<?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\Mapping\Driver;

use Doctrine\ORM\Mapping\MappingException;
use Doctrine\Common\Persistence\Mapping\Driver\FileDriver;

/**
 * Base driver for file-based metadata drivers.
 *
 * A file driver operates in a mode where it loads the mapping files of individual
 * classes on demand. This requires the user to adhere to the convention of 1 mapping
 * file per class and the file names of the mapping files must correspond to the full
 * class name, including namespace, with the namespace delimiters '\', replaced by dots '.'.
 *
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @link        www.doctrine-project.com
 * @since       2.0
 * @author		Benjamin Eberlei <kontakt@beberlei.de>
 * @author		Guilherme Blanco <guilhermeblanco@hotmail.com>
 * @author      Jonathan H. Wage <jonwage@gmail.com>
 * @author      Roman Borschel <roman@code-factory.org>
 */
abstract class AbstractFileDriver extends FileDriver implements Driver
{
    /**
     * Append lookup paths to metadata driver.
     *
     * @param array $paths
     */
    public function addPaths(array $paths)
    {
        $this->locator->addPaths($paths);
    }

    /**
     * Retrieve the defined metadata lookup paths.
     *
     * @return array
     */
    public function getPaths()
    {
        return $this->locator->getPaths();
    }

    /**
     * Get the element of schema meta data for the class from the mapping file.
     * This will lazily load the mapping file if it is not loaded yet
     *
     * @return array $element  The element of schema meta data
     * @throws MappingException
     * @todo move behavior to FileDriver
     */
    public function getElement($className)
    {
        $result = parent::getElement($className);
        if($result === null) {
            throw MappingException::invalidMappingFile($className, str_replace('\\', '.', $className) . $this->locator->getFileExtension());
        }
        return $result;
    }

    /**
     * Finds the mapping file for the class with the given name by searching
     * through the configured paths.
     *
     * @param $className
     * @return string The (absolute) file name.
     * @throws MappingException
     */
    protected function findMappingFile($className)
    {
        return $this->locator->findMappingFile($className);
    }
}