Examples with MqttTopicSubscription io.vertx.mqtt.MqttTopicSubscription used on opensource projects

Example 11 with MqttTopicSubscription

use of io.vertx.mqtt.MqttTopicSubscription in project vertx-examples by vert-x3.

the class Server method start.

@Override
public void start() throws Exception {
    MqttServer mqttServer = MqttServer.create(vertx);
    mqttServer.endpointHandler(endpoint -> {
        // shows main connect info
        System.out.println("MQTT client [" + endpoint.clientIdentifier() + "] request to connect, clean session = " + endpoint.isCleanSession());
        if (endpoint.auth() != null) {
            System.out.println("[username = " + endpoint.auth().userName() + ", password = " + endpoint.auth().password() + "]");
        }
        if (endpoint.will() != null) {
            System.out.println("[will flag = " + endpoint.will().isWillFlag() + " topic = " + endpoint.will().willTopic() + " msg = " + endpoint.will().willMessage() + " QoS = " + endpoint.will().willQos() + " isRetain = " + endpoint.will().isWillRetain() + "]");
        }
        System.out.println("[keep alive timeout = " + endpoint.keepAliveTimeSeconds() + "]");
        // accept connection from the remote client
        endpoint.accept(false);
        // handling requests for subscriptions
        endpoint.subscribeHandler(subscribe -> {
            List<MqttQoS> grantedQosLevels = new ArrayList<>();
            for (MqttTopicSubscription s : subscribe.topicSubscriptions()) {
                System.out.println("Subscription for " + s.topicName() + " with QoS " + s.qualityOfService());
                grantedQosLevels.add(s.qualityOfService());
            }
            // ack the subscriptions request
            endpoint.subscribeAcknowledge(subscribe.messageId(), grantedQosLevels);
            // just as example, publish a message on the first topic with requested QoS
            endpoint.publish(subscribe.topicSubscriptions().get(0).topicName(), Buffer.buffer("Hello from the Vert.x MQTT server"), subscribe.topicSubscriptions().get(0).qualityOfService(), false, false);
            // specifing handlers for handling QoS 1 and 2
            endpoint.publishAcknowledgeHandler(messageId -> {
                System.out.println("Received ack for message = " + messageId);
            }).publishReceivedHandler(messageId -> {
                endpoint.publishRelease(messageId);
            }).publishCompletionHandler(messageId -> {
                System.out.println("Received ack for message = " + messageId);
            });
        });
        // handling requests for unsubscriptions
        endpoint.unsubscribeHandler(unsubscribe -> {
            for (String t : unsubscribe.topics()) {
                System.out.println("Unsubscription for " + t);
            }
            // ack the subscriptions request
            endpoint.unsubscribeAcknowledge(unsubscribe.messageId());
        });
        // handling ping from client
        endpoint.pingHandler(v -> {
            System.out.println("Ping received from client");
        });
        // handling disconnect message
        endpoint.disconnectHandler(v -> {
            System.out.println("Received disconnect from client");
        });
        // handling closing connection
        endpoint.closeHandler(v -> {
            System.out.println("Connection closed");
        });
        // handling incoming published messages
        endpoint.publishHandler(message -> {
            System.out.println("Just received message on [" + message.topicName() + "] payload [" + message.payload() + "] with QoS [" + message.qosLevel() + "]");
            if (message.qosLevel() == MqttQoS.AT_LEAST_ONCE) {
                endpoint.publishAcknowledge(message.messageId());
            } else if (message.qosLevel() == MqttQoS.EXACTLY_ONCE) {
                endpoint.publishReceived(message.messageId());
            }
        }).publishReleaseHandler(messageId -> {
            endpoint.publishComplete(messageId);
        });
    }).listen(1883, "0.0.0.0", ar -> {
        if (ar.succeeded()) {
            System.out.println("MQTT server is listening on port " + mqttServer.actualPort());
        } else {
            System.err.println("Error on starting the server" + ar.cause().getMessage());
        }
    });
}

Example 12 with MqttTopicSubscription

use of io.vertx.mqtt.MqttTopicSubscription in project vertx-openshift-it by cescoffier.

the class MqttBroker method configureSubscribeHandler.

private void configureSubscribeHandler(MqttEndpoint endpoint) {
    endpoint.subscribeHandler(subscribe -> {
        List<MqttQoS> grantedQosLevels = new ArrayList<>();
        for (MqttTopicSubscription s : subscribe.topicSubscriptions()) {
            System.out.println("Subscription for " + s.topicName() + " with QoS " + s.qualityOfService());
            grantedQosLevels.add(s.qualityOfService());
        }
        endpoint.subscribeAcknowledge(subscribe.messageId(), grantedQosLevels);
        endpoint.publish(subscribe.topicSubscriptions().get(0).topicName(), Buffer.buffer("Hello from the Vert.x MQTT server!"), subscribe.topicSubscriptions().get(0).qualityOfService(), false, false);
        endpoint.publishAcknowledgeHandler(messageId -> System.out.println("Received ack for message = " + messageId)).publishReceivedHandler(endpoint::publishRelease).publishCompletionHandler(messageId -> System.out.println("Received ack for message = " + messageId));
    });
}

Example 13 with MqttTopicSubscription

use of io.vertx.mqtt.MqttTopicSubscription in project hono by eclipse.

the class AbstractVertxBasedMqttProtocolAdapterTest method testOnSubscribeIncludesStatusCodeForEachFilter.

/**
 * Verifies that the adapter includes a status code for each topic filter in its SUBACK packet.
 */
@SuppressWarnings("unchecked")
@Test
public void testOnSubscribeIncludesStatusCodeForEachFilter() {
    // GIVEN a device connected to an adapter
    givenAnAdapter(properties);
    givenAnEventSenderForAnyTenant();
    final MqttEndpoint endpoint = mockEndpoint();
    when(endpoint.isConnected()).thenReturn(true);
    // WHEN a device sends a SUBSCRIBE packet for several unsupported filters
    final List<MqttTopicSubscription> subscriptions = new ArrayList<>();
    subscriptions.add(newMockTopicSubscription("unsupported/#", MqttQoS.AT_LEAST_ONCE));
    subscriptions.add(newMockTopicSubscription("bumlux/+/+/#", MqttQoS.AT_MOST_ONCE));
    subscriptions.add(newMockTopicSubscription("bumlux/+/+/#", MqttQoS.AT_MOST_ONCE));
    // and for subscribing to commands
    final CommandConsumer commandConsumer = mock(CommandConsumer.class);
    when(commandConsumer.close(any())).thenReturn(Future.succeededFuture());
    when(commandConsumerFactory.createCommandConsumer(eq("tenant-1"), eq("device-A"), VertxMockSupport.anyHandler(), any(), any())).thenReturn(Future.succeededFuture(commandConsumer));
    subscriptions.add(newMockTopicSubscription(getCommandSubscriptionTopic("tenant-1", "device-A"), MqttQoS.AT_MOST_ONCE));
    subscriptions.add(newMockTopicSubscription(getCommandSubscriptionTopic("tenant-1", "device-B"), MqttQoS.EXACTLY_ONCE));
    final MqttSubscribeMessage msg = mock(MqttSubscribeMessage.class);
    when(msg.messageId()).thenReturn(15);
    when(msg.topicSubscriptions()).thenReturn(subscriptions);
    final var mqttDeviceEndpoint = adapter.createMqttDeviceEndpoint(endpoint, null, OptionalInt.empty());
    mqttDeviceEndpoint.onSubscribe(msg);
    // THEN the adapter sends a SUBACK packet to the device
    // which contains a failure status code for each unsupported filter
    final ArgumentCaptor<List<MqttQoS>> codeCaptor = ArgumentCaptor.forClass(List.class);
    verify(endpoint).subscribeAcknowledge(eq(15), codeCaptor.capture());
    assertThat(codeCaptor.getValue()).hasSize(5);
    assertThat(codeCaptor.getValue().get(0)).isEqualTo(MqttQoS.FAILURE);
    assertThat(codeCaptor.getValue().get(1)).isEqualTo(MqttQoS.FAILURE);
    assertThat(codeCaptor.getValue().get(2)).isEqualTo(MqttQoS.FAILURE);
    assertThat(codeCaptor.getValue().get(3)).isEqualTo(MqttQoS.AT_MOST_ONCE);
    // and sends an empty notification downstream with TTD -1
    assertEmptyNotificationHasBeenSentDownstream("tenant-1", "device-A", -1);
}

Example 14 with MqttTopicSubscription

use of io.vertx.mqtt.MqttTopicSubscription in project hono by eclipse.

the class AbstractVertxBasedMqttProtocolAdapterTest method newMockTopicSubscription.

private static MqttTopicSubscription newMockTopicSubscription(final String filter, final MqttQoS qos) {
    final MqttTopicSubscription result = mock(MqttTopicSubscription.class);
    when(result.qualityOfService()).thenReturn(qos);
    when(result.topicName()).thenReturn(filter);
    return result;
}