com.facebook.buck.util.randomizedtrial

Class RandomizedTrial

java.lang.Object

com.facebook.buck.util.randomizedtrial.RandomizedTrial

public class RandomizedTrial
extends Object

Simple implementation of A/B testing. Each RandomizedTrial selects a group to which buck instance belongs to.

Method Summary

Modifier and Type	Method and Description
static <T extends Enum<T> & WithProbability> T	getGroup(String name, String buildId, Class<T> enumClass) Returns a group for trial with given name.
static <T extends Enum<T>> T	getGroup(String name, String buildId, Map<T,Double> enumValuesWithProbabilities) Returns a group for trial with given name.
static <T extends Enum<T> & WithProbability> T	getGroupStable(String name, Class<T> enumClass) Returns a group for trial with given name.
static <T extends Enum<T>> T	getGroupStable(String name, Map<T,Double> enumValuesWithProbabilities) Returns a group for trial with given name.

Methods inherited from class java.lang.Object

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

Method Detail

getGroupStable

public static <T extends Enum<T> & WithProbability> T getGroupStable(String name,
                                                                     Class<T> enumClass)

Returns a group for trial with given name.

This choice is stable for each test/user/hostname.

Parameters:

name - name of trial.

enumClass - Class of an enum which conforms to WithProbability interface.

getGroupStable

public static <T extends Enum<T>> T getGroupStable(String name,
                                                   Map<T,Double> enumValuesWithProbabilities)

Returns a group for trial with given name.

This choice is stable for each test/user/hostname.

Parameters:

name - name of trial.

enumValuesWithProbabilities - Map of enum values to probabilities.

getGroup

public static <T extends Enum<T>> T getGroup(String name,
                                             String buildId,
                                             Map<T,Double> enumValuesWithProbabilities)

Returns a group for trial with given name.

This choice is stable for a particular buildId/test/user/hostname.

Parameters:

name - name of trial.

enumValuesWithProbabilities - Map of enum values to probabilities.

getGroup

public static <T extends Enum<T> & WithProbability> T getGroup(String name,
                                                               String buildId,
                                                               Class<T> enumClass)

Returns a group for trial with given name.

This choice is stable for a particular buildId/test/user/hostname.

Parameters:

name - name of trial.

enumClass - Class of an enum which conforms to WithProbability interface.