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<?php |
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/* |
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* This file is part of the php-vfs package. |
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* |
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* (c) Michael Donat <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace VirtualFileSystem\Structure; |
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use VirtualFileSystem\Exception\FileExistsException; |
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use VirtualFileSystem\Exception\NotFoundException; |
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/** |
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* FileSystem Directory representation. |
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* |
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* @author Michael Donat <[email protected]> |
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* @package php-vfs |
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*/ |
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class Directory extends Node |
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{ |
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/** |
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* @see http://man7.org/linux/man-pages/man2/lstat.2.html |
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*/ |
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const S_IFTYPE = 0040000; |
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protected $children = array(); |
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/** |
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* Class constructor. |
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* |
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* @param string $basename |
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* |
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* @throws \InvalidArgumentException |
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*/ |
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public function __construct($basename) |
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{ |
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if ($basename == Root::BASENAME) { |
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throw new \InvalidArgumentException('Creating directories as root is prohibited'); |
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} |
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parent::__construct($basename); |
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} |
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/** |
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* Adds child Directory. |
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* |
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* @param Directory $directory |
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*/ |
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public function addDirectory(Directory $directory) |
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{ |
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$this->addNode($directory); |
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} |
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/** |
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* Adds child File. |
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* |
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* @param File $file |
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*/ |
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public function addFile(File $file) |
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{ |
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$this->addNode($file); |
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} |
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/** |
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* Adds child Link. |
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* |
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* @param Link $link |
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*/ |
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public function addLink(Link $link) |
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{ |
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$this->addNode($link); |
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} |
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/** |
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* Adds child Node. |
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* |
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* @param Node $node |
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* |
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* @throws FileExistsException |
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*/ |
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public function addNode(Node $node) |
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{ |
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if (array_key_exists($node->basename(), $this->children)) { |
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throw new FileExistsException(sprintf('%s already exists', $node->basename())); |
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} |
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$this->children[$node->basename()] = $node; |
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$node->setParent($this); |
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} |
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/** |
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* Returns size as the number of child elements. |
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* |
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* @return int |
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*/ |
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public function size() |
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{ |
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return count($this->children); |
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} |
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/** |
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* Returns child Node existing at path. |
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* |
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* @param string $path |
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* |
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* @return Node |
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* |
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* @throws \VirtualFileSystem\Exception\NotFoundException |
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*/ |
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public function childAt($path) |
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{ |
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if (!array_key_exists($path, $this->children)) { |
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throw new NotFoundException(sprintf('Could not find child %s in %s', $path, $this->path())); |
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} |
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return $this->children[$path]; |
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} |
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/** |
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* Removes child Node |
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* |
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* @param string $basename |
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*/ |
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public function remove($basename) |
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{ |
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unset($this->children[$basename]); |
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} |
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/** |
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* Returns children |
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* |
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* @return array |
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*/ |
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public function children() |
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{ |
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return $this->children; |
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} |
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} |
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michael-donat /
php-vfs
