metaheuristics-in-java/problems/no-framework/CPH/src/main/java/cph/instance/InstancesManager.java at master · codeurjc/metaheuristics-in-java · GitHub

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package cph.instance;

import java.util.List;

public final class InstancesManager {

    private final List<InstanceFile> allInstances = List.of(
            new InstanceFile("phub_50_5/phub_50_5_1.txt", "phub_50_5_1", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_2.txt", "phub_50_5_2", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_3.txt", "phub_50_5_3", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_4.txt", "phub_50_5_4", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_5.txt", "phub_50_5_5", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_6.txt", "phub_50_5_6", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_7.txt", "phub_50_5_7", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_8.txt", "phub_50_5_8", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_9.txt", "phub_50_5_9", "phub_50_5"),
            new InstanceFile("phub_50_5/phub_50_5_10.txt", "phub_50_5_10", "phub_50_5"),
            new InstanceFile("phub_100_10/phub_100_10_1.txt", "phub_100_10_1", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_2.txt", "phub_100_10_2", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_3.txt", "phub_100_10_3", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_4.txt", "phub_100_10_4", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_5.txt", "phub_100_10_5", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_6.txt", "phub_100_10_6", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_7.txt", "phub_100_10_7", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_8.txt", "phub_100_10_8", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_9.txt", "phub_100_10_9", "phub_100_10"),
            new InstanceFile("phub_100_10/phub_100_10_10.txt", "phub_100_10_10", "phub_100_10"));

    public List<InstanceFile> getInstances() {
        return allInstances;
    }

    public List<InstanceFile> getInstancesByType(String type) {
        return allInstances.stream()
                .filter(instance -> instance.type().equals(type))
                .toList();
    }

    public InstanceFile getInstance(int index) {
        return allInstances.get(index);
    }

    public List<InstanceFile> getInstances(int fromIndex, int toIndex) {
        return allInstances.subList(fromIndex, toIndex);
    }

    public InstanceFile getInstanceByType(String type, int index) {
        return getInstancesByType(type).get(index);
    }

    public List<InstanceFile> getInstances(String type, int fromIndex, int toIndex) {
        return getInstancesByType(type).subList(fromIndex, toIndex);
    }

    public InstanceFile getInstanceByFileName(String fileName) {
        return allInstances.stream()
                .filter(instance -> instance.fileName().equals(fileName))
                .findFirst()
                .orElseThrow(() -> new IllegalArgumentException(
                        "No instance with file name: " + fileName));
    }

}