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<?php
namespace Aws\Api;
use Aws\Api\Parser\Exception\ParserException;
use DateTime;
use DateTimeZone;
use Exception;
/**
* DateTime overrides that make DateTime work more seamlessly as a string,
* with JSON documents, and with JMESPath.
*/
class DateTimeResult extends \DateTime implements \JsonSerializable
{
/**
* Create a new DateTimeResult from a unix timestamp.
* The Unix epoch (or Unix time or POSIX time or Unix
* timestamp) is the number of seconds that have elapsed since
* January 1, 1970 (midnight UTC/GMT).
*
* @return DateTimeResult
* @throws Exception
*/
public static function fromEpoch($unixTimestamp)
{
if (!is_numeric($unixTimestamp)) {
throw new ParserException('Invalid timestamp value passed to DateTimeResult::fromEpoch');
}
// PHP 5.5 does not support sub-second precision
if (\PHP_VERSION_ID < 56000) {
return new self(gmdate('c', $unixTimestamp));
}
$decimalSeparator = isset(localeconv()['decimal_point']) ? localeconv()['decimal_point'] : ".";
$formatString = "U" . $decimalSeparator . "u";
$dateTime = DateTime::createFromFormat(
$formatString,
sprintf('%0.6f', $unixTimestamp),
new DateTimeZone('UTC')
);
if (false === $dateTime) {
throw new ParserException('Invalid timestamp value passed to DateTimeResult::fromEpoch');
}
return new self(
$dateTime->format('Y-m-d H:i:s.u'),
new DateTimeZone('UTC')
);
}
/**
* @return DateTimeResult
*/
public static function fromISO8601($iso8601Timestamp)
{
if (is_numeric($iso8601Timestamp) || !is_string($iso8601Timestamp)) {
throw new ParserException('Invalid timestamp value passed to DateTimeResult::fromISO8601');
}
return new DateTimeResult($iso8601Timestamp);
}
/**
* Create a new DateTimeResult from an unknown timestamp.
*
* @return DateTimeResult
* @throws Exception
*/
public static function fromTimestamp($timestamp, $expectedFormat = null)
{
if (empty($timestamp)) {
return self::fromEpoch(0);
}
if (!(is_string($timestamp) || is_numeric($timestamp))) {
throw new ParserException('Invalid timestamp value passed to DateTimeResult::fromTimestamp');
}
try {
if ($expectedFormat == 'iso8601') {
try {
return self::fromISO8601($timestamp);
} catch (Exception $exception) {
return self::fromEpoch($timestamp);
}
} else if ($expectedFormat == 'unixTimestamp') {
try {
return self::fromEpoch($timestamp);
} catch (Exception $exception) {
return self::fromISO8601($timestamp);
}
} else if (\Aws\is_valid_epoch($timestamp)) {
return self::fromEpoch($timestamp);
}
return self::fromISO8601($timestamp);
} catch (Exception $exception) {
throw new ParserException('Invalid timestamp value passed to DateTimeResult::fromTimestamp');
}
}
/**
* Serialize the DateTimeResult as an ISO 8601 date string.
*
* @return string
*/
public function __toString()
{
return $this->format('c');
}
/**
* Serialize the date as an ISO 8601 date when serializing as JSON.
*
* @return string
*/
#[\ReturnTypeWillChange]
public function jsonSerialize()
{
return (string) $this;
}
}
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