CompositeValidator.java

/*
 * This file is part of NucleusFramework for Bukkit, licensed under the MIT License (MIT).
 *
 * Copyright (c) JCThePants (www.jcwhatever.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.jcwhatever.nucleus.utils.validate;

import com.jcwhatever.nucleus.utils.PreCon;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * A validator composed of other validators.
 */
public class CompositeValidator<E> implements IValidator<E> {

    private List<IValidator<E>> _validators;

    /**
     * Constructor.
     *
     * @param validators  A collection of validators to use.
     */
    public CompositeValidator(Collection<? extends IValidator<E>> validators) {
        PreCon.notNull(validators);

        _validators = new ArrayList<>(validators);
    }

    @Override
    public boolean isValid(E element) {

        for (IValidator<E> validator : _validators) {
            if (!validator.isValid(element))
                return false;
        }

        return true;
    }
}