1: <?php
  2: 
  3: /**
  4:  * Picon Framework
  5:  * http://code.google.com/p/picon-framework/
  6:  *
  7:  * Copyright (C) 2011-2012 Martin Cassidy <martin.cassidy@webquub.com>
  8: 
  9:  * Picon Framework is free software: you can redistribute it and/or modify
 10:  * it under the terms of the GNU General Public License as published by
 11:  * the Free Software Foundation, either version 3 of the License, or
 12:  * (at your option) any later version.
 13: 
 14:  * Picon Framework is distributed in the hope that it will be useful,
 15:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 16:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17:  *  General Public License for more details.
 18: 
 19:  * You should have received a copy of the GNU General Public License
 20:  * along with Picon Framework.  If not, see <http://www.gnu.org/licenses/>.
 21:  * */
 22: 
 23: namespace picon;
 24: 
 25: /**
 26:  * Context loader super class
 27:  * 
 28:  * @author Martin Cassidy
 29:  * @package context
 30:  */
 31: abstract class AbstractContextLoader
 32: {
 33:     const CONTEXT_RESOURCE_NAME = 'application_context';
 34:     
 35:     private $resourceMap;
 36:     private $resources = array();
 37:     
 38:     public function load(Config $config)
 39:     {
 40:         $this->resourceMap = CacheManager::loadResource(self::CONTEXT_RESOURCE_NAME, CacheManager::APPLICATION_SCOPE);
 41:         
 42:         if($this->resourceMap==null)
 43:         {
 44:             ApplicationInitializer::loadAssets(ASSETS_DIRECTORY);
 45:             $this->resourceMap = $this->loadResourceMap($this->getClasses());
 46:             CacheManager::saveResource(self::CONTEXT_RESOURCE_NAME, $this->resourceMap, CacheManager::APPLICATION_SCOPE);
 47:         }
 48: 
 49:         $this->createResources();
 50:         
 51:         $this->loadDataSources($config->getDataSources());
 52:         return new ApplicationContext($this->resources);
 53:     }
 54:     
 55:     protected abstract function loadResourceMap($classes);
 56:     
 57:     protected abstract function loadDataSources($sourceConfig);
 58:     
 59:     private function createResources()
 60:     {
 61:         foreach($this->resourceMap as $name => $class)
 62:         {
 63:             $this->pushToResourceMap($name, new $class());
 64:         }
 65:     }
 66:     
 67:     /**
 68:      * Adds the given resource to the map of resources
 69:      * @param String $resourceName The name of the resource
 70:      * @param Object $resource The research
 71:      */
 72:     protected function pushToResourceMap($resourceName, $resource)
 73:     {
 74:         if(array_key_exists($resourceName, $this->resources))
 75:         {
 76:             throw new \DuplicateResourceException(sprintf("The resource %s already exists.", $resourceName));
 77:         }
 78:         $this->resources[$resourceName] = $resource;
 79:     }
 80:     
 81:     /**
 82:      * Gets the resource name for an object. By default this is the class
 83:      * name (with a lowercase first letter e.g. class MyResource is named
 84:      * myResource) If name has been specified in the annotation then
 85:      * the name is extracted from there instead.
 86:      * @param Annotation $annotation
 87:      * @param String $className
 88:      * @return type 
 89:      */
 90:     protected function getResourceName(\Annotation $annotation, $className)
 91:     {
 92:         $name = $annotation->name;
 93:         
 94:         if($name=="")
 95:         {
 96:             return strtolower(substr($className, 0, 1)).substr($className,1,strlen($className));
 97:         }
 98:         else
 99:         {
100:             return $name;
101:         }
102:     }
103:     
104:     public static function getClasses()
105:     {
106:         return get_declared_classes();
107:     }
108:     
109:     public function createDataSources()
110:     {
111:         
112:     }
113: }
114: 
115: ?>
116: