Examples with MqttMessage software.amazon.awssdk.crt.mqtt.MqttMessage used on opensource projects

Example 21 with MqttMessage

use of software.amazon.awssdk.crt.mqtt.MqttMessage in project aws-iot-device-sdk-java-v2 by aws.

the class IotShadowClient method SubscribeToShadowDeltaUpdatedEvents.

/**
 * Subscribe to ShadowDelta events for the (classic) shadow of an AWS IoT thing.
 *
 * Once subscribed, `handler` is invoked each time a message matching
 * the `topic` is received. It is possible for such messages to arrive before
 * the SUBACK is received.
 *
 * AWS documentation: https://docs.aws.amazon.com/iot/latest/developerguide/device-shadow-mqtt.html#update-delta-pub-sub-topic
 *
 * @param request Subscription request configuration
 * @param qos Maximum requested QoS that server may use when sending messages to the client.
 *            The server may grant a lower QoS in the SUBACK
 * @param handler callback function to invoke with messages received on the subscription topic
 * @param exceptionHandler callback function to invoke if an exception occurred deserializing a message
 *
 * @return a future containing the MQTT packet id used to perform the subscribe operation
 */
public CompletableFuture<Integer> SubscribeToShadowDeltaUpdatedEvents(ShadowDeltaUpdatedSubscriptionRequest request, QualityOfService qos, Consumer<ShadowDeltaUpdatedEvent> handler, Consumer<Exception> exceptionHandler) {
    String topic = "$aws/things/{thingName}/shadow/update/delta";
    if (request.thingName == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("ShadowDeltaUpdatedSubscriptionRequest must have a non-null thingName"));
        return result;
    }
    topic = topic.replace("{thingName}", request.thingName);
    Consumer<MqttMessage> messageHandler = (message) -> {
        try {
            String payload = new String(message.getPayload(), StandardCharsets.UTF_8);
            ShadowDeltaUpdatedEvent response = gson.fromJson(payload, ShadowDeltaUpdatedEvent.class);
            handler.accept(response);
        } catch (Exception e) {
            if (exceptionHandler != null) {
                exceptionHandler.accept(e);
            }
        }
    };
    return connection.subscribe(topic, qos, messageHandler);
}

Example 22 with MqttMessage

use of software.amazon.awssdk.crt.mqtt.MqttMessage in project aws-iot-device-sdk-java-v2 by aws.

the class IotShadowClient method PublishDeleteShadow.

/**
 * Deletes the (classic) shadow for an AWS IoT thing.
 *
 * If the device is offline, the PUBLISH packet will be sent once the connection resumes.
 *
 * AWS documentation: https://docs.aws.amazon.com/iot/latest/developerguide/device-shadow-mqtt.html#delete-pub-sub-topic
 *
 * @param request Message to be serialized and sent
 * @param qos Quality of Service for delivering this message
 * @return a future containing the MQTT packet id used to perform the publish operation
 *
 * * For QoS 0, completes as soon as the packet is sent.
 * * For QoS 1, completes when PUBACK is received.
 * * QoS 2 is not supported by AWS IoT.
 */
public CompletableFuture<Integer> PublishDeleteShadow(DeleteShadowRequest request, QualityOfService qos) {
    String topic = "$aws/things/{thingName}/shadow/delete";
    if (request.thingName == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("DeleteShadowRequest must have a non-null thingName"));
        return result;
    }
    topic = topic.replace("{thingName}", request.thingName);
    String payloadJson = gson.toJson(request);
    MqttMessage message = new MqttMessage(topic, payloadJson.getBytes(StandardCharsets.UTF_8));
    return connection.publish(message, qos, false);
}

Example 23 with MqttMessage

use of software.amazon.awssdk.crt.mqtt.MqttMessage in project aws-iot-device-sdk-java-v2 by aws.

the class IotJobsClient method SubscribeToUpdateJobExecutionRejected.

/**
 * Subscribes to the rejected topic for the UpdateJobExecution operation
 *
 * Once subscribed, `handler` is invoked each time a message matching
 * the `topic` is received. It is possible for such messages to arrive before
 * the SUBACK is received.
 *
 * AWS documentation: https://docs.aws.amazon.com/iot/latest/developerguide/jobs-api.html#mqtt-updatejobexecution
 *
 * @param request Subscription request configuration
 * @param qos Maximum requested QoS that server may use when sending messages to the client.
 *            The server may grant a lower QoS in the SUBACK
 * @param handler callback function to invoke with messages received on the subscription topic
 * @param exceptionHandler callback function to invoke if an exception occurred deserializing a message
 *
 * @return a future containing the MQTT packet id used to perform the subscribe operation
 */
public CompletableFuture<Integer> SubscribeToUpdateJobExecutionRejected(UpdateJobExecutionSubscriptionRequest request, QualityOfService qos, Consumer<RejectedError> handler, Consumer<Exception> exceptionHandler) {
    String topic = "$aws/things/{thingName}/jobs/{jobId}/update/rejected";
    if (request.jobId == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("UpdateJobExecutionSubscriptionRequest must have a non-null jobId"));
        return result;
    }
    topic = topic.replace("{jobId}", request.jobId);
    if (request.thingName == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("UpdateJobExecutionSubscriptionRequest must have a non-null thingName"));
        return result;
    }
    topic = topic.replace("{thingName}", request.thingName);
    Consumer<MqttMessage> messageHandler = (message) -> {
        try {
            String payload = new String(message.getPayload(), StandardCharsets.UTF_8);
            RejectedError response = gson.fromJson(payload, RejectedError.class);
            handler.accept(response);
        } catch (Exception e) {
            if (exceptionHandler != null) {
                exceptionHandler.accept(e);
            }
        }
    };
    return connection.subscribe(topic, qos, messageHandler);
}

Example 24 with MqttMessage

use of software.amazon.awssdk.crt.mqtt.MqttMessage in project aws-iot-device-sdk-java-v2 by aws.

the class IotJobsClient method SubscribeToDescribeJobExecutionAccepted.

/**
 * Subscribes to the accepted topic for the DescribeJobExecution operation
 *
 * Once subscribed, `handler` is invoked each time a message matching
 * the `topic` is received. It is possible for such messages to arrive before
 * the SUBACK is received.
 *
 * AWS documentation: https://docs.aws.amazon.com/iot/latest/developerguide/jobs-api.html#mqtt-describejobexecution
 *
 * @param request Subscription request configuration
 * @param qos Maximum requested QoS that server may use when sending messages to the client.
 *            The server may grant a lower QoS in the SUBACK
 * @param handler callback function to invoke with messages received on the subscription topic
 * @param exceptionHandler callback function to invoke if an exception occurred deserializing a message
 *
 * @return a future containing the MQTT packet id used to perform the subscribe operation
 */
public CompletableFuture<Integer> SubscribeToDescribeJobExecutionAccepted(DescribeJobExecutionSubscriptionRequest request, QualityOfService qos, Consumer<DescribeJobExecutionResponse> handler, Consumer<Exception> exceptionHandler) {
    String topic = "$aws/things/{thingName}/jobs/{jobId}/get/accepted";
    if (request.thingName == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("DescribeJobExecutionSubscriptionRequest must have a non-null thingName"));
        return result;
    }
    topic = topic.replace("{thingName}", request.thingName);
    if (request.jobId == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("DescribeJobExecutionSubscriptionRequest must have a non-null jobId"));
        return result;
    }
    topic = topic.replace("{jobId}", request.jobId);
    Consumer<MqttMessage> messageHandler = (message) -> {
        try {
            String payload = new String(message.getPayload(), StandardCharsets.UTF_8);
            DescribeJobExecutionResponse response = gson.fromJson(payload, DescribeJobExecutionResponse.class);
            handler.accept(response);
        } catch (Exception e) {
            if (exceptionHandler != null) {
                exceptionHandler.accept(e);
            }
        }
    };
    return connection.subscribe(topic, qos, messageHandler);
}

Example 25 with MqttMessage

use of software.amazon.awssdk.crt.mqtt.MqttMessage in project aws-iot-device-sdk-java-v2 by aws.

the class IotJobsClient method SubscribeToUpdateJobExecutionAccepted.

/**
 * Subscribes to the accepted topic for the UpdateJobExecution operation
 *
 * Once subscribed, `handler` is invoked each time a message matching
 * the `topic` is received. It is possible for such messages to arrive before
 * the SUBACK is received.
 *
 * AWS documentation: https://docs.aws.amazon.com/iot/latest/developerguide/jobs-api.html#mqtt-updatejobexecution
 *
 * @param request Subscription request configuration
 * @param qos Maximum requested QoS that server may use when sending messages to the client.
 *            The server may grant a lower QoS in the SUBACK
 * @param handler callback function to invoke with messages received on the subscription topic
 * @param exceptionHandler callback function to invoke if an exception occurred deserializing a message
 *
 * @return a future containing the MQTT packet id used to perform the subscribe operation
 */
public CompletableFuture<Integer> SubscribeToUpdateJobExecutionAccepted(UpdateJobExecutionSubscriptionRequest request, QualityOfService qos, Consumer<UpdateJobExecutionResponse> handler, Consumer<Exception> exceptionHandler) {
    String topic = "$aws/things/{thingName}/jobs/{jobId}/update/accepted";
    if (request.jobId == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("UpdateJobExecutionSubscriptionRequest must have a non-null jobId"));
        return result;
    }
    topic = topic.replace("{jobId}", request.jobId);
    if (request.thingName == null) {
        CompletableFuture<Integer> result = new CompletableFuture<Integer>();
        result.completeExceptionally(new MqttException("UpdateJobExecutionSubscriptionRequest must have a non-null thingName"));
        return result;
    }
    topic = topic.replace("{thingName}", request.thingName);
    Consumer<MqttMessage> messageHandler = (message) -> {
        try {
            String payload = new String(message.getPayload(), StandardCharsets.UTF_8);
            UpdateJobExecutionResponse response = gson.fromJson(payload, UpdateJobExecutionResponse.class);
            handler.accept(response);
        } catch (Exception e) {
            if (exceptionHandler != null) {
                exceptionHandler.accept(e);
            }
        }
    };
    return connection.subscribe(topic, qos, messageHandler);
}