Class ResiliencePlugin

java.lang.Object

com.eqixiac.equinix.design.resilience.ResiliencePlugin

All Implemented Interfaces:

DesignPlugin

public final class ResiliencePlugin
extends Object
implements DesignPlugin

Contributes the simulation-based resilience plug-ins to the Metro Optimizer:

• the SimulatedResilienceObjective ("simulated_resilience"), simulated only when the spec weights it;
• the MinSurvivalConstraint ("min_survival"), inert unless a threshold is given here, by the spec's constraints.minSurvivalPct, or by the spec label "design.min_survival_pct" (the field wins over the label);
• the FailoverGeoZonesConstraint ("geo_zones_failover"), inert unless the spec states geo zones.

Registered for DesignPlugin.discover(); or pass one explicitly: MetroOptimizer.forSpec(fabric, spec).plugin(new ResiliencePlugin(options, 75.0)).run().

Constructor Summary

Constructors

Constructor	Description
ResiliencePlugin()	Default options; the survival threshold, if any, comes from the spec (field, else label).
ResiliencePlugin(ResilienceOptions options, Double minSurvivalPct)

Method Summary

Modifier and Type	Method	Description
List<Constraint>	constraints()
String	name()
List<Objective>	objectives()

Methods inherited from class Object

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

Methods inherited from interface DesignPlugin

currencyConverter

Modifier and Type	Method	Description
default CurrencyConverter	currencyConverter()	A currency converter this plug-in contributes (for example a live FX feed).

Constructor Details

ResiliencePlugin

public ResiliencePlugin()

Default options; the survival threshold, if any, comes from the spec (field, else label).

ResiliencePlugin

public ResiliencePlugin(ResilienceOptions options,
 Double minSurvivalPct)

Parameters:

options - graph and simulation options

minSurvivalPct - the least share of service that must survive the worst single failure, 0..100, or null to read the spec (constraints.minSurvivalPct, else the label)

Method Details

name

public String name()

Specified by:

name in interface DesignPlugin

Returns:

a short name for diagnostics

objectives

public List<Objective> objectives()

Specified by:

objectives in interface DesignPlugin

Returns:

objectives to add; never null

constraints

public List<Constraint> constraints()

Specified by:

constraints in interface DesignPlugin

Returns:

constraints to add; never null