Examples of org.fusesource.mqtt.client.Message

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


        QoS[] qoss = { QoS.AT_MOST_ONCE, QoS.AT_MOST_ONCE, QoS.AT_LEAST_ONCE, QoS.EXACTLY_ONCE };
        for (QoS qos : qoss) {
            connection.subscribe(new Topic[]{new Topic("TopicA", qos)});


            final Message msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No message for " + qos, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            int waitCount = 0;
            while (actualQoS[0] == -1 && waitCount < 10) {
                Thread.sleep(1000);
                waitCount++;
            }

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            connection.connect();


            // set retained message and check
            connection.publish(TOPICA, RETAIN.getBytes(), QoS.EXACTLY_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            Message msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            // test duplicate subscription
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(15000, TimeUnit.MILLISECONDS);
            assertNotNull("No retained message on duplicate subscription for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));
            connection.unsubscribe(new String[]{TOPICA});


            // clear retained message and check that we don't receive it
            connection.publish(TOPICA, "".getBytes(), QoS.AT_MOST_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(500, TimeUnit.MILLISECONDS);
            assertNull("Retained message not cleared for " + clientId, msg);
            connection.unsubscribe(new String[]{TOPICA});


            // set retained message again and check
            connection.publish(TOPICA, RETAIN.getBytes(), QoS.EXACTLY_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No reset retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            // re-connect and check
            connection.disconnect();
            connection = mqtt.blockingConnection();
            connection.connect();
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No reset retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            connection.unsubscribe(new String[]{TOPICA});
            connection.disconnect();
        }

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            connection.connect();


            // set retained message and check
            connection.publish(TOPICA, RETAIN.getBytes(), QoS.EXACTLY_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            Message msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            // test duplicate subscription
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(15000, TimeUnit.MILLISECONDS);
            assertNotNull("No retained message on duplicate subscription for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));
            connection.unsubscribe(new String[]{TOPICA});


            // clear retained message and check that we don't receive it
            connection.publish(TOPICA, "".getBytes(), QoS.AT_MOST_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(500, TimeUnit.MILLISECONDS);
            assertNull("Retained message not cleared for " + clientId, msg);
            connection.unsubscribe(new String[]{TOPICA});


            // set retained message again and check
            connection.publish(TOPICA, RETAIN.getBytes(), QoS.EXACTLY_ONCE, true);
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No reset retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            // re-connect and check
            connection.disconnect();
            connection = mqtt.blockingConnection();
            connection.connect();
            connection.subscribe(new Topic[]{new Topic(TOPICA, QoS.AT_LEAST_ONCE)});
            msg = connection.receive(5000, TimeUnit.MILLISECONDS);
            assertNotNull("No reset retained message for " + clientId, msg);
            assertEquals(RETAIN, new String(msg.getPayload()));
            msg.ack();
            assertNull(connection.receive(500, TimeUnit.MILLISECONDS));


            LOG.info("Test now unsubscribing from: {} for the last time", TOPICA);
            connection.unsubscribe(new String[]{TOPICA});
            connection.disconnect();

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        // publish non-retained message
        connection.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        int received = 0;


        Message msg = connection.receive(5000, TimeUnit.MILLISECONDS);
        do {
            assertNotNull(msg);
            assertEquals(TOPIC, new String(msg.getPayload()));
            msg.ack();
            int waitCount = 0;
            while (publishList.size() <= received && waitCount < 10) {
                Thread.sleep(1000);
                waitCount++;
            }

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            connection.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
        }


        // receive half the messages in this session
        for (int i = 0; i < TOTAL_MESSAGES / 2; i++) {
            final Message msg = connection.receive(1000, TimeUnit.MILLISECONDS);
            assertNotNull(msg);
            assertEquals(TOPIC, new String(msg.getPayload()));
            msg.ack();
        }


        connection.disconnect();
        // resume session
        connection = mqtt.blockingConnection();
        connection.connect();
        // receive rest of the messages
        Message msg = null;
        do {
            msg = connection.receive(1000, TimeUnit.MILLISECONDS);
            if (msg != null) {
                assertEquals(TOPIC, new String(msg.getPayload()));
                msg.ack();
            }
        } while (msg != null);


        // make sure we received all message ids
        for (short id = 1; id <= TOTAL_MESSAGES; id++) {

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            final String TOPIC = "TopicA/";
            connection.subscribe(new Topic[] { new Topic(TOPIC, QoS.EXACTLY_ONCE) });


            // publish non-retained message
            connection.publish(TOPIC, TOPIC.getBytes(), QoS.EXACTLY_ONCE, false);
            Message msg = connection.receive(1000, TimeUnit.MILLISECONDS);
            assertNotNull(msg);
            assertEquals(TOPIC, new String(msg.getPayload()));
            msg.ack();


            assertEquals(1, publishMap.size());
            final short id = (short) (i + 1);
            assertNotNull("No message for id " + id, publishMap.get(id));
            publishMap.clear();

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                return newConnection.isConnected();
            }
        });


        assertEquals(QoS.EXACTLY_ONCE.ordinal(), qos[0]);
        Message msg = newConnection.receive(1000, TimeUnit.MILLISECONDS);
        assertNotNull(msg);
        assertEquals(TOPIC, new String(msg.getPayload()));
        msg.ack();
        newConnection.disconnect();
    }

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        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);

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        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();
        assertEquals("Message body", DOLLAR_TOPIC, new String(message.getPayload()));


        connection.disconnect();
    }

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            connection.publish(topic.name().toString(), payload, QoS.AT_LEAST_ONCE, false);
        }


        int received = 0;
        for (int i = 0; i < topics.length; ++i) {
            Message message = connection.receive();
            assertNotNull(message);
            received++;
            payload = message.getPayload();
            String messageContent = new String(payload);
            LOG.info("Received message from topic: " + message.getTopic() + " Message content: " + messageContent);
            message.ack();
        }


        assertEquals("Should have received " + topics.length + " messages", topics.length, received);
    }

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