Struct.php

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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 {{{ 
 
// }}}
 
// dependencies {{{
require_once 'XML/RPC2/Exception.php';
require_once 'XML/RPC2/Backend/Php/Value.php';
// }}}
 
class XML_RPC2_Backend_Php_Value_Struct extends XML_RPC2_Backend_Php_Value
{
 
    // {{{ setNativeValue()
    
    protected function setNativeValue($value) 
    {
        if (!is_array($value)) {
            throw new XML_RPC2_InvalidTypeException(sprintf('Cannot create XML_RPC2_Backend_Php_Value_Struct from type \'%s\'.', gettype($nativeValue)));
        }
        parent::setNativeValue($value);
    }
    
    // }}}
    // {{{ constructor
    
    public function __construct($nativeValue) 
    {
        $this->setNativeValue($nativeValue);
    }
    
    // }}}
    // {{{ encode()
    
    public function encode() 
    {
        $result = '<struct>';
        foreach($this->getNativeValue() as $name => $element) {
            $result .= '<member>';
            $result .= '<name>';
            $result .= strtr($name, array('&' => '&amp;', '<' => '&lt;', '>' => '&gt;'));
            $result .= '</name>';
            $result .= '<value>';
            $result .= ($element instanceof XML_RPC2_Backend_Php_Value) ? 
                        $element->encode() : 
                        XML_RPC2_Backend_Php_Value::createFromNative($element)->encode();
            $result .= '</value>';
            $result .= '</member>';
        }
        $result .= '</struct>';
        return $result;
    }
    
    // }}}
    // {{{ decode()
    
    public static function decode($xml) 
    {
        // TODO Remove reparsing of XML fragment, when SimpleXML proves more solid. Currently it segfaults when
        // xpath is used both in an element and in one of its children
        $xml = simplexml_load_string($xml->asXML());
        $values = $xml->xpath('/value/struct/member');
        $result = array();
        foreach (array_keys($values) as $i) {
            $result[(string) $values[$i]->name] = XML_RPC2_Backend_Php_Value::createFromDecode($values[$i]->value)->getNativeValue();
        }
        return $result;
    }
    
    // }}}
    
}
 
?>