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mock.go
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mock.go
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/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*
* Copyright (c) 2023-present, Ukama Inc.
*/
package main
import (
"fmt"
"syscall"
"os"
"os/signal"
"time"
"github.com/ukama/ukama/systems/common/msgbus"
"github.com/ukama/ukama/testing/services/factory/internal"
spec "github.com/ukama/ukama/testing/services/factory/specs/factory/spec"
log "github.com/sirupsen/logrus"
"github.com/streadway/amqp"
"github.com/ukama/ukama/systems/common/config"
"google.golang.org/protobuf/proto"
)
var mockMsgClient msgbus.IMsgBus
var mockHandlerName = "MockClient"
/* Init read config */
func initConfig() {
log.Infof("Initializing config")
internal.ServiceConfig = internal.NewConfig()
config.LoadConfig(internal.ServiceName, internal.ServiceConfig)
}
// Msgbus initialization
func initMsgBus() {
mockMsgClient, err := msgbus.NewConsumerClient(internal.ServiceConfig.RabbitUri)
if err != nil {
failOnError(err, "Could not create a consumer. Error %s"+err.Error())
}
// Routing key
routingKeys := []msgbus.RoutingKey{msgbus.EventVirtNodeUpdateStatus}
log.Debugf("Mock:: msgClient: %+v", mockMsgClient)
// Subscribe to exchange
err = mockMsgClient.Subscribe(msgbus.DeviceQ.Queue, msgbus.DeviceQ.Exchange, msgbus.DeviceQ.ExchangeType, routingKeys, mockHandlerName, EvtMsgHandlerCB)
failOnError(err, "Could not start subscribe to "+msgbus.DeviceQ.Exchange+msgbus.DeviceQ.ExchangeType)
}
// Handle Response message
func EvtMsgHandlerCB(d amqp.Delivery, done chan<- bool) {
log.Debugf("Mock::Event message handler for the mock %s msg: %v", d.RoutingKey, d)
// unmarshal
switch msgbus.RoutingKey(d.RoutingKey) {
// Add Device Response
case msgbus.EventVirtNodeUpdateStatus:
evtMsg := &spec.EvtUpdateVirtnode{}
err := proto.Unmarshal(d.Body, evtMsg)
if err != nil {
log.Errorf("Mock::Fail unmarshal: %s", d.Body)
}
/* Processing for the event can be done here */
log.Debugf("Mock::Received event %s msg: %+v", msgbus.EventVirtNodeUpdateStatus, evtMsg)
}
done <- true
}
// main
func main() {
// Log level
log.SetLevel(log.TraceLevel)
log.Debugf("Mock::Starting mock services..!!\n")
// Read config
initConfig()
//Initialize msgbus
initMsgBus()
// Makes sure connection is closed when service exits.
handleSigterm(func() {
// Close connection
if mockMsgClient != nil {
mockMsgClient.Close()
}
})
for {
// Would wait for 5 seconds for reply
time.Sleep(5 * time.Second)
}
}
// Handles Ctrl+C or most other means of "controlled" shutdown gracefully.
// Invokes the supplied func before exiting.
func handleSigterm(handleExit func()) {
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
signal.Notify(c, syscall.SIGTERM)
go func() {
<-c
handleExit()
os.Exit(1)
}()
}
// Fatal error
func failOnError(err error, msg string) {
if err != nil {
log.Errorf("Mock:: %s: %s", msg, err)
panic(fmt.Sprintf("Mock:: %s: %s", msg, err))
}
}