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<?php |
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namespace MySQLReplication\Event; |
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use MySQLReplication\BinaryDataReader\BinaryDataReader; |
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use MySQLReplication\BinaryDataReader\BinaryDataReaderException; |
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use MySQLReplication\BinLog\BinLogException; |
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use MySQLReplication\BinLog\BinLogSocketConnect; |
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use MySQLReplication\Config\Config; |
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use MySQLReplication\Definitions\ConstEventType; |
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use MySQLReplication\Event\DTO\EventDTO; |
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use MySQLReplication\Event\DTO\FormatDescriptionEventDTO; |
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use MySQLReplication\Event\DTO\HeartbeatDTO; |
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use MySQLReplication\Event\RowEvent\RowEventFactory; |
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use MySQLReplication\Exception\MySQLReplicationException; |
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use MySQLReplication\JsonBinaryDecoder\JsonBinaryDecoderException; |
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use MySQLReplication\Socket\SocketException; |
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use Psr\SimpleCache\CacheInterface; |
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use Psr\SimpleCache\InvalidArgumentException; |
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use Symfony\Component\EventDispatcher\EventDispatcher; |
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/** |
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* Class Event |
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* @package MySQLReplication\Event |
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*/ |
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class Event |
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{ |
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/** |
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* @var BinLogSocketConnect |
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*/ |
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private $binLogSocketConnect; |
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/** |
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* @var RowEventFactory |
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*/ |
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private $rowEventFactory; |
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/** |
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* @var EventDispatcher |
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*/ |
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private $eventDispatcher; |
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/** |
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* @var CacheInterface |
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*/ |
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private $cache; |
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/** |
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* BinLogPack constructor. |
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* @param BinLogSocketConnect $binLogSocketConnect |
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* @param RowEventFactory $rowEventFactory |
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* @param EventDispatcher $eventDispatcher |
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* @param CacheInterface $cache |
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*/ |
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public function __construct( |
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BinLogSocketConnect $binLogSocketConnect, |
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RowEventFactory $rowEventFactory, |
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EventDispatcher $eventDispatcher, |
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CacheInterface $cache |
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) { |
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$this->binLogSocketConnect = $binLogSocketConnect; |
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$this->rowEventFactory = $rowEventFactory; |
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$this->eventDispatcher = $eventDispatcher; |
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$this->cache = $cache; |
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} |
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/** |
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* @throws BinaryDataReaderException |
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* @throws BinLogException |
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* @throws EventException |
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* @throws MySQLReplicationException |
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* @throws JsonBinaryDecoderException |
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* @throws InvalidArgumentException |
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* @throws SocketException |
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*/ |
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public function consume() |
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{ |
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$binaryDataReader = new BinaryDataReader($this->binLogSocketConnect->getResponse()); |
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// "ok" value on first byte continue |
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$binaryDataReader->advance(1); |
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// decode all events data |
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$eventInfo = $this->createEventInfo($binaryDataReader); |
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$eventDTO = null; |
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// always parse table map event but propagate when needed (we need this for creating table cache) |
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if (ConstEventType::TABLE_MAP_EVENT === $eventInfo->getType()) { |
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$eventDTO = $this->rowEventFactory->makeRowEvent($binaryDataReader, $eventInfo)->makeTableMapDTO(); |
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} |
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if (!Config::checkEvent($eventInfo->getType())) { |
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return; |
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} |
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if (in_array( |
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$eventInfo->getType(), [ConstEventType::UPDATE_ROWS_EVENT_V1, ConstEventType::UPDATE_ROWS_EVENT_V2], true |
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)) { |
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$eventDTO = $this->rowEventFactory->makeRowEvent($binaryDataReader, $eventInfo)->makeUpdateRowsDTO(); |
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} else if (in_array( |
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$eventInfo->getType(), [ConstEventType::WRITE_ROWS_EVENT_V1, ConstEventType::WRITE_ROWS_EVENT_V2], true |
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)) { |
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$eventDTO = $this->rowEventFactory->makeRowEvent($binaryDataReader, $eventInfo)->makeWriteRowsDTO(); |
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} else if (in_array( |
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$eventInfo->getType(), [ConstEventType::DELETE_ROWS_EVENT_V1, ConstEventType::DELETE_ROWS_EVENT_V2], true |
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)) { |
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$eventDTO = $this->rowEventFactory->makeRowEvent($binaryDataReader, $eventInfo)->makeDeleteRowsDTO(); |
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} else if (ConstEventType::XID_EVENT === $eventInfo->getType()) { |
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$eventDTO = (new XidEvent($eventInfo, $binaryDataReader))->makeXidDTO(); |
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} else if (ConstEventType::ROTATE_EVENT === $eventInfo->getType()) { |
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$this->cache->clear(); |
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$eventDTO = (new RotateEvent($eventInfo, $binaryDataReader))->makeRotateEventDTO(); |
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} else if (ConstEventType::GTID_LOG_EVENT === $eventInfo->getType()) { |
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$eventDTO = (new GtidEvent($eventInfo, $binaryDataReader))->makeGTIDLogDTO(); |
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} else if (ConstEventType::QUERY_EVENT === $eventInfo->getType()) { |
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$eventDTO = (new QueryEvent($eventInfo, $binaryDataReader))->makeQueryDTO(); |
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} else if (ConstEventType::MARIA_GTID_EVENT === $eventInfo->getType()) { |
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$eventDTO = (new MariaDbGtidEvent($eventInfo, $binaryDataReader))->makeMariaDbGTIDLogDTO(); |
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} else if (ConstEventType::FORMAT_DESCRIPTION_EVENT === $eventInfo->getType()) { |
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$eventDTO = new FormatDescriptionEventDTO($eventInfo); |
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} else if (ConstEventType::HEARTBEAT_LOG_EVENT === $eventInfo->getType()) { |
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$eventDTO = new HeartbeatDTO($eventInfo); |
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} |
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$this->dispatch($eventDTO); |
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} |
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/** |
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* @param BinaryDataReader $binaryDataReader |
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* @return EventInfo |
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*/ |
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private function createEventInfo(BinaryDataReader $binaryDataReader) |
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{ |
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return new EventInfo( |
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$binaryDataReader->readInt32(), |
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$binaryDataReader->readUInt8(), |
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$binaryDataReader->readInt32(), |
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$binaryDataReader->readInt32(), |
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$binaryDataReader->readInt32(), |
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$binaryDataReader->readUInt16(), |
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$this->binLogSocketConnect->getCheckSum(), |
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$this->binLogSocketConnect->getBinLogCurrent() |
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); |
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} |
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/** |
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* @param EventDTO $eventDTO |
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*/ |
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private function dispatch(EventDTO $eventDTO = null) |
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{ |
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if (null !== $eventDTO) { |
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$this->eventDispatcher->dispatch($eventDTO->getType(), $eventDTO); |
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} |
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} |
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} |
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krowinski /
php-mysql-replication
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