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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';
 
 /**
  * @see Zend_Loader
  */
 // require_once 'Zend/Loader.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_Barcode extends Zend_Validate_Abstract
 {
     const INVALID        = 'barcodeInvalid';
     const FAILED         = 'barcodeFailed';
     const INVALID_CHARS  = 'barcodeInvalidChars';
     const INVALID_LENGTH = 'barcodeInvalidLength';
 
     protected $_messageTemplates = array(
         self::FAILED         => "'%value%' failed checksum validation",
         self::INVALID_CHARS  => "'%value%' contains invalid characters",
         self::INVALID_LENGTH => "'%value%' should have a length of %length% characters",
         self::INVALID        => "Invalid type given. String expected",
     );
 
     /**
      * Additional variables available for validation failure messages
      *
      * @var array
      */
     protected $_messageVariables = array(
         'length' => '_length'
     );
 
     /**
      * Length for the set subtype
      *
      * @var integer
      */
     protected $_length;
 
     /**
      * Barcode adapter
      *
      * @var Zend_Validate_Barcode_BarcodeAdapter
      */
     protected $_adapter;
 
     /**
      * Generates the standard validator object
      *
      * @param  string|Zend_Config|
      *         Zend_Validate_Barcode_BarcodeAdapter $adapter Barcode adapter to use
      * @throws Zend_Validate_Exception
      */
     public function __construct($adapter)
     {
         if ($adapter instanceof Zend_Config) {
             $adapter = $adapter->toArray();
         }
 
         $options  = null;
         $checksum = null;
         if (is_array($adapter)) {
             if (array_key_exists('options', $adapter)) {
                 $options = $adapter['options'];
             }
 
             if (array_key_exists('checksum', $adapter)) {
                 $checksum = $adapter['checksum'];
             }
 
             if (array_key_exists('adapter', $adapter)) {
                 $adapter = $adapter['adapter'];
             } else {
                 // require_once 'Zend/Validate/Exception.php';
                 throw new Zend_Validate_Exception("Missing option 'adapter'");
             }
         }
 
         $this->setAdapter($adapter, $options);
         if ($checksum !== null) {
             $this->setChecksum($checksum);
         }
     }
 
     /**
      * Returns the set adapter
      *
      * @return Zend_Validate_Barcode_BarcodeAdapter
      */
     public function getAdapter()
     {
         return $this->_adapter;
     }
 
     /**
      * Sets a new barcode adapter
      *
      * @param  string|Zend_Validate_Barcode $adapter Barcode adapter to use
      * @param  array  $options Options for this adapter
      * @return $this
      * @throws Zend_Validate_Exception
      */
     public function setAdapter($adapter, $options = null)
     {
         $adapter = ucfirst(strtolower($adapter));
         // require_once 'Zend/Loader.php';
         if (Zend_Loader::isReadable('Zend/Validate/Barcode/' . $adapter. '.php')) {
             $adapter = 'Zend_Validate_Barcode_' . $adapter;
         }
 
         if (!class_exists($adapter)) {
             Zend_Loader::loadClass($adapter);
         }
 
         $this->_adapter = new $adapter($options);
         if (!$this->_adapter instanceof Zend_Validate_Barcode_AdapterInterface) {
             // require_once 'Zend/Validate/Exception.php';
             throw new Zend_Validate_Exception(
                 "Adapter " . $adapter . " does not implement Zend_Validate_Barcode_AdapterInterface"
             );
         }
 
         return $this;
     }
 
     /**
      * Returns the checksum option
      *
      * @return boolean
      */
     public function getChecksum()
     {
         return $this->getAdapter()->getCheck();
     }
 
     /**
      * Sets the checksum option
      *
      * @param  boolean $checksum
      * @return Zend_Validate_Barcode
      */
     public function setChecksum($checksum)
     {
         $this->getAdapter()->setCheck($checksum);
         return $this;
     }
 
     /**
      * Defined by Zend_Validate_Interface
      *
      * Returns true if and only if $value contains a valid barcode
      *
      * @param  string $value
      * @return boolean
      */
     public function isValid($value)
     {
         if (!is_string($value)) {
             $this->_error(self::INVALID);
             return false;
         }
 
         $this->_setValue($value);
         $adapter       = $this->getAdapter();
         $this->_length = $adapter->getLength();
         $result        = $adapter->checkLength($value);
         if (!$result) {
             if (is_array($this->_length)) {
                 $temp = $this->_length;
                 $this->_length = "";
                 foreach($temp as $length) {
                     $this->_length .= "/";
                     $this->_length .= $length;
                 }
 
                 $this->_length = substr($this->_length, 1);
             }
 
             $this->_error(self::INVALID_LENGTH);
             return false;
         }
 
         $result = $adapter->checkChars($value);
         if (!$result) {
             $this->_error(self::INVALID_CHARS);
             return false;
         }
 
         if ($this->getChecksum()) {
             $result = $adapter->checksum($value);
             if (!$result) {
                 $this->_error(self::FAILED);
                 return false;
             }
         }
 
         return true;
     }
 }