eu.europeana.cloud.service.dps.storm

Class ParseTaskBolt

java.lang.Object

org.apache.storm.topology.base.BaseComponent

org.apache.storm.topology.base.BaseRichBolt

eu.europeana.cloud.service.dps.storm.ParseTaskBolt

All Implemented Interfaces:

Serializable, org.apache.storm.task.IBolt, org.apache.storm.topology.IComponent, org.apache.storm.topology.IRichBolt

public class ParseTaskBolt
extends org.apache.storm.topology.base.BaseRichBolt

This bolt is responsible for convert DpsTask to StormTaskTuple and it emits result to specific storm stream.

Author:

Pavel Kefurt

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	NOTIFICATION_STREAM_NAME
protected org.apache.storm.task.OutputCollector	outputCollector
Map<String,String>	routingRules
protected Map	stormConfig
protected org.apache.storm.task.TopologyContext	topologyContext

Constructor Summary

Constructors

Constructor and Description
ParseTaskBolt(Map<String,String> routingRules) Constructor for ParseTaskBolt with routing.

Method Summary

Methods

Modifier and Type	Method and Description
void	declareOutputFields(org.apache.storm.topology.OutputFieldsDeclarer declarer)
void	execute(org.apache.storm.tuple.Tuple tuple)
void	prepare(Map stormConfig, org.apache.storm.task.TopologyContext tc, org.apache.storm.task.OutputCollector oc)

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

stormConfig

protected Map stormConfig

topologyContext

protected org.apache.storm.task.TopologyContext topologyContext

outputCollector

protected org.apache.storm.task.OutputCollector outputCollector

NOTIFICATION_STREAM_NAME

public static final String NOTIFICATION_STREAM_NAME

See Also:

Constant Field Values

routingRules

public final Map<String,String> routingRules

Constructor Detail

ParseTaskBolt

public ParseTaskBolt(Map<String,String> routingRules)

Constructor for ParseTaskBolt with routing. Task is dropped if TaskName is not in routingRules.

Parameters:

routingRules - routing table in the form ("TaskName": "StreamName")

Method Detail

declareOutputFields

public void declareOutputFields(org.apache.storm.topology.OutputFieldsDeclarer declarer)

execute

public void execute(org.apache.storm.tuple.Tuple tuple)

prepare

public void prepare(Map stormConfig,
           org.apache.storm.task.TopologyContext tc,
           org.apache.storm.task.OutputCollector oc)