Examples of org.fusesource.mqtt.client.Topic

org.fusesource.mqtt.client.Topic
irino.com">Hiram Chirino

        assertTrue(connect.cleanSession());


        frames.clear();


        SUBSCRIBE subscribe = new SUBSCRIBE();
        subscribe.topics(new Topic[] {new Topic("TEST", QoS.EXACTLY_ONCE) });


        output = new DataByteArrayOutputStream();
        wireFormat.marshal(subscribe.encode(), output);
        marshalled = output.toBuffer();

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                return connection.isConnected();
            }
        });


        final String TOPIC = "TopicA";
        final byte[] qos = connection.subscribe(new Topic[] { new Topic(TOPIC, QoS.EXACTLY_ONCE) });
        assertEquals(QoS.EXACTLY_ONCE.ordinal(), qos[0]);
        connection.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        // kill transport
        connection.kill();

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        final String CLIENTID = "cleansession";
        final MQTT mqttNotClean = createMQTTConnection(CLIENTID, false);
        BlockingConnection notClean = mqttNotClean.blockingConnection();
        final String TOPIC = "TopicA";
        notClean.connect();
        notClean.subscribe(new Topic[] { new Topic(TOPIC, QoS.EXACTLY_ONCE) });
        notClean.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        notClean.disconnect();


        // MUST receive message from previous not clean session
        notClean = mqttNotClean.blockingConnection();
        notClean.connect();
        Message msg = notClean.receive(10000, TimeUnit.MILLISECONDS);
        assertNotNull(msg);
        assertEquals(TOPIC, new String(msg.getPayload()));
        msg.ack();
        notClean.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        notClean.disconnect();


        // MUST NOT receive message from previous not clean session
        final MQTT mqttClean = createMQTTConnection(CLIENTID, true);
        final BlockingConnection clean = mqttClean.blockingConnection();
        clean.connect();
        msg = clean.receive(10000, TimeUnit.MILLISECONDS);
        assertNull(msg);
        clean.subscribe(new Topic[] { new Topic(TOPIC, QoS.EXACTLY_ONCE) });
        clean.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        clean.disconnect();


        // MUST NOT receive message from previous clean session
        notClean = mqttNotClean.blockingConnection();

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        mqtt.setKeepAlive((short) 2);
        BlockingConnection connection = mqtt.blockingConnection();
        connection.connect();


        final String DOLLAR_TOPIC = "$TopicA";
        connection.subscribe(new Topic[] { new Topic(DOLLAR_TOPIC, QoS.EXACTLY_ONCE)});
        connection.publish(DOLLAR_TOPIC, DOLLAR_TOPIC.getBytes(), QoS.EXACTLY_ONCE, true);


        Message message = connection.receive(10, TimeUnit.SECONDS);
        assertNull("Publish enabled for $ Topics by default", message);
        connection.disconnect();


        stopBroker();
        protocolConfig = "transport.publishDollarTopics=true";
        startBroker();


        mqtt = createMQTTConnection();
        mqtt.setClientId(clientId);
        mqtt.setKeepAlive((short) 2);
        connection = mqtt.blockingConnection();
        connection.connect();


        connection.subscribe(new Topic[] { new Topic(DOLLAR_TOPIC, QoS.EXACTLY_ONCE)});
        connection.publish(DOLLAR_TOPIC, DOLLAR_TOPIC.getBytes(), QoS.EXACTLY_ONCE, true);


        message = connection.receive(10, TimeUnit.SECONDS);
        assertNotNull(message);
        message.ack();

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        mqtt.setCleanSession(false);


        final BlockingConnection connection = mqtt.blockingConnection();
        connection.connect();


        Topic[] topics = { new Topic("Topic/A", QoS.EXACTLY_ONCE), new Topic("Topic/B", QoS.EXACTLY_ONCE) };
        Topic[] wildcardTopic = { new Topic("Topic/#", QoS.AT_LEAST_ONCE) };
        connection.subscribe(wildcardTopic);


        for (Topic topic : topics) {
            connection.publish(topic.name().toString(), payload, QoS.AT_LEAST_ONCE, false);
        }

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        connectionPub.connect();


        BlockingConnection connectionSub = mqttSub.blockingConnection();
        connectionSub.connect();


        Topic[] topics = { new Topic("TopicA", QoS.EXACTLY_ONCE) };
        connectionSub.subscribe(topics);


        for (int i = 0; i < messagesPerRun; ++i) {
            connectionPub.publish(topics[0].name().toString(), payload, QoS.AT_LEAST_ONCE, false);
        }

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            payload[i] = '2';
        }


        int messagesPerRun = 10;


        Topic[] topics = { new Topic("TopicA", QoS.EXACTLY_ONCE) };


        {
            // Establish a durable subscription.
            MQTT mqttSub = createMQTTConnection("MQTT-Sub-Client", false);
            BlockingConnection connectionSub = mqttSub.blockingConnection();

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        }
    }


    @Test(timeout = 60 * 1000)
    public void testNoMessageReceivedAfterUnsubscribeMQTT() throws Exception {
        Topic[] topics = { new Topic("TopicA", QoS.EXACTLY_ONCE) };


        MQTT mqttPub = createMQTTConnection("MQTTPub-Client", true);
        // mqttPub.setVersion("3.1.1");


        MQTT mqttSub = createMQTTConnection("MQTTSub-Client", false);

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        final String NONRETAINED = "NONRETAINED";
        connection.publish("one", NONRETAINED.getBytes(), QoS.AT_LEAST_ONCE, false);
        connection.publish("two", NONRETAINED.getBytes(), QoS.AT_LEAST_ONCE, false);


        connection.subscribe(new Topic[]{new Topic("#", QoS.AT_LEAST_ONCE)});
        for (int i = 0; i < 4; i++) {
            final Message message = connection.receive(30, TimeUnit.SECONDS);
            assertNotNull("Should receive 4 messages", message);
            message.ack();
        }

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        connection.publish(topic,payload, QoS.values()[qos],retained);
    }


    @Override
    public void subscribe(String topic, int qos) throws Exception {
        Topic[] topics = {new Topic(utf8(topic), QoS.values()[qos])};
        connection.subscribe(topics);
    }

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