com.twitter.heron.packing.builder

Class HomogeneityScorer

java.lang.Object

com.twitter.heron.packing.builder.HomogeneityScorer

All Implemented Interfaces:

Scorer<Container>

public class HomogeneityScorer
extends java.lang.Object
implements Scorer<Container>

Scores based on how homogeneous a container is relative to a given component, from highest to lowest. So a container with all the same components (e.g., AAAA) will get the highest score for A, while a container with a mix of many components (e.g. ABCD) will get a low score. If run in binary mode, score is a 1 if all instances on the container are of componentName, and 0 otherwise

Constructor Summary

Constructors

Constructor and Description
HomogeneityScorer(java.lang.String componentName, boolean binaryMode)

Method Summary

Modifier and Type	Method and Description
double	getScore(Container container) Return the score for a given component on a container
boolean	sortAscending() Whether or not scores produced by this scorer should sort ascending or descending

Methods inherited from class java.lang.Object

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

Constructor Detail

HomogeneityScorer

public HomogeneityScorer(java.lang.String componentName,
                         boolean binaryMode)

Method Detail

sortAscending

public boolean sortAscending()

Description copied from interface: Scorer

Whether or not scores produced by this scorer should sort ascending or descending

Specified by:

sortAscending in interface Scorer<Container>

Returns:

true if the low scores should sort before higher scores

getScore

public double getScore(Container container)

Description copied from interface: Scorer

Return the score for a given component on a container

Specified by:

getScore in interface Scorer<Container>

Parameters:

container - the object to be scored

Returns:

score for container