org.apache.storm.eventhubs.bolt

Class EventHubBolt

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseRichBolt

org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

org.apache.storm.eventhubs.bolt.EventHubBolt

All Implemented Interfaces:

Serializable, IBolt, IComponent, IRichBolt

public class EventHubBolt
extends BaseTickTupleAwareRichBolt

A bolt that writes event message to EventHub.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected EventHubBoltConfig	boltConfig
protected OutputCollector	collector
protected com.microsoft.eventhubs.client.EventHubSender	sender

Constructor Summary

Constructors

Constructor and Description
EventHubBolt(EventHubBoltConfig config)
EventHubBolt(String connectionString, String entityPath)
EventHubBolt(String userName, String password, String namespace, String entityPath, boolean partitionMode)

Method Summary

Modifier and Type	Method and Description
void	declareOutputFields(OutputFieldsDeclarer declarer) Declare the output schema for all the streams of this topology.
void	prepare(Map config, TopologyContext context, OutputCollector collector) Called when a task for this component is initialized within a worker on the cluster.
protected void	process(Tuple tuple) Process a single non-tick tuple of input.

Methods inherited from class org.apache.storm.topology.base.BaseTickTupleAwareRichBolt

execute, onTickTuple

Methods inherited from class org.apache.storm.topology.base.BaseRichBolt

cleanup

Methods inherited from class org.apache.storm.topology.base.BaseComponent

getComponentConfiguration

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.storm.topology.IComponent

getComponentConfiguration

Field Detail

collector

protected OutputCollector collector

sender

protected com.microsoft.eventhubs.client.EventHubSender sender

boltConfig

protected EventHubBoltConfig boltConfig

Constructor Detail

EventHubBolt

public EventHubBolt(String connectionString,
                    String entityPath)

EventHubBolt

public EventHubBolt(String userName,
                    String password,
                    String namespace,
                    String entityPath,
                    boolean partitionMode)

EventHubBolt

public EventHubBolt(EventHubBoltConfig config)

Method Detail

prepare

public void prepare(Map config,
                    TopologyContext context,
                    OutputCollector collector)

Description copied from interface: IBolt

Called when a task for this component is initialized within a worker on the cluster. It provides the bolt with the environment in which the bolt executes.

This includes the:

Parameters:

config - The Storm configuration for this bolt. This is the configuration provided to the topology merged in with cluster configuration on this machine.

context - This object can be used to get information about this task’s place within the topology, including the task id and component id of this task, input and output information, etc.

collector - The collector is used to emit tuples from this bolt. Tuples can be emitted at any time, including the prepare and cleanup methods. The collector is thread-safe and should be saved as an instance variable of this bolt object.

process

protected void process(Tuple tuple)

Description copied from class: BaseTickTupleAwareRichBolt

Process a single non-tick tuple of input. Implementation needs to handle ack manually. More details on IBolt.execute(Tuple).

Specified by:

process in class BaseTickTupleAwareRichBolt

Parameters:

tuple - The input tuple to be processed.

declareOutputFields

public void declareOutputFields(OutputFieldsDeclarer declarer)

Description copied from interface: IComponent

Declare the output schema for all the streams of this topology.

Parameters:

declarer - this is used to declare output stream ids, output fields, and whether or not each output stream is a direct stream