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<?php |
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namespace Alchemy\Zippy\Adapter\Pecl\Zip; |
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use Alchemy\Zippy\Package\PackagedResource; |
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use Alchemy\Zippy\Package\PackagedResourceIterator; |
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use Alchemy\Zippy\Resource\Reader\RawStreamReader; |
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use Alchemy\Zippy\Resource\ResourceReader; |
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use Alchemy\Zippy\Resource\ResourceReaderResolver; |
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use Alchemy\Zippy\Resource\ResourceUri; |
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class ZipResourceIterator implements PackagedResourceIterator, ResourceReaderResolver |
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{ |
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/** |
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* @var \ZipArchive |
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*/ |
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private $archive; |
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/** |
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* @var int |
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*/ |
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private $current = 0; |
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/** |
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* @var PackagedResource |
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*/ |
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private $parent; |
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/** |
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* @param PackagedResource $parent |
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*/ |
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public function __construct(PackagedResource $parent) { |
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$this->parent = $parent; |
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$this->archive = new \ZipArchive(); |
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$this->archive->open($this->parent->getAbsoluteUri()->getResource()); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Move forward to next element |
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* @link http://php.net/manual/en/iterator.next.php |
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* @return void Any returned value is ignored. |
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*/ |
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public function next() |
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{ |
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$this->current++; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Return the key of the current element |
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* @link http://php.net/manual/en/iterator.key.php |
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* @return mixed scalar on success, or null on failure. |
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*/ |
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public function key() |
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{ |
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return $this->archive->getNameIndex($this->current); |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Checks if current position is valid |
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* @link http://php.net/manual/en/iterator.valid.php |
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* @return boolean The return value will be casted to boolean and then evaluated. |
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* Returns true on success or false on failure. |
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*/ |
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public function valid() |
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{ |
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return $this->current < $this->archive->numFiles; |
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} |
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/** |
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* (PHP 5 >= 5.0.0)<br/> |
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* Rewind the Iterator to the first element |
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* @link http://php.net/manual/en/iterator.rewind.php |
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* @return void Any returned value is ignored. |
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*/ |
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public function rewind() |
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{ |
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$this->current = 0; |
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} |
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/** |
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* @return PackagedResource |
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*/ |
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public function current() |
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{ |
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$file = $this->key(); |
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return new PackagedResource( |
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ResourceUri::fromString($file), |
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$this, |
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$this->parent->getWriterResolver(), |
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$this->parent |
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); |
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} |
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/** |
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* Resolves a reader for the given resource URI. |
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* |
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* @param ResourceUri $resource |
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* @return ResourceReader |
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*/ |
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public function resolveReader(ResourceUri $resource) |
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{ |
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return new RawStreamReader($this->archive->getStream($resource->getResource())); |
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} |
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} |
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aztech-dev /
Zippy
