private Func <bool> CreateIsUpdateDueFunction(UpdateScheme updateScheme)
{
return(updateScheme.UpdateMode switch
{
UpdateMode.None => () => false,
UpdateMode.Generational => IsUpdateDue_Generational,
UpdateMode.Timespan => IsUpdateDue_TimeSpan,
_ => throw new ArgumentException("Unexpected UpdateMode."),
});
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="ea">The <see cref="IEvolutionAlgorithm"/> to wrap.</param>
/// <param name="updateScheme">Evolution algorithm update event scheme.</param>
public EvolutionAlgorithmRunner(
IEvolutionAlgorithm ea,
UpdateScheme updateScheme)
{
_ea = ea ?? throw new ArgumentNullException(nameof(ea));
// Init update scheme.
_updateScheme = updateScheme ?? throw new ArgumentNullException(nameof(updateScheme));
_isUpdateDueFn = CreateIsUpdateDueFunction(_updateScheme);
}
/// <summary>
/// Constructs a new instance.
/// </summary>
/// <param name="ea">The <see cref="IEvolutionAlgorithm"/> to wrap.</param>
public EvolutionAlgorithmRunner(IEvolutionAlgorithm ea)
{
_ea = ea ?? throw new ArgumentNullException(nameof(ea));
// Set to ready state.
_runState = RunState.Ready;
// Set a default update scheme of once per second.
_updateScheme = UpdateScheme.CreateTimeSpanUpdateScheme(TimeSpan.FromSeconds(1));
}
private Func <bool> CreateIsUpdateDueFunction(UpdateScheme updateScheme)
{
switch (updateScheme.UpdateMode)
{
case UpdateMode.None:
return(() => false);
case UpdateMode.Generational:
return(IsUpdateDue_Generational);
case UpdateMode.Timespan:
return(IsUpdateDue_TimeSpan);
default:
throw new ArgumentException("Unexpected UpdateMode.");
}
}
