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added Sweet Ontology repository (with 200+ sub ontologies)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,174 @@ | ||
| <?php | ||
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| declare(strict_types=1); | ||
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| namespace App\Extractor; | ||
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| use App\IndexEntry; | ||
| use Exception; | ||
| use RecursiveDirectoryIterator; | ||
| use RecursiveIteratorIterator; | ||
| use ZipArchive; | ||
|
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| /** | ||
| * Semantic Web for Earth and Environmental Terminology (SWEET) Ontologies | ||
| * | ||
| * Reads ontology information from Githhub repository: | ||
| * | ||
| * https://github.com/ESIPFed/sweet | ||
| */ | ||
| class SweetOntologies extends AbstractExtractor | ||
| { | ||
| private string $nameOfUnzippedFolder = 'sweet-master'; | ||
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| protected string $namespace = 'extractor_sweet_ontologies'; | ||
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| /** | ||
| * Folder path to ontology list. | ||
| */ | ||
| protected string $unzippedContent = VAR_FOLDER_PATH.'sweet-master'.DIRECTORY_SEPARATOR.'src'.DIRECTORY_SEPARATOR; | ||
| private string $ontologyListUrl = 'https://github.com/ESIPFed/sweet/archive/refs/heads/master.zip'; | ||
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| /** | ||
| * @throws \Exception | ||
| * @throws \UnexpectedValueException | ||
| */ | ||
| public function run(): void | ||
| { | ||
| echo PHP_EOL; | ||
| echo '-------------------------------------------------'; | ||
| echo PHP_EOL; | ||
| echo 'Sweet Ontologies - Extraction started ...'; | ||
| echo PHP_EOL; | ||
|
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| /* | ||
| * Approach: | ||
| * | ||
| * 1. download latest state of the repository | ||
| * 2. unzip | ||
| * 3. read content of src folder (contains all ontologies) | ||
| * 4. fill index | ||
| */ | ||
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| // 1. download latest state of the repository | ||
| $downloadedFilepath = $this->cache->getCachedFilePathForFileUrl($this->ontologyListUrl); | ||
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| // if available, remove folder with repository content | ||
| if (file_exists(VAR_FOLDER_PATH.$this->nameOfUnzippedFolder)) { | ||
| $this->removeFolderRec(VAR_FOLDER_PATH.$this->nameOfUnzippedFolder); | ||
| } | ||
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| // 2. unzip | ||
| $this->unzip($downloadedFilepath, VAR_FOLDER_PATH); | ||
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| // 3. read content of src folder to get a list of all ontology files | ||
| $path = VAR_FOLDER_PATH.$this->nameOfUnzippedFolder.DIRECTORY_SEPARATOR.'src'; | ||
| $ttlFiles = $this->getTtlFileListOfFolder($path); | ||
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| sort($ttlFiles); | ||
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| foreach ($ttlFiles as $ttlFilepath) { | ||
| echo PHP_EOL; | ||
| echo PHP_EOL.'process: '.$ttlFilepath; | ||
| echo PHP_EOL; | ||
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| $newEntry = $this->getPreparedIndexEntry(); | ||
| $fileHandle = fopen($ttlFilepath, 'r'); | ||
| if (false === $fileHandle) { | ||
| throw new Exception('Could not read file '.$ttlFilepath); | ||
| } | ||
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| $graph = $this->loadQuadsIntoGraph($fileHandle, $ttlFilepath); | ||
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| // get ontology IRI | ||
| $entries = $graph->getInstancesOfType('owl:Ontology'); | ||
| if (1 == count($entries)) { | ||
| $newEntry->setOntologyIri($entries[0]); | ||
| $this->addFurtherMetadata($newEntry, $graph); | ||
| } else { | ||
| echo PHP_EOL.'IGNORED, because none or more than 1 ontologies found in '.$ttlFilepath; | ||
| continue; | ||
| } | ||
|
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| // set title | ||
| $newEntry->setOntologyTitle($graph->getLabel((string) $newEntry->getOntologyIri())); | ||
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| // build TTL file URL and save it | ||
| $newEntry->setLatestTurtleFile('https://raw.githubusercontent.com/ESIPFed/sweet/master/src/'.basename($ttlFilepath)); | ||
|
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| // set modified date | ||
| $lastChangeTimestamp = filemtime($ttlFilepath); | ||
| if (0 < $lastChangeTimestamp) { | ||
| $newEntry->setModified(date('Y-m-d', $lastChangeTimestamp)); | ||
| } | ||
|
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| // 4. fill index | ||
| $this->temporaryIndex->storeEntries([$newEntry]); | ||
| } | ||
| } | ||
|
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| public function getPreparedIndexEntry(): IndexEntry | ||
| { | ||
| return new IndexEntry('Sweet Ontologies', $this->ontologyListUrl); | ||
| } | ||
|
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| /** | ||
| * @return array<non-empty-string> | ||
| * | ||
| * @throws \UnexpectedValueException | ||
| */ | ||
| private function getTtlFileListOfFolder(string $folderpath): array | ||
| { | ||
| $rii = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($folderpath)); | ||
| $files = []; | ||
|
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| /** @var \SplFileInfo $file */ | ||
| foreach ($rii as $file) { | ||
| if ($file->isDir()) { | ||
| continue; | ||
| } | ||
|
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| if (str_contains($file->getPathname(), '.ttl')) { | ||
| $files[] = $file->getPathname(); | ||
| } | ||
| } | ||
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| return $files; | ||
| } | ||
|
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| /** | ||
| * @param non-empty-string $fileToExtract | ||
| * @param non-empty-string $targetPath | ||
| * | ||
| * @throws \Exception | ||
| */ | ||
| private function unzip(string $fileToExtract, string $targetPath): void | ||
| { | ||
| $zip = new ZipArchive(); | ||
| $res = $zip->open($fileToExtract); | ||
| if ($res === true) { | ||
| $zip->extractTo($targetPath); | ||
| $zip->close(); | ||
| } else { | ||
| throw new Exception('Unzip of '.$fileToExtract.' failed!'); | ||
| } | ||
| } | ||
|
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| /** | ||
| * @throws \UnexpectedValueException | ||
| */ | ||
| private function removeFolderRec(string $folderpath): void | ||
| { | ||
| $files = new RecursiveIteratorIterator( | ||
| new RecursiveDirectoryIterator($folderpath, RecursiveDirectoryIterator::SKIP_DOTS), | ||
| RecursiveIteratorIterator::CHILD_FIRST | ||
| ); | ||
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| foreach ($files as $fileinfo) { | ||
| $todo = ($fileinfo->isDir() ? 'rmdir' : 'unlink'); | ||
| $todo($fileinfo->getRealPath()); | ||
| } | ||
|
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| rmdir($folderpath); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,6 +1,7 @@ | ||
| downloaded_rdf_files/* | ||
| temp_files/* | ||
| extractor_* | ||
| phpstan_cache | ||
| /downloaded_rdf_files/* | ||
| /extractor_* | ||
| /phpstan_cache | ||
| /sweet-master | ||
| /temp_files/* | ||
| *.* | ||
| !.gitignore |