vendor/doctrine/orm/lib/Doctrine/ORM/Tools/Setup.php

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<?php
/*
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the MIT license. For more information, see
 * <http://www.doctrine-project.org>.
*/

namespace Doctrine\ORM\Tools;

use Doctrine\Common\ClassLoader;
use Doctrine\Common\Cache\Cache;
use Doctrine\Common\Cache\ArrayCache;
use Doctrine\ORM\Configuration;
use Doctrine\ORM\Mapping\Driver\XmlDriver;
use Doctrine\ORM\Mapping\Driver\YamlDriver;

/**
 * Convenience class for setting up Doctrine from different installations and configurations.
 *
 * @author Benjamin Eberlei <kontakt@beberlei.de>
 */
class Setup
{
    /**
     * Use this method to register all autoloads for a downloaded Doctrine library.
     * Pick the directory the library was uncompressed into.
     *
     * @param string $directory
     *
     * @return void
     */
    public static function registerAutoloadDirectory($directory)
    {
        if (!class_exists('Doctrine\Common\ClassLoader', false)) {
            require_once $directory . "/Doctrine/Common/ClassLoader.php";
        }

        $loader = new ClassLoader("Doctrine", $directory);
        $loader->register();

        $loader = new ClassLoader("Symfony\Component", $directory . "/Doctrine");
        $loader->register();
    }

    /**
     * Creates a configuration with an annotation metadata driver.
     *
     * @param array   $paths