com.mesosphere.sdk.offer.evaluate.placement

Class MaxPerRegionRule

java.lang.Object

com.mesosphere.sdk.offer.evaluate.placement.MaxPerRule

com.mesosphere.sdk.offer.evaluate.placement.MaxPerRegionRule

All Implemented Interfaces:

PlacementRule

public class MaxPerRegionRule
extends MaxPerRule

This rules implements a placement rule for restricting the maximum number of tasks per Region.

Field Summary

Fields inherited from class com.mesosphere.sdk.offer.evaluate.placement.MaxPerRule

max

Constructor Summary

Constructors

Constructor and Description
MaxPerRegionRule(int maxPerRegion)
MaxPerRegionRule(java.lang.Integer max, StringMatcher taskFilter)

Method Summary

Modifier and Type	Method and Description
EvaluationOutcome	filter(Protos.Offer offer, PodInstance podInstance, java.util.Collection<Protos.TaskInfo> tasks) Returns whether the provided Offer, combined with the accompanying TaskInfos, passes or fails this placement constraint.
java.util.Collection<java.lang.String>	getKeys(Protos.Offer offer)
java.util.Collection<java.lang.String>	getKeys(Protos.TaskInfo taskInfo)
java.util.Collection<PlacementField>	getPlacementFields() Returns the PlacementFields to which this rule applies.

Methods inherited from class com.mesosphere.sdk.offer.evaluate.placement.MaxPerRule

equals, getTaskFilter, hashCode, isAcceptable

Methods inherited from class java.lang.Object

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

Constructor Detail

MaxPerRegionRule

public MaxPerRegionRule(int maxPerRegion)

MaxPerRegionRule

public MaxPerRegionRule(java.lang.Integer max,
                        StringMatcher taskFilter)

Method Detail

getKeys

public java.util.Collection<java.lang.String> getKeys(Protos.TaskInfo taskInfo)

Specified by:

getKeys in class MaxPerRule

getKeys

public java.util.Collection<java.lang.String> getKeys(Protos.Offer offer)

Specified by:

getKeys in class MaxPerRule

filter

public EvaluationOutcome filter(Protos.Offer offer,
                                PodInstance podInstance,
                                java.util.Collection<Protos.TaskInfo> tasks)

Description copied from interface: PlacementRule

Returns whether the provided Offer, combined with the accompanying TaskInfos, passes or fails this placement constraint.

Parameters:

offer - the offer to be examined

tasks - the currently deployed tasks in the system, possibly including a duplicate of the task being launched as represented in the offerRequirement. Use PlacementUtils.areEquivalent(TaskInfo, PodInstance) to detect duplicates

Returns:

an EvaluationOutcome object describing whether the placement succeeded or failed and why

getPlacementFields

public java.util.Collection<PlacementField> getPlacementFields()

Description copied from interface: PlacementRule

Returns the PlacementFields to which this rule applies.