angelovcom.net

Registry.php (5960B)

---

 <?php
 /**
  * SimplePie
  *
  * A PHP-Based RSS and Atom Feed Framework.
  * Takes the hard work out of managing a complete RSS/Atom solution.
  *
  * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without modification, are
  * permitted provided that the following conditions are met:
  *
  * 	* Redistributions of source code must retain the above copyright notice, this list of
  * 	  conditions and the following disclaimer.
  *
  * 	* Redistributions in binary form must reproduce the above copyright notice, this list
  * 	  of conditions and the following disclaimer in the documentation and/or other materials
  * 	  provided with the distribution.
  *
  * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
  * 	  to endorse or promote products derived from this software without specific prior
  * 	  written permission.
  *
  * 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 HOLDERS
  * AND 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.
  *
  * @package SimplePie
  * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
  * @author Ryan Parman
  * @author Sam Sneddon
  * @author Ryan McCue
  * @link http://simplepie.org/ SimplePie
  * @license http://www.opensource.org/licenses/bsd-license.php BSD License
  */
 
 /**
  * Handles creating objects and calling methods
  *
  * Access this via {@see SimplePie::get_registry()}
  *
  * @package SimplePie
  */
 class SimplePie_Registry
 {
 	/**
 	 * Default class mapping
 	 *
 	 * Overriding classes *must* subclass these.
 	 *
 	 * @var array
 	 */
 	protected $default = array(
 		'Cache' => 'SimplePie_Cache',
 		'Locator' => 'SimplePie_Locator',
 		'Parser' => 'SimplePie_Parser',
 		'File' => 'SimplePie_File',
 		'Sanitize' => 'SimplePie_Sanitize',
 		'Item' => 'SimplePie_Item',
 		'Author' => 'SimplePie_Author',
 		'Category' => 'SimplePie_Category',
 		'Enclosure' => 'SimplePie_Enclosure',
 		'Caption' => 'SimplePie_Caption',
 		'Copyright' => 'SimplePie_Copyright',
 		'Credit' => 'SimplePie_Credit',
 		'Rating' => 'SimplePie_Rating',
 		'Restriction' => 'SimplePie_Restriction',
 		'Content_Type_Sniffer' => 'SimplePie_Content_Type_Sniffer',
 		'Source' => 'SimplePie_Source',
 		'Misc' => 'SimplePie_Misc',
 		'XML_Declaration_Parser' => 'SimplePie_XML_Declaration_Parser',
 		'Parse_Date' => 'SimplePie_Parse_Date',
 	);
 
 	/**
 	 * Class mapping
 	 *
 	 * @see register()
 	 * @var array
 	 */
 	protected $classes = array();
 
 	/**
 	 * Legacy classes
 	 *
 	 * @see register()
 	 * @var array
 	 */
 	protected $legacy = array();
 
 	/**
 	 * Constructor
 	 *
 	 * No-op
 	 */
 	public function __construct() { }
 
 	/**
 	 * Register a class
 	 *
 	 * @param string $type See {@see $default} for names
 	 * @param string $class Class name, must subclass the corresponding default
 	 * @param bool $legacy Whether to enable legacy support for this class
 	 * @return bool Successfulness
 	 */
 	public function register($type, $class, $legacy = false)
 	{
 		if (!@is_subclass_of($class, $this->default[$type]))
 		{
 			return false;
 		}
 
 		$this->classes[$type] = $class;
 
 		if ($legacy)
 		{
 			$this->legacy[] = $class;
 		}
 
 		return true;
 	}
 
 	/**
 	 * Get the class registered for a type
 	 *
 	 * Where possible, use {@see create()} or {@see call()} instead
 	 *
 	 * @param string $type
 	 * @return string|null
 	 */
 	public function get_class($type)
 	{
 		if (!empty($this->classes[$type]))
 		{
 			return $this->classes[$type];
 		}
 		if (!empty($this->default[$type]))
 		{
 			return $this->default[$type];
 		}
 
 		return null;
 	}
 
 	/**
 	 * Create a new instance of a given type
 	 *
 	 * @param string $type
 	 * @param array $parameters Parameters to pass to the constructor
 	 * @return object Instance of class
 	 */
 	public function &create($type, $parameters = array())
 	{
 		$class = $this->get_class($type);
 
 		if (in_array($class, $this->legacy))
 		{
 			switch ($type)
 			{
 				case 'locator':
 					// Legacy: file, timeout, useragent, file_class, max_checked_feeds, content_type_sniffer_class
 					// Specified: file, timeout, useragent, max_checked_feeds
 					$replacement = array($this->get_class('file'), $parameters[3], $this->get_class('content_type_sniffer'));
 					array_splice($parameters, 3, 1, $replacement);
 					break;
 			}
 		}
 
 		if (!method_exists($class, '__construct'))
 		{
 			$instance = new $class;
 		}
 		else
 		{
 			$reflector = new ReflectionClass($class);
 			$instance = $reflector->newInstanceArgs($parameters);
 		}
 
 		if (method_exists($instance, 'set_registry'))
 		{
 			$instance->set_registry($this);
 		}
 		return $instance;
 	}
 
 	/**
 	 * Call a static method for a type
 	 *
 	 * @param string $type
 	 * @param string $method
 	 * @param array $parameters
 	 * @return mixed
 	 */
 	public function &call($type, $method, $parameters = array())
 	{
 		$class = $this->get_class($type);
 
 		if (in_array($class, $this->legacy))
 		{
 			switch ($type)
 			{
 				case 'Cache':
 					// For backwards compatibility with old non-static
 					// Cache::create() methods
 					if ($method === 'get_handler')
 					{
 						$result = @call_user_func_array(array($class, 'create'), $parameters);
 						return $result;
 					}
 					break;
 			}
 		}
 
 		$result = call_user_func_array(array($class, $method), $parameters);
 		return $result;
 	}
 }