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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_Validate
  * @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    $Id$
  */
 
 /**
  * @see Zend_Validate_Interface
  */
 // require_once 'Zend/Validate/Interface.php';
 
 /**
  * @category   Zend
  * @package    Zend_Validate
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Validate implements Zend_Validate_Interface
 {
     /**
      * Validator chain
      *
      * @var array
      */
     protected $_validators = array();
 
     /**
      * Array of validation failure messages
      *
      * @var array
      */
     protected $_messages = array();
 
     /**
      * Default Namespaces
      *
      * @var array
      */
     protected static $_defaultNamespaces = array();
 
     /**
      * Array of validation failure message codes
      *
      * @var array
      * @deprecated Since 1.5.0
      */
     protected $_errors = array();
 
     /**
      * Adds a validator to the end of the chain
      *
      * If $breakChainOnFailure is true, then if the validator fails, the next validator in the chain,
      * if one exists, will not be executed.
      *
      * @param  Zend_Validate_Interface $validator
      * @param  boolean                 $breakChainOnFailure
      * @return Zend_Validate Provides a fluent interface
      */
     public function addValidator(Zend_Validate_Interface $validator, $breakChainOnFailure = false)
     {
         $this->_validators[] = array(
             'instance' => $validator,
             'breakChainOnFailure' => (boolean) $breakChainOnFailure
             );
         return $this;
     }
 
     /**
      * Returns true if and only if $value passes all validations in the chain
      *
      * Validators are run in the order in which they were added to the chain (FIFO).
      *
      * @param  mixed $value
      * @return boolean
      */
     public function isValid($value)
     {
         $this->_messages = array();
         $this->_errors   = array();
         $result = true;
         foreach ($this->_validators as $element) {
             $validator = $element['instance'];
             if ($validator->isValid($value)) {
                 continue;
             }
             $result = false;
             $messages = $validator->getMessages();
             $this->_messages = array_merge($this->_messages, $messages);
             $this->_errors   = array_merge($this->_errors,   array_keys($messages));
             if ($element['breakChainOnFailure']) {
                 break;
             }
         }
         return $result;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns array of validation failure messages
      *
      * @return array
      */
     public function getMessages()
     {
         return $this->_messages;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns array of validation failure message codes
      *
      * @return array
      * @deprecated Since 1.5.0
      */
     public function getErrors()
     {
         return $this->_errors;
     }
 
     /**
      * Returns the set default namespaces
      *
      * @return array
      */
     public static function getDefaultNamespaces()
     {
         return self::$_defaultNamespaces;
     }
 
     /**
      * Sets new default namespaces
      *
      * @param array|string $namespace
      * @return null
      */
     public static function setDefaultNamespaces($namespace)
     {
         if (!is_array($namespace)) {
             $namespace = array((string) $namespace);
         }
 
         self::$_defaultNamespaces = $namespace;
     }
 
     /**
      * Adds a new default namespace
      *
      * @param array|string $namespace
      * @return null
      */
     public static function addDefaultNamespaces($namespace)
     {
         if (!is_array($namespace)) {
             $namespace = array((string) $namespace);
         }
 
         self::$_defaultNamespaces = array_unique(array_merge(self::$_defaultNamespaces, $namespace));
     }
 
     /**
      * Returns true when defaultNamespaces are set
      *
      * @return boolean
      */
     public static function hasDefaultNamespaces()
     {
         return (!empty(self::$_defaultNamespaces));
     }
 
     /**
      * @param  mixed    $value
      * @param  string   $classBaseName
      * @param  array    $args          OPTIONAL
      * @param  mixed    $namespaces    OPTIONAL
      * @return boolean
      * @throws Zend_Validate_Exception
      */
     public static function is($value, $classBaseName, array $args = array(), $namespaces = array())
     {
         $namespaces = array_merge((array) $namespaces, self::$_defaultNamespaces, array('Zend_Validate'));
         $className  = ucfirst($classBaseName);
         try {
             if (!class_exists($className, false)) {
                 // require_once 'Zend/Loader.php';
                 foreach($namespaces as $namespace) {
                     $class = $namespace . '_' . $className;
                     $file  = str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
                     if (Zend_Loader::isReadable($file)) {
                         Zend_Loader::loadClass($class);
                         $className = $class;
                         break;
                     }
                 }
             }
 
             $class = new ReflectionClass($className);
             if ($class->implementsInterface('Zend_Validate_Interface')) {
                 if ($class->hasMethod('__construct')) {
                     $keys    = array_keys($args);
                     $numeric = false;
                     foreach($keys as $key) {
                         if (is_numeric($key)) {
                             $numeric = true;
                             break;
                         }
                     }
 
                     if ($numeric) {
                         $object = $class->newInstanceArgs($args);
                     } else {
                         $object = $class->newInstance($args);
                     }
                 } else {
                     $object = $class->newInstance();
                 }
 
                 return $object->isValid($value);
             }
         } catch (Zend_Validate_Exception $ze) {
             // if there is an exception while validating throw it
             throw $ze;
         } catch (Exception $e) {
             // fallthrough and continue for missing validation classes
         }
 
         // require_once 'Zend/Validate/Exception.php';
         throw new Zend_Validate_Exception("Validate class not found from basename '$classBaseName'");
     }
 
     /**
      * Returns the maximum allowed message length
      *
      * @return integer
      */
     public static function getMessageLength()
     {
         // require_once 'Zend/Validate/Abstract.php';
         return Zend_Validate_Abstract::getMessageLength();
     }
 
     /**
      * Sets the maximum allowed message length
      *
      * @param integer $length
      */
     public static function setMessageLength($length = -1)
     {
         // require_once 'Zend/Validate/Abstract.php';
         Zend_Validate_Abstract::setMessageLength($length);
     }
 
     /**
      * Returns the default translation object
      *
      * @return Zend_Translate_Adapter|null
      */
     public static function getDefaultTranslator($translator = null)
     {
         // require_once 'Zend/Validate/Abstract.php';
         return Zend_Validate_Abstract::getDefaultTranslator();
     }
 
     /**
      * Sets a default translation object for all validation objects
      *
      * @param Zend_Translate|Zend_Translate_Adapter|null $translator
      */
     public static function setDefaultTranslator($translator = null)
     {
         // require_once 'Zend/Validate/Abstract.php';
         Zend_Validate_Abstract::setDefaultTranslator($translator);
     }
 }