X-Git-Url: https://gerrit.o-ran-sc.org/r/gitweb?a=blobdiff_plain;f=dmaap-mediator-producer%2Fmain.go;h=380087f3c495e185d6daeab9f9126b900a4cb050;hb=b3896f4ad7912be9e12c05e7d4770fa39752d797;hp=3fe92dca211514d2d15b4ff268d7fcffcb06f5c3;hpb=f0e49a07dad877f94f635dda4ab477b9636536c8;p=nonrtric.git

diff --git a/dmaap-mediator-producer/main.go b/dmaap-mediator-producer/main.go
index 3fe92dca..380087f3 100644
--- a/dmaap-mediator-producer/main.go
+++ b/dmaap-mediator-producer/main.go
@@ -21,77 +21,113 @@
 package main
 
 import (
+	"crypto/tls"
 	"fmt"
-	"sync"
+	"net/http"
+	"time"
 
+	"github.com/hashicorp/go-retryablehttp"
 	log "github.com/sirupsen/logrus"
 	"oransc.org/nonrtric/dmaapmediatorproducer/internal/config"
 	"oransc.org/nonrtric/dmaapmediatorproducer/internal/jobs"
+	"oransc.org/nonrtric/dmaapmediatorproducer/internal/restclient"
 	"oransc.org/nonrtric/dmaapmediatorproducer/internal/server"
 )
 
 var configuration *config.Config
-var supervisionCallbackAddress string
-var jobInfoCallbackAddress string
 
 func init() {
 	configuration = config.New()
-	if loglevel, err := log.ParseLevel(configuration.LogLevel); err == nil {
-		log.SetLevel(loglevel)
+}
+
+func main() {
+	log.SetLevel(configuration.LogLevel)
+	log.Debug("Initializing DMaaP Mediator Producer")
+	if err := validateConfiguration(configuration); err != nil {
+		log.Fatalf("Stopping producer due to error: %v", err)
+	}
+	callbackAddress := fmt.Sprintf("%v:%v", configuration.InfoProducerHost, configuration.InfoProducerPort)
+
+	var retryClient restclient.HTTPClient
+	if cert, err := createClientCertificate(); err == nil {
+		retryClient = createRetryClient(cert)
 	} else {
-		log.Warnf("Invalid log level: %v. Log level will be Info!", configuration.LogLevel)
+		log.Fatalf("Stopping producer due to error: %v", err)
 	}
 
-	log.Debug("Initializing DMaaP Mediator Producer")
-	if configuration.InfoProducerSupervisionCallbackHost == "" {
-		log.Fatal("Missing INFO_PRODUCER_SUPERVISION_CALLBACK_HOST")
+	jobsManager := jobs.NewJobsManagerImpl("configs/type_config.json", retryClient, configuration.DMaaPMRAddress, &http.Client{
+		Timeout: time.Second * 5,
+	})
+	if err := registerTypesAndProducer(jobsManager, configuration.InfoCoordinatorAddress, callbackAddress, retryClient); err != nil {
+		log.Fatalf("Stopping producer due to: %v", err)
 	}
-	supervisionCallbackAddress = fmt.Sprintf("%v:%v", configuration.InfoProducerSupervisionCallbackHost, configuration.InfoProducerSupervisionCallbackPort)
+	jobsManager.StartJobs()
 
-	if configuration.InfoJobCallbackHost == "" {
-		log.Fatal("Missing INFO_JOB_CALLBACK_HOST")
+	log.Debug("Starting DMaaP Mediator Producer")
+	go func() {
+		log.Debugf("Starting callback server at port %v", configuration.InfoProducerPort)
+		r := server.NewRouter(jobsManager)
+		log.Fatalf("Server stopped: %v", http.ListenAndServeTLS(fmt.Sprintf(":%v", configuration.InfoProducerPort), configuration.ProducerCertPath, configuration.ProducerKeyPath, r))
+	}()
+
+	keepProducerAlive()
+}
+
+func validateConfiguration(configuration *config.Config) error {
+	if configuration.InfoProducerHost == "" {
+		return fmt.Errorf("missing INFO_PRODUCER_HOST")
 	}
-	jobInfoCallbackAddress = fmt.Sprintf("%v:%v", configuration.InfoJobCallbackHost, configuration.InfoJobCallbackPort)
+	if configuration.ProducerCertPath == "" || configuration.ProducerKeyPath == "" {
+		return fmt.Errorf("missing PRODUCER_CERT and/or PRODUCER_KEY")
+	}
+	return nil
+}
 
-	registrator := config.NewRegistratorImpl(configuration.InfoCoordinatorAddress)
-	if types, err := jobs.GetTypes(); err == nil {
+func createClientCertificate() (*tls.Certificate, error) {
+	if cert, err := tls.LoadX509KeyPair(configuration.ProducerCertPath, configuration.ProducerKeyPath); err == nil {
+		return &cert, nil
+	} else {
+		return nil, fmt.Errorf("cannot create x509 keypair from cert file %s and key file %s due to: %v", configuration.ProducerCertPath, configuration.ProducerKeyPath, err)
+	}
+}
+
+func createRetryClient(cert *tls.Certificate) *http.Client {
+	rawRetryClient := retryablehttp.NewClient()
+	rawRetryClient.RetryWaitMax = time.Minute
+	rawRetryClient.RetryMax = int(^uint(0) >> 1)
+	rawRetryClient.HTTPClient.Transport = &http.Transport{
+		TLSClientConfig: &tls.Config{
+			Certificates: []tls.Certificate{
+				*cert,
+			},
+			InsecureSkipVerify: true,
+		},
+	}
+
+	return rawRetryClient.StandardClient()
+}
+
+func registerTypesAndProducer(jobHandler jobs.JobTypesManager, infoCoordinatorAddress string, callbackAddress string, client restclient.HTTPClient) error {
+	registrator := config.NewRegistratorImpl(infoCoordinatorAddress, client)
+	if types, err := jobHandler.LoadTypesFromConfiguration(); err == nil {
 		if regErr := registrator.RegisterTypes(types); regErr != nil {
-			log.Fatalf("Unable to register all types due to: %v", regErr)
+			return fmt.Errorf("unable to register all types due to: %v", regErr)
 		}
 	} else {
-		log.Fatalf("Unable to get types to register due to: %v", err)
+		return fmt.Errorf("unable to get types to register due to: %v", err)
 	}
 	producer := config.ProducerRegistrationInfo{
-		InfoProducerSupervisionCallbackUrl: supervisionCallbackAddress,
-		SupportedInfoTypes:                 jobs.GetSupportedTypes(),
-		InfoJobCallbackUrl:                 jobInfoCallbackAddress,
+		InfoProducerSupervisionCallbackUrl: callbackAddress + server.StatusPath,
+		SupportedInfoTypes:                 jobHandler.GetSupportedTypes(),
+		InfoJobCallbackUrl:                 callbackAddress + server.AddJobPath,
 	}
 	if err := registrator.RegisterProducer("DMaaP_Mediator_Producer", &producer); err != nil {
-		log.Fatalf("Unable to register producer due to: %v", err)
+		return fmt.Errorf("unable to register producer due to: %v", err)
 	}
+	return nil
 }
 
-func main() {
-	log.Debug("Starting DMaaP Mediator Producer")
-	wg := new(sync.WaitGroup)
-
-	// add two goroutines to `wg` WaitGroup, one for each avilable server
-	wg.Add(2)
-
-	log.Debugf("Starting status callback server at port %v", configuration.InfoProducerSupervisionCallbackPort)
-	go func() {
-		server := server.CreateServer(configuration.InfoProducerSupervisionCallbackPort, server.StatusHandler)
-		log.Warn(server.ListenAndServe())
-		wg.Done()
-	}()
-
-	go func() {
-		server := server.CreateServer(configuration.InfoJobCallbackPort, server.CreateInfoJobHandler)
-		log.Warn(server.ListenAndServe())
-		wg.Done()
-	}()
-
-	// wait until WaitGroup is done
-	wg.Wait()
-	log.Debug("Stopping DMaaP Mediator Producer")
+func keepProducerAlive() {
+	forever := make(chan int)
+	<-forever
 }