com.mitchellbosecke.pebble.extension.core.EvenTest Maven / Gradle / Ivy

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/*******************************************************************************
 * This file is part of Pebble.
 * 
 * Copyright (c) 2014 by Mitchell Bösecke
 * 
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 ******************************************************************************/
package com.mitchellbosecke.pebble.extension.core;

import java.util.List;
import java.util.Map;

import com.mitchellbosecke.pebble.extension.Test;

public class EvenTest implements Test {

    @Override
    public List getArgumentNames() {
        return null;
    }

    @Override
    public boolean apply(Object input, Map args) {
        if (input == null) {
            throw new IllegalArgumentException("Can not pass null value to \"even\" test.");
        }

        if (input instanceof Integer) {
            return ((Integer) input) % 2 == 0;
        } else {
            return ((Long) input) % 2 == 0;
        }
    }
}