<?php /** * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; under version 2 * of the License (non-upgradable). * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Copyright (c) 2018 (original work) Open Assessment Technologies SA ; */ namespace oat\tao\helpers\metadata; /** * Class ResourceCompiledMetadataHelper * @package oat\tao\helpers\metadata */ class ResourceCompiledMetadataHelper { /** * Compiled resource metadata. * * @var array */ private $metaData = []; /** * Gets a particular value from compiled metadata of a Resource. * * In case of no value can be found with given $language, * the implementation will try to retrieve a value for the default installation * language. Otherwise, the method returns NULL. * * @param string $language * @param string $name * @return mixed */ public function getValue($name) { return isset($this->metaData[$name]) ? $this->metaData[$name] : null; } /** * Return resource label * * @return string|null */ public function getLabel() { return $this->getValue('label'); } /** * Unpacks resource metadata from a string. * * @param string $data * @return array * @throws \common_exception_InconsistentData */ public function unserialize($data) { if (!is_string($data)) { throw new \common_exception_InconsistentData('The encoded resource metadata should be provided as a string'); } $metaData = json_decode($data, true); if (!is_array($metaData)) { throw new \common_exception_InconsistentData('The decoded resource metadata should be an array'); } $this->metaData = $metaData; return $this->metaData; } }