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<?php |
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namespace Ez\DbLinker\Driver\Connection; |
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use Doctrine\DBAL\Driver\Connection; |
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use Doctrine\DBAL\DriverManager; |
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use Ez\DbLinker\RetryStrategy; |
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class RetryConnection implements Connection, ConnectionWrapper |
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{ |
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use ConnectionWrapperTrait; |
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private $wrappedConnectionParams; |
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private $retryStrategy; |
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private $transactionLevel = 0; |
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use CallAndRetry; |
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public function __construct(Array $wrappedConnectionParams, RetryStrategy $retryStrategy) |
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{ |
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$this->wrappedConnectionParams = $wrappedConnectionParams; |
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$this->retryStrategy = $retryStrategy; |
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} |
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/** |
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* Prepares a statement for execution and returns a Statement object. |
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* |
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* @param string $prepareString |
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* |
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* @return \Doctrine\DBAL\Driver\Statement |
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*/ |
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public function prepare($prepareString) { |
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return new RetryStatement( |
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$this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()), |
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$this, |
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$this->retryStrategy |
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); |
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} |
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/** |
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* Executes an SQL statement, returning a result set as a Statement object. |
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* |
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* @return \Doctrine\DBAL\Driver\Statement |
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*/ |
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public function query() { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Quotes a string for use in a query. |
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* |
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* @param string $input |
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* @param integer $type |
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* |
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* @return string |
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*/ |
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public function quote($input, $type = \PDO::PARAM_STR) { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Executes an SQL statement and return the number of affected rows. |
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* |
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* @param string $statement |
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* |
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* @return integer |
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*/ |
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public function exec($statement) { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Returns the ID of the last inserted row or sequence value. |
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* |
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* @param string|null $name |
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* |
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* @return string |
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*/ |
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public function lastInsertId($name = null) { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Initiates a transaction. |
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* |
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* @return boolean TRUE on success or FALSE on failure. |
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*/ |
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public function beginTransaction() { |
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$this->transactionLevel++; |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Commits a transaction. |
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* |
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* @return boolean TRUE on success or FALSE on failure. |
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*/ |
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public function commit() { |
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$this->transactionLevel--; |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Rolls back the current transaction, as initiated by beginTransaction(). |
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* |
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* @return boolean TRUE on success or FALSE on failure. |
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*/ |
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public function rollBack() { |
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$this->transactionLevel--; |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Returns the error code associated with the last operation on the database handle. |
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* |
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* @return string|null The error code, or null if no operation has been run on the database handle. |
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*/ |
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public function errorCode() { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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/** |
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* Returns extended error information associated with the last operation on the database handle. |
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* |
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* @return array |
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*/ |
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public function errorInfo() { |
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return $this->callWrappedConnectionAndRetry(__FUNCTION__, func_get_args()); |
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} |
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public function close() |
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{ |
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$this->wrappedConnection = null; |
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} |
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public function transactionLevel() |
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{ |
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return $this->transactionLevel; |
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} |
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private function callWrappedConnectionAndRetry($method, array $arguments) |
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{ |
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return $this->callAndRetry(function () use ($method, $arguments) { |
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return call_user_func_array([$this->wrappedConnection(), $method], $arguments); |
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}, $this->retryStrategy, $this); |
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} |
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protected function wrap() |
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{ |
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$connection = $this->wrappedConnection = DriverManager::getConnection( |
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$this->wrappedConnectionParams |
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); |
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$this->wrappedConnection = $connection->getWrappedConnection(); |
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$this->wrappedDriver = $connection->getDriver(); |
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} |
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} |
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ezweb /
dblinker
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