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<?php |
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declare(strict_types=1); |
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namespace Neo4j\Neo4jBundle\Collector; |
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use GraphAware\Bolt\Result\Result; |
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use GraphAware\Common\Cypher\StatementInterface; |
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use GraphAware\Common\Result\StatementResult as StatementResultInterface; |
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use GraphAware\Common\Result\StatementStatisticsInterface; |
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use GraphAware\Neo4j\Client\Exception\Neo4jExceptionInterface; |
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/** |
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* @author Xavier Coureau <[email protected]> |
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*/ |
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class QueryLogger implements \Countable |
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{ |
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/** |
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* @var int |
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*/ |
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private $nbQueries = 0; |
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/** |
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* @var array |
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*/ |
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private $statements = []; |
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/** |
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* @var array |
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*/ |
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private $statementsHash = []; |
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/** |
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* @param StatementInterface $statement |
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*/ |
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public function record(StatementInterface $statement) |
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{ |
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$statementText = $statement->text(); |
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$statementParams = json_encode($statement->parameters()); |
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$tag = $statement->getTag() ?: -1; |
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// Make sure we do not record the same statement twice |
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if (isset($this->statementsHash[$statementText][$statementParams][$tag])) { |
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return; |
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} |
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$idx = $this->nbQueries++; |
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$this->statements[$idx] = [ |
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'start_time' => microtime(true) * 1000, |
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'end_time' => microtime(true) * 1000, // same |
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'nb_results' => 0, |
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'query' => $statementText, |
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'parameters' => $statementParams, |
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'tag' => $statement->getTag(), |
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'statistics' => [], |
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]; |
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$this->statementsHash[$statementText][$statementParams][$tag] = $idx; |
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} |
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/** |
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* @param StatementResultInterface $statementResult |
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*/ |
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public function finish(StatementResultInterface $statementResult) |
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{ |
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$scheme = 'Http'; |
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if ($statementResult instanceof Result) { |
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$scheme = 'Bolt'; |
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} |
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$statement = $statementResult->statement(); |
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$statementText = $statement->text(); |
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$statementParams = $statement->parameters(); |
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$encodedParameters = json_encode($statementParams); |
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$tag = $statement->getTag() ?: -1; |
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if (!isset($this->statementsHash[$statementText][$encodedParameters][$tag])) { |
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$idx = $this->nbQueries++; |
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$this->statements[$idx]['start_time'] = null; |
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$this->statementsHash[$idx] = $idx; |
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} else { |
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$idx = $this->statementsHash[$statementText][$encodedParameters][$tag]; |
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} |
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$this->statements[$idx] = array_merge($this->statements[$idx], [ |
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'end_time' => microtime(true) * 1000, |
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'nb_results' => $statementResult->size(), |
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'statistics' => $this->statisticsToArray($statementResult->summarize()->updateStatistics()), |
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'scheme' => $scheme, |
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'success' => true, |
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]); |
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} |
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/** |
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* @param Neo4jExceptionInterface $exception |
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*/ |
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public function logException(Neo4jExceptionInterface $exception) |
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{ |
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$idx = $this->nbQueries - 1; |
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$this->statements[$idx] = array_merge($this->statements[$idx], [ |
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'end_time' => microtime(true) * 1000, |
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'exceptionCode' => method_exists($exception, 'classification') ? $exception->classification() : '', |
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'exceptionMessage' => method_exists($exception, 'getMessage') ? $exception->getMessage() : '', |
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'success' => false, |
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]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count() |
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{ |
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return $this->nbQueries; |
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} |
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/** |
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* @return array[] |
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*/ |
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public function getStatements() |
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{ |
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return $this->statements; |
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} |
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/** |
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* @return array |
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*/ |
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public function getStatementsHash() |
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{ |
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return $this->statementsHash; |
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} |
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/** |
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* @return int |
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*/ |
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public function getElapsedTime() |
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{ |
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$time = 0; |
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foreach ($this->statements as $statement) { |
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if (!isset($statement['start_time'], $statement['end_time'])) { |
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continue; |
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} |
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$time += $statement['end_time'] - $statement['start_time']; |
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} |
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return $time; |
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} |
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private function statisticsToArray(StatementStatisticsInterface $statementStatistics) |
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{ |
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$data = [ |
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'contains_updates' => $statementStatistics->containsUpdates(), |
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'nodes_created' => $statementStatistics->nodesCreated(), |
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'nodes_deleted' => $statementStatistics->nodesDeleted(), |
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'relationships_created' => $statementStatistics->relationshipsCreated(), |
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'relationships_deleted' => $statementStatistics->relationshipsDeleted(), |
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'properties_set' => $statementStatistics->propertiesSet(), |
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'labels_added' => $statementStatistics->labelsAdded(), |
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'labels_removed' => $statementStatistics->labelsRemoved(), |
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'indexes_added' => $statementStatistics->indexesAdded(), |
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'indexes_removed' => $statementStatistics->indexesRemoved(), |
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'constraints_added' => $statementStatistics->constraintsAdded(), |
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'constraints_removed' => $statementStatistics->constraintsRemoved(), |
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]; |
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return $data; |
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} |
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} |
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neo4j-contrib /
neo4j-symfony
