func initBus() (bus *EventBus.EventBus) {
bus = EventBus.New()
bus.Subscribe(lib.NEW_MESSAGE_EVENT, persistMessage)
bus.Subscribe(lib.NEW_MESSAGE_EVENT, countMessage)
bus.Subscribe(lib.NEW_MESSAGE_EVENT, logMessage)
bus.Subscribe(lib.NEW_DEVICE_EVENT, logNewDevice)
return
}
func initEventBus() {
bus = EventBus.New()
log.Printf("Eventbus Initialized\n")
}
func main() {
bus := EventBus.New()
bus.Subscribe("main:calculator", calculator)
bus.Publish("main:calculator", 20, 40)
bus.Unsubscribe("main:calculator", calculator)
}
func main() {
if os.Getenv("DEBUG") == strconv.Itoa(1) {
log.SetStdoutThreshold(log.LevelDebug)
} else {
log.SetStdoutThreshold(log.LevelInfo)
}
log.INFO.Println("== Artemide - the docker building system ==")
log.INFO.Println("Engines starting")
var c int
var configurationFile string
var unpackImage string
var context *context.Context
var outputDir string
bus := evbus.New()
OptErr = 0
for {
if c = Getopt("o:u:c:h"); c == EOF {
break
}
switch c {
case 'u':
unpackImage = OptArg
case 'o':
outputDir = OptArg
case 'c':
configurationFile = OptArg
case 'h':
println("usage: " + os.Args[0] + " [-c config.toml -h]")
println("to just extract a docker image: " + os.Args[0] + " -u docker/image -o /my/uncompressed_rootfs")
os.Exit(1)
}
}
// Register hooks and recipes to the eventbus
for i := range plugin.Hooks {
log.DEBUG.Println("Registering", i, "hook to eventbus")
plugin.Hooks[i].Register(bus, context)
}
for i := range plugin.Recipes {
log.DEBUG.Println("Registering", i, "recipe to eventbus")
plugin.Recipes[i].Register(bus, context)
}
// Starting the bus show!
bus.Publish("artemide:start") // Emitting artemide:start event thru Recipes and Hooks.
// unpack mode.
if unpackImage != "" && outputDir != "" {
// Unpack mode, just unpack the image and exits.
log.INFO.Println("Unpack mode. Unpacking", unpackImage, "to", outputDir)
bus.Publish("artemide:source:docker", unpackImage, outputDir)
os.Exit(0)
}
// Halting if no configuration file is supplied
if configurationFile == "" {
log.ERROR.Fatalln("I can't work without a configuration file")
}
configuration, _ := config.LoadConfig(configurationFile)
log.DEBUG.Printf("%v\n", configuration)
//bus.Publish("artemide:source:"+configuration.Source.Type, configuration.Source.Image)
for artifactName, artifact := range configuration.Artifacts {
log.DEBUG.Printf("Artifact: %s \n", artifactName)
for recipeName, recipe := range artifact.Recipe {
log.DEBUG.Printf("Signaling -> Recipe %s <- to bus\n", recipeName)
bus.Publish("artemide:artifact:recipe:" + recipeName)
for eventsName, event := range recipe {
log.DEBUG.Printf("Signaling -> Event %s : (%s.%s)\n", eventsName, event.Name, event.Action)
//bus.Publish("artemide:artifact:recipe:"+recipeName+":event:"+event.Name, event.Action)
}
}
}
//bus.Publish("artemide:recipe:type", recipe_type)
}
// package pubsub provides a global publish and subscribe infrastructure
// for lantern
package pubsub
import (
"strconv"
"github.com/asaskevich/EventBus"
)
var (
bus = EventBus.New()
)
// The constant topics to publish and subscribe to. All topics should
// be defined here directly.
const (
Location = iota
// Someothertopic = iota
)
// Pub publishes the given interface to any listeners for that interface.
func Pub(topic int, data interface{}) {
bus.Publish(strconv.Itoa(topic), data)
}
// Sub subscribes to specific interfaces with the specified callback
// function.
func Sub(topic int, fn interface{}) error {
return bus.SubscribeAsync(strconv.Itoa(topic), fn, true)
}