<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category   Zend

 * @package    Zend_Tool

 * @subpackage Framework

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 * @version    $Id: BasicLoader.php 20785 2010-01-31 09:43:03Z mikaelkael $

 */

/**

 * @see Zend_Tool_Framework_Loader_Abstract

 */

require_once 'Zend/Tool/Framework/Loader/Interface.php';

/**

 * @see Zend_Tool_Framework_Registry_EnabledInterface

 */

require_once 'Zend/Tool/Framework/Registry/EnabledInterface.php';

/**

 * @see Zend_Loader

 */

require_once 'Zend/Loader.php';

require_once 'Zend/Tool/Framework/Manifest/Interface.php';

require_once 'Zend/Tool/Framework/Provider/Interface.php';

/**

 * @category   Zend

 * @package    Zend_Tool

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Tool_Framework_Loader_BasicLoader 

    implements Zend_Tool_Framework_Loader_Interface, Zend_Tool_Framework_Registry_EnabledInterface

{

    /**

     * @var Zend_Tool_Framework_Repository_Interface

     */

    protected $_registry = null;

    /**

     * @var array

     */

    protected $_classesToLoad = array();

    public function __construct($options = array())

    {

        if ($options) {

            $this->setOptions($options);

        }

    }

    public function setOptions(Array $options)

    {

        foreach ($options as $optionName => $optionValue) {

            $setMethod = 'set' . $optionName;

            if (method_exists($this, $setMethod)) {

                $this->{$setMethod}($optionValue);

            }

        }

    }

    /**

     * setRegistry() - required by the enabled interface to get an instance of

     * the registry

     *

     * @param Zend_Tool_Framework_Registry_Interface $registry

     * @return Zend_Tool_Framework_Loader_Abstract

     */

    public function setRegistry(Zend_Tool_Framework_Registry_Interface $registry)

    {

        $this->_registry = $registry;

        return $this;

    }

    /**

     * @param  array $classesToLoad

     * @return Zend_Tool_Framework_Loader_Abstract

     */

    public function setClassesToLoad(array $classesToLoad)

    {

        $this->_classesToLoad = $classesToLoad;

        return $this;

    }

    public function load()

    {

        $manifestRegistry = $this->_registry->getManifestRepository();

        $providerRegistry = $this->_registry->getProviderRepository();

        $loadedClasses = array();

        // loop through the loaded classes and ensure that

        foreach ($this->_classesToLoad as $class) {

            if (!class_exists($class)) {

                Zend_Loader::loadClass($class);

            }

            // reflect class to see if its something we want to load

            $reflectionClass = new ReflectionClass($class);

            if ($this->_isManifestImplementation($reflectionClass)) {

                $manifestRegistry->addManifest($reflectionClass->newInstance());

                $loadedClasses[] = $class;

            }

            if ($this->_isProviderImplementation($reflectionClass)) {

                $providerRegistry->addProvider($reflectionClass->newInstance());

                $loadedClasses[] = $class;

            }

        }

        return $loadedClasses;

    }

    /**

     * @param  ReflectionClass $reflectionClass

     * @return bool

     */

    private function _isManifestImplementation($reflectionClass)

    {

        return (

            $reflectionClass->implementsInterface('Zend_Tool_Framework_Manifest_Interface')

                && !$reflectionClass->isAbstract()

        );

    }

    /**

     * @param  ReflectionClass $reflectionClass

     * @return bool

     */

    private function _isProviderImplementation($reflectionClass)

    {

        $providerRegistry = $this->_registry->getProviderRepository();

        return (

            $reflectionClass->implementsInterface('Zend_Tool_Framework_Provider_Interface')

                && !$reflectionClass->isAbstract()

                && !$providerRegistry->hasProvider($reflectionClass->getName(), false)

        );

    }

}