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ModuleLoaderListener.php
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ModuleLoaderListener.php
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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\ModuleManager\Listener;
use Zend\Loader\ModuleAutoloader;
use Zend\ModuleManager\ModuleEvent;
use Zend\EventManager\EventManagerInterface;
use Zend\EventManager\ListenerAggregateInterface;
/**
* Module loader listener
*/
class ModuleLoaderListener extends AbstractListener implements ListenerAggregateInterface
{
/**
* @var array
*/
protected $moduleLoader;
/**
* @var bool
*/
protected $generateCache;
/**
* @var array
*/
protected $listeners = array();
/**
* Constructor.
*
* Creates an instance of the ModuleAutoloader and injects the module paths
* into it.
*
* @param ListenerOptions $options
*/
public function __construct(ListenerOptions $options = null)
{
parent::__construct($options);
$this->generateCache = $this->options->getModuleMapCacheEnabled();
$this->moduleLoader = new ModuleAutoloader($this->options->getModulePaths());
if ($this->hasCachedClassMap()) {
$this->generateCache = false;
$this->moduleLoader->setModuleClassMap($this->getCachedConfig());
}
}
/**
* Attach one or more listeners
*
* @param EventManagerInterface $events
* @return LocatorRegistrationListener
*/
public function attach(EventManagerInterface $events)
{
$this->listeners[] = $events->attach(
ModuleEvent::EVENT_LOAD_MODULES,
array($this->moduleLoader, 'register'),
9000
);
if ($this->generateCache) {
$this->listeners[] = $events->attach(
ModuleEvent::EVENT_LOAD_MODULES_POST,
array($this, 'onLoadModulesPost')
);
}
return $this;
}
/**
* Detach all previously attached listeners
*
* @param EventManagerInterface $events
* @return void
*/
public function detach(EventManagerInterface $events)
{
foreach ($this->listeners as $key => $listener) {
if ($events->detach($listener)) {
unset($this->listeners[$key]);
}
}
}
/**
* @return bool
*/
protected function hasCachedClassMap()
{
if (
$this->options->getModuleMapCacheEnabled()
&& file_exists($this->options->getModuleMapCacheFile())
) {
return true;
}
return false;
}
/**
* @return array
*/
protected function getCachedConfig()
{
return include $this->options->getModuleMapCacheFile();
}
/**
* loadModulesPost
*
* Unregisters the ModuleLoader and generates the module class map cache.
*
* @param ModuleEvent $event
*/
public function onLoadModulesPost(ModuleEvent $event)
{
$this->moduleLoader->unregister();
$this->writeArrayToFile(
$this->options->getModuleMapCacheFile(),
$this->moduleLoader->getModuleClassMap()
);
}
}