Simple grupttor example

simpleGrupttorExample.go

package main

import (
	"fmt"
	"github.com/PragGoLabs/grupttor"
	"github.com/PragGoLabs/grupttor/handlers"
	"github.com/PragGoLabs/grupttor/hooks"
	"os"
	"syscall"
	"time"
)

func main() {
  // you init interruptor, called gruptor :-)
	interruptor := grupttor.NewGrupttor(
    // pass handle wrap 
		handlers.NewWrapHandler(
      // the interrupt handler, which is called first
      // when the interruption is passed
			func(interrupter *grupttor.Grupttor) error {
				fmt.Println("Received interrupt signal")
				time.Sleep(4*time.Second)

				return interrupter.Stop()
			},
      // the stop handler
      // run based by interrupt handler
      // you've to call when you have done everything
			func(interrupter *grupttor.Grupttor) error {
				// exit application
				os.Exit(0)

				return nil
			},
		),
		[]grupttor.Hook{},
	)
  // add the hook
  // this is on of the basic hooks, system interrupt, based by system calls
  // you can specify concrete signals
	interruptor.AddHook(hooks.NewSystemInterruptHook([]os.Signal{syscall.SIGKILL, syscall.SIGTERM}))

  // and start goroutine on backend, which will wait for signals and handle all the logic
	go interruptor.StartAndWait()

  // infinite loop, just for example
	for {
		time.Sleep(2*time.Second)

		fmt.Println("Running loop and waiting for kill or sigterm")
	}
}