com.cloudera.gertrude

Interface Layer

All Known Implementing Classes:

LayerImpl

public interface Layer

A horizontal slice of ExperimentSpace that contains subclasses of the Segment interface, which represent experiments and domains.

An ExperimentState will be diverted into at most one Segment inside of each Layer instance, depending on the attributes of the ExperimentState and the active diversion criteria. Layers are designed so that diversion across layers is independent; knowing which experiment a request was diverted into in one layer does not provide any information about what requests it will divert into in a different layer.

Method Summary

Methods

Modifier and Type	Method and Description
void	assign(ExperimentState state, List<DiversionCriterion> diversionCriteria, Map<String,FlagValueCalculator<Object>> overrides, Set<Integer> newExperimentIds) Assign the given state to a Segment of this Layer based on the given diversionCriteria and update the overrides and set of newExperimentIds based on the settings in that Segment.
boolean	isLaunchLayer() Returns true if this is a launch layer instance, whose experiments have priority over other layers for overriding flag value calculations.

Method Detail

assign

void assign(ExperimentState state,
          List<DiversionCriterion> diversionCriteria,
          Map<String,FlagValueCalculator<Object>> overrides,
          Set<Integer> newExperimentIds)

Assign the given state to a Segment of this Layer based on the given diversionCriteria and update the overrides and set of newExperimentIds based on the settings in that Segment.

Parameters:

state - the ExperimentState undergoing diversion

diversionCriteria - the configured DiversionCriterion applied to the state

overrides - the current set of overrides to the default FlagValueCalculator instances

newExperimentIds - the list of new experiment ids this state will be added to

isLaunchLayer

boolean isLaunchLayer()

Returns true if this is a launch layer instance, whose experiments have priority over other layers for overriding flag value calculations.

Returns:

true if this is a launch layer