Seed code for Routing Manager (ric-plt/rtmgr).

[ric-plt/rtmgr.git] / pkg / sbi / nngpub.go

diff --git a/pkg/sbi/nngpub.go b/pkg/sbi/nngpub.go
new file mode 100644 (file)
index 0000000..02e4ebf
--- /dev/null
+++ b/pkg/sbi/nngpub.go
@@ -0,0 +1,68 @@
+/*
+==================================================================================
+  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.
+==================================================================================
+*/
+/*
+  Mnemonic:    nngpub.go
+  Abstract:    mangos (NNG) Pub/Sub SBI implementation
+  Date:                12 March 2019
+*/
+
+package sbi
+
+import (
+       "errors"
+       "nanomsg.org/go/mangos/v2"
+       "nanomsg.org/go/mangos/v2/protocol/pub"
+       _ "nanomsg.org/go/mangos/v2/transport/all"
+       "rtmgr"
+       "strconv"
+)
+
+var sock mangos.Socket
+
+/*
+Creates the NNG publication channel
+*/
+func openNngPub(url string) error {
+       var err error
+       if sock, err = pub.NewSocket(); err != nil {
+               return errors.New("can't get new pub socket due to:" + err.Error())
+       }
+       rtmgr.Logger.Info("publishing on: " + url)
+       if err = sock.Listen(url); err != nil {
+               return errors.New("can't publish on socket " + url + " due to:" + err.Error())
+       }
+       return nil
+}
+
+func closeNngPub() error {
+       if err := sock.Close(); err != nil {
+               return errors.New("can't close socket due to:" + err.Error())
+       }
+       return nil
+}
+
+func publishAll(policies *[]string) error {
+       for _, pe := range *policies {
+               if err := sock.Send([]byte(pe)); err != nil {
+                       return errors.New("Unable to send policy entry due to: " + err.Error())
+               }
+       }
+       rtmgr.Logger.Info("NNG PUB: OK (# of Entries:" + strconv.Itoa(len((*policies))) + ")")
+       return nil
+}