PositiveOrZeroConstraintExtractor.java

package dev.orne.test.rnd.params;

/*-
 * #%L
 * Orne Test Generators
 * %%
 * Copyright (C) 2022 Orne Developments
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 * This program is free software: you can redistribute it and/or modify
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import javax.validation.constraints.NotNull;
import javax.validation.constraints.PositiveOrZero;

import org.apache.commons.lang3.math.NumberUtils;
import org.apiguardian.api.API;
import org.apiguardian.api.API.Status;

/**
 * Generation parameters extractor that detects {@code PositiveOrZero}
 * constraint annotations and sets {@code NumParameters.min}.
 * <p>
 * As {@code long} is a primitive type target's minimum value will
 * be the maximum of it's prior value and sources's value.
 * 
 * @author <a href="mailto:wamphiry@orne.dev">(w) Iker Hernaez</a>
 * @version 1.0, 2022-11
 * @since 0.1
 * @see PositiveOrZero
 * @see NumberParameters
 */
@API(status=Status.EXPERIMENTAL, since="0.1")
public class PositiveOrZeroConstraintExtractor
extends AbstractParametersSourceExtractor<NumberParameters, PositiveOrZero> {

    /**
     * Creates a new instance.
     */
    public PositiveOrZeroConstraintExtractor() {
        super();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void extractParameters(
            final @NotNull PositiveOrZero from,
            final @NotNull NumberParameters target) {
        target.setMin(NumberUtils.max(0, target.getMin().longValue()));
    }
}