169 lines
4.2 KiB
PHP
169 lines
4.2 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_Feed_Reader
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: Feed.php 18951 2009-11-12 16:26:19Z alexander $
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*/
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/**
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* @see Zend_Feed_Reader_Extension_FeedAbstract
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*/
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require_once 'Zend/Feed/Reader/Extension/FeedAbstract.php';
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require_once 'Zend/Date.php';
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/**
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* @category Zend
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* @package Zend_Feed_Reader
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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class Zend_Feed_Reader_Extension_Syndication_Feed
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extends Zend_Feed_Reader_Extension_FeedAbstract
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{
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/**
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* Get update period
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* @return string
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*/
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public function getUpdatePeriod()
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{
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$name = 'updatePeriod';
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$period = $this->_getData($name);
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if ($period === null) {
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$this->_data[$name] = 'daily';
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return 'daily'; //Default specified by spec
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}
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switch ($period)
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{
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case 'hourly':
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case 'daily':
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case 'weekly':
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case 'yearly':
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return $period;
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default:
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throw new Zend_Feed_Exception("Feed specified invalid update period: '$period'."
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. " Must be one of hourly, daily, weekly or yearly"
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);
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}
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}
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/**
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* Get update frequency
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* @return int
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*/
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public function getUpdateFrequency()
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{
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$name = 'updateFrequency';
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$freq = $this->_getData($name, 'number');
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if (!$freq || $freq < 1) {
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$this->_data[$name] = 1;
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return 1;
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}
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return $freq;
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}
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/**
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* Get update frequency as ticks
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* @return int
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*/
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public function getUpdateFrequencyAsTicks()
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{
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$name = 'updateFrequency';
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$freq = $this->_getData($name, 'number');
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if (!$freq || $freq < 1) {
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$this->_data[$name] = 1;
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$freq = 1;
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}
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$period = $this->getUpdatePeriod();
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$ticks = 1;
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switch ($period)
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{
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//intentional fall through
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case 'yearly':
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$ticks *= 52; //TODO: fix generalisation, how?
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case 'weekly':
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$ticks *= 7;
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case 'daily':
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$ticks *= 24;
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case 'hourly':
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$ticks *= 3600;
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break;
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default: //Never arrive here, exception thrown in getPeriod()
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break;
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}
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return $ticks / $freq;
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}
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/**
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* Get update base
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*
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* @return Zend_Date|null
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*/
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public function getUpdateBase()
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{
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$updateBase = $this->_getData('updateBase');
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$date = null;
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if ($updateBase) {
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$date = new Zend_Date;
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$date->set($updateBase, Zend_Date::W3C);
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}
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return $date;
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}
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/**
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* Get the entry data specified by name
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*
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* @param string $name
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* @param string $type
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* @return mixed|null
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*/
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private function _getData($name, $type = 'string')
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{
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if (array_key_exists($name, $this->_data)) {
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return $this->_data[$name];
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}
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$data = $this->_xpath->evaluate($type . '(' . $this->getXpathPrefix() . '/syn10:' . $name . ')');
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if (!$data) {
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$data = null;
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}
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$this->_data[$name] = $data;
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return $data;
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}
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/**
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* Register Syndication namespaces
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*
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* @return void
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*/
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protected function _registerNamespaces()
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{
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$this->_xpath->registerNamespace('syn10', 'http://purl.org/rss/1.0/modules/syndication/');
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}
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}
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