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<?php |
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namespace EventStore\StreamFeed; |
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use ArrayIterator; |
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use EventStore\EventStoreInterface; |
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final class StreamFeedIterator implements \Iterator |
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{ |
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private $eventStore; |
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private $streamName; |
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private $feed; |
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private $innerIterator; |
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private $startingRelation; |
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private $navigationRelation; |
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private $arraySortingFunction; |
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private $rewinded; |
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private $pagesLeft; |
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private function __construct( |
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EventStoreInterface $eventStore, |
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$streamName, |
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LinkRelation $startingRelation, |
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LinkRelation $navigationRelation, |
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callable $arraySortingFunction, |
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$limit |
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) |
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{ |
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$this->eventStore = $eventStore; |
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$this->streamName = $streamName; |
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$this->startingRelation = $startingRelation; |
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$this->navigationRelation = $navigationRelation; |
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$this->arraySortingFunction = $arraySortingFunction; |
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$this->pagesLeft = $limit; |
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} |
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public static function forward(EventStoreInterface $eventStore, $streamName, $limit = PHP_INT_MAX) |
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{ |
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return new self( |
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$eventStore, |
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$streamName, |
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LinkRelation::LAST(), |
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LinkRelation::PREVIOUS(), |
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'array_reverse', |
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$limit |
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); |
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} |
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public static function backward(EventStoreInterface $eventStore, $streamName, $limit = PHP_INT_MAX) |
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{ |
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return new self( |
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$eventStore, |
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$streamName, |
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LinkRelation::FIRST(), |
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LinkRelation::NEXT(), |
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function (array $array) { return $array; }, |
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$limit |
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); |
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} |
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public function current() |
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{ |
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return $this->innerIterator->current(); |
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} |
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public function next() |
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{ |
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$this->rewinded = false; |
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$this->innerIterator->next(); |
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if (!$this->innerIterator->valid() && !$this->limitReached()) { |
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$this->feed = $this |
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->eventStore |
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->navigateStreamFeed( |
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$this->feed, |
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$this->navigationRelation |
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) |
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; |
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$this->createInnerIterator(); |
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} |
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} |
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public function key() |
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{ |
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return $this->innerIterator->current()->getEntry()->getTitle(); |
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} |
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public function valid() |
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{ |
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return $this->innerIterator->valid(); |
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} |
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public function rewind() |
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{ |
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if ($this->rewinded) { |
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return; |
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} |
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$this->feed = $this->eventStore->openStreamFeed($this->streamName); |
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if ($this->feed->hasLink($this->startingRelation)) { |
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$this->feed = $this |
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->eventStore |
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->navigateStreamFeed( |
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$this->feed, |
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$this->startingRelation |
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) |
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; |
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} |
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$this->createInnerIterator(); |
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$this->rewinded = true; |
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} |
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public function nextUrl() |
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{ |
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return $this->feed->getLinkUrl($this->navigationRelation); |
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} |
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private function createInnerIterator() |
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{ |
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if (null !== $this->feed) { |
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$entries = $this->feed->getEntries(); |
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} else { |
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$entries = []; |
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} |
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if (empty($entries)) { |
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$this->innerIterator = new ArrayIterator([]); |
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return; |
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} |
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$entries = call_user_func( |
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$this->arraySortingFunction, |
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$entries |
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); |
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$urls = array_map( |
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function ($entry) { |
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return $entry->getEventUrl(); |
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}, |
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$entries |
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); |
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$this->innerIterator = new ArrayIterator( |
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array_map( |
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function ($entry, $event) { |
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return new EntryWithEvent( |
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$entry, |
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$event |
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); |
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}, |
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$entries, |
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$this->eventStore->readEventBatch($urls) |
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) |
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); |
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} |
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private function limitReached() |
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{ |
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return --$this->pagesLeft <= 0; |
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} |
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} |
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dbellettini /
php-eventstore-client
This check marks calls to methods that do not seem to exist on an object.
This is most likely the result of a method being renamed without all references to it being renamed likewise.