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<?php
/**
* This file is part of vfsStream.
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @package org\bovigo\vfs
*/
namespace org\bovigo\vfs;
/**
* Directory container.
*
* @api
*/
class vfsStreamDirectory extends vfsStreamAbstractContent implements vfsStreamContainer
{
/**
* list of directory children
*
* @type vfsStreamContent[]
*/
protected $children = array();
/**
* constructor
*
* @param string $name
* @param int $permissions optional
* @throws vfsStreamException
*/
public function __construct($name, $permissions = null)
{
if (strstr($name, '/') !== false) {
throw new vfsStreamException('Directory name can not contain /.');
}
$this->type = vfsStreamContent::TYPE_DIR;
parent::__construct($name, $permissions);
}
/**
* returns default permissions for concrete implementation
*
* @return int
* @since 0.8.0
*/
protected function getDefaultPermissions()
{
return 0777;
}
/**
* returns size of directory
*
* The size of a directory is always 0 bytes. To calculate the summarized
* size of all children in the directory use sizeSummarized().
*
* @return int
*/
public function size()
{
return 0;
}
/**
* returns summarized size of directory and its children
*
* @return int
*/
public function sizeSummarized()
{
$size = 0;
foreach ($this->children as $child) {
if ($child->getType() === vfsStreamContent::TYPE_DIR) {
$size += $child->sizeSummarized();
} else {
$size += $child->size();
}
}
return $size;
}
/**
* renames the content
*
* @param string $newName
* @throws vfsStreamException
*/
public function rename($newName)
{
if (strstr($newName, '/') !== false) {
throw new vfsStreamException('Directory name can not contain /.');
}
parent::rename($newName);
}
/**
* sets parent path
*
* @param string $parentPath
* @internal only to be set by parent
* @since 1.2.0
*/
public function setParentPath($parentPath)
{
parent::setParentPath($parentPath);
foreach ($this->children as $child) {
$child->setParentPath($this->path());
}
}
/**
* adds child to the directory
*
* @param vfsStreamContent $child
*/
public function addChild(vfsStreamContent $child)
{
$child->setParentPath($this->path());
$this->children[$child->getName()] = $child;
$this->updateModifications();
}
/**
* removes child from the directory
*
* @param string $name
* @return bool
*/
public function removeChild($name)
{
foreach ($this->children as $key => $child) {
if ($child->appliesTo($name)) {
$child->setParentPath(null);
unset($this->children[$key]);
$this->updateModifications();
return true;
}
}
return false;
}
/**
* updates internal timestamps
*/
protected function updateModifications()
{
$time = time();
$this->lastAttributeModified = $time;
$this->lastModified = $time;
}
/**
* checks whether the container contains a child with the given name
*
* @param string $name
* @return bool
*/
public function hasChild($name)
{
return ($this->getChild($name) !== null);
}
/**
* returns the child with the given name
*
* @param string $name
* @return vfsStreamContent
*/
public function getChild($name)
{
$childName = $this->getRealChildName($name);
foreach ($this->children as $child) {
if ($child->getName() === $childName) {
return $child;
}
if ($child->appliesTo($childName) === true && $child->hasChild($childName) === true) {
return $child->getChild($childName);
}
}
return null;
}
/**
* helper method to detect the real child name
*
* @param string $name
* @return string
*/
protected function getRealChildName($name)
{
if ($this->appliesTo($name) === true) {
return self::getChildName($name, $this->name);
}
return $name;
}
/**
* helper method to calculate the child name
*
* @param string $name
* @param string $ownName
* @return string
*/
protected static function getChildName($name, $ownName)
{
if ($name === $ownName) {
return $name;
}
return substr($name, strlen($ownName) + 1);
}
/**
* checks whether directory contains any children
*
* @return bool
* @since 0.10.0
*/
public function hasChildren()
{
return (count($this->children) > 0);
}
/**
* returns a list of children for this directory
*
* @return vfsStreamContent[]
*/
public function getChildren()
{
return array_values($this->children);
}
/**
* returns iterator for the children
*
* @return vfsStreamContainerIterator
*/
public function getIterator()
{
return new vfsStreamContainerIterator($this->children);
}
/**
* checks whether dir is a dot dir
*
* @return bool
*/
public function isDot()
{
if ('.' === $this->name || '..' === $this->name) {
return true;
}
return false;
}
}