<?php

/*
FileArts
Copyright (C) 2007 Peter Goodman, Geoffrey Goodman

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

class FARegistry {
	var $_cache = array();
	
	function set($key, &$object) {
		$this->_cache[$key] = &$object;
	}
	
	function &get($key) {
		$ret = NULL;
		
		if (isset($this->_cache[$key])) {
			$ret = &$this->_cache[$key];
		}
		
		return $ret;
	}
}

class FALazyObject {
	var $_class;
	var $_args = array();
	
	function FALazyObject($class, $args = NULL) {
		$this->_class = $class;

		if (is_array($args))
			$this->_args = $args;
	}
	
	function &create($class, $args = NULL) {
		if (!class_exists($class))
			trigger_error("Class does not exist: {$class}", E_USER_ERROR);
		
		if (!is_array($args))
			$args = array();
		
		$ret = NULL;
		$arglist = '';
		$sep = '';
		
		foreach ($args as $key => $value) {
			$arglist .= $sep."\$args[$key]";
			$sep = ', ';
		}
		
		eval('$ret = &new '.$class."($arglist);");
		
		return $ret;
	}

	function &load($args = NULL) {
		if (is_array($args))
			$this->_args = $args;

		return FALazyObject::create($this->_class, $this->_args);
	}
}
?>