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<?php
/*
* jsonrpc_dispatcher.php - <short-description>
*
* Copyright (C) 2006 - Marcus Lunzenauer <mlunzena@uos.de>
*
* 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.
*/
/**
* <ClassDescription>
*
* @package studip
* @subpackage ws
*
* @author mlunzena
* @copyright (c) Authors
* @version $Id: jsonrpc_dispatcher.php 3888 2006-09-06 13:27:19Z mlunzena $
*/
class Studip_Ws_JsonrpcDispatcher extends Studip_Ws_Dispatcher {
/**
* <MethodDescription>
*
* @param type <description>
*
* @return type <description>
*/
function dispatch($msg = NULL) {
# ensure correct invocation
if (is_null($msg) || !is_a($msg, 'jsonrpcmsg'))
return $this->throw_exception('functions_parameters_type must not be '.
'phpvals.');
# get decoded parameters
$len = $msg->getNumParams();
$argument_array = array();
for ($i = 0; $i < $len; ++$i)
$argument_array[] = php_jsonrpc_decode($msg->getParam($i));
# return result
return new jsonrpcresp(
php_jsonrpc_encode($this->invoke($msg->method(), $argument_array)));
}
/**
* <MethodDescription>
*
* @param type <description>
*
* @return type <description>
*/
function throw_exception($message/*, ...*/) {
$args = func_get_args();
return new jsonrpcresp(0, $GLOBALS['xmlrpcerruser'] + 1,
vsprintf(array_shift($args), $args));
}
/**
* Class method that composes the dispatch map from the available methods.
*
* @return array This service's dispatch map.
*
*/
function get_dispatch_map() {
$dispatch_map = array();
foreach ($this->api_methods as $method_name => $method)
$dispatch_map[$method_name] = $this->map_method($method);
return $dispatch_map;
}
/**
* <MethodDescription>
*
* @param type <description>
*
* @return type <description>
*/
function map_method($method) {
# TODO validate method
## 1. function
$function = array(&$this, 'dispatch');
## 2. signature
$signature = array(array());
# return value
$signature[0][] = $this->translate_type($method->returns);
# arguments
foreach ($method->expects as $type)
$signature[0][] = $this->translate_type($type);
## 3. docstring
$docstring = $method->description;
return compact('function', 'signature', 'docstring');
}
/**
* <MethodDescription>
*
* @param type <description>
*
* @return type <description>
*/
function translate_type($type0) {
switch ($type = Studip_Ws_Type::get_type($type0)) {
case STUDIP_WS_TYPE_INT:
return $GLOBALS['xmlrpcInt'];
case STUDIP_WS_TYPE_STRING:
return $GLOBALS['xmlrpcString'];
case STUDIP_WS_TYPE_BASE64:
return $GLOBALS['xmlrpcBase64'];
case STUDIP_WS_TYPE_BOOL:
return $GLOBALS['xmlrpcBoolean'];
case STUDIP_WS_TYPE_FLOAT:
return $GLOBALS['xmlrpcDouble'];
case STUDIP_WS_TYPE_NULL:
return $GLOBALS['xmlrpcBoolean'];
case STUDIP_WS_TYPE_ARRAY:
return $GLOBALS['xmlrpcArray'];
case STUDIP_WS_TYPE_STRUCT:
return $GLOBALS['xmlrpcStruct'];
}
trigger_error(sprintf('Type %s could not be found.',
var_export($type, TRUE)),
E_USER_ERROR);
return $GLOBALS['xmlrpcString'];
}
}
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