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<?php |
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/* |
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* This file is part of the PHPProm package. |
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* |
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* (c) Philip Lehmann-Böhm <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace PHPProm\Storage; |
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use \Doctrine\DBAL\Connection; |
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class DBAL implements StorageInterface { |
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protected $connection; |
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protected $table; |
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protected $statementKeyExists; |
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protected $statementKeyInsert; |
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protected $statementKeyUpdate; |
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protected function buildStatements() { |
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$queryBuilder = $this->connection->createQueryBuilder() |
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->select('COUNT(`key`) AS amount') |
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->from('`'.$this->table.'`') |
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->where('`key` = ?') |
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; |
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$this->statementKeyExists = $this->connection->prepare($queryBuilder->getSQL()); |
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$queryBuilder = $this->connection->createQueryBuilder() |
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->insert('`'.$this->table.'`') |
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->setValue('`value`', '?') |
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->setValue('`key`', '?') |
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; |
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$this->statementKeyInsert = $this->connection->prepare($queryBuilder->getSQL()); |
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$queryBuilder = $this->connection->createQueryBuilder() |
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->update('`'.$this->table.'`') |
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->set('`value`', '?') |
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->where('`key` = ?') |
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; |
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$this->statementKeyUpdate = $this->connection->prepare($queryBuilder->getSQL()); |
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} |
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public function __construct(Connection $connection, $table = 'phpprom') { |
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$this->connection = $connection; |
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$this->table = $table; |
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$this->buildStatements(); |
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} |
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public function storeMeasurement($prefix, $key, $value) { |
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$prefixedKey = $prefix.':'.$key; |
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$this->statementKeyExists->bindValue(1, $prefixedKey); |
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$this->statementKeyExists->execute(); |
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$exists = $this->statementKeyExists->fetch(\PDO::FETCH_ASSOC); |
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$statementStore = $exists['amount'] > 0 ? $this->statementKeyUpdate : $this->statementKeyInsert; |
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$statementStore->bindValue(1, $value); |
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$statementStore->bindValue(2, $prefixedKey); |
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$statementStore->execute(); |
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} |
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public function getMeasurements($prefix, array $keys) { |
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$prefixedKeys = array_map(function($key) use ($prefix) { |
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return $prefix.':'.$key; |
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}, $keys); |
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$queryBuilder = $this->connection->createQueryBuilder(); |
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$queryBuilder |
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->select('`key`', '`value`') |
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->from('`'.$this->table.'`') |
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->where('`key` IN (?)') |
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->setParameter(1, $prefixedKeys, Connection::PARAM_STR_ARRAY) |
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; |
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$measurements = []; |
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foreach ($keys as $key) { |
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$measurements[$key] = 'Nan'; |
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} |
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$rows = $queryBuilder->execute()->fetchAll(\PDO::FETCH_ASSOC); |
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foreach ($rows as $row) { |
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$unprefixedKey = substr($row['key'], strlen($prefix) + 1); |
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$measurements[$unprefixedKey] = (float)$row['value']; |
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} |
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return $measurements; |
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} |
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} |
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philiplb /
PHPProm
