430 Zeilen
		
	
	
	
		
			13 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			430 Zeilen
		
	
	
	
		
			13 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * Zend Framework
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|  *
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|  * LICENSE
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|  *
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|  * This source file is subject to the new BSD license that is bundled
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|  * with this package in the file LICENSE.txt.
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|  * It is also available through the world-wide-web at this URL:
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|  * http://framework.zend.com/license/new-bsd
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|  * If you did not receive a copy of the license and are unable to
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|  * obtain it through the world-wide-web, please send an email
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|  * to license@zend.com so we can send you a copy immediately.
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|  *
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|  * @category   Zend
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|  * @package    Zend_Log
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|  * @subpackage Writer
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|  * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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|  * @license    http://framework.zend.com/license/new-bsd     New BSD License
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|  * @version    $Id$
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|  */
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| 
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| /** Zend_Log_Writer_Abstract */
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| require_once 'Zend/Log/Writer/Abstract.php';
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| 
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| /** Zend_Log_Exception */
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| require_once 'Zend/Log/Exception.php';
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| 
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| /** Zend_Log_Formatter_Simple*/
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| require_once 'Zend/Log/Formatter/Simple.php';
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| 
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| /**
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|  * Class used for writing log messages to email via Zend_Mail.
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|  *
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|  * Allows for emailing log messages at and above a certain level via a
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|  * Zend_Mail object.  Note that this class only sends the email upon
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|  * completion, so any log entries accumulated are sent in a single email.
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|  *
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|  * @category   Zend
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|  * @package    Zend_Log
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|  * @subpackage Writer
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|  * @copyright  Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
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|  * @license    http://framework.zend.com/license/new-bsd     New BSD License
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|  * @version    $Id$
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|  */
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| class Zend_Log_Writer_Mail extends Zend_Log_Writer_Abstract
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| {
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|     /**
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|      * Array of formatted events to include in message body.
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|      *
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|      * @var array
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|      */
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|     protected $_eventsToMail = array();
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| 
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|     /**
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|      * Array of formatted lines for use in an HTML email body; these events
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|      * are formatted with an optional formatter if the caller is using
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|      * Zend_Layout.
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|      *
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|      * @var array
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|      */
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|     protected $_layoutEventsToMail = array();
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| 
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|     /**
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|      * Zend_Mail instance to use
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|      *
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|      * @var Zend_Mail
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|      */
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|     protected $_mail;
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| 
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|     /**
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|      * Zend_Layout instance to use; optional.
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|      *
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|      * @var Zend_Layout
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|      */
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|     protected $_layout;
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| 
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|     /**
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|      * Optional formatter for use when rendering with Zend_Layout.
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|      *
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|      * @var Zend_Log_Formatter_Interface
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|      */
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|     protected $_layoutFormatter;
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| 
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|     /**
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|      * Array keeping track of the number of entries per priority level.
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|      *
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|      * @var array
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|      */
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|     protected $_numEntriesPerPriority = array();
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| 
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|     /**
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|      * Subject prepend text.
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|      *
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|      * Can only be used of the Zend_Mail object has not already had its
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|      * subject line set.  Using this will cause the subject to have the entry
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|      * counts per-priority level appended to it.
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|      *
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|      * @var string|null
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|      */
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|     protected $_subjectPrependText;
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| 
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|     /**
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|      * MethodMap for Zend_Mail's headers
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|      *
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|      * @var array
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|      */
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|     protected static $_methodMapHeaders = array(
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|         'from' => 'setFrom',
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|         'to' => 'addTo',
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|         'cc' => 'addCc',
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|         'bcc' => 'addBcc',
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|     );
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| 
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|     /**
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|      * Class constructor.
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|      *
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|      * Constructs the mail writer; requires a Zend_Mail instance, and takes an
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|      * optional Zend_Layout instance.  If Zend_Layout is being used,
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|      * $this->_layout->events will be set for use in the layout template.
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|      *
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|      * @param  Zend_Mail $mail Mail instance
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|      * @param  Zend_Layout $layout Layout instance; optional
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|      * @return void
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|      */
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|     public function __construct(Zend_Mail $mail, Zend_Layout $layout = null)
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|     {
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|         $this->_mail = $mail;
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|         if (null !== $layout) {
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|             $this->setLayout($layout);
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|         }
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|         $this->_formatter = new Zend_Log_Formatter_Simple();
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|     }
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| 
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|     /**
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|      * Create a new instance of Zend_Log_Writer_Mail
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|      *
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|      * @param  array|Zend_Config $config
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|      * @return Zend_Log_Writer_Mail
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|      */
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|     static public function factory($config)
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|     {
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|         $config = self::_parseConfig($config);
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|         $mail = self::_constructMailFromConfig($config);
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|         $writer = new self($mail);
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| 
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|         if (isset($config['layout']) || isset($config['layoutOptions'])) {
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|             $writer->setLayout($config);
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|         }
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|         if (isset($config['layoutFormatter'])) {
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|             $layoutFormatter = new $config['layoutFormatter'];
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|             $writer->setLayoutFormatter($layoutFormatter);
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|         }
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|         if (isset($config['subjectPrependText'])) {
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|             $writer->setSubjectPrependText($config['subjectPrependText']);
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|         }
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| 
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|         return $writer;
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|     }
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| 
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|     /**
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|      * Set the layout
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|      *
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|      * @param Zend_Layout|array $layout
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|      * @return Zend_Log_Writer_Mail
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|      * @throws Zend_Log_Exception
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|      */
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|     public function setLayout($layout)
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|     {
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|         if (is_array($layout)) {
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|             $layout = $this->_constructLayoutFromConfig($layout);
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|         }
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| 
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|         if (!$layout instanceof Zend_Layout) {
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|             require_once 'Zend/Log/Exception.php';
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|             throw new Zend_Log_Exception('Mail must be an instance of Zend_Layout or an array');
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|         }
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|         $this->_layout = $layout;
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| 
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|         return $this;
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|     }
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| 
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|     /**
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|      * Construct a Zend_Mail instance based on a configuration array
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|      *
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|      * @param array $config
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|      * @return Zend_Mail
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|      * @throws Zend_Log_Exception
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|      */
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|     protected static function _constructMailFromConfig(array $config)
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|     {
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|         $mailClass = 'Zend_Mail';
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|         if (isset($config['mail'])) {
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|             $mailClass = $config['mail'];
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|         }
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| 
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|         if (!array_key_exists('charset', $config)) {
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|             $config['charset'] = null;
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|         }
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|         $mail = new $mailClass($config['charset']);
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|         if (!$mail instanceof Zend_Mail) {
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|             throw new Zend_Log_Exception($mail . 'must extend Zend_Mail');
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|         }
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| 
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|         if (isset($config['subject'])) {
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|             $mail->setSubject($config['subject']);
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|         }
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| 
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|         $headerAddresses = array_intersect_key($config, self::$_methodMapHeaders);
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|         if (count($headerAddresses)) {
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|             foreach ($headerAddresses as $header => $address) {
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|                 $method = self::$_methodMapHeaders[$header];
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|                 if (is_array($address) && isset($address['name'])
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|                     && !is_numeric($address['name'])
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|                 ) {
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|                     $params = array(
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|                         $address['email'],
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|                         $address['name']
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|                     );
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|                 } else if (is_array($address) && isset($address['email'])) {
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|                     $params = array($address['email']);
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|                 } else {
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|                     $params = array($address);
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|                 }
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|                 call_user_func_array(array($mail, $method), $params);
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|             }
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|         }
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| 
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|         return $mail;
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|     }
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| 
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|     /**
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|      * Construct a Zend_Layout instance based on a configuration array
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|      *
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|      * @param array $config
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|      * @return Zend_Layout
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|      * @throws Zend_Log_Exception
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|      */
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|     protected function _constructLayoutFromConfig(array $config)
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|     {
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|         $config = array_merge(array(
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|             'layout' => 'Zend_Layout',
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|             'layoutOptions' => null
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|         ), $config);
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| 
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|         $layoutClass = $config['layout'];
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|         $layout = new $layoutClass($config['layoutOptions']);
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|         if (!$layout instanceof Zend_Layout) {
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|             throw new Zend_Log_Exception($layout . 'must extend Zend_Layout');
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|         }
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| 
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|         return $layout;
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|     }
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| 
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|     /**
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|      * Places event line into array of lines to be used as message body.
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|      *
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|      * Handles the formatting of both plaintext entries, as well as those
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|      * rendered with Zend_Layout.
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|      *
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|      * @param  array $event Event data
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|      * @return void
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|      */
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|     protected function _write($event)
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|     {
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|         // Track the number of entries per priority level.
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|         if (!isset($this->_numEntriesPerPriority[$event['priorityName']])) {
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|             $this->_numEntriesPerPriority[$event['priorityName']] = 1;
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|         } else {
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|             $this->_numEntriesPerPriority[$event['priorityName']]++;
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|         }
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| 
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|         $formattedEvent = $this->_formatter->format($event);
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| 
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|         // All plaintext events are to use the standard formatter.
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|         $this->_eventsToMail[] = $formattedEvent;
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| 
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|         // If we have a Zend_Layout instance, use a specific formatter for the
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|         // layout if one exists.  Otherwise, just use the event with its
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|         // default format.
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|         if ($this->_layout) {
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|             if ($this->_layoutFormatter) {
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|                 $this->_layoutEventsToMail[] =
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|                     $this->_layoutFormatter->format($event);
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|             } else {
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|                 $this->_layoutEventsToMail[] = $formattedEvent;
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|             }
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|         }
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|     }
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| 
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|     /**
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|      * Gets instance of Zend_Log_Formatter_Instance used for formatting a
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|      * message using Zend_Layout, if applicable.
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|      *
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|      * @return Zend_Log_Formatter_Interface|null The formatter, or null.
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|      */
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|     public function getLayoutFormatter()
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|     {
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|         return $this->_layoutFormatter;
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|     }
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| 
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|     /**
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|      * Sets a specific formatter for use with Zend_Layout events.
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|      *
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|      * Allows use of a second formatter on lines that will be rendered with
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|      * Zend_Layout.  In the event that Zend_Layout is not being used, this
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|      * formatter cannot be set, so an exception will be thrown.
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|      *
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|      * @param  Zend_Log_Formatter_Interface $formatter
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|      * @return Zend_Log_Writer_Mail
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|      * @throws Zend_Log_Exception
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|      */
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|     public function setLayoutFormatter(Zend_Log_Formatter_Interface $formatter)
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|     {
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|         if (!$this->_layout) {
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|             throw new Zend_Log_Exception(
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|                 'cannot set formatter for layout; ' .
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|                     'a Zend_Layout instance is not in use');
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|         }
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| 
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|         $this->_layoutFormatter = $formatter;
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|         return $this;
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|     }
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| 
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|     /**
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|      * Allows caller to have the mail subject dynamically set to contain the
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|      * entry counts per-priority level.
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|      *
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|      * Sets the text for use in the subject, with entry counts per-priority
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|      * level appended to the end.  Since a Zend_Mail subject can only be set
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|      * once, this method cannot be used if the Zend_Mail object already has a
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|      * subject set.
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|      *
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|      * @param  string $subject Subject prepend text.
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|      * @return Zend_Log_Writer_Mail
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|      * @throws Zend_Log_Exception
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|      */
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|     public function setSubjectPrependText($subject)
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|     {
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|         if ($this->_mail->getSubject()) {
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|             throw new Zend_Log_Exception(
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|                 'subject already set on mail; ' .
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|                     'cannot set subject prepend text');
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|         }
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| 
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|         $this->_subjectPrependText = (string) $subject;
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|         return $this;
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|     }
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| 
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|     /**
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|      * Sends mail to recipient(s) if log entries are present.  Note that both
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|      * plaintext and HTML portions of email are handled here.
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|      *
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|      * @return void
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|      */
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|     public function shutdown()
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|     {
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|         // If there are events to mail, use them as message body.  Otherwise,
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|         // there is no mail to be sent.
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|         if (empty($this->_eventsToMail)) {
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|             return;
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|         }
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| 
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|         if ($this->_subjectPrependText !== null) {
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|             // Tack on the summary of entries per-priority to the subject
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|             // line and set it on the Zend_Mail object.
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|             $numEntries = $this->_getFormattedNumEntriesPerPriority();
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|             $this->_mail->setSubject(
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|                 "{$this->_subjectPrependText} ({$numEntries})");
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|         }
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| 
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| 
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|         // Always provide events to mail as plaintext.
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|         $this->_mail->setBodyText(implode('', $this->_eventsToMail));
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| 
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|         // If a Zend_Layout instance is being used, set its "events"
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|         // value to the lines formatted for use with the layout.
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|         if ($this->_layout) {
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|             // Set the required "messages" value for the layout.  Here we
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|             // are assuming that the layout is for use with HTML.
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|             $this->_layout->events =
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|                 implode('', $this->_layoutEventsToMail);
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| 
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|             // If an exception occurs during rendering, convert it to a notice
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|             // so we can avoid an exception thrown without a stack frame.
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|             try {
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|                 $this->_mail->setBodyHtml($this->_layout->render());
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|             } catch (Exception $e) {
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|                 trigger_error(
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|                     "exception occurred when rendering layout; " .
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|                         "unable to set html body for message; " .
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|                         "message = {$e->getMessage()}; " .
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|                         "code = {$e->getCode()}; " .
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|                         "exception class = " . get_class($e),
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|                     E_USER_NOTICE);
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|             }
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|         }
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| 
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|         // Finally, send the mail.  If an exception occurs, convert it into a
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|         // warning-level message so we can avoid an exception thrown without a
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|         // stack frame.
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|         try {
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|             $this->_mail->send();
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|         } catch (Exception $e) {
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|             trigger_error(
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|                 "unable to send log entries via email; " .
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|                     "message = {$e->getMessage()}; " .
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|                     "code = {$e->getCode()}; " .
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|                         "exception class = " . get_class($e),
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|                 E_USER_WARNING);
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|         }
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|     }
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| 
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|     /**
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|      * Gets a string of number of entries per-priority level that occurred, or
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|      * an emptry string if none occurred.
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|      *
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|      * @return string
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|      */
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|     protected function _getFormattedNumEntriesPerPriority()
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|     {
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|         $strings = array();
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| 
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|         foreach ($this->_numEntriesPerPriority as $priority => $numEntries) {
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|             $strings[] = "{$priority}={$numEntries}";
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|         }
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| 
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|         return implode(', ', $strings);
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|     }
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| }
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