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<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_Rest
* @subpackage Client
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Result.php 16541 2009-07-07 06:59:03Z bkarwin $
*/
/**
* @category Zend
* @package Zend_Rest
* @subpackage Client
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Rest_Client_Result implements IteratorAggregate {
/**
* @var SimpleXMLElement
*/
protected $_sxml;
/**
* Constructor
*
* @param string $data XML Result
* @return void
*/
public function __construct($data)
{
set_error_handler(array($this, 'handleXmlErrors'));
$this->_sxml = simplexml_load_string($data);
if($this->_sxml === false) {
$this->handleXmlErrors(0, "An error occured while parsing the REST response with simplexml.");
} else {
restore_error_handler();
}
}
/**
* Temporary error handler for parsing REST responses.
*
* @param int $errno
* @param string $errstr
* @param string $errfile
* @param string $errline
* @param array $errcontext
* @throws Zend_Result_Client_Result_Exception
*/
public function handleXmlErrors($errno, $errstr, $errfile = null, $errline = null, array $errcontext = null)
{
restore_error_handler();
require_once "Zend/Rest/Client/Result/Exception.php";
throw new Zend_Rest_Client_Result_Exception("REST Response Error: ".$errstr);
}
/**
* Casts a SimpleXMLElement to its appropriate PHP value
*
* @param SimpleXMLElement $value
* @return mixed
*/
public function toValue(SimpleXMLElement $value)
{
$node = dom_import_simplexml($value);
return $node->nodeValue;
}
/**
* Get Property Overload
*
* @param string $name
* @return null|SimpleXMLElement|array Null if not found, SimpleXMLElement if only one value found, array of Zend_Rest_Client_Result objects otherwise
*/
public function __get($name)
{
if (isset($this->_sxml->{$name})) {
return $this->_sxml->{$name};
}
$result = $this->_sxml->xpath("//$name");
$count = count($result);
if ($count == 0) {
return null;
} elseif ($count == 1) {
return $result[0];
} else {
return $result;
}
}
/**
* Cast properties to PHP values
*
* For arrays, loops through each element and casts to a value as well.
*
* @param string $method
* @param array $args
* @return mixed
*/
public function __call($method, $args)
{
if (null !== ($value = $this->__get($method))) {
if (!is_array($value)) {
return $this->toValue($value);
} else {
$return = array();
foreach ($value as $element) {
$return[] = $this->toValue($element);
}
return $return;
}
}
return null;
}
/**
* Isset Overload
*
* @param string $name
* @return boolean
*/
public function __isset($name)
{
if (isset($this->_sxml->{$name})) {
return true;
}
$result = $this->_sxml->xpath("//$name");
if (sizeof($result) > 0) {
return true;
}
return false;
}
/**
* Implement IteratorAggregate::getIterator()
*
* @return SimpleXMLIterator
*/
public function getIterator()
{
return $this->_sxml;
}
/**
* Get Request Status
*
* @return boolean
*/
public function getStatus()
{
$status = $this->_sxml->xpath('//status/text()');
$status = strtolower($status[0]);
if (ctype_alpha($status) && $status == 'success') {
return true;
} elseif (ctype_alpha($status) && $status != 'success') {
return false;
} else {
return (bool) $status;
}
}
public function isError()
{
$status = $this->getStatus();
if ($status) {
return false;
} else {
return true;
}
}
public function isSuccess()
{
$status = $this->getStatus();
if ($status) {
return true;
} else {
return false;
}
}
/**
* toString overload
*
* Be sure to only call this when the result is a single value!
*
* @return string
*/
public function __toString()
{
if (!$this->getStatus()) {
$message = $this->_sxml->xpath('//message');
return (string) $message[0];
} else {
$result = $this->_sxml->xpath('//response');
if (sizeof($result) > 1) {
return (string) "An error occured.";
} else {
return (string) $result[0];
}
}
}
}
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