X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=E2Manager%2Fservices%2Frmr_service.go;fp=E2Manager%2Fservices%2Frmr_service.go;h=5a8be8b3d5695e31885429eb8cd200d7dff69fdf;hb=07ef76dd471a0892a893c90e0ab06713aee34be1;hp=0000000000000000000000000000000000000000;hpb=59f84608ec15c016958a6e0e0ddd813f376c0925;p=ric-plt%2Fe2mgr.git

diff --git a/E2Manager/services/rmr_service.go b/E2Manager/services/rmr_service.go
new file mode 100644
index 0000000..5a8be8b
--- /dev/null
+++ b/E2Manager/services/rmr_service.go
@@ -0,0 +1,137 @@
+//
+// Copyright 2019 AT&T Intellectual Property
+// Copyright 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.
+//
+
+package services
+
+import (
+	"e2mgr/logger"
+	"e2mgr/managers"
+	"e2mgr/models"
+	"e2mgr/rmrCgo"
+	"e2mgr/sessions"
+	"strconv"
+	"sync"
+)
+
+
+type RmrConfig struct {
+	Port       int
+	MaxMsgSize int
+	Flags      int
+	Logger     *logger.Logger
+}
+
+func NewRmrConfig(port int, maxMsgSize int, flags int, logger *logger.Logger) *RmrConfig {
+	return &RmrConfig{port, maxMsgSize, flags, logger}
+}
+
+// RmrService holds an instance of RMR messenger as well as its configuration
+type RmrService struct {
+	config     *RmrConfig
+	messenger  *rmrCgo.RmrMessenger
+	e2sessions sessions.E2Sessions
+	nManager   *managers.NotificationManager
+	rmrResponse chan *models.NotificationResponse
+}
+
+// NewRmrService instantiates a new Rmr service instance
+func NewRmrService(rmrConfig *RmrConfig, msrImpl rmrCgo.RmrMessenger, e2sessions sessions.E2Sessions, nManager *managers.NotificationManager,
+	rmrResponse chan *models.NotificationResponse) *RmrService {
+
+	return &RmrService{
+		config:     rmrConfig,
+		messenger:  msrImpl.Init("tcp:"+strconv.Itoa(rmrConfig.Port), rmrConfig.MaxMsgSize, rmrConfig.Flags, rmrConfig.Logger),
+		e2sessions: e2sessions,
+		nManager:   nManager,
+		rmrResponse: rmrResponse,
+	}
+}
+
+func (r *RmrService) SendMessage(messageType int, messageChannel chan *models.E2RequestMessage, errorChannel chan error,
+	wg sync.WaitGroup) {
+
+	wg.Add(1)
+	setupRequestMessage := <-messageChannel
+	e2Message := setupRequestMessage.GetMessageAsBytes(r.config.Logger)
+
+	transactionId := []byte(setupRequestMessage.TransactionId())
+
+	msg := rmrCgo.NewMBuf(messageType, len(e2Message)/*r.config.MaxMsgSize*/, setupRequestMessage.RanName(), &e2Message, &transactionId)
+
+	r.config.Logger.Debugf("#rmr_service.SendMessage - Going to send the message: %#v\n", msg)
+	_, err := (*r.messenger).SendMsg(msg, r.config.MaxMsgSize)
+
+	errorChannel <- err
+	wg.Done()
+}
+
+func (r *RmrService) SendRmrMessage(response *models.NotificationResponse) {
+
+	msgAsBytes := response.GetMessageAsBytes(r.config.Logger)
+	transactionIdByteArr := []byte(response.RanName)
+
+	msg := rmrCgo.NewMBuf(response.MgsType, len(msgAsBytes), response.RanName, &msgAsBytes, &transactionIdByteArr)
+
+	r.config.Logger.Debugf("#rmr_service.SendRmrMessage - Going to send the message: %#v\n", msg)
+
+	_, err := (*r.messenger).SendMsg(msg, r.config.MaxMsgSize)
+
+	if err != nil {
+		r.config.Logger.Errorf("#rmr_service.SendRmrMessage - error: %#v\n", err)
+		return
+	}
+}
+
+// ListenAndHandle waits for messages coming from rmr_rcv_msg and sends it to a designated message handler
+func (r *RmrService) ListenAndHandle() {
+
+	for {
+		mbuf, err := (*r.messenger).RecvMsg()
+		r.config.Logger.Debugf("#rmr_service.ListenAndHandle - Going to handle received message: %#v\n", mbuf)
+
+		// TODO: one mbuf received immediately execute goroutine
+		if err != nil {
+			continue	//TODO log error
+		}
+
+		r.nManager.HandleMessage(r.config.Logger, r.e2sessions, mbuf, r.rmrResponse)
+	}
+}
+
+func (r *RmrService) SendResponse(){
+	for{
+
+		response, ok := <-r.rmrResponse
+		if !ok {
+
+			r.config.Logger.Errorf("#rmr_service.SendResponse - channel closed")
+			break
+		}
+
+		r.config.Logger.Debugf("#rmr_service.SendResponse - Going to send message: %#v\n", response)
+		r.SendRmrMessage(response)
+	}
+}
+
+func (r *RmrService) CloseContext() {
+	if r.config.Logger.DebugEnabled(){
+		r.config.Logger.Debugf("#rmr_service.CloseContext - RMR is ready: %v", (*r.messenger).IsReady())
+		(*r.messenger).Close()
+		r.config.Logger.Debugf("#rmr_service.CloseContext - RMR is ready: %v", (*r.messenger).IsReady())
+	}
+}
+