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use crate::construction::heuristics::*;
use crate::solver::RefinementContext;
use std::sync::Arc;
pub trait Recreate {
fn run(&self, refinement_ctx: &RefinementContext, insertion_ctx: InsertionContext) -> InsertionContext;
}
mod recreate_with_blinks;
pub use self::recreate_with_blinks::RecreateWithBlinks;
mod recreate_with_cheapest;
pub use self::recreate_with_cheapest::RecreateWithCheapest;
mod recreate_with_farthest;
pub use self::recreate_with_farthest::RecreateWithFarthest;
mod recreate_with_gaps;
pub use self::recreate_with_gaps::RecreateWithGaps;
mod recreate_with_nearest_neighbor;
pub use self::recreate_with_nearest_neighbor::RecreateWithNearestNeighbor;
mod recreate_with_perturbation;
pub use self::recreate_with_perturbation::RecreateWithPerturbation;
mod recreate_with_skip_best;
pub use self::recreate_with_skip_best::RecreateWithSkipBest;
mod recreate_with_regret;
pub use self::recreate_with_regret::RecreateWithRegret;
pub struct WeightedRecreate {
recreates: Vec<Arc<dyn Recreate + Send + Sync>>,
weights: Vec<usize>,
}
impl WeightedRecreate {
pub fn new(recreates: Vec<(Arc<dyn Recreate + Send + Sync>, usize)>) -> Self {
let (recreates, weights) = recreates.into_iter().unzip();
Self { recreates, weights }
}
}
impl Recreate for WeightedRecreate {
fn run(&self, refinement_ctx: &RefinementContext, insertion_ctx: InsertionContext) -> InsertionContext {
let index = insertion_ctx.environment.random.weighted(self.weights.as_slice());
self.recreates.get(index).unwrap().run(refinement_ctx, insertion_ctx)
}
}
pub struct ConfigurableRecreate {
job_selector: Box<dyn JobSelector + Send + Sync>,
route_selector: Box<dyn RouteSelector + Send + Sync>,
result_selector: Box<dyn ResultSelector + Send + Sync>,
insertion_heuristic: InsertionHeuristic,
}
impl ConfigurableRecreate {
pub fn new(
job_selector: Box<dyn JobSelector + Send + Sync>,
route_selector: Box<dyn RouteSelector + Send + Sync>,
result_selector: Box<dyn ResultSelector + Send + Sync>,
insertion_heuristic: InsertionHeuristic,
) -> Self {
Self { job_selector, route_selector, result_selector, insertion_heuristic }
}
}
impl Recreate for ConfigurableRecreate {
fn run(&self, refinement_ctx: &RefinementContext, insertion_ctx: InsertionContext) -> InsertionContext {
self.insertion_heuristic.process(
insertion_ctx,
self.job_selector.as_ref(),
self.route_selector.as_ref(),
self.result_selector.as_ref(),
&refinement_ctx.quota,
)
}
}