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<?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_Controller
* @subpackage Plugins
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Broker.php 16541 2009-07-07 06:59:03Z bkarwin $
*/
/** Zend_Controller_Plugin_Abstract */
require_once 'Zend/Controller/Plugin/Abstract.php';
/**
* @category Zend
* @package Zend_Controller
* @subpackage Plugins
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Controller_Plugin_Broker extends Zend_Controller_Plugin_Abstract
{
/**
* Array of instance of objects extending Zend_Controller_Plugin_Abstract
*
* @var array
*/
protected $_plugins = array();
/**
* Register a plugin.
*
* @param Zend_Controller_Plugin_Abstract $plugin
* @param int $stackIndex
* @return Zend_Controller_Plugin_Broker
*/
public function registerPlugin(Zend_Controller_Plugin_Abstract $plugin, $stackIndex = null)
{
if (false !== array_search($plugin, $this->_plugins, true)) {
require_once 'Zend/Controller/Exception.php';
throw new Zend_Controller_Exception('Plugin already registered');
}
$stackIndex = (int) $stackIndex;
if ($stackIndex) {
if (isset($this->_plugins[$stackIndex])) {
require_once 'Zend/Controller/Exception.php';
throw new Zend_Controller_Exception('Plugin with stackIndex "' . $stackIndex . '" already registered');
}
$this->_plugins[$stackIndex] = $plugin;
} else {
$stackIndex = count($this->_plugins);
while (isset($this->_plugins[$stackIndex])) {
++$stackIndex;
}
$this->_plugins[$stackIndex] = $plugin;
}
$request = $this->getRequest();
if ($request) {
$this->_plugins[$stackIndex]->setRequest($request);
}
$response = $this->getResponse();
if ($response) {
$this->_plugins[$stackIndex]->setResponse($response);
}
ksort($this->_plugins);
return $this;
}
/**
* Unregister a plugin.
*
* @param string|Zend_Controller_Plugin_Abstract $plugin Plugin object or class name
* @return Zend_Controller_Plugin_Broker
*/
public function unregisterPlugin($plugin)
{
if ($plugin instanceof Zend_Controller_Plugin_Abstract) {
// Given a plugin object, find it in the array
$key = array_search($plugin, $this->_plugins, true);
if (false === $key) {
require_once 'Zend/Controller/Exception.php';
throw new Zend_Controller_Exception('Plugin never registered.');
}
unset($this->_plugins[$key]);
} elseif (is_string($plugin)) {
// Given a plugin class, find all plugins of that class and unset them
foreach ($this->_plugins as $key => $_plugin) {
$type = get_class($_plugin);
if ($plugin == $type) {
unset($this->_plugins[$key]);
}
}
}
return $this;
}
/**
* Is a plugin of a particular class registered?
*
* @param string $class
* @return bool
*/
public function hasPlugin($class)
{
foreach ($this->_plugins as $plugin) {
$type = get_class($plugin);
if ($class == $type) {
return true;
}
}
return false;
}
/**
* Retrieve a plugin or plugins by class
*
* @param string $class Class name of plugin(s) desired
* @return false|Zend_Controller_Plugin_Abstract|array Returns false if none found, plugin if only one found, and array of plugins if multiple plugins of same class found
*/
public function getPlugin($class)
{
$found = array();
foreach ($this->_plugins as $plugin) {
$type = get_class($plugin);
if ($class == $type) {
$found[] = $plugin;
}
}
switch (count($found)) {
case 0:
return false;
case 1:
return $found[0];
default:
return $found;
}
}
/**
* Retrieve all plugins
*
* @return array
*/
public function getPlugins()
{
return $this->_plugins;
}
/**
* Set request object, and register with each plugin
*
* @param Zend_Controller_Request_Abstract $request
* @return Zend_Controller_Plugin_Broker
*/
public function setRequest(Zend_Controller_Request_Abstract $request)
{
$this->_request = $request;
foreach ($this->_plugins as $plugin) {
$plugin->setRequest($request);
}
return $this;
}
/**
* Get request object
*
* @return Zend_Controller_Request_Abstract $request
*/
public function getRequest()
{
return $this->_request;
}
/**
* Set response object
*
* @param Zend_Controller_Response_Abstract $response
* @return Zend_Controller_Plugin_Broker
*/
public function setResponse(Zend_Controller_Response_Abstract $response)
{
$this->_response = $response;
foreach ($this->_plugins as $plugin) {
$plugin->setResponse($response);
}
return $this;
}
/**
* Get response object
*
* @return Zend_Controller_Response_Abstract $response
*/
public function getResponse()
{
return $this->_response;
}
/**
* Called before Zend_Controller_Front begins evaluating the
* request against its routes.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function routeStartup(Zend_Controller_Request_Abstract $request)
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->routeStartup($request);
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
/**
* Called before Zend_Controller_Front exits its iterations over
* the route set.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function routeShutdown(Zend_Controller_Request_Abstract $request)
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->routeShutdown($request);
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
/**
* Called before Zend_Controller_Front enters its dispatch loop.
*
* During the dispatch loop, Zend_Controller_Front keeps a
* Zend_Controller_Request_Abstract object, and uses
* Zend_Controller_Dispatcher to dispatch the
* Zend_Controller_Request_Abstract object to controllers/actions.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function dispatchLoopStartup(Zend_Controller_Request_Abstract $request)
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->dispatchLoopStartup($request);
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
/**
* Called before an action is dispatched by Zend_Controller_Dispatcher.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function preDispatch(Zend_Controller_Request_Abstract $request)
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->preDispatch($request);
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
/**
* Called after an action is dispatched by Zend_Controller_Dispatcher.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function postDispatch(Zend_Controller_Request_Abstract $request)
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->postDispatch($request);
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
/**
* Called before Zend_Controller_Front exits its dispatch loop.
*
* @param Zend_Controller_Request_Abstract $request
* @return void
*/
public function dispatchLoopShutdown()
{
foreach ($this->_plugins as $plugin) {
try {
$plugin->dispatchLoopShutdown();
} catch (Exception $e) {
if (Zend_Controller_Front::getInstance()->throwExceptions()) {
throw $e;
} else {
$this->getResponse()->setException($e);
}
}
}
}
}
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