com.amazonaws.services.simpleworkflow.flow.worker

Class DecisionTaskPoller

java.lang.Object

com.amazonaws.services.simpleworkflow.flow.worker.DecisionTaskPoller

All Implemented Interfaces:

TaskPoller

public class DecisionTaskPoller
extends Object
implements TaskPoller

Constructor Summary

Constructors

Constructor and Description
DecisionTaskPoller()
DecisionTaskPoller(AmazonSimpleWorkflow service, String domain, String taskListToPoll, DecisionTaskHandler decisionTaskHandler)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	awaitTermination(long left, TimeUnit milliseconds)
protected void	checkFieldNotNegative(String fieldName, long fieldValue)
DecisionTaskHandler	getDecisionTaskHandler()
String	getDomain()
String	getIdentity()
AmazonSimpleWorkflow	getService()
String	getTaskListToPoll()
boolean	pollAndProcessSingleTask() Poll for a workflow task and call appropriate decider.
void	setDecisionTaskHandler(DecisionTaskHandler decisionTaskHandler)
void	setDomain(String domain)
void	setIdentity(String identity)
void	setService(AmazonSimpleWorkflow service)
void	setTaskListToPoll(String pollTaskList)
void	shutdown()
void	shutdownNow()

Methods inherited from class java.lang.Object

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

Constructor Detail

DecisionTaskPoller

public DecisionTaskPoller()

DecisionTaskPoller

public DecisionTaskPoller(AmazonSimpleWorkflow service,
                  String domain,
                  String taskListToPoll,
                  DecisionTaskHandler decisionTaskHandler)

Method Detail

getIdentity

public String getIdentity()

setIdentity

public void setIdentity(String identity)

getService

public AmazonSimpleWorkflow getService()

getDomain

public String getDomain()

getDecisionTaskHandler

public DecisionTaskHandler getDecisionTaskHandler()

setDecisionTaskHandler

public void setDecisionTaskHandler(DecisionTaskHandler decisionTaskHandler)

setService

public void setService(AmazonSimpleWorkflow service)

setDomain

public void setDomain(String domain)

getTaskListToPoll

public String getTaskListToPoll()

setTaskListToPoll

public void setTaskListToPoll(String pollTaskList)

pollAndProcessSingleTask

public boolean pollAndProcessSingleTask()
                                 throws Exception

Poll for a workflow task and call appropriate decider. This method might call the service multiple times to retrieve the whole history it it is paginated.

Specified by:

pollAndProcessSingleTask in interface TaskPoller

Returns:

true if task was polled and decided upon, false if poll timed out

Throws:

Exception

DeciderConfigurationException

checkFieldNotNegative

protected void checkFieldNotNegative(String fieldName,
                         long fieldValue)
                              throws IllegalStateException

Throws:

IllegalStateException

shutdown

public void shutdown()

Specified by:

shutdown in interface TaskPoller

shutdownNow

public void shutdownNow()

Specified by:

shutdownNow in interface TaskPoller

awaitTermination

public boolean awaitTermination(long left,
                       TimeUnit milliseconds)
                         throws InterruptedException

Specified by:

awaitTermination in interface TaskPoller

Throws:

InterruptedException