nextcloud/lib/public/Search/Provider.php

92 lines
2.4 KiB
PHP

<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Andrew Brown <andrew@casabrown.com>
* @author Bart Visscher <bartv@thisnet.nl>
* @author Jakob Sack <mail@jakobsack.de>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Morris Jobke <hey@morrisjobke.de>
*
* @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 OCP\Search;
/**
* Provides a template for search functionality throughout ownCloud;
* @since 7.0.0
*/
abstract class Provider {
/**
* @since 8.0.0
*/
const OPTION_APPS = 'apps';
/**
* List of options
* @var array
* @since 7.0.0
*/
protected $options;
/**
* Constructor
* @param array $options as key => value
* @since 7.0.0 - default value for $options was added in 8.0.0
*/
public function __construct($options = array()) {
$this->options = $options;
}
/**
* get a value from the options array or null
* @param string $key
* @return mixed
* @since 8.0.0
*/
public function getOption($key) {
if (is_array($this->options) && isset($this->options[$key])) {
return $this->options[$key];
} else {
return null;
}
}
/**
* checks if the given apps and the apps this provider has results for intersect
* returns true if the given array is empty (all apps)
* or if this provider does not have a list of apps it provides results for (legacy search providers)
* or if the two above arrays have elements in common (intersect)
* @param string[] $apps
* @return bool
* @since 8.0.0
*/
public function providesResultsFor(array $apps = array()) {
$forApps = $this->getOption(self::OPTION_APPS);
return empty($apps) || empty($forApps) || array_intersect($forApps, $apps);
}
/**
* Search for $query
* @param string $query
* @return array An array of OCP\Search\Result's
* @since 7.0.0
*/
abstract public function search($query);
}