org.adroitlogic.x.base.evaluators

Class GroupFailoverEnvironmentEvaluator

java.lang.Object

org.adroitlogic.x.api.EnvironmentEvaluator

org.adroitlogic.x.base.evaluators.GroupFailoverEnvironmentEvaluator

public class GroupFailoverEnvironmentEvaluator
extends EnvironmentEvaluator

The EnvironmentEvaluator class which is to be used for evaluating environment changes related to group failover strategy. This will check whether this node's group is related to

pinnedGroups

either directly or as an acting as group.

Since:

17.01

Author:

Imesha Sudasingha

Constructor Summary

Constructors

Constructor and Description
GroupFailoverEnvironmentEvaluator(int weight, List<String> pinnedGroups)

Method Summary

Modifier and Type	Method and Description
protected boolean	isEvaluationPositive(XEnvironment environment) For example, lets say that an evaluator want to evaluate whether the tags nodeName:node1, groupName:group1 are there in the environment's tags.

Methods inherited from class org.adroitlogic.x.api.EnvironmentEvaluator

evaluate, getNegativeWeight, getPositiveWeight, getPriority

Methods inherited from class java.lang.Object

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

Constructor Detail

GroupFailoverEnvironmentEvaluator

public GroupFailoverEnvironmentEvaluator(int weight,
                                         List<String> pinnedGroups)

Method Detail

isEvaluationPositive

protected boolean isEvaluationPositive(XEnvironment environment)

For example, lets say that an evaluator want to evaluate whether the tags nodeName:node1, groupName:group1 are there in the environment's tags. Then this method should check whether those tags are there in the environment and return true/false accordingly. If this returns true, the class which is using the evaluator for evaluation purposes will be returned a value equal to the

positiveWeight

.

Specified by:

isEvaluationPositive in class EnvironmentEvaluator

Parameters:

environment - the environment subjected to the evaluation

Returns:

true/false according to the evaluation result