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AdapterPluginManager.php
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AdapterPluginManager.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\Paginator;
use Zend\ServiceManager\AbstractPluginManager;
/**
* Plugin manager implementation for paginator adapters.
*
* Enforces that adapters retrieved are instances of
* Adapter\AdapterInterface. Additionally, it registers a number of default
* adapters available.
*/
class AdapterPluginManager extends AbstractPluginManager
{
/**
* Default set of adapters
*
* @var array
*/
protected $invokableClasses = array(
'array' => 'Zend\Paginator\Adapter\ArrayAdapter',
'iterator' => 'Zend\Paginator\Adapter\Iterator',
'null' => 'Zend\Paginator\Adapter\Null',
);
/**
* Default set of adapter factories
*
* @var array
*/
protected $factories = array(
'dbselect' => 'Zend\Paginator\Adapter\Service\DbSelectFactory'
);
/**
* Attempt to create an instance via a factory
*
* @param string $canonicalName
* @param string $requestedName
* @return mixed
* @throws \Zend\ServiceManager\Exception\ServiceNotCreatedException If factory is not callable
*/
protected function createFromFactory($canonicalName, $requestedName)
{
$factory = $this->factories[$canonicalName];
if (is_string($factory) && class_exists($factory, true)) {
$factory = new $factory($this->creationOptions);
$this->factories[$canonicalName] = $factory;
}
return parent::createFromFactory($canonicalName, $requestedName);
}
/**
* Validate the plugin
*
* Checks that the adapter loaded is an instance
* of Adapter\AdapterInterface.
*
* @param mixed $plugin
* @return void
* @throws Exception\RuntimeException if invalid
*/
public function validatePlugin($plugin)
{
if ($plugin instanceof Adapter\AdapterInterface) {
// we're okay
return;
}
throw new Exception\RuntimeException(sprintf(
'Plugin of type %s is invalid; must implement %s\Adapter\AdapterInterface',
(is_object($plugin) ? get_class($plugin) : gettype($plugin)),
__NAMESPACE__
));
}
}