85 lines
2.3 KiB
PHP
85 lines
2.3 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) 2018 (original work) Open Assessment Technologies SA ;
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*/
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namespace oat\tao\helpers\metadata;
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/**
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* Class ResourceCompiledMetadataHelper
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* @package oat\tao\helpers\metadata
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*/
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class ResourceCompiledMetadataHelper
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{
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/**
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* Compiled resource metadata.
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*
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* @var array
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*/
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private $metaData = [];
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/**
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* Gets a particular value from compiled metadata of a Resource.
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*
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* In case of no value can be found with given $language,
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* the implementation will try to retrieve a value for the default installation
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* language. Otherwise, the method returns NULL.
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*
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* @param string $language
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* @param string $name
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* @return mixed
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*/
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public function getValue($name)
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{
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return isset($this->metaData[$name]) ? $this->metaData[$name] : null;
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}
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/**
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* Return resource label
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*
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* @return string|null
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*/
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public function getLabel()
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{
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return $this->getValue('label');
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}
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/**
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* Unpacks resource metadata from a string.
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*
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* @param string $data
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* @return array
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* @throws \common_exception_InconsistentData
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*/
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public function unserialize($data)
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{
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if (!is_string($data)) {
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throw new \common_exception_InconsistentData('The encoded resource metadata should be provided as a string');
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}
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$metaData = json_decode($data, true);
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if (!is_array($metaData)) {
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throw new \common_exception_InconsistentData('The decoded resource metadata should be an array');
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}
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$this->metaData = $metaData;
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return $this->metaData;
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}
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}
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