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<?php |
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namespace lroman242\LaravelCassandra; |
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use Illuminate\Database\Connectors\Connector; |
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use Illuminate\Queue\Connectors\ConnectorInterface; |
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class CassandraConnector extends Connector implements ConnectorInterface |
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{ |
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const DEFAULT_PAGE_SIZE = 5000; |
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/** |
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* Cassandra Cluster Builder instance |
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* |
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* @var \Cassandra\Cluster\Builder |
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*/ |
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protected $builder; |
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/** |
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* Establish a database connection. |
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* |
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* @param array $config |
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* |
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* @return \Cassandra\Cluster |
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*/ |
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public function connect(array $config) |
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{ |
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$this->builder = \Cassandra::cluster(); |
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$this->setConnectionOptions($config); |
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$this->setDefaultQueryOptions($config); |
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return $this->builder->build(); |
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} |
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/** |
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* Set username and password to cluster connection. |
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* Set cluster contact points (IP addresses) |
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* Set connection communication port |
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* |
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* @param array $config |
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*/ |
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protected function setConnectionOptions(array $config) |
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{ |
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// Authentication |
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list($username, $password) = [ |
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$config['username'] ?? null, $config['password'] ?? null, |
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]; |
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$this->builder->withCredentials($username, $password); |
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call_user_func_array([$this->builder, 'withContactPoints'], $this->getContactPoints($config)); |
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$this->builder->withPort($this->getPort($config)); |
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} |
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/** |
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* Parse contact points list from config |
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* |
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* @param array $config |
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* |
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* @return array |
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*/ |
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protected function getContactPoints(array $config) |
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{ |
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$contactPoints = []; |
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if (!empty($config['host'])) { |
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$contactPoints = $config['host']; |
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if (is_string($contactPoints)) { |
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$contactPoints = explode(',', $contactPoints); |
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} |
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} |
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return (array) $contactPoints; |
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} |
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/** |
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* Parse communication port or set default |
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* |
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* @param array $config |
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* |
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* @return int |
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*/ |
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protected function getPort(array $config) |
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{ |
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return !empty($config['port']) ? (int)$config['port'] : 9042; |
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} |
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/** |
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* Set default consistency level |
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* Set default timeouts to queries |
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* Set default response size to queries |
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* |
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* @param array $config |
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*/ |
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protected function setDefaultQueryOptions(array $config) |
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{ |
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if (isset($config['consistency']) && in_array($config['consistency'], [ |
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\Cassandra::CONSISTENCY_ANY, \Cassandra::CONSISTENCY_ONE, \Cassandra::CONSISTENCY_TWO, |
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\Cassandra::CONSISTENCY_THREE, \Cassandra::CONSISTENCY_QUORUM, \Cassandra::CONSISTENCY_ALL, |
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\Cassandra::CONSISTENCY_SERIAL, \Cassandra::CONSISTENCY_QUORUM, \Cassandra::CONSISTENCY_LOCAL_QUORUM, |
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\Cassandra::CONSISTENCY_EACH_QUORUM, \Cassandra::CONSISTENCY_LOCAL_SERIAL, \Cassandra::CONSISTENCY_LOCAL_ONE, |
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])) { |
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$this->builder->withDefaultConsistency($config['consistency']); |
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} |
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if (!empty($config['timeout'])) { |
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$this->builder->withDefaultTimeout(intval($config['timeout'])); |
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} |
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if (!empty($config['connect_timeout'])) { |
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$this->builder->withConnectTimeout(floatval($config['connect_timeout'])); |
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} |
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if (!empty($config['request_timeout'])) { |
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$this->builder->withRequestTimeout(floatval($config['request_timeout'])); |
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} |
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$this->builder->withDefaultPageSize(intval(!empty($config['page_size']) ? $config['page_size'] : self::DEFAULT_PAGE_SIZE)); |
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} |
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} |
lroman242 /
laravel-cassandra
