Question

我正在为我的一个IoT应用程序试验Kaa事件子系统。我创建了一个事件类系列，并将其添加到其中一个项目中，将该属性保留为＆＃34; Both＆＃34;因为我想发送/接收两者。我的事件触发代码如下所示：

    DesktopKaaPlatformContext desktopKaaPlatformContext = new DesktopKaaPlatformContext();
    kaaClient = Kaa.newClient(desktopKaaPlatformContext, new SimpleKaaClientStateListener() {
        @Override
        public void onStarted() {
            System.out.println("--= Kaa client started =--");
        }

        @Override
        public void onStopped() {
            System.out.println("--= Kaa client stopped =--");
        }
    }, true);

    // Obtain the event family factory.
    final EventFamilyFactory eventFamilyFactory = kaaClient.getEventFamilyFactory();

    Random rnRandom = new Random();
    event1 = eventFamilyFactory.getEventClassFamilyDemo();

    DemoEventsCTL event = new DemoEventsCTL(rnRandom.nextBoolean());
    kaaClient.start();
    event.setMachineOn(rnRandom.nextBoolean());
    event1.sendEventToAll(event);
    System.out.println("Hello : Event : " + event.getMachineOn() + "has been addded");

    }

}

我的事件处理程序如下所示： DesktopKaaPlatformContext desktopKaaPlatformContext = new DesktopKaaPlatformContext（）;

    kaaClient = Kaa.newClient(desktopKaaPlatformContext, new SimpleKaaClientStateListener() {
        @Override
        public void onStarted() {
            LOG.info("--= Kaa client started =--");
        }

        @Override
        public void onStopped() {
            LOG.info("--= Kaa client stopped =--");
        }
    }, true);
    final EventFamilyFactory eventFamilyFactory = kaaClient.getEventFamilyFactory();
    event1 = eventFamilyFactory.getEventClassFamilyDemo();
    event1.addListener(new EventClassFamilyDemo.Listener() {
        @Override
        public void onEvent(DemoEventsCTL event, String source) {
              System.out.println(kaaClient.isAttachedToUser());
            System.out.println("The event received is :" + event.getMachineOn());

    });
    // Start the Kaa client and connect it to the Kaa server.
    kaaClient.start();
}

当我单独执行这些应用程序时，两者都运行时没有任何错误日志，我看到与服务器的连接成功。但是，我没有看到收到的已发送事件。代理会创建任何问题吗？如果有人以前尝试过，你能告诉我我是否遗漏了什么？

Answer 1

以下是我使用的两个Kaa客户端实现。一个发出事件，另一个消耗这些事件。您可以看到两个客户端都连接到同一个用户("testverifier", "82884822542100000000")。首先，我运行EventConsumer，以便在我启动它时准备好捕获EventEmitter发送的事件。

<强> EventConsumer

public class TestEventConsumer {

    private static KaaClient kaaClient;

    private static ScheduledExecutorService scheduledExecutorService;

    public static void main(final String[] args) {
        System.out.println(SampleEventListener.class.getSimpleName() + " Event Consumer Starting!");

        scheduledExecutorService = Executors.newScheduledThreadPool(1);

        // Create the Kaa desktop context for the application.
        final DesktopKaaPlatformContext desktopKaaPlatformContext = new DesktopKaaPlatformContext();
        kaaClient = Kaa.newClient(desktopKaaPlatformContext, new FirstKaaClientStateListener(), true);

        kaaClient.start();

        consumeEvents();

        System.out.println("--= Press any key to exit =--");
        try {
            System.in.read();
        } catch (final IOException e) {
            System.out.println("IOException has occurred: {}" + e.getMessage());
        }
        System.out.println("Stopping Event Consumer...");
        scheduledExecutorService.shutdown();
        kaaClient.stop();
    }

    private static class FirstKaaClientStateListener extends SimpleKaaClientStateListener {

        @Override
        public void onStarted() {
            super.onStarted();
            System.out.println("Kaa client (Event Consumer) started");
        }

        @Override
        public void onStopped() {
            super.onStopped();
            System.out.println("Kaa client (Event Consumer) stopped");
        }
    }

    public static void consumeEvents() {
        kaaClient.attachUser("testverifier", "82884822542100000000", new UserAttachCallback() {
            @Override
            public void onAttachResult(final UserAttachResponse response) {
                System.out.println("Attach response" + response.getResult());
            }
        });


        final EventFamilyFactory eventFamilyFactory = kaaClient.getEventFamilyFactory();
        final MyCustomECF myEcf = eventFamilyFactory.getMyCustomECF();

        myEcf.addListener(new MyCustomECF.Listener() {
            @Override
            public void onEvent(final MyCustomEvent event, final String source) {

                System.out.println("MyCustomEvent received from source : " + source + "Event Data Name : " + event.getName());

            }
        });
    }
}

<强> EventEmitter

public class TestEventEmitter {

    private static KaaClient kaaClient;

    private static ScheduledExecutorService scheduledExecutorService;

    public static void main(final String[] args) {

        scheduledExecutorService = Executors.newScheduledThreadPool(1);

        // Create the Kaa desktop context for the application.
        final DesktopKaaPlatformContext desktopKaaPlatformContext = new DesktopKaaPlatformContext();

        kaaClient = Kaa.newClient(desktopKaaPlatformContext, new FirstKaaClientStateListener(), true);

        kaaClient.start();
        attachUserandEmitEvents();

        System.out.println("--= Press any key to exit =--");
        try {
            System.in.read();
        } catch (final IOException e) {
            System.out.println("IOException has occurred: {}" + e.getMessage());
        }
        System.out.println("Stopping Event Emitter...");
        scheduledExecutorService.shutdown();
        kaaClient.stop();
    }

    private static void attachUserandEmitEvents() {
        // attach user
        kaaClient.attachUser("testverifier", "82884822542100000000", new UserAttachCallback() {
            @Override
            public void onAttachResult(final UserAttachResponse response) {
                final EventFamilyFactory eventFamilyFactory = kaaClient.getEventFamilyFactory();

                final MyCustomECF myEcf = eventFamilyFactory.getMyCustomECF();

                for (int i = 0; i < 5; i++) {
                    MyCustomEvent event = new MyCustomEvent();
                    event.setCustId("ID00" + i);
                    event.setName("Name - " + i);

                    myEcf.sendEventToAll(event);
                }               
            }
        });
    }

    private static class FirstKaaClientStateListener extends SimpleKaaClientStateListener {

        @Override
        public void onStarted() {
            super.onStarted();
            System.out.println("Kaa client (Event Emitter) started");
        }

        @Override
        public void onStopped() {
            super.onStopped();
            System.out.println("Kaa client (Event Emitter) stopped");
        }
    }
}

Kaa事件子系统无法正常工作

1 个答案: