85 lines
3.0 KiB
PHP
85 lines
3.0 KiB
PHP
<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2002-2008 (original work) Public Research Centre Henri Tudor & University of Luxembourg (under the project TAO & TAO2);
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* 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung (under the project TAO-TRANSFER);
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* 2009-2012 (update and modification) Public Research Centre Henri Tudor (under the project TAO-SUSTAIN & TAO-DEV);
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*
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*/
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use oat\oatbox\service\ConfigurableService;
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use oat\generis\model\kernel\uri\UriProvider;
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use oat\generis\model\kernel\uri\UriProviderException;
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/**
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* UriProvider implementation based on a serial stored in the database.
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*
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* @access public
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* @author Jerome Bogaerts, <jerome.bogaerts@tudor.lu>
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* @package generis
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*/
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class core_kernel_uri_DatabaseSerialUriProvider extends ConfigurableService implements UriProvider
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{
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const OPTION_PERSISTENCE = 'persistence';
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const OPTION_NAMESPACE = 'namespace';
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// --- ASSOCIATIONS ---
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// --- ATTRIBUTES ---
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// --- OPERATIONS ---
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/**
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* @return common_persistence_SqlPersistence
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*/
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public function getPersistence()
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{
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return common_persistence_SqlPersistence::getPersistence($this->getOption(self::OPTION_PERSISTENCE));
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}
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/**
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* Generates a URI based on a serial stored in the database.
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*
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* @access public
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* @author Jerome Bogaerts, <jerome.bogaerts@tudor.lu>
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* @return string
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* @throws UriProviderException
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*/
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public function provide()
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{
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$returnValue = (string) '';
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try {
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$sth = $this->getPersistence()->query($this->getPersistence()->getPlatForm()->getSqlFunction("generis_sequence_uri_provider"), [
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$this->getOption(self::OPTION_NAMESPACE)
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]);
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if ($sth !== false) {
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$row = $sth->fetch();
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$returnValue = current($row);
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$sth->closeCursor();
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} else {
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throw new UriProviderException("An error occured while calling the stored procedure for persistence " . $this->getOption(self::OPTION_PERSISTENCE) . ".");
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}
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} catch (Exception $e) {
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throw new UriProviderException("An error occured while calling the stored ': " . $e->getMessage() . ".");
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}
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return (string) $returnValue;
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}
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}
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