/**
* Returns cached $callback result
*
* @param callable $callback
* @param array $args Callback arguments
* @param int $expireIn Seconds
* @param string|null $cacheKeySuffix Is needed to avoid collisions when callback is an anonymous function
* @return mixed
* @throws \InvalidArgumentException
*/
public function getCached($callback, array $args = array(), $expireIn = 0, $cacheKeySuffix = null)
{
if (!is_callable($callback)) {
throw new \InvalidArgumentException('First argument of getCached method has to be a valid callback');
}
$key = $this->getCallbackCacheKey($callback, $args, $cacheKeySuffix);
try {
$result = $this->cache->get($key)->value;
} catch (\CouchbaseException $e) {
$result = call_user_func_array($callback, $args);
$this->cache->insert($key, $this->serializeCompound($result), array('expiry' => $expireIn));
}
return $this->unserializeCompound($result);
}
/**
* {@inheritdoc}
*/
public function add($key, $value, $expire = 0)
{
try {
$result = $this->client->insert($key, $value, array('expiry' => $expire));
} catch (\CouchbaseException $e) {
return false;
}
return !$result->error;
}
protected function setInternal($key, $value, $expire, $upsert = false)
{
if ($upsert) {
$this->storage->upsert($key, $value, ['expiry' => $expire]);
} else {
$this->storage->insert($key, $value, ['expiry' => $expire]);
}
return true;
}
protected function doAdd($key, $var, $expiry = 0)
{
KalturaLog::debug("key [{$key}], var [" . print_r($var, true) . "]");
try {
$meta = $this->bucket->insert($key, $var, array('expiry' => $expiry));
} catch (CouchbaseException $e) {
if ($e->getCode() == self::ERROR_CODE_THE_KEY_ALREADY_EXISTS_IN_THE_SERVER) {
return false;
}
throw $e;
}
return is_null($meta->error);
}
