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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_Abstract
  */
 // require_once 'Zend/Validate/Abstract.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_NotEmpty extends Zend_Validate_Abstract
 {
     const BOOLEAN       = 1;
     const INTEGER       = 2;
     const FLOAT         = 4;
     const STRING        = 8;
     const ZERO          = 16;
     const EMPTY_ARRAY   = 32;
     const NULL          = 64;
     const PHP           = 127;
     const SPACE         = 128;
     const OBJECT        = 256;
     const OBJECT_STRING = 512;
     const OBJECT_COUNT  = 1024;
     const ALL           = 2047;
 
     const INVALID  = 'notEmptyInvalid';
     const IS_EMPTY = 'isEmpty';
 
     protected $_constants = array(
         self::BOOLEAN       => 'boolean',
         self::INTEGER       => 'integer',
         self::FLOAT         => 'float',
         self::STRING        => 'string',
         self::ZERO          => 'zero',
         self::EMPTY_ARRAY   => 'array',
         self::NULL          => 'null',
         self::PHP           => 'php',
         self::SPACE         => 'space',
         self::OBJECT        => 'object',
         self::OBJECT_STRING => 'objectstring',
         self::OBJECT_COUNT  => 'objectcount',
         self::ALL           => 'all',
     );
 
     /**
      * @var array
      */
     protected $_messageTemplates = array(
         self::IS_EMPTY => "Value is required and can't be empty",
         self::INVALID  => "Invalid type given. String, integer, float, boolean or array expected",
     );
 
     /**
      * Internal type to detect
      *
      * @var integer
      */
     protected $_type = 493;
 
     /**
      * Constructor
      *
      * @param string|array|Zend_Config $options OPTIONAL
      */
     public function __construct($options = null)
     {
         if ($options instanceof Zend_Config) {
             $options = $options->toArray();
         } else if (!is_array($options)) {
             $options = func_get_args();
             $temp    = array();
             if (!empty($options)) {
                 $temp['type'] = array_shift($options);
             }
 
             $options = $temp;
         }
 
         if (is_array($options) && array_key_exists('type', $options)) {
             $this->setType($options['type']);
         }
     }
 
     /**
      * Returns the set types
      *
      * @return array
      */
     public function getType()
     {
         return $this->_type;
     }
 
     /**
      * Set the types
      *
      * @param  integer|array $type
      * @throws Zend_Validate_Exception
      * @return Zend_Validate_NotEmpty
      */
     public function setType($type = null)
     {
         if (is_array($type)) {
             $detected = 0;
             foreach($type as $value) {
                 if (is_int($value)) {
                     $detected += $value;
                 } else if (in_array($value, $this->_constants)) {
                     $detected += array_search($value, $this->_constants);
                 }
             }
 
             $type = $detected;
         } else if (is_string($type) && in_array($type, $this->_constants)) {
             $type = array_search($type, $this->_constants);
         }
 
         if (!is_int($type) || ($type < 0) || ($type > self::ALL)) {
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception('Unknown type');
         }
 
         $this->_type = $type;
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if $value is not an empty value.
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         if ($value !== null && !is_string($value) && !is_int($value) && !is_float($value) &&
             !is_bool($value) && !is_array($value) && !is_object($value)) {
             $this->_error(self::INVALID);
             return false;
         }
 
         $type    = $this->getType();
         $this->_setValue($value);
         $object  = false;
 
         // OBJECT_COUNT (countable object)
         if ($type >= self::OBJECT_COUNT) {
             $type -= self::OBJECT_COUNT;
             $object = true;
 
             if (is_object($value) && ($value instanceof Countable) && (count($value) == 0)) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // OBJECT_STRING (object's toString)
         if ($type >= self::OBJECT_STRING) {
             $type -= self::OBJECT_STRING;
             $object = true;
 
             if ((is_object($value) && (!method_exists($value, '__toString'))) ||
                 (is_object($value) && (method_exists($value, '__toString')) && (((string) $value) == ""))) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // OBJECT (object)
         if ($type >= self::OBJECT) {
             $type -= self::OBJECT;
             // fall trough, objects are always not empty
         } else if ($object === false) {
             // object not allowed but object given -> return false
             if (is_object($value)) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // SPACE ('   ')
         if ($type >= self::SPACE) {
             $type -= self::SPACE;
             if (is_string($value) && (preg_match('/^\s+$/s', $value))) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // NULL (null)
         if ($type >= self::NULL) {
             $type -= self::NULL;
             if ($value === null) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // EMPTY_ARRAY (array())
         if ($type >= self::EMPTY_ARRAY) {
             $type -= self::EMPTY_ARRAY;
             if (is_array($value) && ($value == array())) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // ZERO ('0')
         if ($type >= self::ZERO) {
             $type -= self::ZERO;
             if (is_string($value) && ($value == '0')) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // STRING ('')
         if ($type >= self::STRING) {
             $type -= self::STRING;
             if (is_string($value) && ($value == '')) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // FLOAT (0.0)
         if ($type >= self::FLOAT) {
             $type -= self::FLOAT;
             if (is_float($value) && ($value == 0.0)) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // INTEGER (0)
         if ($type >= self::INTEGER) {
             $type -= self::INTEGER;
             if (is_int($value) && ($value == 0)) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         // BOOLEAN (false)
         if ($type >= self::BOOLEAN) {
             $type -= self::BOOLEAN;
             if (is_bool($value) && ($value == false)) {
                 $this->_error(self::IS_EMPTY);
                 return false;
             }
         }
 
         return true;
     }
 }