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https://github.com/predis/predis.git
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Daniele Alessandri
41c29bed4e
The "throw_errors" connection parameter has been removed and replaced by the new "exceptions" client option since exceptions on -ERR replies returned by Redis are not generated by connection classes anymore but are thrown by the client class and other abstractions such as pipeline contexts. This change does not affect much people using the Predis\Client class (aside from the different configuration) but gives much more flexibility to those building their own pieces of code around the internal classes of Predis.
94 lines
2.7 KiB
PHP
94 lines
2.7 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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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 Predis\Pipeline;
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use Predis\ResponseErrorInterface;
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use Predis\Connection\ConnectionInterface;
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use Predis\Connection\ReplicationConnectionInterface;
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use Predis\ServerException;
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/**
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* Implements the standard pipeline executor strategy used
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* to write a list of commands and read their replies over
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* a connection to Redis.
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*
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class StandardExecutor implements PipelineExecutorInterface
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{
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/**
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* @param bool $useServerExceptions Specifies if the executor should throw exceptions on server errors.
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*/
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public function __construct($useServerExceptions = true)
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{
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$this->useServerExceptions = (bool) $useServerExceptions;
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}
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/**
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* Allows the pipeline executor to perform operations on the
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* connection before starting to execute the commands stored
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* in the pipeline.
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*
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* @param ConnectionInterface Connection instance.
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*/
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protected function checkConnection(ConnectionInterface $connection)
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{
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if ($connection instanceof ReplicationConnectionInterface) {
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$connection->switchTo('master');
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}
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}
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/**
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* Handles -ERR responses returned by Redis.
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*
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* @param ConnectionInterface $connection The connection that returned the error.
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* @param ResponseErrorInterface $response The error response instance.
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*/
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protected function onResponseError(ConnectionInterface $connection, ResponseErrorInterface $response)
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{
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// Force disconnection to prevent protocol desynchronization.
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$connection->disconnect();
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$message = $response->getMessage();
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throw new ServerException($message);
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}
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/**
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* {@inheritdoc}
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*/
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public function execute(ConnectionInterface $connection, Array &$commands)
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{
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$values = array();
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$sizeofPipe = count($commands);
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$useServerExceptions = $this->useServerExceptions;
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$this->checkConnection($connection);
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foreach ($commands as $command) {
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$connection->writeCommand($command);
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}
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for ($i = 0; $i < $sizeofPipe; $i++) {
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$response = $connection->readResponse($commands[$i]);
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if ($response instanceof ResponseErrorInterface && $useServerExceptions === true) {
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$this->onResponseError($connection, $response);
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}
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$values[] = $response instanceof \Iterator ? iterator_to_array($response) : $response;
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unset($commands[$i]);
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}
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return $values;
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}
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}
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