/**
* Returns the wrapped Redis client instance.
*
* This method is called from AbstractRedisWrapper, who uses it to call the desired method directly
* on the wrapped redis, rather than using call_user_func().
* The command and key are passed into the method to allow for some logic within the implementations
* of this method.
*
* @param string $command the current command
* @param string|null $key the current key if available, null otherwise. Commands that operate on
* multiple keys will pass their keys as a comma separated string.
* @throws Exception when an error happens during connecting
* @return Redis
*/
protected function getWrappedRedis($command, $key = null)
{
// if we don't have a client yet, we never connected, so let's do it now
if (!$this->client) {
// gotta make sure the app actually tried to connect first
if (!$this->connectWasCalled) {
throw new Exception('call connect() or pconnect() first');
}
if (!($this->persistent ? $this->conn->pconnect($this->host, $this->port, $this->timeout) : $this->conn->connect($this->host, $this->port, $this->timeout))) {
throw new Exception('could not connect to ' . $this->conn->getUniqueId() . ' params: ' . (!empty($this->host) ? $this->host . ':' . $this->port : 'none'));
}
$this->client = $this->conn->getClient();
}
return $this->client;
}
/**
* This method uses the stored connection parameters to connect an instance.
*
* @param Connection $conn
* @return bool
*/
protected function connectInstance(Connection $conn)
{
// connect() and pconnect() can throw exceptions, which we just want to treat as connection failures
// TODO: really? can they?
try {
$res = $this->origPersistent ? $conn->pconnect($this->origHost, $this->origPort, $this->origTimeout) : $conn->connect($this->origHost, $this->origPort, $this->origTimeout);
} catch (ConnectionError $e) {
return false;
}
if ($this->origDbindex) {
$res = $res && $conn->select($this->origDbindex);
}
return $res;
}
/**
* Test connecting to invalid host persistently
*/
public function testPconnectInvalidHost()
{
$this->redis->disconnect();
$this->assertFalse($this->redis->pconnect('ThisHostCanNotPossiblyExist'));
$this->assertFalse($this->redis->isconnected());
}
