Package org.mockserver.load

Enum Class RampCurve

java.lang.Object

java.lang.Enum<RampCurve>

org.mockserver.load.RampCurve

All Implemented Interfaces:

Serializable, Comparable<RampCurve>, Constable

public enum RampCurve
extends Enum<RampCurve>

The interpolation curve used to ramp a value (virtual users or arrival rate) from a start setpoint to an end setpoint across a LoadStage as its progress p advances over [0, 1].

valueAt(double, double, double) is the single, pure, tested source of truth for the curve math so both the closed-model VU driver and the open-model arrival-rate scheduler interpolate identically. At the endpoints every curve is exact: valueAt(start,end,0)==start and valueAt(start,end,1)==end.

• LINEAR — start + (end-start)*p (constant slope).
• QUADRATIC — start + (end-start)*p*p (ease-in: slow then fast).
• EXPONENTIAL — start + (end-start) * (exp(K*p)-1)/(exp(K)-1) with K=4 (a steeper ease-in; this normalised form is exact at the endpoints and handles start=0 correctly).

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
EXPONENTIAL
LINEAR
QUADRATIC

Method Summary

Modifier and Type	Method	Description
double	valueAt(double start, double end, double p)	Interpolate between start and end at progress p using this curve.
static RampCurve	valueOf(String name)	Returns the enum constant of this class with the specified name.
static RampCurve[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

LINEAR

public static final RampCurve LINEAR

QUADRATIC

public static final RampCurve QUADRATIC

EXPONENTIAL

public static final RampCurve EXPONENTIAL

Method Details

values

public static RampCurve[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static RampCurve valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

valueAt

public double valueAt(double start,
 double end,
 double p)

Interpolate between start and end at progress p using this curve. p is clamped to [0, 1] so an over-run stage stays pinned at end.