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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
// LICENSE AGREEMENT. If folded, press za here to unfold and read license {{{
/**
* +-----------------------------------------------------------------------------+
* | Copyright (c) 2004-2006 Sergio Goncalves Carvalho |
* +-----------------------------------------------------------------------------+
* | This file is part of XML_RPC2. |
* | |
* | XML_RPC2 is free software; you can redistribute it and/or modify |
* | it under the terms of the GNU Lesser General Public License as published by |
* | the Free Software Foundation; either version 2.1 of the License, or |
* | (at your option) any later version. |
* | |
* | XML_RPC2 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 Lesser General Public License for more details. |
* | |
* | You should have received a copy of the GNU Lesser General Public License |
* | along with XML_RPC2; if not, write to the Free Software |
* | Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
* | 02111-1307 USA |
* +-----------------------------------------------------------------------------+
* | Author: Sergio Carvalho <sergio.carvalho@portugalmail.com> |
* +-----------------------------------------------------------------------------+
*
* @category XML
* @package XML_RPC2
* @author Sergio Carvalho <sergio.carvalho@portugalmail.com>
* @copyright 2004-2006 Sergio Carvalho
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version CVS: $Id: Class.php 205680 2006-01-22 01:54:48Z fab $
* @link http://pear.php.net/package/XML_RPC2
*/
// }}}
// dependencies {{{
require_once 'XML/RPC2/Exception.php';
require_once 'XML/RPC2/Server/Method.php';
require_once 'XML/RPC2/Server/CallHandler.php';
// }}}
/**
* This class is a server call handler which exposes a classe's static public methods.
*
* XML_RPC2_Server_Callhandler_Class is the preferred call handler to use when you are
* designing your XML-RPC server from the ground up. Usage is quite simple:
* - Create a class holding all of the XML-RPC server's exported procedures as public static methods (the interface class).
* - PhpDoc the classes' methods, including at least method signature (params and return types) and short description.
* - Use the XML_RPC2 factory method to create a server based on the interface class.
* A simple example:
* <code>
* /**
* * echoecho echoes the message received
* *
* * @param string Message
* * @return string The echo
* {@*}
* class EchoServer {
* public static function echoecho($string)
* {
* return $string;
* }
* }
*
* require_once 'XML/RPC2/Server.php';
* $server = XML_RPC2_Server::create('EchoServer');
* $server->handleCall();
* </code>
*
* Use this call handler if you have designed your xml-rpc external interface as a set of
* public class methods on a given class. If, on the other hand, you intend to export an
* already existing class, it may be that not all of the methods you want to export are static.
* In that case, it is probably best to use XML_RPC2_Server_Callhandler_Instance instead.
*
* @category XML
* @package XML_RPC2
* @author Sergio Carvalho <sergio.carvalho@portugalmail.com>
* @copyright 2004-2006 Sergio Carvalho
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @link http://pear.php.net/package/XML_RPC2
* @see XML_RPC2_Server::create
* @see XML_RPC2_Server_Callhandler_Instance
*/
class XML_RPC2_Server_Callhandler_Class extends XML_RPC2_Server_CallHandler
{
// {{{ properties
/**
* name of target class
*
* @var string
*/
private $_className;
// }}}
// {{{ constructor
/**
* XML_RPC2_Server_Callhandler_Class Constructor. Creates a new call handler exporting the give static class' methods
*
* Before using this constructor, take a look at XML_RPC2_Server::create. The factory
* method is usually a quicker way of instantiating the server and its call handler.
*
* @see XML_RPC2_Server::create()
* @param string The Target class. Calls will be made on this class
* @param string Default prefix to prepend to all exported methods (defaults to '')
*/
public function __construct($className, $defaultPrefix)
{
$this->_className = $className;
$reflection = new ReflectionClass($className);
foreach ($reflection->getMethods() as $method) {
if ($method->isStatic() && $method->isPublic() && !$method->isAbstract() && !$method->isConstructor())
{
$candidate = new XML_RPC2_Server_Method($method, $defaultPrefix);
if (!$candidate->isHidden()) $this->addMethod($candidate);
}
}
}
// }}}
// {{{ __call()
/**
* __call catchall. Delegate the method call to the target class, and return its result
*
* @param string Name of method to call
* @param array Array of parameters for call
* @return mixed Whatever the target method returned
*/
public function __call($methodName, $parameters)
{
if (!array_key_exists($methodName, $this->getMethods())) {
throw new XML_RPC2_UnknownMethodException("Method $methodName is not exported by this server");
}
return call_user_func_array(array($this->_className, $this->getMethod($methodName)->getInternalMethod()), $parameters);
}
// }}}
}
?>
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