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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2002-2008 (original work) Public Research Centre Henri Tudor & University of Luxembourg |
| 19 | * (under the project TAO & TAO2); |
| 20 | * 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung |
| 21 | * (under the project TAO-TRANSFER); |
| 22 | * 2009-2012 (update and modification) Public Research Centre Henri Tudor |
| 23 | * (under the project TAO-SUSTAIN & TAO-DEV); |
| 24 | * |
| 25 | */ |
| 26 | |
| 27 | use oat\oatbox\service\ConfigurableService; |
| 28 | use oat\generis\model\kernel\uri\UriProvider; |
| 29 | use oat\generis\model\kernel\uri\UriProviderException; |
| 30 | |
| 31 | /** |
| 32 | * UriProvider implementation based on an advanced key value storage |
| 33 | * |
| 34 | * @access public |
| 35 | * @author Joel Bout, <joel@taotesting.com> |
| 36 | * @package generis |
| 37 | */ |
| 38 | class core_kernel_uri_AdvKeyValueUriProvider extends ConfigurableService implements UriProvider |
| 39 | { |
| 40 | public const OPTION_PERSISTENCE = 'persistence'; |
| 41 | public const OPTION_NAMESPACE = 'namespace'; |
| 42 | |
| 43 | public const PERSISTENCE_KEY = 'generis_uriProvider'; |
| 44 | |
| 45 | /** |
| 46 | * @return common_persistence_AdvKeyValuePersistence |
| 47 | */ |
| 48 | public function getPersistence() |
| 49 | { |
| 50 | return common_persistence_AdvKeyValuePersistence::getPersistence($this->getOption(self::OPTION_PERSISTENCE)); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Generates a URI based on a serial stored in the database. |
| 55 | * |
| 56 | * @access public |
| 57 | * @author Jerome Bogaerts, <jerome.bogaerts@tudor.lu> |
| 58 | * @return string |
| 59 | * @throws UriProviderException |
| 60 | */ |
| 61 | public function provide() |
| 62 | { |
| 63 | $nextId = $this->getPersistence()->incr(self::PERSISTENCE_KEY); |
| 64 | list($usec, $sec) = explode(" ", microtime()); |
| 65 | $uri = $this->getOption(self::OPTION_NAMESPACE) . 'i' . (str_replace(".", "", $sec . "" . $usec)) . $nextId; |
| 66 | |
| 67 | return $uri; |
| 68 | } |
| 69 | } |