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<?php |
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declare(strict_types = 1); |
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namespace drupol\phpvfs\Node; |
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use drupol\phpvfs\Utils\Path; |
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class File extends Vfs implements FileInterface |
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{ |
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/** |
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* File constructor. |
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* |
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* @param array $attributes |
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*/ |
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public function __construct( |
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array $attributes = [] |
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) { |
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$attributes += [ |
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'content' => '', |
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'position' => 0, |
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]; |
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parent::__construct($attributes, null); |
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} |
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/** |
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* @return bool |
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*/ |
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public function atEof() |
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{ |
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return $this->getPosition() >= \strlen($this->getAttribute('content')); |
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} |
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/** |
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* @param string $id |
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* @param string $content |
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* @param array $attributes |
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* |
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* @throws \Exception |
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* |
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* @return \drupol\phpvfs\Node\File |
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*/ |
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public static function create(string $id, string $content = '', array $attributes = []) |
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{ |
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$path = Path::fromString($id); |
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$dirname = $path->dirname(); |
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$basedir = null; |
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if (!empty($dirname)) { |
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$basedir = Directory::create($dirname); |
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} |
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$attributes = [ |
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'id' => $path->basename(), |
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'content' => $content, |
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] + $attributes; |
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$file = new self($attributes); |
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if (null !== $basedir) { |
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$basedir->add($file); |
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} |
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return $file; |
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} |
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/** |
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* @return int |
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*/ |
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public function getPosition(): int |
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{ |
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return (int) $this->getAttribute('position'); |
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} |
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/** |
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* @param int $bytes |
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* |
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* @return string |
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*/ |
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public function read(int $bytes): string |
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{ |
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$data = \substr( |
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$this->getAttribute('content'), |
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$this->getPosition(), |
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$bytes |
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); |
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$this->offsetPosition($bytes); |
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return $data; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function seekToEnd() |
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{ |
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$this->setPosition( |
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\strlen($this->getAttribute('content')) |
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); |
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} |
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/** |
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* @param int $position |
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* |
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* @return $this |
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*/ |
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public function setPosition(int $position): FileInterface |
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{ |
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$this->setAttribute('position', $position); |
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return $this; |
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} |
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/** |
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* @return int |
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*/ |
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public function size(): int |
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{ |
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return \strlen($this->getAttribute('content')); |
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} |
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/** |
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* @param string $data |
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* |
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* @return int |
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*/ |
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public function write(string $data): int |
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{ |
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$content = $this->getAttribute('content'); |
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$content = \substr($content, 0, $this->getPosition()); |
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$content .= $data; |
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$this->setAttribute('content', $content); |
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$written = \strlen($data); |
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$this->offsetPosition($written); |
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return $written; |
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} |
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/** |
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* @param int $offset |
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* |
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* @return int |
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*/ |
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1 |
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protected function offsetPosition($offset): int |
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{ |
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$contentSize = $this->size(); |
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$newPosition = $this->getPosition() + $offset; |
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$newPosition = $contentSize < $newPosition ? |
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$contentSize : |
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$newPosition; |
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$this->setPosition($newPosition); |
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return $newPosition; |
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} |
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} |
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drupol /
phpvfs
