/**
* Get the instance of the filesystem.
* @return MongoFileSystem
*/
public static function getInstance()
{
if (self::$s_instance === null) {
self::$s_instance = new MongoFileSystem();
}
return self::$s_instance;
}
function main()
{
$filesystem = MongoFileSystem::getInstance();
$rootFolder = new MongoFolder("/");
$filesystem->createRootFolder($rootFolder);
$myNewFolder = new MongoFolder("user1");
$filesystem->createFolder($myNewFolder, $rootFolder);
$filepath = __DIR__ . '/merkel-tree.jpg';
$myFile = new MongoFile($filepath);
# At this point the file is saved into the storage system.
$filesystem->createFile($myFile, $rootFolder);
$myNewFolder->setPath("/a/really/long/path/of/folders/that/dont/exist");
$myNewFolder->setName("myNewName");
# Get the parent, this should be called "dont"
print "my new folder after setting name: " . print_r($myNewFolder, true) . PHP_EOL;
$parentFolder = $myNewFolder->getParentFolder();
$parentFolderName = $parentFolder->getName();
if ($parentFolderName !== "exist") {
die("Parent folder should be called exist");
}
if ($filesystem->getDirectorySize($parentFolder) != 1) {
die("The 'dont' folder should only contain one folder so size should be 1");
}
$filesystem->renameFolder($parentFolder, "changedName");
if ($myNewFolder->getPath() !== "/a/really/long/path/of/folders/that/dont/changedName") {
$msg = "checking folder path after rename failed" . PHP_EOL . "expected: /a/really/long/path/of/folders/that/dont/changedName" . PHP_EOL . "recieved: " . $myNewFolder->getPath();
die($msg);
}
$filesystem->deleteFolder($myNewFolder);
if ($filesystem->getDirectorySize($parentFolder) != 0) {
die("The 'dont' folder should not contain anything");
}
print "Completed without failing!" . PHP_EOL;
}
/**
* Set the path to this file/folder. I am assuming that this does not include the
* name of the file/folder but am unsure. This means that if you want to rename a file
* or folder you need to use the setName() method.
* Setting the path should result in parent folders being created where necessary. (mkdir -p)
* Changing the path of a folder act like updating a pointer rather than
* resulting in having to send queries to update all of the sub-items.
*
* @param string $path - and absolute path such as /path/to/folder/or/file.php
*
* @return $this
*/
public function setPath($path)
{
if ($path !== "" && $path !== "/") {
$folderNames = explode("/", $path);
array_shift($folderNames);
$parentFolder = MongoFileSystem::loadRoot();
foreach ($folderNames as $folderName) {
$subFolders = $parentFolder->getSubFolders();
$indexedSubFolders = array();
foreach ($subFolders as $index => $subFolder) {
$indexedSubFolders[$subFolder->getName()] = $subFolder;
}
if (isset($indexedSubFolders[$subFolder])) {
$parentFolder = $indexedSubFolders[$subFolder];
} else {
# Need to create the subfolders from here.
$newFolder = new MongoFolder($folderName);
$parentFolder = MongoFileSystem::getInstance()->createFolder($newFolder, $parentFolder);
}
}
# The last "parent folder" from the loop should be the last in the path which we want to make
# our parent
if ($parentFolder === null) {
throw new Exception("error set path resulted in a null parent folder");
}
print PHP_EOL;
print "SETPATH {$path}: setting parent folder" . PHP_EOL;
$this->setParentFolder($parentFolder);
$this->updateField('path', $path);
} else {
}
return $this;
}