/**
* Sets up autoloading and creates the service provider (DIC)
*
* Setup global class map and loader instances and add the core classes to the map.
* We can't load this from dataroot because we don't know it yet, and we'll need
* several classes before we can find out!
*
* @throws RuntimeException
* @access private
*/
function _elgg_create_service_provider()
{
// manually load classes needed for autoloading
$dir = dirname(dirname(__FILE__)) . '/classes';
foreach (array('Elgg_ClassMap', 'Elgg_ClassLoader', 'Elgg_AutoloadManager') as $class) {
if (!class_exists($class)) {
$file = "{$dir}/" . strtr($class, '_\\', '//') . ".php";
include $file;
if (!class_exists($class, false)) {
throw new RuntimeException("Could not load {$class} in {$file}.");
}
}
}
$loader = new Elgg_ClassLoader(new Elgg_ClassMap());
// until the cache can be loaded, just setup PSR-0 autoloading
// out of the classes directory. No need to build a full map.
$loader->addFallback($dir);
$loader->register();
$manager = new Elgg_AutoloadManager($loader);
return new Elgg_Di_ServiceProvider($manager);
}
/**
* Set the state of the manager from the cache
*
* @return bool was the cache loaded?
*/
public function loadCache()
{
$spec = $this->getSpec();
if ($spec) {
// the cached class map will have the full scanned core classes, so
// don't consider the earlier mappings as "altering" the map
$this->loader->getClassMap()->setMap($spec[self::KEY_CLASSES])->setAltered(false);
$this->scannedDirs = $spec[self::KEY_SCANNED_DIRS];
return true;
}
$this->altered = true;
return false;
}
