com.mitchellbosecke.pebble.extension.core.MaxFunction 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.Function;
import com.mitchellbosecke.pebble.utils.OperatorUtils;

public class MaxFunction implements Function {

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

    @Override
    public Object execute(Map args) {
        Object min = null;

        int i = 0;

        while (args.containsKey(String.valueOf(i))) {

            Object candidate = args.get(String.valueOf(i));
            i++;

            if (min == null) {
                min = candidate;
                continue;
            }
            if (OperatorUtils.gt(candidate, min)) {
                min = candidate;
            }

        }
        return min;

    }

}