Returns the command factory used by the client.
| public getCommandFactory ( ) : Predis\Command\FactoryInterface | ||
| return | Predis\Command\FactoryInterface | |
/**
* {@inheritdoc}
*/
public function __construct(ClientInterface $client)
{
if (!$client->getCommandFactory()->supportsCommands(array('multi', 'exec', 'discard'))) {
throw new ClientException("'MULTI', 'EXEC' and 'DISCARD' are not supported by the current command factory.");
}
parent::__construct($client);
}
/**
* Checks if the passed client instance satisfies the required conditions
* needed to initialize the transaction object.
*
* @param ClientInterface $client Client instance used by the transaction object.
*
* @throws NotSupportedException
*/
private function assertClient(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregateConnectionInterface) {
throw new NotSupportedException('Cannot initialize a MULTI/EXEC transaction over aggregate connections.');
}
if (!$client->getCommandFactory()->supportsCommands(array('MULTI', 'EXEC', 'DISCARD'))) {
throw new NotSupportedException('MULTI, EXEC and DISCARD are not supported by the current command factory.');
}
}
/**
* Checks if the passed client instance satisfies the required conditions
* needed to initialize a monitor consumer.
*
* @param ClientInterface $client Client instance used by the consumer.
*
* @throws NotSupportedException
*/
private function assertClient(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregateConnectionInterface) {
throw new NotSupportedException('Cannot initialize a monitor consumer over aggregate connections.');
}
if ($client->getCommandFactory()->supportsCommand('MONITOR') === false) {
throw new NotSupportedException("'MONITOR' is not supported by the current command factory.");
}
}
/**
* Checks if the client instance satisfies the required conditions needed to
* initialize a PUB/SUB consumer.
*
* @param ClientInterface $client Client instance used by the consumer.
*
* @throws NotSupportedException
*/
private function checkCapabilities(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregateConnectionInterface) {
throw new NotSupportedException('Cannot initialize a PUB/SUB consumer over aggregate connections.');
}
$commands = array('publish', 'subscribe', 'unsubscribe', 'psubscribe', 'punsubscribe');
if ($client->getCommandFactory()->supportsCommands($commands) === false) {
throw new NotSupportedException('PUB/SUB commands are not supported by the current command factory.');
}
}
/**
* Ensures that the client supports the specified Redis command required to
* fetch elements from the server to perform the iteration.
*
* @param ClientInterface $client Client connected to Redis.
* @param string $commandID Command ID.
*
* @throws NotSupportedException
*/
protected function requiredCommand(ClientInterface $client, $commandID)
{
if (!$client->getCommandFactory()->supportsCommand($commandID)) {
throw new NotSupportedException("'{$commandID}' is not supported by the current command factory.");
}
}
