heiglandreas/OrgHeiglFileFinder

<?php
/**
 * Copyright (c)2014-2014 heiglandreas
 * 
 * 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
 * LIBILITY, 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.
 *
 * @category 
 * @author    Andreas Heigl<andreas@heigl.org>
 * @copyright ©2014-2014 Andreas Heigl
 * @license   http://www.opesource.org/licenses/mit-license.php MIT-License
 * @version   0.0
 * @since     05.11.14
 * @link      https://github.com/heiglandreas/
 */

namespace Org_Heigl\FileFinder\Filter;


use Org_Heigl\FileFinder\FilterInterface;

class FileExtension implements FilterInterface
{

    /**
     * @var array $extensions
     */
    protected $extensions = array();

    /**
     * Check whether the given file should be included in the final Filelist
     *
     * @param \SplFileInfo $file
     *
     * @return boolean
     */
    public function filter(\SplFileInfo $file)
    {
        return in_Array($file->getExtension(), $this->extensions);
    }

    /**
     * Create an instance of this filter
     *
     * @param array $extensions
     *
     * @return void
     */
    public function __construct($extensions = array())
    {
        if (! is_Array($extensions)) {
            $extensions = array($extensions);
        }

        $this->setExtensions($extensions);
    }

    /**
     * @param array $extensions
     *
     * @return self
     */
    public function setExtensions(array $extensions)
    {
        $this->extensions = $extensions;

        return $this;
    }

    /**
     * Add an extension.
     *
     * @param string $extension
     *
     * @return self
     */
    public function addExtension($extension)
    {
        $this->extensions[] = $extension;

        return $this;
    }

    /**
     * get the extension-list
     *
     * @return array
     */
    public function getExtensions()
    {
        return $this->extensions;
    }
}