You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
4.0 KiB
PHP
113 lines
4.0 KiB
PHP
<?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_Gdata
|
|
* @subpackage App
|
|
* @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: Util.php 16971 2009-07-22 18:05:45Z mikaelkael $
|
|
*/
|
|
|
|
/**
|
|
* Utility class for static functions needed by Zend_Gdata_App
|
|
*
|
|
* @category Zend
|
|
* @package Zend_Gdata
|
|
* @subpackage App
|
|
* @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_Gdata_App_Util
|
|
{
|
|
|
|
/**
|
|
* Convert timestamp into RFC 3339 date string.
|
|
* 2005-04-19T15:30:00
|
|
*
|
|
* @param int $timestamp
|
|
* @throws Zend_Gdata_App_InvalidArgumentException
|
|
*/
|
|
public static function formatTimestamp($timestamp)
|
|
{
|
|
$rfc3339 = '/^(\d{4})\-?(\d{2})\-?(\d{2})((T|t)(\d{2})\:?(\d{2})' .
|
|
'\:?(\d{2})(\.\d{1,})?((Z|z)|([\+\-])(\d{2})\:?(\d{2})))?$/';
|
|
|
|
if (ctype_digit($timestamp)) {
|
|
return gmdate('Y-m-d\TH:i:sP', $timestamp);
|
|
} elseif (preg_match($rfc3339, $timestamp) > 0) {
|
|
// timestamp is already properly formatted
|
|
return $timestamp;
|
|
} else {
|
|
$ts = strtotime($timestamp);
|
|
if ($ts === false) {
|
|
require_once 'Zend/Gdata/App/InvalidArgumentException.php';
|
|
throw new Zend_Gdata_App_InvalidArgumentException("Invalid timestamp: $timestamp.");
|
|
}
|
|
return date('Y-m-d\TH:i:s', $ts);
|
|
}
|
|
}
|
|
|
|
/** Find the greatest key that is less than or equal to a given upper
|
|
* bound, and return the value associated with that key.
|
|
*
|
|
* @param integer|null $maximumKey The upper bound for keys. If null, the
|
|
* maxiumum valued key will be found.
|
|
* @param array $collection An two-dimensional array of key/value pairs
|
|
* to search through.
|
|
* @returns mixed The value corresponding to the located key.
|
|
* @throws Zend_Gdata_App_Exception Thrown if $collection is empty.
|
|
*/
|
|
public static function findGreatestBoundedValue($maximumKey, $collection)
|
|
{
|
|
$found = false;
|
|
$foundKey = $maximumKey;
|
|
|
|
// Sanity check: Make sure that the collection isn't empty
|
|
if (sizeof($collection) == 0) {
|
|
require_once 'Zend/Gdata/App/Exception.php';
|
|
throw new Zend_Gdata_App_Exception("Empty namespace collection encountered.");
|
|
}
|
|
|
|
if ($maximumKey === null) {
|
|
// If the key is null, then we return the maximum available
|
|
$keys = array_keys($collection);
|
|
sort($keys);
|
|
$found = true;
|
|
$foundKey = end($keys);
|
|
} else {
|
|
// Otherwise, we optimistically guess that the current version
|
|
// will have a matching namespce. If that fails, we decrement the
|
|
// version until we find a match.
|
|
while (!$found && $foundKey >= 0) {
|
|
if (array_key_exists($foundKey, $collection))
|
|
$found = true;
|
|
else
|
|
$foundKey--;
|
|
}
|
|
}
|
|
|
|
// Guard: A namespace wasn't found. Either none were registered, or
|
|
// the current protcol version is lower than the maximum namespace.
|
|
if (!$found) {
|
|
require_once 'Zend/Gdata/App/Exception.php';
|
|
throw new Zend_Gdata_App_Exception("Namespace compatible with current protocol not found.");
|
|
}
|
|
|
|
return $foundKey;
|
|
}
|
|
|
|
}
|