Subversion-Projekte lars-tiefland.php_share

<?php

class FeatureFactory {

  var $_features;

  function FeatureFactory() {

    $this->_features = array();

  }

  function &get($name) {

    $instance =& FeatureFactory::get_instance();

    return $instance->_get($name);

  }

  function &_get($name) {

    if (!isset($this->__features[$name])) {

      $this->_features[$name] =& $this->_load($name);

    };

    return $this->_features[$name];

  }

  function &_load($name) {

    $normalized_name = strtolower(preg_replace('/[^\w\d\.]/i', '_', $name));

    $file_name = HTML2PS_DIR.'features/'.$normalized_name.'.php';

    $class_name = 'Feature'.join('',array_map('ucfirst',explode('.',$normalized_name)));

    if (!file_exists($file_name)) {

      $null = null;

      return $null;

    };

    require_once($file_name);

    $feature_object =& new $class_name;

    return $feature_object;

  }

  function &get_instance() {

    static $instance = null;

    if (is_null($instance)) {

      $instance =& new FeatureFactory();

    };

    return $instance;

  }

}

?>