124 lines
3.5 KiB
PHP
124 lines
3.5 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @copyright 2012 Frank Karlitschek frank@owncloud.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC;
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use OCP\Search\PagedProvider;
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use OCP\Search\Provider;
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use OCP\ISearch;
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/**
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* Provide an interface to all search providers
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*/
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class Search implements ISearch {
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private $providers = array();
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private $registeredProviders = array();
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/**
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* Search all providers for $query
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* @param string $query
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* @param string[] $inApps optionally limit results to the given apps
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* @return array An array of OC\Search\Result's
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*/
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public function search($query, array $inApps = array()) {
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return $this->searchPaged($query, $inApps, 0, 0);
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}
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/**
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* Search all providers for $query
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* @param string $query
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* @param int $page
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* @param int $size, 0 = all
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* @return array An array of OC\Search\Result's
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*/
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public function searchPaged($query, $page = 0, $size = 30) {
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$this->initProviders();
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$results = array();
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foreach($this->providers as $provider) {
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/** @var $provider Provider */
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if ( ! $provider->providesResultsFor($inApps) ) {
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continue;
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}
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if ($provider instanceof PagedProvider) {
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$results = array_merge($results, $provider->searchPaged($query, $page, $size));
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} else if ($provider instanceof Provider) {
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$providerResults = $provider->search($query);
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if ($size > 0) {
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$slicedResults = array_slice($providerResults, $page * $size, $size);
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$results = array_merge($results, $slicedResults);
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} else {
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$results = array_merge($results, $providerResults);
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}
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} else {
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\OC::$server->getLogger()->warning('Ignoring Unknown search provider', array('provider' => $provider));
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}
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}
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return $results;
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}
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/**
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* Remove all registered search providers
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*/
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public function clearProviders() {
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$this->providers = array();
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$this->registeredProviders = array();
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}
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/**
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* Remove one existing search provider
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* @param string $provider class name of a OC\Search\Provider
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*/
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public function removeProvider($provider) {
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$this->registeredProviders = array_filter(
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$this->registeredProviders,
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function ($element) use ($provider) {
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return ($element['class'] != $provider);
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}
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);
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// force regeneration of providers on next search
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$this->providers = array();
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}
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/**
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* Register a new search provider to search with
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* @param string $class class name of a OC\Search\Provider
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* @param array $options optional
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*/
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public function registerProvider($class, array $options = array()) {
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$this->registeredProviders[] = array('class' => $class, 'options' => $options);
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}
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/**
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* Create instances of all the registered search providers
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*/
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private function initProviders() {
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if( ! empty($this->providers) ) {
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return;
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}
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foreach($this->registeredProviders as $provider) {
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$class = $provider['class'];
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$options = $provider['options'];
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$this->providers[] = new $class($options);
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}
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}
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}
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