Set a preferred context

set_preferred_context

package main

import (
	"fmt"
	"os"

	"launchpad.net/go-dbus/v1"
)

func main() {

	if len(os.Args) != 3 {
		fmt.Println("Usage:", os.Args[0], "[service object path] [context]")
		os.Exit(1)
	}
	var conn *dbus.Connection
	var err error

	if conn, err = dbus.Connect(dbus.SessionBus); err != nil {
		fmt.Println("Connection error: ", err)
		os.Exit(1)
	}

	p := dbus.Variant{dbus.ObjectPath(os.Args[2])}
	obj := conn.Object("org.ofono.mms", dbus.ObjectPath(os.Args[1]))
	if _, err := obj.Call("org.ofono.mms.Service", "SetProperty", "PreferredContext", p); err != nil {
		fmt.Println("Cannot set property :", err)
		os.Exit(1)
	}
	fmt.Println("Property set to", os.Args[2], "for", os.Args[1])
}