Package org.apache.heron.simulator

Class Simulator

java.lang.Object

org.apache.heron.simulator.Simulator

public class Simulator
extends Object

One Simulator instance can only submit one topology. Please have multiple Simulator instances for multiple topologies.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	Simulator.DefaultExceptionHandler	Handler for catching exceptions thrown by any threads (owned either by topology or heron infrastructure).

Constructor Summary

Constructors

Constructor	Description
Simulator()
Simulator(boolean initialize)

Method Summary

Modifier and Type	Method	Description
void	activate(String topologyName)
void	deactivate(String topologyName)
protected org.apache.heron.common.config.SystemConfig	getSystemConfig()
protected void	init()
protected boolean	isSystemConfigExisted()	Check if the system config is already registered into the SingleRegistry
void	killTopology(String topologyName)
protected void	registerSystemConfig(org.apache.heron.common.config.SystemConfig sysConfig)	Register the given system config
void	shutdown()
void	stop()
void	submitTopology(String name, org.apache.heron.api.Config heronConfig, org.apache.heron.api.HeronTopology heronTopology)	Submit and run topology in simulator

Methods inherited from class java.lang.Object

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

Constructor Detail

Simulator

public Simulator()

Simulator

public Simulator(boolean initialize)

Method Detail

init

protected void init()

isSystemConfigExisted

protected boolean isSystemConfigExisted()

Check if the system config is already registered into the SingleRegistry

Returns:

true if it's registered; false otherwise

registerSystemConfig

protected void registerSystemConfig(org.apache.heron.common.config.SystemConfig sysConfig)

Register the given system config

submitTopology

public void submitTopology(String name,
                           org.apache.heron.api.Config heronConfig,
                           org.apache.heron.api.HeronTopology heronTopology)

Submit and run topology in simulator

Parameters:

name - topology name

heronConfig - topology config

heronTopology - topology built from topology builder

killTopology

public void killTopology(String topologyName)

activate

public void activate(String topologyName)

deactivate

public void deactivate(String topologyName)

shutdown

public void shutdown()

stop

public void stop()

getSystemConfig

protected org.apache.heron.common.config.SystemConfig getSystemConfig()