209 lines
6.2 KiB
PHP
209 lines
6.2 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) 2019 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*/
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namespace oat\generis\scripts\tools\FileSerializerMigration;
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use core_kernel_classes_Property;
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use core_kernel_classes_Resource;
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use oat\generis\model\resource\ResourceCollection;
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use oat\generis\model\fileReference\FileSerializerException;
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use oat\generis\model\fileReference\ResourceFileSerializer;
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use oat\generis\model\fileReference\UrlFileSerializer;
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use oat\generis\model\GenerisRdf;
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use oat\generis\model\OntologyAwareTrait;
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use oat\oatbox\filesystem\Directory;
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use oat\oatbox\filesystem\File;
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use Zend\ServiceManager\ServiceLocatorAwareInterface;
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use Zend\ServiceManager\ServiceLocatorAwareTrait;
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/**
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* Helper class for the File serializer migration script
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*/
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class MigrationHelper implements ServiceLocatorAwareInterface
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{
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use OntologyAwareTrait;
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use ServiceLocatorAwareTrait;
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/**
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* Amount of resources processed in one batch
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*/
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const BATCH_LIMIT = 100;
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/**
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* @var UrlFileSerializer
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*/
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private $urlFileSerializer;
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/**
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* @var ResourceFileSerializer
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*/
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private $resourceFileSerializer;
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/**
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* @var bool
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*/
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private $isWetRun;
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/**
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* @var int[]
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*/
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public $migrationInformation = [
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'old_resource_count' => 0,
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'old_resource_migration_count' => 0,
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'migrated_count' => 0
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];
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/**
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* @var string[][]
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*/
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public $failedResources = [];
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/**
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* @var bool
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*/
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public $endReached = false;
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/**
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* @var ResourceCollection
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*/
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private $fileResourceCollection;
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/**
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* FileSerializerMigrationHelper constructor.
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*
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* @param bool $wetRun
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*/
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public function __construct($wetRun = false)
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{
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$this->isWetRun = $wetRun;
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}
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/**
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* Get the file resources and migrate them.
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*
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* @return void
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* @throws FileSerializerException
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*/
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public function migrateFiles()
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{
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$fileResources = $this->getFileResourceData();
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foreach ($fileResources as $fileResourceData) {
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$resourceUri = $fileResourceData['fileResource']->getUri();
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if (!isset($fileResourceData['property'])) {
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$this->failedResources[$resourceUri][] = 'Unable to find property';
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continue;
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}
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if (!isset($fileResourceData['subject'])) {
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$this->failedResources[$resourceUri][] = 'Unable to find subject';
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continue;
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}
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++$this->migrationInformation['old_resource_count'];
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$this->migrateResource(
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$fileResourceData['fileResource'],
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$fileResourceData['property'],
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$fileResourceData['subject']
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);
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}
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}
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/**
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* Migrate a single resource.
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*
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* @param core_kernel_classes_Resource $fileResource
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* @param core_kernel_classes_Property $property
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* @param core_kernel_classes_Resource $subject
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* @return void
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* @throws FileSerializerException
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*/
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public function migrateResource(core_kernel_classes_Resource $fileResource, core_kernel_classes_Property $property, core_kernel_classes_Resource $subject)
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{
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/** @var Directory|File $unserializedFileResource */
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$unserializedFileResource = $this->getResourceFileSerializer()->unserialize($fileResource);
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$migratedValue = $this->getUrlFileSerializer()->serialize($unserializedFileResource);
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if ($this->isWetRun) {
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$subject->editPropertyValues($property, $migratedValue);
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$fileResource->delete();
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}
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++$this->migrationInformation['migrated_count'];
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}
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/**
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* Get the URL file serializer
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*/
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private function getUrlFileSerializer()
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{
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if ($this->urlFileSerializer === null) {
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$this->urlFileSerializer = new UrlFileSerializer();
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$this->urlFileSerializer->setServiceLocator($this->getServiceLocator());
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}
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return $this->urlFileSerializer;
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}
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/**
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* Get the Resource file serializer
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*/
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private function getResourceFileSerializer()
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{
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if ($this->resourceFileSerializer === null) {
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$this->resourceFileSerializer = new ResourceFileSerializer();
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$this->resourceFileSerializer->setServiceLocator($this->getServiceLocator());
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}
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return $this->resourceFileSerializer;
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}
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/**
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* @return array
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*/
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private function getFileResourceData()
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{
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$mappedResourceData = [];
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if ($this->fileResourceCollection === null) {
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$this->fileResourceCollection = $this->getClass(GenerisRdf::CLASS_GENERIS_FILE)->getInstanceCollection();
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$this->fileResourceCollection->useLimit();
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}
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$fileResourceUris = [];
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foreach ($this->fileResourceCollection as $fileResource) {
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$fileResourceUris[] = $fileResource['subject'];
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}
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$this->endReached = $this->fileResourceCollection->getEndReached();
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$parentFileResources = new ResourceCollection(null, 0);
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$parentFileResources->addFilter('object', 'IN', $fileResourceUris);
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foreach ($parentFileResources as $resourceUri => $parentFileResource) {
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$mappedResourceData[] = [
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'fileResource' => $this->getResource($parentFileResource['object']),
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'property' => $this->getProperty($parentFileResource['predicate']),
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'subject' => $this->getResource($parentFileResource['subject']),
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];
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}
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return $mappedResourceData;
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}
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}
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