diff options
author | Yuchen Pei <hi@ypei.me> | 2021-10-15 09:52:00 +1100 |
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committer | Yuchen Pei <hi@ypei.me> | 2021-10-15 09:52:00 +1100 |
commit | 71b0e901f5fb1cfcd162d8acc23120d3f77a3152 (patch) | |
tree | 323c00faef1edc7dea2e88ff581cc2258b2b6432 /External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php | |
parent | 72cce24864b064b5762f4fe97fdf40d8d2ad4b51 (diff) | |
parent | 07f5140771388c9e0c8a99b0dd2e5d950bdb173b (diff) |
Merge branch 'development' into h-node
Diffstat (limited to 'External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php')
-rwxr-xr-x | External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php b/External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php new file mode 100755 index 0000000..367981b --- /dev/null +++ b/External/swiftmailer/lib/classes/Swift/Transport/LoadBalancedTransport.php @@ -0,0 +1,188 @@ +<?php + +/* + * This file is part of SwiftMailer. + * (c) 2004-2009 Chris Corbyn + * + * For the full copyright and license information, please view the LICENSE + * file that was distributed with this source code. + */ + +//@require 'Swift/Transport.php'; +//@require 'Swift/Mime/Message.php'; +//@require 'Swift/Events/EventListener.php'; + +/** + * Redudantly and rotationally uses several Transports when sending. + * + * @package Swift + * @subpackage Transport + * @author Chris Corbyn + */ +class Swift_Transport_LoadBalancedTransport implements Swift_Transport +{ + + /** Transports which are deemed useless */ + private $_deadTransports = array(); + + /** + * The Transports which are used in rotation. + * + * @var array Swift_Transport + * @access protected + */ + protected $_transports = array(); + + /** + * Creates a new LoadBalancedTransport. + */ + public function __construct() + { + } + + /** + * Set $transports to delegate to. + * + * @param array $transports Swift_Transport + */ + public function setTransports(array $transports) + { + $this->_transports = $transports; + $this->_deadTransports = array(); + } + + /** + * Get $transports to delegate to. + * + * @return array Swift_Transport + */ + public function getTransports(array $transports) + { + return array_merge($this->_transports, $this->_deadTransports); + } + + /** + * Test if this Transport mechanism has started. + * + * @return boolean + */ + public function isStarted() + { + return count($this->_transports) > 0; + } + + /** + * Start this Transport mechanism. + */ + public function start() + { + $this->_transports = array_merge($this->_transports, $this->_deadTransports); + } + + /** + * Stop this Transport mechanism. + */ + public function stop() + { + foreach ($this->_transports as $transport) + { + $transport->stop(); + } + } + + /** + * Send the given Message. + * + * Recipient/sender data will be retreived from the Message API. + * The return value is the number of recipients who were accepted for delivery. + * + * @param Swift_Mime_Message $message + * @param string[] &$failedRecipients to collect failures by-reference + * @return int + */ + public function send(Swift_Mime_Message $message, &$failedRecipients = null) + { + $maxTransports = count($this->_transports); + $sent = 0; + + for ($i = 0; $i < $maxTransports + && $transport = $this->_getNextTransport(); ++$i) + { + try + { + if (!$transport->isStarted()) + { + $transport->start(); + } + if ($sent = $transport->send($message, $failedRecipients)) + { + break; + } + } + catch (Swift_TransportException $e) + { + $this->_killCurrentTransport(); + } + } + + if (count($this->_transports) == 0) + { + throw new Swift_TransportException( + 'All Transports in LoadBalancedTransport failed, or no Transports available' + ); + } + + return $sent; + } + + /** + * Register a plugin. + * + * @param Swift_Events_EventListener $plugin + */ + public function registerPlugin(Swift_Events_EventListener $plugin) + { + foreach ($this->_transports as $transport) + { + $transport->registerPlugin($plugin); + } + } + + // -- Protected methods + + /** + * Rotates the transport list around and returns the first instance. + * + * @return Swift_Transport + * @access protected + */ + protected function _getNextTransport() + { + if ($next = array_shift($this->_transports)) + { + $this->_transports[] = $next; + } + return $next; + } + + /** + * Tag the currently used (top of stack) transport as dead/useless. + * + * @access protected + */ + protected function _killCurrentTransport() + { + if ($transport = array_pop($this->_transports)) + { + try + { + $transport->stop(); + } + catch (Exception $e) + { + } + $this->_deadTransports[] = $transport; + } + } + +} |