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<?php
declare(strict_types=1);
/**
* CakePHP(tm) : Rapid Development Framework (https://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org/)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (https://cakefoundation.org/)
* @link https://cakephp.org CakePHP(tm) Project
* @since 0.1.0
* @license https://opensource.org/licenses/MIT MIT License
*/
namespace Cake\Enqueue;
use Cake\Database\Connection;
use Cake\Datasource\ConnectionManager;
use Enqueue\Dsn\Dsn;
use Interop\Queue\ConnectionFactory;
use Interop\Queue\Context;
use Interop\Queue\Exception\Exception;
class CakeConnectionFactory implements ConnectionFactory
{
/**
* @var array
*/
private array $config;
/**
* @var \Cake\Database\Connection|null
*/
private ?Connection $connection = null;
/**
* The config could be an array, string DSN or null. In case of null it will attempt to connect to mysql localhost with default credentials.
*
* $config = [
* 'connection' => [] - cakephp connection options.
* 'table_name' => 'enqueue', - database table name.
* 'polling_interval' => '1000', - How often query for new messages (milliseconds)
* 'lazy' => true, - Use lazy database connection (boolean)
* ]
*
* DSN Format Examples:
* - cakephp://default - Use 'default' connection with default settings
* - cakephp://test - Use 'test' connection with default settings
* - cakephp://default?table_name=queue&polling_interval=500&lazy=false
* - cakephp://test?table_name=test_queue&polling_interval=2000
* - cakephp://production?table_name=prod_queue&polling_interval=1000&lazy=true
*
* @param array|string|null $config Connection settings.
*/
public function __construct(array|string|null $config = 'cakephp://default')
{
if (is_array($config)) {
$parsedConfig = $config;
} elseif (is_string($config)) {
$parsedConfig = $this->parseDsn($config);
} else {
$parsedConfig = ['connection' => 'default'];
}
$this->config = array_replace_recursive(
[
'connection' => 'default',
'table_name' => 'enqueue',
'polling_interval' => 1000,
'lazy' => true,
],
$parsedConfig,
);
}
/**
* @return \Cake\Enqueue\CakeContext
*/
public function createContext(): Context
{
if ($this->config['lazy']) {
return new CakeContext(function () {
return $this->establishConnection();
}, $this->config);
}
return new CakeContext($this->establishConnection(), $this->config);
}
/**
* @return void
*/
public function close(): void
{
if ($this->connection) {
$this->connection->getDriver()->disconnect();
}
}
/**
* @return \Cake\Database\Connection
*/
private function establishConnection(): Connection
{
if ($this->connection == false) {
$this->connection = ConnectionManager::get($this->config['connection']);
$this->connection->getDriver()->connect();
}
return $this->connection;
}
/**
* @param string $dsn DSN string.
* @param array|null $config Configuration.
* @return array
* @throws \Interop\Queue\Exception\Exception
*/
public function parseDsn(string $dsn, ?array $config = null): array
{
$parsedDsn = Dsn::parseFirst($dsn);
if ($parsedDsn->getScheme() !== 'cakephp') {
throw new Exception('Wrong dsn schema passed. Accepted only cakephp schema.');
}
$connectionName = $parsedDsn->getHost();
if (empty($connectionName)) {
$connectionName = 'default';
}
$query = $parsedDsn->getQuery();
$configOverrides = [];
foreach ($query as $key => $value) {
switch ($key) {
case 'polling_interval':
$configOverrides[$key] = (int)$value;
break;
case 'lazy':
$configOverrides[$key] = filter_var($value, FILTER_VALIDATE_BOOLEAN);
break;
case 'table_name':
case 'connection':
default:
$configOverrides[$key] = $value;
break;
}
}
return array_merge([
'connection' => $connectionName,
'lazy' => true,
], $configOverrides);
}
}