Drools 创建自定义乐谱

发布于 2024-11-19 05:55:33 字数 298 浏览 10 评论 0原文

所以我在 drools: 中创建了一个自定义分数

public interface MyScore extends Score<MyScore>

并实现了它。但是我不知道如何使用分数。该配置有一个

<scoreDefinition>

标签，但将除 SIMPLE 或 HARD_AND_SOFT 之外的任何内容放入其中都会产生错误。

如何配置求解器以使用我创建的分数，文档似乎暗示这是可能的，但没有详细说明。

原文

So I've created a custom score in drools:

public interface MyScore extends Score<MyScore>

and have implemented it. However I can't see how to use the score. The config has a

<scoreDefinition>

tag but putting anything inside this other than SIMPLE or HARD_AND_SOFT produces an error.

How can I configure the solver to use the score I've created, the docs seem to imply this is possible but doesn't go into any detail.

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蝶舞 2024-11-26 05:55:33

这原本是可能的（也是一种正常的做法），但存在一个障碍。

我刚刚添加了此文档：

实现自定义分数

要实现自定义分数，您还需要实现自定义 ScoreDefinition。扩展 AbstractScoreDefinition（最好通过复制粘贴 HardAndSoftScoreDefinition 或 SimpleScoreDefinition）并从那里开始。

接下来，在 SolverConfig.xml 中挂钩自定义 ScoreDefinition：

<scoreDefinition>
    <scoreDefinitionClass>org.drools.planner.examples.my.score.definition.MyScoreDefinition</scoreDefinitionClass>
</scoreDefinition>

障碍

我将针对 5.3 或 5.4 修复一个障碍：

ScoreDefinitionConfig 有以下代码：

/**
 * @TODO score-in-solution refactor
 */
public ScoreCalculator buildScoreCalculator() {
    if (scoreDefinitionType != null) {
        switch (scoreDefinitionType) {
            case SIMPLE:
                return new SimpleScoreCalculator();
            case SIMPLE_DOUBLE:
                return new SimpleDoubleScoreCalculator();
            case HARD_AND_SOFT:
                return new DefaultHardAndSoftConstraintScoreCalculator();
            default:
                throw new IllegalStateException("The scoreDefinitionType (" + scoreDefinitionType
                        + ") is not implemented");
        }
    } else {
        return new SimpleScoreCalculator();
    }
}

解决该问题的一种方法是扩展 ScoreDefinitionConfig 并覆盖该方法，如手册中使用自定义选择器、接受器或觅食器部分中所述。

This was meant to be possible (and a normal practice), but there's a roadblock.

I just added this documentation:

Implementing a custom Score

To implement a custom Score, you 'll also need to implement a custom ScoreDefinition. Extend AbstractScoreDefinition (preferable by copy pasting HardAndSoftScoreDefinition or SimpleScoreDefinition) and start from there.

Next, hook you custom ScoreDefinition in your SolverConfig.xml:

<scoreDefinition>
    <scoreDefinitionClass>org.drools.planner.examples.my.score.definition.MyScoreDefinition</scoreDefinitionClass>
</scoreDefinition>

The Roadblock

There's a roadblock that I 'll fix for 5.3 or 5.4:

ScoreDefinitionConfig has this code:

/**
 * @TODO score-in-solution refactor
 */
public ScoreCalculator buildScoreCalculator() {
    if (scoreDefinitionType != null) {
        switch (scoreDefinitionType) {
            case SIMPLE:
                return new SimpleScoreCalculator();
            case SIMPLE_DOUBLE:
                return new SimpleDoubleScoreCalculator();
            case HARD_AND_SOFT:
                return new DefaultHardAndSoftConstraintScoreCalculator();
            default:
                throw new IllegalStateException("The scoreDefinitionType (" + scoreDefinitionType
                        + ") is not implemented");
        }
    } else {
        return new SimpleScoreCalculator();
    }
}

One way to deal with that is to extend ScoreDefinitionConfig and overwrite that method, as described in the manual in the section using a custom Selector, Acceptor or Forager.

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野生奥特曼 2024-11-26 05:55:33

据我所知，可能不支持自定义分数，这很遗憾......
我检查了 ScoreDefinitionConfig 类，我看到了这个：

                   switch (scoreDefinitionType) {
                case SIMPLE:
                    return new SimpleScoreDefinition();
                case HARD_AND_SOFT:
                    return new HardAndSoftScoreDefinition();
                default:
                    throw new IllegalStateException("scoreDefinitionType ("
                            + scoreDefinitionType + ") not implemented");

那么，除了 SIMPLE 和 HARD_AND_SOFT 之外的任何东西都不能削减它......

对此有什么见解吗？

克罗恩,
路易斯

For what I could see, there could be no support for custom scores, which is a shame...
I checked the ScoreDefinitionConfig class and I saw this:

                   switch (scoreDefinitionType) {
                case SIMPLE:
                    return new SimpleScoreDefinition();
                case HARD_AND_SOFT:
                    return new HardAndSoftScoreDefinition();
                default:
                    throw new IllegalStateException("scoreDefinitionType ("
                            + scoreDefinitionType + ") not implemented");

So, anything other than SIMPLE and HARD_AND_SOFT doesn't cut it...

Any insights on this?

KR,
Luis

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