<?php

/**
 * AppserverIo\Appserver\Provisioning\Steps\DropDatabaseStep
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 *
 * PHP version 5
 *
 * @author    Tim Wagner <tw@appserver.io>
 * @copyright 2015 TechDivision GmbH <info@appserver.io>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/appserver-io/appserver
 * @link      http://www.appserver.io
 */

namespace AppserverIo\Appserver\Provisioning\Steps;

/**
 * An step implementation that drops a database based on the specified datasource.
 *
 * @author    Tim Wagner <tw@appserver.io>
 * @copyright 2015 TechDivision GmbH <info@appserver.io>
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
 * @link      https://github.com/appserver-io/appserver
 * @link      http://www.appserver.io
 */
class DropDatabaseStep extends AbstractDatabaseStep
{

    /**
     * Executes the functionality for this step, in this case the execution of
     * the PHP script defined in the step configuration.
     *
     * @return void
     * @throws \Exception Is thrown if the script can't be executed
     * @see \AppserverIo\Provisioning\Steps\StepInterface::execute()
     */
    public function execute()
    {

        try {
            // load the class definitions
            $classes = $this->getEntityManager()->getMetadataFactory()->getAllMetadata();

            // drop the schema if it already exist
            $this->getSchemaTool()->dropSchema($classes);

        } catch (\Exception $e) {
            $this->getApplication()->getInitialContext()->getSystemLogger()->error($e->__toString());
        }
    }
}
