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sources/lib/search.php
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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @copyright 2012 Frank Karlitschek frank@owncloud.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/**
* provides an interface to all search providers
*/
class OC_Search{
static private $providers=array();
static private $registeredProviders=array();
/**
* remove all registered search providers
*/
public static function clearProviders() {
self::$providers=array();
self::$registeredProviders=array();
}
/**
* register a new search provider to be used
* @param string $provider class name of a OC_Search_Provider
*/
public static function registerProvider($class, $options=array()) {
self::$registeredProviders[]=array('class'=>$class, 'options'=>$options);
}
/**
* search all provider for $query
* @param string query
* @return array An array of OC_Search_Result's
*/
public static function search($query) {
self::initProviders();
$results=array();
foreach(self::$providers as $provider) {
$results=array_merge($results, $provider->search($query));
}
return $results;
}
/**
* remove an existing search provider
* @param string $provider class name of a OC_Search_Provider
*/
public static function removeProvider($provider) {
self::$registeredProviders = array_filter(
self::$registeredProviders,
function ($element) use ($provider) {
return ($element['class'] != $provider);
}
);
// force regeneration of providers on next search
self::$providers=array();
}
/**
* create instances of all the registered search providers
*/
private static function initProviders() {
if(count(self::$providers)>0) {
return;
}
foreach(self::$registeredProviders as $provider) {
$class=$provider['class'];
$options=$provider['options'];
self::$providers[]=new $class($options);
}
}
}
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