Autoloader.php

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<?php

class Robo47_Application_Resource_Autoloader
extends Zend_Application_Resource_ResourceAbstract
{

    protected $_autoloader = null;
    
    public function init()
    {
        if (!empty($this->_options)) {
            $this->_autoloader = $this->_setupAutoloader($this->_options);
        } else {
            $message = 'Empty options in resource ' .
                'Robo47_Application_Resource_Autoloader.';
            throw new Robo47_Application_Resource_Exception($message);
        }
    }

    public function _setupAutoloader($options)
    {
        if (!isset($options['classname'])) {
            $message = 'Autoloader config doesn\'t contain classname';
            throw new Robo47_Application_Resource_Exception($message);
        }

        if (!isset($options['prefix'])) {
            $message = 'Autoloader config doesn\'t contain prefix';
            throw new Robo47_Application_Resource_Exception($message);
        }

        $autoLoader = Zend_Loader_Autoloader::getInstance();
        $classname = $options['classname'];
        $prefix = $options['prefix'];
        $autoLoaderInstance = new $classname();
        $autoLoader->pushAutoloader($autoLoaderInstance, $prefix);
        return $autoLoaderInstance;
    }

    public function getAutoloader()
    {
        return $this->_autoloader;
    }
}