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<?php /** MicroQueue */ |
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namespace Micro\Queue\Drivers; |
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use Micro\Base\Exception; |
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/** |
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* Queue class file. |
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* |
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* @author Oleg Lunegov <[email protected]> |
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* @link https://github.com/linpax/microphp-framework |
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* @copyright Copyright (c) 2013 Oleg Lunegov |
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* @license https://github.com/linpax/microphp-framework/blob/master/LICENSE |
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* @package Micro |
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* @subpackage Queue |
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* @version 1.0 |
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* @since 1.0 |
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*/ |
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class Queue |
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{ |
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/** @var array $servers Configuration servers */ |
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protected $servers = []; |
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/** @var array $routes Configuration routes */ |
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protected $routes = []; |
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/** @var array $brokers Started servers */ |
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protected $brokers = []; |
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/** |
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* Initialize Queue manager |
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* |
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* @access public |
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* |
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* @param array $servers |
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* @param array $routes |
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* |
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* @result void |
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*/ |
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public function __construct(array $servers = [], array $routes = []) |
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{ |
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$this->servers = $servers; |
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$this->routes = $routes; |
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} |
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/** |
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* Send message into service on selected server |
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* |
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* @access public |
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* |
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* @param string $route |
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* @param array $data |
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* @param string $type |
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* @param int $retry |
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* |
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* @return mixed |
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* @throws Exception |
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*/ |
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public function send($route, array $data = [], $type = 'sync', $retry = 5) |
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{ |
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$broker = $this->getBroker($route, $type, $retry); |
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switch ($type) { |
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case 'sync': |
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case 'async': |
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case 'stream': |
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break; |
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default: |
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throw new Exception('Service type `'.$type.'` wrong name.'); |
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} |
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return $broker->{$type}($route, $data); |
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} |
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/** |
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* @param string $uri |
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* @param string $type |
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* @param string $retry |
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* |
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* @return \Micro\queue\Adapter |
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* @throws Exception |
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*/ |
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private function getBroker($uri, $type, $retry) |
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{ |
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$servers = $this->getServersFromRoute($this->getRoute($uri), $type); |
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$server = null; |
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for ($counter = 0; $counter < $retry; $counter++) { |
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$random = mt_rand(0, count($servers) - 1); |
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if (!array_key_exists($servers[$random], $this->brokers)) { |
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$cls = $this->servers[$servers[$random]]; |
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$this->brokers[$servers[$random]] = new $cls['class']($cls); |
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} |
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/** @noinspection PhpUndefinedMethodInspection */ |
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if ($this->brokers[$servers[$random]]->test()) { |
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$server = $servers[$random]; |
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} |
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} |
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if (!$server) { |
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throw new Exception('Message not send, random servers is down into `'.$uri.'`'); |
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} |
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return $this->brokers[$server]; |
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} |
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/** |
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* Get servers list from routing rule |
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* |
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* @access protected |
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* |
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* @param array $route Routing rule |
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* @param string $type Sending type |
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* |
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* @return array |
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* @throws Exception |
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*/ |
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protected function getServersFromRoute(array $route, $type = '*') |
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{ |
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$servers = []; |
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foreach ($route AS $key => $val) { |
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if (is_string($val)) { |
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$route['*'] = [$val]; |
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unset($route[$key]); |
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} |
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} |
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if (array_key_exists($type, $route)) { |
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$servers += $route[$type]; |
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} |
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if (array_key_exists('*', $route)) { |
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$servers += $route['*']; |
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} |
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if (!$servers) { |
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throw new Exception('Type `'.$type.'` not found into route'); |
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} |
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return $servers; |
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} |
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/** |
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* Get rules from route by pattern |
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* |
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* @access protected |
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* |
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* @param string $uri URI for match |
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* |
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* @return array Rules for URI |
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* @throws Exception |
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*/ |
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protected function getRoute($uri) |
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{ |
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$keys = array_keys($this->routes); |
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foreach (range(0, count($keys) - 1) AS $i) { |
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if (preg_match('/'.$keys[$i].'/', $uri)) { |
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if (!is_array($this->routes[$keys[$i]])) { |
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$this->routes[$keys[$i]] = ['*' => $this->routes[$keys[$i]]]; |
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} |
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return $this->routes[$keys[$i]]; |
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} |
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} |
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throw new Exception('Route `'.$uri.'` not found'); |
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} |
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} |
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linpax /
microphp-framework
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.