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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
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 /**
  * @category   Zend
  * @package    Zend_Controller
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 abstract class Zend_Controller_Request_Abstract
 {
     /**
      * Has the action been dispatched?
      * @var boolean
      */
     protected $_dispatched = false;
 
     /**
      * Module
      * @var string
      */
     protected $_module;
 
     /**
      * Module key for retrieving module from params
      * @var string
      */
     protected $_moduleKey = 'module';
 
     /**
      * Controller
      * @var string
      */
     protected $_controller;
 
     /**
      * Controller key for retrieving controller from params
      * @var string
      */
     protected $_controllerKey = 'controller';
 
     /**
      * Action
      * @var string
      */
     protected $_action;
 
     /**
      * Action key for retrieving action from params
      * @var string
      */
     protected $_actionKey = 'action';
 
     /**
      * Request parameters
      * @var array
      */
     protected $_params = array();
 
     /**
      * Retrieve the module name
      *
      * @return string
      */
     public function getModuleName()
     {
         if (null === $this->_module) {
             $this->_module = $this->getParam($this->getModuleKey());
         }
 
         return $this->_module;
     }
 
     /**
      * Set the module name to use
      *
      * @param string $value
      * @return Zend_Controller_Request_Abstract
      */
     public function setModuleName($value)
     {
         $this->_module = $value;
         return $this;
     }
 
     /**
      * Retrieve the controller name
      *
      * @return string
      */
     public function getControllerName()
     {
         if (null === $this->_controller) {
             $this->_controller = $this->getParam($this->getControllerKey());
         }
 
         return $this->_controller;
     }
 
     /**
      * Set the controller name to use
      *
      * @param string $value
      * @return Zend_Controller_Request_Abstract
      */
     public function setControllerName($value)
     {
         $this->_controller = $value;
         return $this;
     }
 
     /**
      * Retrieve the action name
      *
      * @return string
      */
     public function getActionName()
     {
         if (null === $this->_action) {
             $this->_action = $this->getParam($this->getActionKey());
         }
 
         return $this->_action;
     }
 
     /**
      * Set the action name
      *
      * @param string $value
      * @return Zend_Controller_Request_Abstract
      */
     public function setActionName($value)
     {
         $this->_action = $value;
         /**
          * @see ZF-3465
          */
         if (null === $value) {
             $this->setParam($this->getActionKey(), $value);
         }
         return $this;
     }
 
     /**
      * Retrieve the module key
      *
      * @return string
      */
     public function getModuleKey()
     {
         return $this->_moduleKey;
     }
 
     /**
      * Set the module key
      *
      * @param string $key
      * @return Zend_Controller_Request_Abstract
      */
     public function setModuleKey($key)
     {
         $this->_moduleKey = (string) $key;
         return $this;
     }
 
     /**
      * Retrieve the controller key
      *
      * @return string
      */
     public function getControllerKey()
     {
         return $this->_controllerKey;
     }
 
     /**
      * Set the controller key
      *
      * @param string $key
      * @return Zend_Controller_Request_Abstract
      */
     public function setControllerKey($key)
     {
         $this->_controllerKey = (string) $key;
         return $this;
     }
 
     /**
      * Retrieve the action key
      *
      * @return string
      */
     public function getActionKey()
     {
         return $this->_actionKey;
     }
 
     /**
      * Set the action key
      *
      * @param string $key
      * @return Zend_Controller_Request_Abstract
      */
     public function setActionKey($key)
     {
         $this->_actionKey = (string) $key;
         return $this;
     }
 
     /**
      * Get an action parameter
      *
      * @param string $key
      * @param mixed $default Default value to use if key not found
      * @return mixed
      */
     public function getParam($key, $default = null)
     {
         $key = (string) $key;
         if (isset($this->_params[$key])) {
             return $this->_params[$key];
         }
 
         return $default;
     }
 
     /**
      * Retrieve only user params (i.e, any param specific to the object and not the environment)
      *
      * @return array
      */
     public function getUserParams()
     {
         return $this->_params;
     }
 
     /**
      * Retrieve a single user param (i.e, a param specific to the object and not the environment)
      *
      * @param string $key
      * @param string $default Default value to use if key not found
      * @return mixed
      */
     public function getUserParam($key, $default = null)
     {
         if (isset($this->_params[$key])) {
             return $this->_params[$key];
         }
 
         return $default;
     }
 
     /**
      * Set an action parameter
      *
      * A $value of null will unset the $key if it exists
      *
      * @param string $key
      * @param mixed $value
      * @return Zend_Controller_Request_Abstract
      */
     public function setParam($key, $value)
     {
         $key = (string) $key;
 
         if ((null === $value) && isset($this->_params[$key])) {
             unset($this->_params[$key]);
         } elseif (null !== $value) {
             $this->_params[$key] = $value;
         }
 
         return $this;
     }
 
     /**
      * Get all action parameters
      *
      * @return array
      */
      public function getParams()
      {
          return $this->_params;
      }
 
     /**
      * Set action parameters en masse; does not overwrite
      *
      * Null values will unset the associated key.
      *
      * @param array $array
      * @return Zend_Controller_Request_Abstract
      */
     public function setParams(array $array)
     {
         $this->_params = $this->_params + (array) $array;
 
         foreach ($array as $key => $value) {
             if (null === $value) {
                 unset($this->_params[$key]);
             }
         }
 
         return $this;
     }
 
     /**
      * Unset all user parameters
      *
      * @return Zend_Controller_Request_Abstract
      */
     public function clearParams()
     {
         $this->_params = array();
         return $this;
     }
 
     /**
      * Set flag indicating whether or not request has been dispatched
      *
      * @param boolean $flag
      * @return Zend_Controller_Request_Abstract
      */
     public function setDispatched($flag = true)
     {
         $this->_dispatched = $flag ? true : false;
         return $this;
     }
 
     /**
      * Determine if the request has been dispatched
      *
      * @return boolean
      */
     public function isDispatched()
     {
         return $this->_dispatched;
     }
 }