX2setupRequest)
+ if nodebInfo.ConnectionStatus == entities.ConnectionStatus_SHUTTING_DOWN {
+ h.logger.Errorf("#SetupRequestHandler.connectExistingRanWithAssociatedE2TAddress - RAN: %s in wrong state (%s)", nodebInfo.RanName, entities.ConnectionStatus_name[int32(nodebInfo.ConnectionStatus)])
+ result := e2managererrors.NewWrongStateError(h.getActivityName(h.protocol), entities.ConnectionStatus_name[int32(nodebInfo.ConnectionStatus)])
+ return nil, result
+ }
- logger.Debugf("#setup_request_handler.CreateMessage - PDU: %s", e2pdus.PackedX2setupRequestAsString)
- logger.Debugf("#setup_request_handler.CreateMessage - setupRequestMessage was created successfully. setup request details(transactionId = [%s]): %+v", transactionId, setupRequestMessage)
- messageChannel <- setupRequestMessage
+ if len(nodebInfo.AssociatedE2TInstanceAddress) != 0 {
+ result := h.connectExistingRanWithAssociatedE2TAddress(nodebInfo)
+ return nil, result
+ }
- wg.Done()
+ result := h.connectExistingRanWithoutAssociatedE2TAddress(nodebInfo)
+ return nil, result
}
-//Expected value in RIC_ID = pLMN_Identity-eNB_ID/<eNB_ID size in bits>
-//<6 hex digits>-<6 or 8 hex digits>/<18|20|21|28>
-//Each byte is represented by two hex digits, the value in the lowest byte of the eNB_ID must be assigned to the lowest bits
-//For example, to get the value of ffffeab/28 the last byte must be 0x0b, not 0xb0 (-ffffea0b/28).
-func parseRicID(ricId string) error {
- if _, err := fmt.Sscanf(ricId, "%6x-%8x/%2d", &pLMNId, &eNBId, &eNBIdBitqty); err != nil {
- return fmt.Errorf("unable to extract the value of %s: %s", ENV_RIC_ID, err)
+func createInitialNodeInfo(requestDetails *models.SetupRequest, protocol entities.E2ApplicationProtocol, e2tAddress string) (*entities.NodebInfo, *entities.NbIdentity) {
+
+ nodebInfo := &entities.NodebInfo{
+ Ip: requestDetails.RanIp,
+ Port: uint32(requestDetails.RanPort),
+ ConnectionStatus: entities.ConnectionStatus_CONNECTING,
+ E2ApplicationProtocol: protocol,
+ RanName: requestDetails.RanName,
+ ConnectionAttempts: 0,
}
- if len(pLMNId) < 3 {
- return fmt.Errorf("invalid value for %s, len(pLMNId:%v) != 3", ENV_RIC_ID, pLMNId)
+ nbIdentity := &entities.NbIdentity{
+ InventoryName: requestDetails.RanName,
}
- if len(eNBId) < 3 {
- return fmt.Errorf("invalid value for %s, len(eNBId:%v) != 3 or 4", ENV_RIC_ID, eNBId)
+ return nodebInfo, nbIdentity
+}
+
+func (h *SetupRequestHandler) connectExistingRanWithoutAssociatedE2TAddress(nodebInfo *entities.NodebInfo) error {
+ e2tAddress, err := h.e2tInstancesManager.SelectE2TInstance()
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectExistingRanWithoutAssociatedE2TAddress - RAN name: %s - failed selecting E2T instance", nodebInfo.RanName)
+
+ if nodebInfo.ConnectionStatus == entities.ConnectionStatus_DISCONNECTED && nodebInfo.ConnectionAttempts == 0 {
+ return err
+ }
+
+ nodebInfo.ConnectionStatus = entities.ConnectionStatus_DISCONNECTED
+ nodebInfo.ConnectionAttempts = 0
+ updateError := h.rNibDataService.UpdateNodebInfo(nodebInfo)
+
+ if updateError != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectExistingRanWithoutAssociatedE2TAddress - RAN name: %s - failed updating nodeb. error: %s", nodebInfo.RanName, updateError)
+ }
+
+ return err
}
- if eNBIdBitqty != e2pdus.ShortMacro_eNB_ID && eNBIdBitqty != e2pdus.Macro_eNB_ID && eNBIdBitqty != e2pdus.LongMacro_eNB_ID && eNBIdBitqty != e2pdus.Home_eNB_ID {
- return fmt.Errorf("invalid value for %s, eNBIdBitqty: %d", ENV_RIC_ID, eNBIdBitqty)
+ err = h.e2tAssociationManager.AssociateRan(e2tAddress, nodebInfo.RanName)
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectExistingRanWithoutAssociatedE2TAddress - RAN name: %s - failed associating ran to e2t address %s. error: %s", nodebInfo.RanName, e2tAddress, err)
+ return err
}
- return nil
+ h.logger.Infof("#SetupRequestHandler.connectExistingRanWithoutAssociatedE2TAddress - RAN name: %s - successfully updated nodeb in rNib", nodebInfo.RanName)
+
+ result := h.ranSetupManager.ExecuteSetup(nodebInfo, entities.ConnectionStatus_CONNECTING)
+ return result
}
-//TODO: remove Get
-func (SetupRequestHandler) GetMessageType() int {
- return rmrCgo.RIC_X2_SETUP_REQ
+func (h *SetupRequestHandler) connectExistingRanWithAssociatedE2TAddress(nodebInfo *entities.NodebInfo) error {
+ status := entities.ConnectionStatus_CONNECTING
+ if nodebInfo.ConnectionStatus == entities.ConnectionStatus_CONNECTED {
+ status = nodebInfo.ConnectionStatus
+ }
+ nodebInfo.ConnectionAttempts = 0
+ err := h.rNibDataService.UpdateNodebInfo(nodebInfo)
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectExistingRanWithAssociatedE2TAddress - RAN name: %s - failed resetting connection attempts of RAN. error: %s", nodebInfo.RanName, err)
+ return e2managererrors.NewRnibDbError()
+ }
+
+ h.logger.Infof("#SetupRequestHandler.connectExistingRanWithAssociatedE2TAddress - RAN name: %s - successfully reset connection attempts of RAN", nodebInfo.RanName)
+
+ result := h.ranSetupManager.ExecuteSetup(nodebInfo, status)
+ return result
}
-func init() {
- var err error
- ricId := os.Getenv(ENV_RIC_ID)
- //ricId="bbbccc-ffff0e/20"
- //ricId="bbbccc-abcd0e/20"
- if err = parseRicID(ricId); err != nil {
- panic(err)
+func (h *SetupRequestHandler) connectNewRan(request *models.SetupRequest, protocol entities.E2ApplicationProtocol) error {
+
+ e2tAddress, err := h.e2tInstancesManager.SelectE2TInstance()
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectNewRan - RAN name: %s - failed selecting E2T instance", request.RanName)
+ return err
}
- e2pdus.PackedEndcX2setupRequest,e2pdus.PackedEndcX2setupRequestAsString, err = e2pdus.PreparePackedEndcX2SetupRequest(MaxAsn1PackedBufferSize, MaxAsn1CodecMessageBufferSize,pLMNId, eNBId, eNBIdBitqty, ricFlag )
- if err != nil{
- panic(err)
+ nodebInfo, nodebIdentity := createInitialNodeInfo(request, protocol, e2tAddress)
+
+ err = h.rNibDataService.SaveNodeb(nodebIdentity, nodebInfo)
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectNewRan - RAN name: %s - failed to save initial nodeb entity in RNIB. error: %s", request.RanName, err)
+ return e2managererrors.NewRnibDbError()
+ }
+
+ h.logger.Infof("#SetupRequestHandler.connectNewRan - RAN name: %s - initial nodeb entity was saved to rNib", request.RanName)
+
+ err = h.e2tAssociationManager.AssociateRan(e2tAddress, request.RanName)
+
+ if err != nil {
+ h.logger.Errorf("#SetupRequestHandler.connectNewRan - RAN name: %s - failed associating ran to e2t address %s. error: %s", request.RanName, e2tAddress, err)
+ return err
}
- e2pdus.PackedX2setupRequest,e2pdus.PackedX2setupRequestAsString, err = e2pdus.PreparePackedX2SetupRequest(MaxAsn1PackedBufferSize, MaxAsn1CodecMessageBufferSize,pLMNId, eNBId, eNBIdBitqty, ricFlag )
- if err != nil{
- panic(err)
+
+ result := h.ranSetupManager.ExecuteSetup(nodebInfo, entities.ConnectionStatus_CONNECTING)
+
+ return result
+}
+
+func (handler *SetupRequestHandler) validateRequestDetails(request models.SetupRequest) error {
+
+ if request.RanPort == 0 {
+ handler.logger.Errorf("#SetupRequestHandler.validateRequestDetails - validation failure: port cannot be zero")
+ return e2managererrors.NewRequestValidationError()
+ }
+ err := validation.ValidateStruct(&request,
+ validation.Field(&request.RanIp, validation.Required, is.IP),
+ validation.Field(&request.RanName, validation.Required),
+ )
+
+ if err != nil {
+ handler.logger.Errorf("#SetupRequestHandler.validateRequestDetails - validation failure, error: %v", err)
+ return e2managererrors.NewRequestValidationError()
+ }
+
+ return nil
+}
+
+func (handler *SetupRequestHandler) getActivityName(protocol entities.E2ApplicationProtocol) string {
+ if protocol == entities.E2ApplicationProtocol_X2_SETUP_REQUEST {
+ return X2SetupActivityName
}
+ return EndcSetupActivityName
}
Code Review / ric-plt / e2mgr.git / blobdiff