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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Daniel Jagszent <daniel@jagszent.de>
* @author Joas Schilling <coding@schilljs.com>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin Appelman <robin@icewind.nl>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Vincent Petry <pvince81@owncloud.com>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\Files\Cache\Wrapper;
use OC\Files\Cache\Cache;
use OCP\Files\Cache\ICacheEntry;
use OCP\Files\Cache\ICache;
use OCP\Files\Search\ISearchQuery;
class CacheWrapper extends Cache {
/**
* @var \OCP\Files\Cache\ICache
*/
protected $cache;
/**
* @param \OCP\Files\Cache\ICache $cache
*/
public function __construct($cache) {
$this->cache = $cache;
}
protected function getCache() {
return $this->cache;
}
/**
* Make it easy for wrappers to modify every returned cache entry
*
* @param ICacheEntry $entry
* @return ICacheEntry
*/
protected function formatCacheEntry($entry) {
return $entry;
}
/**
* get the stored metadata of a file or folder
*
* @param string|int $file
* @return ICacheEntry|false
*/
public function get($file) {
$result = $this->getCache()->get($file);
if ($result) {
$result = $this->formatCacheEntry($result);
}
return $result;
}
/**
* get the metadata of all files stored in $folder
*
* @param string $folder
* @return ICacheEntry[]
*/
public function getFolderContents($folder) {
// can't do a simple $this->getCache()->.... call here since getFolderContentsById needs to be called on this
// and not the wrapped cache
$fileId = $this->getId($folder);
return $this->getFolderContentsById($fileId);
}
/**
* get the metadata of all files stored in $folder
*
* @param int $fileId the file id of the folder
* @return array
*/
public function getFolderContentsById($fileId) {
$results = $this->getCache()->getFolderContentsById($fileId);
return array_map(array($this, 'formatCacheEntry'), $results);
}
/**
* insert or update meta data for a file or folder
*
* @param string $file
* @param array $data
*
* @return int file id
* @throws \RuntimeException
*/
public function put($file, array $data) {
if (($id = $this->getId($file)) > -1) {
$this->update($id, $data);
return $id;
} else {
return $this->insert($file, $data);
}
}
/**
* insert meta data for a new file or folder
*
* @param string $file
* @param array $data
*
* @return int file id
* @throws \RuntimeException
*/
public function insert($file, array $data) {
return $this->getCache()->insert($file, $data);
}
/**
* update the metadata in the cache
*
* @param int $id
* @param array $data
*/
public function update($id, array $data) {
$this->getCache()->update($id, $data);
}
/**
* get the file id for a file
*
* @param string $file
* @return int
*/
public function getId($file) {
return $this->getCache()->getId($file);
}
/**
* get the id of the parent folder of a file
*
* @param string $file
* @return int
*/
public function getParentId($file) {
return $this->getCache()->getParentId($file);
}
/**
* check if a file is available in the cache
*
* @param string $file
* @return bool
*/
public function inCache($file) {
return $this->getCache()->inCache($file);
}
/**
* remove a file or folder from the cache
*
* @param string $file
*/
public function remove($file) {
$this->getCache()->remove($file);
}
/**
* Move a file or folder in the cache
*
* @param string $source
* @param string $target
*/
public function move($source, $target) {
$this->getCache()->move($source, $target);
}
public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
$this->getCache()->moveFromCache($sourceCache, $sourcePath, $targetPath);
}
/**
* remove all entries for files that are stored on the storage from the cache
*/
public function clear() {
$this->getCache()->clear();
}
/**
* @param string $file
*
* @return int Cache::NOT_FOUND, Cache::PARTIAL, Cache::SHALLOW or Cache::COMPLETE
*/
public function getStatus($file) {
return $this->getCache()->getStatus($file);
}
/**
* search for files matching $pattern
*
* @param string $pattern
* @return ICacheEntry[] an array of file data
*/
public function search($pattern) {
$results = $this->getCache()->search($pattern);
return array_map(array($this, 'formatCacheEntry'), $results);
}
/**
* search for files by mimetype
*
* @param string $mimetype
* @return ICacheEntry[]
*/
public function searchByMime($mimetype) {
$results = $this->getCache()->searchByMime($mimetype);
return array_map(array($this, 'formatCacheEntry'), $results);
}
public function searchQuery(ISearchQuery $query) {
$results = $this->getCache()->searchQuery($query);
return array_map(array($this, 'formatCacheEntry'), $results);
}
/**
* search for files by tag
*
* @param string|int $tag name or tag id
* @param string $userId owner of the tags
* @return ICacheEntry[] file data
*/
public function searchByTag($tag, $userId) {
$results = $this->getCache()->searchByTag($tag, $userId);
return array_map(array($this, 'formatCacheEntry'), $results);
}
/**
* update the folder size and the size of all parent folders
*
* @param string|boolean $path
* @param array $data (optional) meta data of the folder
*/
public function correctFolderSize($path, $data = null) {
if ($this->getCache() instanceof Cache) {
$this->getCache()->correctFolderSize($path, $data);
}
}
/**
* get the size of a folder and set it in the cache
*
* @param string $path
* @param array $entry (optional) meta data of the folder
* @return int
*/
public function calculateFolderSize($path, $entry = null) {
if ($this->getCache() instanceof Cache) {
return $this->getCache()->calculateFolderSize($path, $entry);
} else {
return 0;
}
}
/**
* get all file ids on the files on the storage
*
* @return int[]
*/
public function getAll() {
return $this->getCache()->getAll();
}
/**
* find a folder in the cache which has not been fully scanned
*
* If multiple incomplete folders are in the cache, the one with the highest id will be returned,
* use the one with the highest id gives the best result with the background scanner, since that is most
* likely the folder where we stopped scanning previously
*
* @return string|bool the path of the folder or false when no folder matched
*/
public function getIncomplete() {
return $this->getCache()->getIncomplete();
}
/**
* get the path of a file on this storage by it's id
*
* @param int $id
* @return string|null
*/
public function getPathById($id) {
return $this->getCache()->getPathById($id);
}
/**
* Returns the numeric storage id
*
* @return int
*/
public function getNumericStorageId() {
return $this->getCache()->getNumericStorageId();
}
/**
* get the storage id of the storage for a file and the internal path of the file
* unlike getPathById this does not limit the search to files on this storage and
* instead does a global search in the cache table
*
* @param int $id
* @return array first element holding the storage id, second the path
*/
static public function getById($id) {
return parent::getById($id);
}
}