CommandBus轻量级的 Command Bus 的实现

CommandBus 是一个轻量级的 Command Bus 的实现，用 Swift 编写。

使用：

{
    "{CommandNameA}": "{CommandHandlerNameA}",
    "{CommandNameB}": "{CommandHandlerNameB}",
    "{CommandNameC}": "{CommandHandlerNameC}"
}

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        /*** Register to the Command event ***/
        NSNotificationCenter.defaultCenter().addObserver(self, selector: "onCommandHandled:", name:"COMMAND_DONE", object: nil)
        /*** Create the CommandBus ***/
        let commandBus: CommandBus = CommandBus(configurationFileName: "configuration")!
        /*** Create your own CommandHandler ***/
        let customCommand: CustomCommand = CustomCommand()
        /*** Send your commandHandler to the CommandBus with your event name ***/
        commandBus.handle(command: customCommand, commandHandledEvent: "COMMAND_DONE")
    }
    func onCommandHandled(notification: NSNotification) {
        /*** This method is called when the CommandHandler have done ***/
        print("Command Handled: \(notification.object!)")
    }
}