Merge "NONRTRIC - Implement DMaaP mediator producer service in Java"
[nonrtric.git] / dmaap-mediator-producer / main.go
1 // -
2 //   ========================LICENSE_START=================================
3 //   O-RAN-SC
4 //   %%
5 //   Copyright (C) 2021: Nordix Foundation
6 //   %%
7 //   Licensed under the Apache License, Version 2.0 (the "License");
8 //   you may not use this file except in compliance with the License.
9 //   You may obtain a copy of the License at
10 //
11 //        http://www.apache.org/licenses/LICENSE-2.0
12 //
13 //   Unless required by applicable law or agreed to in writing, software
14 //   distributed under the License is distributed on an "AS IS" BASIS,
15 //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 //   See the License for the specific language governing permissions and
17 //   limitations under the License.
18 //   ========================LICENSE_END===================================
19 //
20
21 package main
22
23 import (
24         "fmt"
25         "net/http"
26         "sync"
27
28         log "github.com/sirupsen/logrus"
29         "oransc.org/nonrtric/dmaapmediatorproducer/internal/config"
30         "oransc.org/nonrtric/dmaapmediatorproducer/internal/jobs"
31         "oransc.org/nonrtric/dmaapmediatorproducer/internal/server"
32 )
33
34 var configuration *config.Config
35 var callbackAddress string
36
37 func init() {
38         configuration = config.New()
39         if loglevel, err := log.ParseLevel(configuration.LogLevel); err == nil {
40                 log.SetLevel(loglevel)
41         } else {
42                 log.Warnf("Invalid log level: %v. Log level will be Info!", configuration.LogLevel)
43         }
44
45         log.Debug("Initializing DMaaP Mediator Producer")
46         if configuration.InfoProducerHost == "" {
47                 log.Fatal("Missing INFO_PRODUCER_SUPERVISION_CALLBACK_HOST")
48         }
49         callbackAddress = fmt.Sprintf("%v:%v", configuration.InfoProducerHost, configuration.InfoProducerPort)
50
51         registrator := config.NewRegistratorImpl(configuration.InfoCoordinatorAddress)
52         if types, err := jobs.GetTypes(); err == nil {
53                 if regErr := registrator.RegisterTypes(types); regErr != nil {
54                         log.Fatalf("Unable to register all types due to: %v", regErr)
55                 }
56         } else {
57                 log.Fatalf("Unable to get types to register due to: %v", err)
58         }
59         producer := config.ProducerRegistrationInfo{
60                 InfoProducerSupervisionCallbackUrl: callbackAddress + server.StatusCallbackPath,
61                 SupportedInfoTypes:                 jobs.GetSupportedTypes(),
62                 InfoJobCallbackUrl:                 callbackAddress + server.JobsCallbackPath,
63         }
64         if err := registrator.RegisterProducer("DMaaP_Mediator_Producer", &producer); err != nil {
65                 log.Fatalf("Unable to register producer due to: %v", err)
66         }
67 }
68
69 func main() {
70         log.Debug("Starting DMaaP Mediator Producer")
71         wg := new(sync.WaitGroup)
72
73         // add two goroutines to `wg` WaitGroup, one for each running go routine
74         wg.Add(2)
75
76         log.Debugf("Starting callback server at port %v", configuration.InfoProducerPort)
77         go func() {
78                 http.HandleFunc(server.StatusCallbackPath, server.StatusHandler)
79                 http.HandleFunc(server.JobsCallbackPath, server.CreateInfoJobHandler)
80                 log.Warn(http.ListenAndServe(fmt.Sprintf(":%v", configuration.InfoProducerPort), nil))
81                 wg.Done()
82         }()
83
84         go func() {
85                 jobs.RunJobs(fmt.Sprintf("%v:%v", configuration.MRHost, configuration.MRPort))
86                 wg.Done()
87         }()
88
89         // wait until WaitGroup is done
90         wg.Wait()
91         log.Debug("Stopping DMaaP Mediator Producer")
92 }