/**
 * Copyright (C) 2017 Christian Pierre MOMON <cmomon@april.org>
 *
 * This file is part of (April) Hebdobot.
 *
 * Hebdobot is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Hebdobot is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Hebdobot.  If not, see <http://www.gnu.org/licenses/>
 */
package org.april.hebdobot.util;

import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.util.Properties;

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.math.NumberUtils;

/**
 * The Class Launcher.
 */
public class HebdobotUtils
{
    /**
     * Constructor restriction.
     */
    private HebdobotUtils()
    {
    }

    /**
     * Load properties.
     *
     * @param source
     *            the source
     * @return the properties
     * @throws IOException
     *             Signals that an I/O exception has occurred.
     */
    public static Properties loadProperties(final File source) throws IOException
    {
        Properties result;

        System.setProperty("file.encoding", "UTF-8");
        result = new Properties();
        FileReader reader = null;
        try
        {
            reader = new FileReader(source);
            result.load(reader);
        }
        finally
        {
            IOUtils.closeQuietly(reader);
        }

        //
        return result;
    }

    /**
     * To integer.
     *
     * @param value
     *            the value
     * @return the integer
     */
    public static Integer toInteger(final String value)
    {
        Integer result;

        if ((value == null) || (!NumberUtils.isDigits(value)))
        {
            result = null;
        }
        else
        {
            result = Integer.parseInt(value);
        }

        //
        return result;
    }
}