org.apache.spark.streaming.mqtt

Class MQTTUtils

Object

org.apache.spark.streaming.mqtt.MQTTUtils

public class MQTTUtils
extends Object

Constructor Summary

Constructors

Constructor and Description
MQTTUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static JavaReceiverInputDStream<String>	createStream(JavaStreamingContext jssc, String brokerUrl, String topic) Create an input stream that receives messages pushed by a MQTT publisher.
static JavaReceiverInputDStream<String>	createStream(JavaStreamingContext jssc, String brokerUrl, String topic, StorageLevel storageLevel) Create an input stream that receives messages pushed by a MQTT publisher.
static ReceiverInputDStream<String>	createStream(StreamingContext ssc, String brokerUrl, String topic, StorageLevel storageLevel) Create an input stream that receives messages pushed by a MQTT publisher.

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MQTTUtils

public MQTTUtils()

Method Detail

createStream

public static ReceiverInputDStream<String> createStream(StreamingContext ssc,
                                        String brokerUrl,
                                        String topic,
                                        StorageLevel storageLevel)

Create an input stream that receives messages pushed by a MQTT publisher.

Parameters:

ssc - StreamingContext object

brokerUrl - Url of remote MQTT publisher

topic - Topic name to subscribe to

storageLevel - RDD storage level. Defaults to StorageLevel.MEMORY_AND_DISK_SER_2.

createStream

public static JavaReceiverInputDStream<String> createStream(JavaStreamingContext jssc,
                                            String brokerUrl,
                                            String topic)

Create an input stream that receives messages pushed by a MQTT publisher. Storage level of the data will be the default StorageLevel.MEMORY_AND_DISK_SER_2.

Parameters:

jssc - JavaStreamingContext object

brokerUrl - Url of remote MQTT publisher

topic - Topic name to subscribe to

createStream

public static JavaReceiverInputDStream<String> createStream(JavaStreamingContext jssc,
                                            String brokerUrl,
                                            String topic,
                                            StorageLevel storageLevel)

Create an input stream that receives messages pushed by a MQTT publisher.

Parameters:

jssc - JavaStreamingContext object

brokerUrl - Url of remote MQTT publisher

topic - Topic name to subscribe to

storageLevel - RDD storage level.