/**
* @return Timestamp
* Emulates PostgreSQL's date_trunc() function
**/
public function truncate(Date $time, $ceil = false)
{
$time = $time->toTimestamp();
$function = $ceil ? 'ceil' : 'floor';
if ($this->seconds) {
if ($this->seconds < 1) {
return $time->spawn();
}
$truncated = (int) ($function($time->toStamp() / $this->seconds) * $this->seconds);
return Timestamp::create($truncated);
} elseif ($this->days) {
$epochStartTruncated = Date::create('1970-01-05');
$truncatedDate = Date::create($time->toDate());
if ($ceil && $truncatedDate->toStamp() < $time->toStamp()) {
$truncatedDate->modify('+1 day');
}
$difference = Date::dayDifference($epochStartTruncated, $truncatedDate);
$truncated = (int) ($function($difference / $this->days) * $this->days);
return Timestamp::create($epochStartTruncated->spawn($truncated . ' days')->toStamp());
} elseif ($this->months) {
$monthsCount = $time->getYear() * 12 + ($time->getMonth() - 1);
if ($ceil && $time->getDay() - 1 + $time->getHour() + $time->getMinute() + $time->getSecond() > 0) {
$monthsCount += 0.1;
}
// delta
$truncated = (int) ($function($monthsCount / $this->months) * $this->months);
$months = $truncated % 12;
$years = ($truncated - $months) / 12;
Assert::isEqual($years, (int) $years);
$years = (int) $years;
$months = $months + 1;
return Timestamp::create("{$years}-{$months}-01 00:00:00");
}
Assert::isUnreachable();
}
public function makeItems(\SimpleXMLElement $xmlFeed)
{
$result = array();
if (isset($xmlFeed->channel->item)) {
foreach ($xmlFeed->channel->item as $item) {
$feedItem = FeedItem::create((string) $item->title)->setContent(FeedItemContent::create()->setBody((string) $item->description))->setPublished(Timestamp::create(strtotime((string) $item->pubDate)))->setLink((string) $item->link);
if (isset($item->guid)) {
$feedItem->setId($item->guid);
}
if (isset($item->category)) {
$feedItem->setCategory((string) $item->category);
}
$result[] = $feedItem;
}
}
return $result;
}
public function makeItems(\SimpleXMLElement $xmlFeed)
{
$result = [];
foreach ($xmlFeed->entry as $entry) {
$feedItem = FeedItem::create((string) $entry->title);
if (isset($entry->content)) {
$feedItem->setContent($this->makeFeedItemContent($entry->content));
}
if (isset($entry->summary)) {
$feedItem->setSummary($this->makeFeedItemContent($entry->summary));
}
if (isset($entry->id)) {
$feedItem->setId($entry->id);
}
$result[] = $feedItem->setPublished(Timestamp::create(strtotime((string) $entry->updated)))->setLink((string) $entry->link);
}
return $result;
}
public function makeItems(\SimpleXMLElement $xmlFeed)
{
$xmlFeed->registerXPathNamespace(YandexRssFeedFormat::YANDEX_NAMESPACE_PREFIX, YandexRssFeedFormat::YANDEX_NAMESPACE_URI);
$fullTextList = $xmlFeed->xpath('//' . YandexRssFeedFormat::YANDEX_NAMESPACE_PREFIX . ':full-text');
$result = array();
$i = 0;
if (isset($xmlFeed->channel->item)) {
foreach ($xmlFeed->channel->item as $item) {
$feedItem = YandexRssFeedItem::create((string) $item->title)->setContent(FeedItemContent::create()->setBody((string) $item->description))->setPublished(Timestamp::create(strtotime((string) $item->pubDate)))->setFullText((string) $fullTextList[$i++])->setLink((string) $item->link);
if (isset($item->guid)) {
$feedItem->setId($item->guid);
}
if (isset($item->category)) {
$feedItem->setCategory((string) $item->category);
}
$result[] = $feedItem;
}
}
return $result;
}
/**
* @return Message
**/
public function receive($uTimeout = null)
{
if (!$this->queue) {
throw new WrongStateException('you must set the queue first');
}
if ($uTimeout && $this->getStream()->isEof()) {
usleep($uTimeout);
}
$string = $this->getStream()->readString();
if (!$string && $this->getStream()->isEof()) {
return null;
}
$this->getQueue()->setOffset($this->getStream()->getOffset());
$string = rtrim($string, PHP_EOL);
$chunks = preg_split("/\t/", $string, 2);
$time = isset($chunks[0]) ? $chunks[0] : null;
$text = isset($chunks[1]) ? $chunks[1] : null;
Assert::isNotNull($time);
$result = TextMessage::create(Timestamp::create($time))->setText($text);
return $result;
}
/**
* @return Timestamp
**/
public function toTimestamp()
{
return Timestamp::create($this->toStamp());
}
/**
* @return Timestamp
**/
public static function alignToSeconds(Timestamp $stamp, $seconds)
{
$rawStamp = $stamp->toStamp();
$align = floor($rawStamp / $seconds);
return Timestamp::create($align * $seconds);
}
