Retwis ported to modern Redis data types.
The example (and related documentation at redis.io) was not updated for 5 years. Redis had no sorted sets and hashes when the original code was written (!). An update was really needed. We also use a modern PHP client now: Predis. A copy is shipped within this repository to make life easier to newcomers trying Redis for the first time via this example.
This commit is contained in:
commit
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277 changed files with 18503 additions and 0 deletions
55
Predis/Pipeline/FireAndForgetExecutor.php
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55
Predis/Pipeline/FireAndForgetExecutor.php
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|
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<?php
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||||
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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>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
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||||
*/
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||||
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||||
namespace Predis\Pipeline;
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use SplQueue;
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use Predis\Connection\ConnectionInterface;
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use Predis\Connection\ReplicationConnectionInterface;
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/**
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* Implements a pipeline executor strategy that writes a list of commands to
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* the connection object but does not read back their replies.
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*
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class FireAndForgetExecutor implements PipelineExecutorInterface
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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 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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* {@inheritdoc}
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*/
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public function execute(ConnectionInterface $connection, SplQueue $commands)
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{
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$this->checkConnection($connection);
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while (!$commands->isEmpty()) {
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$connection->writeCommand($commands->dequeue());
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}
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$connection->disconnect();
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return array();
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}
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}
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168
Predis/Pipeline/MultiExecExecutor.php
Normal file
168
Predis/Pipeline/MultiExecExecutor.php
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@ -0,0 +1,168 @@
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<?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 Iterator;
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use SplQueue;
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use Predis\ClientException;
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use Predis\ResponseErrorInterface;
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use Predis\ResponseObjectInterface;
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use Predis\ServerException;
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use Predis\Connection\ConnectionInterface;
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use Predis\Connection\SingleConnectionInterface;
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use Predis\Profile\ServerProfile;
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use Predis\Profile\ServerProfileInterface;
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/**
|
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* Implements a pipeline executor that wraps the whole pipeline
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* in a MULTI / EXEC context to make sure that it is executed
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* correctly.
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*
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class MultiExecExecutor implements PipelineExecutorInterface
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{
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protected $profile;
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||||
/**
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||||
*
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||||
*/
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||||
public function __construct(ServerProfileInterface $profile = null)
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{
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$this->setProfile($profile ?: ServerProfile::getDefault());
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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 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 SingleConnectionInterface) {
|
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$class = __CLASS__;
|
||||
throw new ClientException("$class can be used only with single connections");
|
||||
}
|
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}
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/**
|
||||
* {@inheritdoc}
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*/
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public function execute(ConnectionInterface $connection, SplQueue $commands)
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||||
{
|
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$this->checkConnection($connection);
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$cmd = $this->profile->createCommand('multi');
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$connection->executeCommand($cmd);
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|
||||
foreach ($commands as $command) {
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$connection->writeCommand($command);
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}
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|
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foreach ($commands as $command) {
|
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$response = $connection->readResponse($command);
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|
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if ($response instanceof ResponseErrorInterface) {
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$cmd = $this->profile->createCommand('discard');
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$connection->executeCommand($cmd);
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|
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throw new ServerException($response->getMessage());
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}
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}
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|
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$cmd = $this->profile->createCommand('exec');
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$responses = $connection->executeCommand($cmd);
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|
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if (!isset($responses)) {
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throw new ClientException('The underlying transaction has been aborted by the server');
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}
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if (count($responses) !== count($commands)) {
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throw new ClientException("Invalid number of replies [expected: ".count($commands)." - actual: ".count($responses)."]");
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}
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||||
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$consumer = $responses instanceof Iterator ? 'consumeIteratorResponse' : 'consumeArrayResponse';
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return $this->$consumer($commands, $responses);
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}
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|
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/**
|
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* Consumes an iterator response returned by EXEC.
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*
|
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* @param SplQueue $commands Pipelined commands
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* @param Iterator $responses Responses returned by EXEC.
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* @return array
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||||
*/
|
||||
protected function consumeIteratorResponse(SplQueue $commands, Iterator $responses)
|
||||
{
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||||
$values = array();
|
||||
|
||||
foreach ($responses as $response) {
|
||||
$command = $commands->dequeue();
|
||||
|
||||
if ($response instanceof ResponseObjectInterface) {
|
||||
if ($response instanceof Iterator) {
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$response = iterator_to_array($response);
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$values[] = $command->parseResponse($response);
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} else {
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$values[] = $response;
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||||
}
|
||||
} else {
|
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$values[] = $command->parseResponse($response);
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||||
}
|
||||
}
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||||
|
||||
return $values;
|
||||
}
|
||||
|
||||
/**
|
||||
* Consumes an array response returned by EXEC.
|
||||
*
|
||||
* @param SplQueue $commands Pipelined commands
|
||||
* @param Array $responses Responses returned by EXEC.
|
||||
* @return array
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||||
*/
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||||
protected function consumeArrayResponse(SplQueue $commands, Array &$responses)
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||||
{
|
||||
$size = count($commands);
|
||||
$values = array();
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||||
|
||||
for ($i = 0; $i < $size; $i++) {
|
||||
$command = $commands->dequeue();
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||||
$response = $responses[$i];
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||||
|
||||
if ($response instanceof ResponseObjectInterface) {
|
||||
$values[$i] = $response;
|
||||
} else {
|
||||
$values[$i] = $command->parseResponse($response);
|
||||
}
|
||||
|
||||
unset($responses[$i]);
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}
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|
||||
return $values;
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}
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||||
|
||||
/**
|
||||
* @param ServerProfileInterface $profile Server profile.
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||||
*/
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public function setProfile(ServerProfileInterface $profile)
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{
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if (!$profile->supportsCommands(array('multi', 'exec', 'discard'))) {
|
||||
throw new ClientException('The specified server profile must support MULTI, EXEC and DISCARD.');
|
||||
}
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||||
|
||||
$this->profile = $profile;
|
||||
}
|
||||
}
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||||
189
Predis/Pipeline/PipelineContext.php
Normal file
189
Predis/Pipeline/PipelineContext.php
Normal file
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@ -0,0 +1,189 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Predis package.
|
||||
*
|
||||
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Predis\Pipeline;
|
||||
|
||||
use SplQueue;
|
||||
use Predis\BasicClientInterface;
|
||||
use Predis\ClientException;
|
||||
use Predis\ClientInterface;
|
||||
use Predis\ExecutableContextInterface;
|
||||
use Predis\Command\CommandInterface;
|
||||
|
||||
/**
|
||||
* Abstraction of a pipeline context where write and read operations
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* of commands and their replies over the network are pipelined.
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||||
*
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||||
* @author Daniele Alessandri <suppakilla@gmail.com>
|
||||
*/
|
||||
class PipelineContext implements BasicClientInterface, ExecutableContextInterface
|
||||
{
|
||||
private $client;
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||||
private $executor;
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||||
private $pipeline;
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||||
|
||||
private $replies = array();
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||||
private $running = false;
|
||||
|
||||
/**
|
||||
* @param ClientInterface $client Client instance used by the context.
|
||||
* @param PipelineExecutorInterface $executor Pipeline executor instace.
|
||||
*/
|
||||
public function __construct(ClientInterface $client, PipelineExecutorInterface $executor = null)
|
||||
{
|
||||
$this->client = $client;
|
||||
$this->executor = $executor ?: $this->createExecutor($client);
|
||||
$this->pipeline = new SplQueue();
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns a pipeline executor depending on the kind of the underlying
|
||||
* connection and the passed options.
|
||||
*
|
||||
* @param ClientInterface $client Client instance used by the context.
|
||||
* @return PipelineExecutorInterface
|
||||
*/
|
||||
protected function createExecutor(ClientInterface $client)
|
||||
{
|
||||
$options = $client->getOptions();
|
||||
|
||||
if (isset($options->exceptions)) {
|
||||
return new StandardExecutor($options->exceptions);
|
||||
}
|
||||
|
||||
return new StandardExecutor();
|
||||
}
|
||||
|
||||
/**
|
||||
* Queues a command into the pipeline buffer.
|
||||
*
|
||||
* @param string $method Command ID.
|
||||
* @param array $arguments Arguments for the command.
|
||||
* @return $this
|
||||
*/
|
||||
public function __call($method, $arguments)
|
||||
{
|
||||
$command = $this->client->createCommand($method, $arguments);
|
||||
$this->recordCommand($command);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Queues a command instance into the pipeline buffer.
|
||||
*
|
||||
* @param CommandInterface $command Command to queue in the buffer.
|
||||
*/
|
||||
protected function recordCommand(CommandInterface $command)
|
||||
{
|
||||
$this->pipeline->enqueue($command);
|
||||
}
|
||||
|
||||
/**
|
||||
* Queues a command instance into the pipeline buffer.
|
||||
*
|
||||
* @param CommandInterface $command Command to queue in the buffer.
|
||||
* @return $this
|
||||
*/
|
||||
public function executeCommand(CommandInterface $command)
|
||||
{
|
||||
$this->recordCommand($command);
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Flushes the buffer that holds the queued commands.
|
||||
*
|
||||
* @param bool $send Specifies if the commands in the buffer should be sent to Redis.
|
||||
* @return PipelineContext
|
||||
*/
|
||||
public function flushPipeline($send = true)
|
||||
{
|
||||
if ($send && !$this->pipeline->isEmpty()) {
|
||||
$connection = $this->client->getConnection();
|
||||
$replies = $this->executor->execute($connection, $this->pipeline);
|
||||
$this->replies = array_merge($this->replies, $replies);
|
||||
} else {
|
||||
$this->pipeline = new SplQueue();
|
||||
}
|
||||
|
||||
return $this;
|
||||
}
|
||||
|
||||
/**
|
||||
* Marks the running status of the pipeline.
|
||||
*
|
||||
* @param bool $bool True if the pipeline is running.
|
||||
* False if the pipeline is not running.
|
||||
*/
|
||||
private function setRunning($bool)
|
||||
{
|
||||
if ($bool === true && $this->running === true) {
|
||||
throw new ClientException("This pipeline is already opened");
|
||||
}
|
||||
|
||||
$this->running = $bool;
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles the actual execution of the whole pipeline.
|
||||
*
|
||||
* @param mixed $callable Optional callback for execution.
|
||||
* @return array
|
||||
*/
|
||||
public function execute($callable = null)
|
||||
{
|
||||
if ($callable && !is_callable($callable)) {
|
||||
throw new \InvalidArgumentException('Argument passed must be a callable object');
|
||||
}
|
||||
|
||||
$this->setRunning(true);
|
||||
$pipelineBlockException = null;
|
||||
|
||||
try {
|
||||
if ($callable !== null) {
|
||||
call_user_func($callable, $this);
|
||||
}
|
||||
$this->flushPipeline();
|
||||
} catch (\Exception $exception) {
|
||||
$pipelineBlockException = $exception;
|
||||
}
|
||||
|
||||
$this->setRunning(false);
|
||||
|
||||
if ($pipelineBlockException !== null) {
|
||||
throw $pipelineBlockException;
|
||||
}
|
||||
|
||||
return $this->replies;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the underlying client instance used by the pipeline object.
|
||||
*
|
||||
* @return ClientInterface
|
||||
*/
|
||||
public function getClient()
|
||||
{
|
||||
return $this->client;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns the underlying pipeline executor used by the pipeline object.
|
||||
*
|
||||
* @return PipelineExecutorInterface
|
||||
*/
|
||||
public function getExecutor()
|
||||
{
|
||||
return $this->executor;
|
||||
}
|
||||
}
|
||||
33
Predis/Pipeline/PipelineExecutorInterface.php
Normal file
33
Predis/Pipeline/PipelineExecutorInterface.php
Normal file
|
|
@ -0,0 +1,33 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Predis package.
|
||||
*
|
||||
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Predis\Pipeline;
|
||||
|
||||
use SplQueue;
|
||||
use Predis\Connection\ConnectionInterface;
|
||||
|
||||
/**
|
||||
* Defines a strategy to write a list of commands to the network
|
||||
* and read back their replies.
|
||||
*
|
||||
* @author Daniele Alessandri <suppakilla@gmail.com>
|
||||
*/
|
||||
interface PipelineExecutorInterface
|
||||
{
|
||||
/**
|
||||
* Writes a list of commands to the network and reads back their replies.
|
||||
*
|
||||
* @param ConnectionInterface $connection Connection to Redis.
|
||||
* @param SplQueue $commands Commands queued for execution.
|
||||
* @return array
|
||||
*/
|
||||
public function execute(ConnectionInterface $connection, SplQueue $commands);
|
||||
}
|
||||
72
Predis/Pipeline/SafeClusterExecutor.php
Normal file
72
Predis/Pipeline/SafeClusterExecutor.php
Normal file
|
|
@ -0,0 +1,72 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Predis package.
|
||||
*
|
||||
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Predis\Pipeline;
|
||||
|
||||
use SplQueue;
|
||||
use Predis\CommunicationException;
|
||||
use Predis\Connection\ConnectionInterface;
|
||||
|
||||
/**
|
||||
* Implements a pipeline executor strategy for connection clusters that does
|
||||
* not fail when an error is encountered, but adds the returned error in the
|
||||
* replies array.
|
||||
*
|
||||
* @author Daniele Alessandri <suppakilla@gmail.com>
|
||||
*/
|
||||
class SafeClusterExecutor implements PipelineExecutorInterface
|
||||
{
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function execute(ConnectionInterface $connection, SplQueue $commands)
|
||||
{
|
||||
$size = count($commands);
|
||||
$values = array();
|
||||
$connectionExceptions = array();
|
||||
|
||||
foreach ($commands as $command) {
|
||||
$cmdConnection = $connection->getConnection($command);
|
||||
|
||||
if (isset($connectionExceptions[spl_object_hash($cmdConnection)])) {
|
||||
continue;
|
||||
}
|
||||
|
||||
try {
|
||||
$cmdConnection->writeCommand($command);
|
||||
} catch (CommunicationException $exception) {
|
||||
$connectionExceptions[spl_object_hash($cmdConnection)] = $exception;
|
||||
}
|
||||
}
|
||||
|
||||
for ($i = 0; $i < $size; $i++) {
|
||||
$command = $commands->dequeue();
|
||||
|
||||
$cmdConnection = $connection->getConnection($command);
|
||||
$connectionObjectHash = spl_object_hash($cmdConnection);
|
||||
|
||||
if (isset($connectionExceptions[$connectionObjectHash])) {
|
||||
$values[$i] = $connectionExceptions[$connectionObjectHash];
|
||||
continue;
|
||||
}
|
||||
|
||||
try {
|
||||
$response = $cmdConnection->readResponse($command);
|
||||
$values[$i] = $response instanceof \Iterator ? iterator_to_array($response) : $response;
|
||||
} catch (CommunicationException $exception) {
|
||||
$values[$i] = $exception;
|
||||
$connectionExceptions[$connectionObjectHash] = $exception;
|
||||
}
|
||||
}
|
||||
|
||||
return $values;
|
||||
}
|
||||
}
|
||||
57
Predis/Pipeline/SafeExecutor.php
Normal file
57
Predis/Pipeline/SafeExecutor.php
Normal file
|
|
@ -0,0 +1,57 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Predis package.
|
||||
*
|
||||
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Predis\Pipeline;
|
||||
|
||||
use SplQueue;
|
||||
use Predis\CommunicationException;
|
||||
use Predis\Connection\ConnectionInterface;
|
||||
|
||||
/**
|
||||
* Implements a pipeline executor strategy that does not fail when an error is
|
||||
* encountered, but adds the returned error in the replies array.
|
||||
*
|
||||
* @author Daniele Alessandri <suppakilla@gmail.com>
|
||||
*/
|
||||
class SafeExecutor implements PipelineExecutorInterface
|
||||
{
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function execute(ConnectionInterface $connection, SplQueue $commands)
|
||||
{
|
||||
$size = count($commands);
|
||||
$values = array();
|
||||
|
||||
foreach ($commands as $command) {
|
||||
try {
|
||||
$connection->writeCommand($command);
|
||||
} catch (CommunicationException $exception) {
|
||||
return array_fill(0, $size, $exception);
|
||||
}
|
||||
}
|
||||
|
||||
for ($i = 0; $i < $size; $i++) {
|
||||
$command = $commands->dequeue();
|
||||
|
||||
try {
|
||||
$response = $connection->readResponse($command);
|
||||
$values[$i] = $response instanceof \Iterator ? iterator_to_array($response) : $response;
|
||||
} catch (CommunicationException $exception) {
|
||||
$toAdd = count($commands) - count($values);
|
||||
$values = array_merge($values, array_fill(0, $toAdd, $exception));
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
return $values;
|
||||
}
|
||||
}
|
||||
123
Predis/Pipeline/StandardExecutor.php
Normal file
123
Predis/Pipeline/StandardExecutor.php
Normal file
|
|
@ -0,0 +1,123 @@
|
|||
<?php
|
||||
|
||||
/*
|
||||
* This file is part of the Predis package.
|
||||
*
|
||||
* (c) Daniele Alessandri <suppakilla@gmail.com>
|
||||
*
|
||||
* For the full copyright and license information, please view the LICENSE
|
||||
* file that was distributed with this source code.
|
||||
*/
|
||||
|
||||
namespace Predis\Pipeline;
|
||||
|
||||
use Iterator;
|
||||
use SplQueue;
|
||||
use Predis\ResponseErrorInterface;
|
||||
use Predis\ResponseObjectInterface;
|
||||
use Predis\ServerException;
|
||||
use Predis\Command\CommandInterface;
|
||||
use Predis\Connection\ConnectionInterface;
|
||||
use Predis\Connection\ReplicationConnectionInterface;
|
||||
|
||||
/**
|
||||
* Implements the standard pipeline executor strategy used
|
||||
* to write a list of commands and read their replies over
|
||||
* a connection to Redis.
|
||||
*
|
||||
* @author Daniele Alessandri <suppakilla@gmail.com>
|
||||
*/
|
||||
class StandardExecutor implements PipelineExecutorInterface
|
||||
{
|
||||
protected $exceptions;
|
||||
|
||||
/**
|
||||
* @param bool $exceptions Specifies if the executor should throw exceptions on server errors.
|
||||
*/
|
||||
public function __construct($exceptions = true)
|
||||
{
|
||||
$this->exceptions = (bool) $exceptions;
|
||||
}
|
||||
|
||||
/**
|
||||
* Allows the pipeline executor to perform operations on the
|
||||
* connection before starting to execute the commands stored
|
||||
* in the pipeline.
|
||||
*
|
||||
* @param ConnectionInterface $connection Connection instance.
|
||||
*/
|
||||
protected function checkConnection(ConnectionInterface $connection)
|
||||
{
|
||||
if ($connection instanceof ReplicationConnectionInterface) {
|
||||
$connection->switchTo('master');
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles a response object.
|
||||
*
|
||||
* @param ConnectionInterface $connection
|
||||
* @param CommandInterface $command
|
||||
* @param ResponseObjectInterface $response
|
||||
* @return mixed
|
||||
*/
|
||||
protected function onResponseObject(ConnectionInterface $connection, CommandInterface $command, ResponseObjectInterface $response)
|
||||
{
|
||||
if ($response instanceof ResponseErrorInterface) {
|
||||
return $this->onResponseError($connection, $response);
|
||||
}
|
||||
|
||||
if ($response instanceof Iterator) {
|
||||
return $command->parseResponse(iterator_to_array($response));
|
||||
}
|
||||
|
||||
return $response;
|
||||
}
|
||||
|
||||
/**
|
||||
* Handles -ERR responses returned by Redis.
|
||||
*
|
||||
* @param ConnectionInterface $connection The connection that returned the error.
|
||||
* @param ResponseErrorInterface $response The error response instance.
|
||||
* @return ResponseErrorInterface
|
||||
*/
|
||||
protected function onResponseError(ConnectionInterface $connection, ResponseErrorInterface $response)
|
||||
{
|
||||
if (!$this->exceptions) {
|
||||
return $response;
|
||||
}
|
||||
|
||||
// Force disconnection to prevent protocol desynchronization.
|
||||
$connection->disconnect();
|
||||
$message = $response->getMessage();
|
||||
|
||||
throw new ServerException($message);
|
||||
}
|
||||
|
||||
/**
|
||||
* {@inheritdoc}
|
||||
*/
|
||||
public function execute(ConnectionInterface $connection, SplQueue $commands)
|
||||
{
|
||||
$this->checkConnection($connection);
|
||||
|
||||
foreach ($commands as $command) {
|
||||
$connection->writeCommand($command);
|
||||
}
|
||||
|
||||
$values = array();
|
||||
|
||||
while (!$commands->isEmpty()) {
|
||||
$command = $commands->dequeue();
|
||||
$response = $connection->readResponse($command);
|
||||
|
||||
if ($response instanceof ResponseObjectInterface) {
|
||||
$values[] = $this->onResponseObject($connection, $command, $response);
|
||||
} else {
|
||||
$values[] = $command->parseResponse($response);
|
||||
}
|
||||
}
|
||||
|
||||
return $values;
|
||||
}
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue