mirror of https://github.com/nextcloud/server
121 lines
3.6 KiB
PHP
121 lines
3.6 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Andrew Brown <andrew@casabrown.com>
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Robin Appelman <robin@icewind.nl>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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*
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* @license AGPL-3.0
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*
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* This code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License, version 3,
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* as published by the Free Software Foundation.
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*
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* This program 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 License, version 3,
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* along with this program. 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\ISearch;
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use OCP\Search\PagedProvider;
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use OCP\Search\Provider;
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use Psr\Log\LoggerInterface;
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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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/** @var Provider[] */
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private $providers = [];
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private $registeredProviders = [];
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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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* @param int $page pages start at page 1
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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, array $inApps = [], $page = 1, $size = 30) {
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$this->initProviders();
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$results = [];
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foreach ($this->providers as $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, $size));
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} elseif ($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 - 1) * $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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\OCP\Server::get(LoggerInterface::class)->warning('Ignoring Unknown search provider', ['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 = [];
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$this->registeredProviders = [];
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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 = [];
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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 $options = []) {
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$this->registeredProviders[] = ['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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