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| 1 | <?php |
| 2 | |
| 3 | namespace App\Services; |
| 4 | |
| 5 | use Illuminate\Support\Facades\Log; |
| 6 | use PhpAmqpLib\Connection\AMQPStreamConnection; |
| 7 | use PhpAmqpLib\Message\AMQPMessage; |
| 8 | use PhpAmqpLib\Channel\AbstractChannel; |
| 9 | |
| 10 | class RabbitMQService |
| 11 | { |
| 12 | protected $connection; |
| 13 | protected $channel; |
| 14 | private mixed $user; |
| 15 | private mixed $pass; |
| 16 | private mixed $host; |
| 17 | private mixed $port; |
| 18 | private string $queueListUrl; |
| 19 | private mixed $apiHost; |
| 20 | private mixed $queue; |
| 21 | private mixed $consumers; |
| 22 | |
| 23 | /** |
| 24 | * RabbitMQService constructor. |
| 25 | * |
| 26 | * @throws \Exception |
| 27 | */ |
| 28 | public function __construct() |
| 29 | { |
| 30 | // Get configs |
| 31 | $this->user = env('RABBIT_USER'); |
| 32 | $this->pass = env('RABBIT_PASS'); |
| 33 | $this->host = env('RABBIT_HOST'); |
| 34 | $this->port = env('RABBIT_PORT'); |
| 35 | $this->apiHost = env('RABBIT_API_HOST'); |
| 36 | $this->queue = env('RABBIT_MESSAGE_QUEUE'); |
| 37 | $this->consumers = env('RABBIT_CONSUMERS_LIMIT'); |
| 38 | |
| 39 | // API url |
| 40 | $this->queueListUrl = "{$this->apiHost}/queues/%2F/{$this->queue}"; |
| 41 | |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * @throws \Exception |
| 46 | */ |
| 47 | public function createConnection($isScheduled): void |
| 48 | { |
| 49 | try { |
| 50 | |
| 51 | if ($isScheduled) { |
| 52 | |
| 53 | // Create connection |
| 54 | $this->connection = new AMQPStreamConnection( |
| 55 | $this->host, $this->port, $this->user, $this->pass, |
| 56 | '/', |
| 57 | false, |
| 58 | 'AMQPLAIN', |
| 59 | null, |
| 60 | 'en_US', |
| 61 | 160 |
| 62 | ); |
| 63 | |
| 64 | // Create channel |
| 65 | $this->channel = $this->connection->channel(); |
| 66 | |
| 67 | } else { |
| 68 | $this->connection = null; |
| 69 | } |
| 70 | |
| 71 | } catch (\Exception $e) { |
| 72 | |
| 73 | // Log the exception message |
| 74 | Log::channel('messages') |
| 75 | ->error('Error in RabbitMQService constructor: ' . $e->getMessage()); |
| 76 | |
| 77 | // Rethrow the exception |
| 78 | throw $e; |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Get the AMQPStreamConnection instance. |
| 84 | * |
| 85 | * @return AMQPStreamConnection |
| 86 | */ |
| 87 | public function getConnection(): AMQPStreamConnection |
| 88 | { |
| 89 | return $this->connection; |
| 90 | } |
| 91 | |
| 92 | /** |
| 93 | * Get the AMQP channel instance. |
| 94 | * |
| 95 | * @return AbstractChannel |
| 96 | */ |
| 97 | public function getChannel(): AbstractChannel |
| 98 | { |
| 99 | return $this->channel; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Publish a message to the specified RabbitMQ queue. |
| 104 | * |
| 105 | * @param string $queue |
| 106 | * @param mixed $message |
| 107 | * @return void |
| 108 | */ |
| 109 | public function publishMessage(string $queue, mixed $message): void |
| 110 | { |
| 111 | $this->channel->basic_publish(new AMQPMessage($message), '', $queue); |
| 112 | } |
| 113 | |
| 114 | /** |
| 115 | * Close the RabbitMQ channel and connection. |
| 116 | * |
| 117 | * @throws \Exception |
| 118 | */ |
| 119 | public function closeConnection(): void |
| 120 | { |
| 121 | $this->channel->close(); |
| 122 | $this->connection->close(); |
| 123 | } |
| 124 | |
| 125 | /** |
| 126 | * Get the number of current consumers of this queue via API. |
| 127 | * |
| 128 | * @return int |
| 129 | * @throws \Exception |
| 130 | */ |
| 131 | public function getConsumers(): int |
| 132 | { |
| 133 | $ch = curl_init($this->queueListUrl); |
| 134 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
| 135 | curl_setopt($ch, CURLOPT_USERPWD, "$this->user:$this->pass"); |
| 136 | |
| 137 | $response = curl_exec($ch); |
| 138 | |
| 139 | if ($response === false) { |
| 140 | $error = curl_error($ch); |
| 141 | curl_close($ch); |
| 142 | |
| 143 | // Throw an exception with the error message |
| 144 | Log::channel('messages') |
| 145 | ->error('Error checking information about the queues: ' . curl_error($ch)); |
| 146 | |
| 147 | throw new \Exception('Error checking information about the queues: ' . $error . ' No consumers up now.'); |
| 148 | } |
| 149 | |
| 150 | curl_close($ch); |
| 151 | $queueInfo = json_decode($response, true); |
| 152 | |
| 153 | // Check if 'consumers' key exists in the response |
| 154 | if (isset($queueInfo['consumers'])) { |
| 155 | return $queueInfo['consumers']; |
| 156 | } else { |
| 157 | // Throw an exception if 'consumers' key is not present |
| 158 | Log::channel('messages') |
| 159 | ->error('Error: Unable to retrieve the number of consumers.'); |
| 160 | |
| 161 | throw new \Exception('Error: Unable to retrieve the number of consumers. No consumers up now.'); |
| 162 | } |
| 163 | } |
| 164 | |
| 165 | |
| 166 | public function setConnection($connection): void |
| 167 | { |
| 168 | $this->connection = $connection; |
| 169 | } |
| 170 | |
| 171 | public function setChannel($channel): void |
| 172 | { |
| 173 | $this->channel = $channel; |
| 174 | } |
| 175 | |
| 176 | |
| 177 | } |