Package org.apache.sling.event.impl.jobs.config

Class TopologyCapabilities

java.lang.Object

org.apache.sling.event.impl.jobs.config.TopologyCapabilities

public class TopologyCapabilities
extends Object

The capabilities of a topology.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	TopologyCapabilities.InstanceDescriptionComparator

Field Summary

Fields

Modifier and Type	Field	Description
static final String	PROPERTY_TOPICS

Constructor Summary

Constructors

Constructor	Description
TopologyCapabilities(TopologyView view, JobManagerConfiguration config)	Create a new instance

Method Summary

Modifier and Type	Method	Description
void	deactivate()	Deactivate this object.
String	detectTarget(String jobTopic, Map<String,Object> jobProperties, QueueConfigurationManager.QueueInfo queueInfo)	Detect the target instance.
static Map<String,String>	getAllInstancesMap(TopologyView view)
Map<String,List<InstanceDescription>>	getInstanceCapabilities()	Get the instance capabilities.
List<InstanceDescription>	getPotentialTargets(String jobTopic)	Return the potential targets (Sling IDs) sorted by ID
boolean	isActive()	Is this object still active?
boolean	isActive(String instanceId)	Is this instance still active?
boolean	isLeader()	Is the current instance the leader?
boolean	isSame(Map<String,String> newAllInstancesMap)	Is this capabilities the same as represented by the provided instance map?

Methods inherited from class java.lang.Object

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

Field Details

PROPERTY_TOPICS

public static final String PROPERTY_TOPICS

See Also:

• Constant Field Values

Constructor Details

TopologyCapabilities

public TopologyCapabilities(TopologyView view,
 JobManagerConfiguration config)

Create a new instance

Parameters:

view - The new view

config - The current job manager configuration.

Method Details

getAllInstancesMap

public static Map<String,String> getAllInstancesMap(TopologyView view)

isSame

public boolean isSame(Map<String,String> newAllInstancesMap)

Is this capabilities the same as represented by the provided instance map?

Parameters:

newAllInstancesMap - The instance map

Returns:

true if they represent the same state.

deactivate

public void deactivate()

Deactivate this object.

isActive

public boolean isActive()

Is this object still active? If it is not active anymore it should not be used!

Returns:

true if still active.

isActive

public boolean isActive(String instanceId)

Is this instance still active?

Parameters:

instanceId - The instance id

Returns:

true if the instance is active.

isLeader

public boolean isLeader()

Is the current instance the leader?

getPotentialTargets

public List<InstanceDescription> getPotentialTargets(String jobTopic)

Return the potential targets (Sling IDs) sorted by ID

Returns:

A list of instance descriptions. The list might be empty.

detectTarget

public String detectTarget(String jobTopic,
 Map<String,Object> jobProperties,
 QueueConfigurationManager.QueueInfo queueInfo)

Detect the target instance.

getInstanceCapabilities

public Map<String,List<InstanceDescription>> getInstanceCapabilities()

Get the instance capabilities.

Returns:

The map of instance capabilities.