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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_Service_Amazon
* @subpackage Ec2
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Response.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* @see Zend_Http_Response
*/
require_once 'Zend/Http/Response.php';
/**
* @category Zend
* @package Zend_Service_Amazon
* @subpackage Ec2
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_Service_Amazon_Ec2_Response {
/**
* XML namespace used for EC2 responses.
*/
protected $_xmlNamespace = 'http://ec2.amazonaws.com/doc/2009-04-04/';
/**
* The original HTTP response
*
* This contains the response body and headers.
*
* @var Zend_Http_Response
*/
private $_httpResponse = null;
/**
* The response document object
*
* @var DOMDocument
*/
private $_document = null;
/**
* The response XPath
*
* @var DOMXPath
*/
private $_xpath = null;
/**
* Last error code
*
* @var integer
*/
private $_errorCode = 0;
/**
* Last error message
*
* @var string
*/
private $_errorMessage = '';
/**
* Creates a new high-level EC2 response object
*
* @param Zend_Http_Response $httpResponse the HTTP response.
*/
public function __construct(Zend_Http_Response $httpResponse)
{
$this->_httpResponse = $httpResponse;
}
/**
* Gets the XPath object for this response
*
* @return DOMXPath the XPath object for response.
*/
public function getXPath()
{
if ($this->_xpath === null) {
$document = $this->getDocument();
if ($document === false) {
$this->_xpath = false;
} else {
$this->_xpath = new DOMXPath($document);
$this->_xpath->registerNamespace('ec2',
$this->getNamespace());
}
}
return $this->_xpath;
}
/**
* Gets the document object for this response
*
* @return DOMDocument the DOM Document for this response.
*/
public function getDocument()
{
try {
$body = $this->_httpResponse->getBody();
} catch (Zend_Http_Exception $e) {
$body = false;
}
if ($this->_document === null) {
if ($body !== false) {
// turn off libxml error handling
$errors = libxml_use_internal_errors();
$this->_document = new DOMDocument();
if (!$this->_document->loadXML($body)) {
$this->_document = false;
}
// reset libxml error handling
libxml_clear_errors();
libxml_use_internal_errors($errors);
} else {
$this->_document = false;
}
}
return $this->_document;
}
/**
* Return the current set XML Namespace.
*
* @return string
*/
public function getNamespace()
{
return $this->_xmlNamespace;
}
/**
* Set a new XML Namespace
*
* @param string $namespace
*/
public function setNamespace($namespace)
{
$this->_xmlNamespace = $namespace;
}
}
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