<?php
if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
/*********************************************************************************
 * SugarCRM is a customer relationship management program developed by
 * SugarCRM, Inc. Copyright (C) 2004-2010 SugarCRM Inc.
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Affero General Public License version 3 as published by the
 * Free Software Foundation with the addition of the following permission added
 * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
 * IN WHICH THE COPYRIGHT IS OWNED BY SUGARCRM, SUGARCRM DISCLAIMS THE WARRANTY
 * OF NON INFRINGEMENT OF THIRD PARTY RIGHTS.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU Affero General Public License along with
 * this program; if not, see http://www.gnu.org/licenses or write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * You can contact SugarCRM, Inc. headquarters at 10050 North Wolfe Road,
 * SW2-130, Cupertino, CA 95014, USA. or at email address contact@sugarcrm.com.
 * 
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License version 3.
 * 
 * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
 * these Appropriate Legal Notices must retain the display of the "Powered by
 * SugarCRM" logo. If the display of the logo is not reasonably feasible for
 * technical reasons, the Appropriate Legal Notices must display the words
 * "Powered by SugarCRM".
 ********************************************************************************/

class FilterFactory{
    
	static $filter_map = array();
    
	public static function getInstance($source_name, $filter_name=''){
		require_once('include/connectors/filters/default/filter.php');
		$key = $source_name . $filter_name;		
		if(empty(self::$filter_map[$key])) {
			
			if(empty($filter_name)){
			   $filter_name = $source_name;
			}			
			
			//split the wrapper name to find the path to the file.
			$dir = str_replace('_','/',$filter_name);
			$parts = explode("/", $dir);
			$file = $parts[count($parts)-1];

			//check if this override wrapper file exists.
		    require_once('include/connectors/ConnectorFactory.php');
			if(file_exists("modules/Connectors/connectors/filters/{$dir}/{$file}.php") ||
			   file_exists("custom/modules/Connectors/connectors/filters/{$dir}/{$file}.php")) {
				ConnectorFactory::load($filter_name, 'filters');
				try{
					$filter_name .= '_filter';
				}catch(Exception $ex){
					return null;
				}
			}else{
				//if there is no override wrapper, use the default.
				$filter_name = 'default_filter';
			}
	
			$component = ConnectorFactory::getInstance($source_name);
			$filter = new $filter_name();
			$filter->setComponent($component);
			self::$filter_map[$key] = $filter;
		} //if
		return self::$filter_map[$key];
	}
	
}
?>