/**
* method to retrieve the cache instance
*
* @return Billrun_Cache
*/
public static function cache()
{
try {
if (!self::$cache) {
$args = self::config()->getConfigValue('cache', array());
if (empty($args)) {
return false;
}
self::$cache = Billrun_Cache::getInstance($args);
}
return self::$cache;
} catch (Exception $e) {
Billrun_Factory::log('Cache instance cannot be generated', Zend_Log::ALERT);
}
return false;
}
/**
* method to get the instance of the class (singleton)
*/
public static function getInstance(array $args = array())
{
if (count($args) < 2) {
Billrun_Factory::log('Cache is not configured well. Not enough args to instantiate', Zend_Log::ERR);
return false;
}
// default value of automatic_serialization is true
if (!isset($args[2])) {
$args[2] = array();
$args[2]['automatic_serialization'] = true;
} elseif (!isset($args[2]['automatic_serialization'])) {
$args[2]['automatic_serialization'] = true;
}
$args[2]['logging'] = true;
$args[2]['logger'] = Billrun_Factory::log();
// if not set back-end, take it from front-end
if (!isset($args[3])) {
$args[3] = $args[2];
}
if (is_null(self::$instance)) {
$cache = forward_static_call_array(array('Zend_Cache', 'factory'), $args);
self::$instance = new self($cache);
}
return self::$instance;
}
/**
* method to retrieve the cache instance
*
* @return Billrun_Cache
*/
public static function cache()
{
if (!self::$cache) {
$args = self::config()->getConfigValue('cache', array());
if (empty($args)) {
return false;
}
self::$cache = Billrun_Cache::getInstance($args);
}
return self::$cache;
}
