function downloadZip($format = null){
$app = \Slim\Slim::getInstance();
$extension = array(
'xml' => 'xml',
'rdfxml' => 'xml',
'jsonld' => 'json',
'turtle' => 'ttl',
'ntriples' => 'nt'
);
if(!array_key_exists($format, $extension)){
$app->flash('error', '指定された出力形式が不正です。');
throw new RuntimeException('指定された出力形式が不正です。');
}
$zip = new ZipArchive();
$zipFileName = 'data.zip';
$zipFilePath = $app->config( 'uploadPath' ) ;
$check = $zip->open($zipFilePath.$zipFileName, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE);
if ($check !== true) {
$app->flash('error', 'zipファイルの作成に失敗しました');
throw new RuntimeException('zipファイルの作成に失敗しました');
}
if($format == 'xml'){
$zip->addFromString('schema.xsd' , getSchema());
$xml = new XMLConverter();
$output = $xml->getXML();
}else{
$rdf = new RDFConverter();
$rdf->parseGraph($format);
$output = $rdf->output();
}
$zip->addFromString('convertedData.' . $extension[$format] , $output);
$zip->addFromString('header.xml' , dmdHeaderXML());
$zip->addFromString('header.ttl' , dmdHeaderRDF());
$zip->addFromString('mapping.json' , getMapping());
$zip->close();
$app->response->headers->set( 'Content-Type', 'application/zip; name="' . $zipFileName . '"' );
$app->response->headers->set( 'Content-Disposition', 'attachment; filename="' . $zipFileName . '"' );
$app->response->headers->set( 'Content-Length', filesize($zipFilePath.$zipFileName) );
$app->response->write( file_get_contents($zipFilePath.$zipFileName));
unlink($zipFilePath.$zipFileName);
}
