/**
* @group disconnected
*/
public function testExtractKeyTag()
{
$this->assertEquals('foo:bar', Helpers::extractKeyTag('foo:bar'));
$this->assertEquals('foo:', Helpers::extractKeyTag('{foo:}bar'));
$this->assertEquals('bar', Helpers::extractKeyTag('foo:{bar}'));
$this->assertEquals('foo:bar', Helpers::extractKeyTag('{foo:bar}'));
$this->assertEquals('', Helpers::extractKeyTag('foo{}:bar'));
$this->assertEquals('', Helpers::extractKeyTag(''));
$this->assertEquals('', Helpers::extractKeyTag('{}'));
}
/**
* {@inheritdoc}
*/
public function getHash(INodeKeyGenerator $distributor)
{
if (isset($this->hash)) {
return $this->hash;
}
if ($this->canBeHashed()) {
$key = Helpers::extractKeyTag($this->arguments[0]);
$this->hash = $distributor->generateKey($key);
return $this->hash;
}
return null;
}
/**
* Retrieves a connection instance from the cluster using a key.
*
* @param string $key Key of a Redis value.
* @return IConnectionSingle
*/
public function getConnectionByKey($key)
{
$hashablePart = Helpers::extractKeyTag($key);
$keyHash = $this->distributor->generateKey($hashablePart);
return $this->distributor->get($keyHash);
}
