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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_Feed_Reader
* @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: EntryAbstract.php 20096 2010-01-06 02:05:09Z bkarwin $
*/
/**
* @category Zend
* @package Zend_Feed_Reader
* @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
abstract class Zend_Feed_Reader_Extension_EntryAbstract
{
/**
* Feed entry data
*
* @var array
*/
protected $_data = array();
/**
* DOM document object
*
* @var DOMDocument
*/
protected $_domDocument = null;
/**
* Entry instance
*
* @var Zend_Feed_Entry_Abstract
*/
protected $_entry = null;
/**
* Pointer to the current entry
*
* @var int
*/
protected $_entryKey = 0;
/**
* XPath object
*
* @var DOMXPath
*/
protected $_xpath = null;
/**
* XPath query
*
* @var string
*/
protected $_xpathPrefix = '';
/**
* Constructor
*
* @param Zend_Feed_Entry_Abstract $entry
* @param int $entryKey
* @param string $type
* @return void
*/
public function __construct(DOMElement $entry, $entryKey, $type = null)
{
$this->_entry = $entry;
$this->_entryKey = $entryKey;
$this->_domDocument = $entry->ownerDocument;
if (!is_null($type)) {
$this->_data['type'] = $type;
} else {
$this->_data['type'] = Zend_Feed_Reader::detectType($entry->ownerDocument, true);
}
// set the XPath query prefix for the entry being queried
if ($this->getType() == Zend_Feed_Reader::TYPE_RSS_10
|| $this->getType() == Zend_Feed_Reader::TYPE_RSS_090
) {
$this->setXpathPrefix('//rss:item[' . ($this->_entryKey+1) . ']');
} elseif ($this->getType() == Zend_Feed_Reader::TYPE_ATOM_10
|| $this->getType() == Zend_Feed_Reader::TYPE_ATOM_03
) {
$this->setXpathPrefix('//atom:entry[' . ($this->_entryKey+1) . ']');
} else {
$this->setXpathPrefix('//item[' . ($this->_entryKey+1) . ']');
}
}
/**
* Get the DOM
*
* @return DOMDocument
*/
public function getDomDocument()
{
return $this->_domDocument;
}
/**
* Get the Entry's encoding
*
* @return string
*/
public function getEncoding()
{
$assumed = $this->getDomDocument()->encoding;
return $assumed;
}
/**
* Get the entry type
*
* @return string
*/
public function getType()
{
return $this->_data['type'];
}
/**
* Set the XPath query
*
* @param DOMXPath $xpath
* @return Zend_Feed_Reader_Extension_EntryAbstract
*/
public function setXpath(DOMXPath $xpath)
{
$this->_xpath = $xpath;
$this->_registerNamespaces();
return $this;
}
/**
* Get the XPath query object
*
* @return DOMXPath
*/
public function getXpath()
{
if (!$this->_xpath) {
$this->setXpath(new DOMXPath($this->getDomDocument()));
}
return $this->_xpath;
}
/**
* Serialize the entry to an array
*
* @return array
*/
public function toArray()
{
return $this->_data;
}
/**
* Get the XPath prefix
*
* @return string
*/
public function getXpathPrefix()
{
return $this->_xpathPrefix;
}
/**
* Set the XPath prefix
*
* @param string $prefix
* @return Zend_Feed_Reader_Extension_EntryAbstract
*/
public function setXpathPrefix($prefix)
{
$this->_xpathPrefix = $prefix;
return $this;
}
/**
* Register XML namespaces
*
* @return void
*/
protected abstract function _registerNamespaces();
}
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