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main.go
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main.go
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package main
import (
"context"
_ "embed"
"fmt"
"io"
"os"
"os/signal"
"path"
"strings"
"github.com/iot-for-all/iiot-oee/pkg/models"
"github.com/iot-for-all/iiot-oee/pkg/simulating"
"github.com/rs/zerolog"
"github.com/rs/zerolog/log"
"github.com/spf13/viper"
"gopkg.in/natefinch/lumberjack.v2"
)
func main() {
// handle process exit gracefully
sig := make(chan os.Signal, 1)
signal.Notify(sig, os.Interrupt)
ctx := context.Background()
ctx, cancel := context.WithCancel(ctx)
defer func() {
// Close the os signal channel to prevent any leak.
signal.Stop(sig)
}()
// load configuration and initialize logger
cfg, err := loadConfig()
if err != nil {
panic(fmt.Errorf("failed to initialize configuration. %w", err))
}
initLogger(cfg)
// start devices
for _, plant := range cfg.Plant {
log.Debug().Str("plant", plant.Name).Msg("Starting up plant")
for i := 1; i <= plant.BoltMachine.Count; i++ {
log.Debug().Int("BoltMachine", i).Msg("Starting up bolt machine")
deviceID := fmt.Sprintf("%s-BoltMachine-%d", plant.Name, i)
boltMachine := models.BoltMachine{
PlantName: plant.Name,
ProductionLine: fmt.Sprintf("ProductionLine %d", i),
ShiftNumber: 0,
BatchNumber: 0,
TotalPartsMade: 0,
DefectivePartsMade: 0,
MachineHealth: "Healthy",
OilLevel: 100,
Temperature: 100,
CpuLoad: 50.0,
SystemDiskUsedPercent: 50.0,
SystemDiskFreePercent: 50.0,
MemoryUsed: 56 * 1024 * 1024,
MemoryFree: 200 * 1024 * 1024,
Format: plant.BoltMachine.Format,
}
device := simulating.NewDevice(ctx, &cfg.Application, deviceID, &boltMachine)
// start the device simulation
go device.Start()
}
}
// Wait signal / cancellation
<-sig
cancel() // Wait for device to completely shut down.
}
// loadConfig loads the configuration file
func loadConfig() (*config, error) {
colorReset := "\033[0m"
//colorRed := "\033[31m"
colorGreen := "\033[32m"
//colorYellow := "\033[33m"
colorBlue := "\033[34m"
//colorPurple := "\033[35m"
//colorCyan := "\033[36m"
//colorWhite := "\033[37m"
fmt.Printf(string(colorGreen))
fmt.Printf(`
██╗██╗ ██████╗ ████████╗ ██████╗ ███████╗███████╗
██║██║██╔═══██╗╚══██╔══╝ ██╔═══██╗██╔════╝██╔════╝
██║██║██║ ██║ ██║ ██║ ██║█████╗ █████╗
██║██║██║ ██║ ██║ ██║ ██║██╔══╝ ██╔══╝
██║██║╚██████╔╝ ██║ ╚██████╔╝███████╗███████╗
╚═╝╚═╝ ╚═════╝ ╚═╝ ╚═════╝ ╚══════╝╚══════╝
`)
fmt.Printf(string(colorBlue))
fmt.Printf(" PARNELL AEROSPACE USING IOT CENTRAL\n")
fmt.Printf(string(colorReset))
viper.SetConfigName("iiotoee")
viper.SetConfigType("json")
viper.AddConfigPath(".")
viper.AddConfigPath("./bin")
viper.AutomaticEnv()
if err := viper.ReadInConfig(); err != nil {
if _, ok := err.(viper.ConfigFileNotFoundError); ok {
fmt.Print(`Add a configuration file (iiotoee.json) with the file contents below:
{
"logger": {
"logLevel": "Debug",
"logsDir": "./logs"
},
"application": {
"provisioningUrl": "global.azure-devices-provisioning.net",
"idScope": "CHANGE THIS -- YOUR_APP_IDSCOPE",
"masterKey": "CHANGE THIS -- DPS Master key",
"boltMachineModelID": "dtmi:parnellAerospace:BoltMakerV1;1"
},
"plant": [
{
"name": "Everett",
"boltMachine":{
"count": 2,
"format": "json"
}
},
{
"name": "Austin",
"boltMachine":{
"count": 1,
"format": "json"
}
},
{
"name": "Atlanta",
"boltMachine":{
"count": 1,
"format": "json"
}
}
]
}
\n`)
return nil, err
}
}
cfg := newConfig()
if err := viper.Unmarshal(cfg); err != nil {
return nil, err
}
//fmt.Printf("loaded configuration from %s\n", viper.ConfigFileUsed())
return cfg, nil
}
// initLogger initializes the logger with output format
func initLogger(cfg *config) {
var writers []io.Writer
writers = append(writers, zerolog.ConsoleWriter{Out: os.Stderr, TimeFormat: "15:04:05"})
fileLoggingEnabled := false
if len(cfg.Logger.LogsDir) > 0 {
fileLoggingEnabled = true
}
if fileLoggingEnabled {
logsDir := cfg.Logger.LogsDir
if err := os.MkdirAll(logsDir, 0744); err != nil {
fmt.Printf("can't create log directory, so file logging is disabled, error: %s", err.Error())
} else {
fileWriter := &lumberjack.Logger{
Filename: path.Join(logsDir, "iiotoee.log"),
MaxBackups: 3, // files
MaxSize: 10, // megabytes
MaxAge: 30, // days
}
writers = append(writers, fileWriter)
//fmt.Printf("file logging is enabled, logsDir: %s\n", logsDir)
}
}
mw := io.MultiWriter(writers...)
log.Logger = zerolog.New(mw).With().Timestamp().Logger()
//log.Logger = log.Output(zerolog.ConsoleWriter{Out: os.Stderr, TimeFormat: "15:04:05"})
switch strings.ToLower(cfg.Logger.LogLevel) {
case "panic":
zerolog.SetGlobalLevel(zerolog.PanicLevel)
case "fatal":
zerolog.SetGlobalLevel(zerolog.FatalLevel)
case "error":
zerolog.SetGlobalLevel(zerolog.ErrorLevel)
case "warn":
zerolog.SetGlobalLevel(zerolog.WarnLevel)
case "info":
zerolog.SetGlobalLevel(zerolog.InfoLevel)
case "trace":
zerolog.SetGlobalLevel(zerolog.TraceLevel)
default:
zerolog.SetGlobalLevel(zerolog.DebugLevel)
}
}