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<?php |
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namespace Spatie\Crawler; |
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use Iterator; |
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use ArrayAccess; |
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use Psr\Http\Message\ResponseInterface; |
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use GuzzleHttp\Exception\RequestException; |
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class ObserverCollection implements ArrayAccess, Iterator |
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{ |
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/** @var \Spatie\Crawler\CrawlObserver[] */ |
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protected $observers; |
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/** @var int */ |
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protected $position; |
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public function __construct(array $observers = []) |
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{ |
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$this->observers = $observers; |
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$this->position = 0; |
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} |
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public function addObserver(CrawlObserver $observer) |
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{ |
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$this->observers[] = $observer; |
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} |
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public function crawled(CrawlUrl $crawlUrl, ResponseInterface $response) |
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{ |
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foreach ($this->observers as $crawlObserver) { |
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$crawlObserver->crawled( |
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$crawlUrl->url, |
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$response, |
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$crawlUrl->foundOnUrl |
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); |
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} |
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} |
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public function crawlFailed(CrawlUrl $crawlUrl, RequestException $exception) |
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{ |
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foreach ($this->observers as $crawlObserver) { |
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$crawlObserver->crawlFailed( |
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$crawlUrl->url, |
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$exception, |
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$crawlUrl->foundOnUrl |
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); |
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} |
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} |
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public function current() |
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{ |
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return $this->observers[$this->position]; |
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} |
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public function offsetGet($offset) |
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{ |
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return isset($this->observers[$offset]) ? $this->observers[$offset] : null; |
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} |
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public function offsetSet($offset, $value) |
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{ |
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if (is_null($offset)) { |
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$this->observers[] = $value; |
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} else { |
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$this->observers[$offset] = $value; |
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} |
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} |
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public function offsetExists($offset) |
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{ |
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return isset($this->observers[$offset]); |
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} |
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public function offsetUnset($offset) |
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{ |
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unset($this->observers[$offset]); |
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} |
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public function next() |
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{ |
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$this->position++; |
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} |
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public function key() |
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{ |
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return $this->position; |
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} |
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public function valid() |
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{ |
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return isset($this->observers[$this->position]); |
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} |
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public function rewind() |
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{ |
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$this->position = 0; |
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} |
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} |
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spatie /
crawler
