/**
* {@inheritdoc}
*/
public function __construct(ClientInterface $client)
{
if (!$client->getProfile()->supportsCommands(array('multi', 'exec', 'discard'))) {
throw new ClientException("The current profile does not support 'MULTI', 'EXEC' and 'DISCARD'.");
}
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->getProfile()->supportsCommands(array('MULTI', 'EXEC', 'DISCARD'))) {
throw new NotSupportedException('The current profile does not support MULTI, EXEC and DISCARD.');
}
}
/**
* Checks if the passed client instance satisfies the required conditions
* needed to initialize a monitor context.
*
* @param ClientInterface $client Client instance used by the context.
*/
private function checkCapabilities(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregatedConnectionInterface) {
throw new NotSupportedException('Cannot initialize a monitor context when using aggregated connections');
}
if ($client->getProfile()->supportsCommand('monitor') === false) {
throw new NotSupportedException('The current profile does not support the MONITOR command');
}
}
/**
* 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->getProfile()->supportsCommand('MONITOR') === false) {
throw new NotSupportedException("The current profile does not support 'MONITOR'.");
}
}
/**
* Checks if the passed client instance satisfies the required conditions
* needed to initialize a Publish / Subscribe context.
*
* @param ClientInterface $client Client instance used by the context.
*/
private function checkCapabilities(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregatedConnectionInterface) {
throw new NotSupportedException('Cannot initialize a PUB/SUB context when using aggregated connections');
}
$commands = array('publish', 'subscribe', 'unsubscribe', 'psubscribe', 'punsubscribe');
if ($client->getProfile()->supportsCommands($commands) === false) {
throw new NotSupportedException('The current profile does not support PUB/SUB related commands');
}
}
/**
* 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->getProfile()->supportsCommand($commandID)) {
throw new NotSupportedException("The current profile does not support '{$commandID}'.");
}
}
/**
* Checks if the passed client instance satisfies the required conditions
* needed to initialize a transaction context.
*
* @param ClientInterface $client Client instance used by the context.
*/
private function checkCapabilities(ClientInterface $client)
{
if ($client->getConnection() instanceof AggregatedConnectionInterface) {
throw new NotSupportedException('Cannot initialize a MULTI/EXEC context when using aggregated connections');
}
$profile = $client->getProfile();
if ($profile->supportsCommands(array('multi', 'exec', 'discard')) === false) {
throw new NotSupportedException('The current profile does not support MULTI, EXEC and DISCARD');
}
$this->canWatch = $profile->supportsCommands(array('watch', 'unwatch'));
}
/**
* Ensures that the client instance 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.
*/
protected function requiredCommand(ClientInterface $client, $commandID)
{
if (!$client->getProfile()->supportsCommand($commandID)) {
throw new NotSupportedException("The specified server profile does not support the `{$commandID}` command.");
}
}
