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<?php |
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namespace AmaTeam\TreeAccess; |
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use AmaTeam\TreeAccess\API\AccessorInterface; |
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use AmaTeam\TreeAccess\API\ActiveNodeFactoryInterface; |
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use AmaTeam\TreeAccess\API\Exception\IllegalTargetException; |
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use AmaTeam\TreeAccess\API\NodeInterface; |
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use AmaTeam\TreeAccess\API\TypeAccessorInterface; |
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use AmaTeam\TreeAccess\Locator\Context; |
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use AmaTeam\TreeAccess\Type\Registry; |
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class Accessor implements AccessorInterface, ActiveNodeFactoryInterface |
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{ |
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/** |
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* @var Locator |
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*/ |
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private $locator; |
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/** |
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* @var Registry |
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*/ |
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private $registry; |
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/** |
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* @param Registry $registry |
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*/ |
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public function __construct(Registry $registry) |
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{ |
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$this->registry = $registry; |
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$this->locator = new Locator($registry); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getNode(&$root, $path) |
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{ |
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return $this->traverse($root, $path, new Context(false, false)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function findNode(&$root, $path) |
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{ |
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return $this->traverse($root, $path, new Context(true, true)); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function exists($root, $path) |
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{ |
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$normalizedPath = Paths::normalize($path); |
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return $this->findNode($root, $normalizedPath) !== null; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isReadable($root, $path) |
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{ |
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return $this->getNode($root, $path)->isReadable(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isWritable($root, $path) |
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{ |
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return $this->getNode($root, $path)->isWritable(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function isEnumerable($root, $path) |
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{ |
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return $this->getNode($root, $path)->isEnumerable(); |
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} |
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/** |
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* @param mixed $root |
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* @param string|string[] $path |
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* @param Context $context |
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* @return NodeInterface|null |
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*/ |
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private function traverse(&$root, $path, Context $context) |
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{ |
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$node = new Node([], $root); |
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return $this->locator->locate($node, Paths::normalize($path), $context); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function read(&$root, $path) |
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{ |
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$path = Paths::normalize($path); |
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$node = $this->getNode($root, $path); |
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return $node->getValue(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function enumerate(&$root, $path) |
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{ |
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$normalizedPath = Paths::normalize($path); |
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$parent = $this->getNode($root, $normalizedPath); |
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$accessor = $this->getAccessor($parent->getValue(), $normalizedPath); |
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$target = []; |
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foreach ($accessor->enumerate($parent->getValue()) as $name => $node) { |
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$nodePath = array_merge($normalizedPath, $node->getPath()); |
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$target[$name] = Node::withPath($node, $nodePath); |
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} |
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return $target; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function write(&$root, $path, $value) |
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{ |
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$normalizedPath = Paths::normalize($path); |
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if (empty($normalizedPath)) { |
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$root = $value; |
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return new Node([], $root); |
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} |
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$key = $normalizedPath[sizeof($normalizedPath) - 1]; |
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$parentPath = array_slice($normalizedPath, 0, -1); |
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$parent = $this->getNode($root, $parentPath); |
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$accessor = $this->getAccessor($parent->getValue(), $parentPath); |
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$parentValue = &$parent->getValue(); |
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$node = $accessor->write($parentValue, $key, $value); |
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return Node::withPath($node, $normalizedPath); |
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} |
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/** |
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* @param $value |
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* @param array $path |
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* |
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* @return TypeAccessorInterface |
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* |
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* @throws IllegalTargetException |
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*/ |
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private function getAccessor($value, array $path) |
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{ |
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$accessor = $this->registry->getAccessor(gettype($value)); |
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if (!$accessor) { |
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throw new IllegalTargetException($path); |
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} |
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return $accessor; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function wrap(&$structure) |
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{ |
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return new ActiveNode($this, [], $structure); |
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} |
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} |
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ama-team /
php-tree-access
