public function register(Feature $feature, $strategyName)
{
if (!$this->isStrategyRegistered($strategyName)) {
throw new \InvalidArgumentException(sprintf("Strategy '%s' is not registered.", $strategyName));
}
$this->features[] = $feature;
$this->featureStrategyMapping[$feature->getName()] = $strategyName;
}
public function save(Feature $feature, $userKey, $variant)
{
$table = $this->tableName;
$stmt = $this->pdo->prepare("INSERT INTO {$table} (id, user, feature, variant) VALUES (NULL, :user, :feature, :variant)");
$stmt->bindParam('user', $userKey);
$stmt->bindParam('feature', $feature->getName());
$stmt->bindParam('variant', $variant);
return $stmt->execute();
}
public function decide(Strategy $strategy, Feature $feature, array $context = array())
{
$voter = $strategy->getVoter();
$context = !empty($context) ? $context : $this->getContext();
$context['_user'] = $this->get('_user');
$options = array_merge($strategy->getOptions(), $feature->getOptions());
if (is_callable($voter)) {
return $this->callVoter($voter, $context, $options);
} else {
if (is_string($voter)) {
$contextObj = $this->arrayToObject($context);
$optionsObj = $this->arrayToObject($options);
return $this->expressionLanguage->evaluate($voter, ['context' => $contextObj, 'options' => $optionsObj, 'user' => $this->get('_user')]);
}
}
}
public function setUp()
{
$this->registry = new Registry();
$this->feature = Feature::create('top_secret', array('enabled', 'disabled'), array('whitelist' => array('127.0.0.1', '10.0.0.5')));
$this->strategy = Strategy::create('ip_whitelist', function ($context, $options) {
return in_array($context['client_ip'], $options['whitelist']);
});
// $this->strategy = Strategy::create('ip_whitelist', 'context.client_ip in options.whitelist');
$this->registry->registerStrategy($this->strategy);
$this->registry->register($this->feature, 'ip_whitelist');
}
private function loadFeatures($registry)
{
if (!isset($this->data['features'])) {
return;
}
foreach ($this->data['features'] as $name => $config) {
$strategyName = $config['strategy'];
if (!$strategyName) {
throw new \RuntimeException(sprintf("A strategy must be specified for feature '%s'.", $name));
}
$variants = isset($config['variants']) ? $config['variants'] : ['enabled', 'disabled'];
$feature = Feature::create($name, $variants);
if (isset($config['options'])) {
$feature->setOptions($config['options']);
}
$registry->register($feature, $strategyName);
}
}
public function feature($name, $strategyName, array $variants = array())
{
$feature = Feature::create($name, $variants);
$this->registry->register($feature, $strategyName);
return $feature;
}