function outputRdf($rdf, $title = 'Serialized RDF')
{
if (!clientAcceptsRDF()) {
dump($rdf, $title);
} else {
ob_clean();
header("Content-Type: application/rdf+xml;charset=utf-8");
header("Cache-Control: no-cache, must-revalidate");
header("Expires: " . gmdate("D, d M Y H:i:s", time()));
echo $rdf;
}
}
header("HTTP/1.1 500 Internal Server Error");
echo parameterize($HTML_TEMPLATE_ERROR, array('TITLE' => 'Flickr error #' . $FLICKRSERVICE->errCode, 'MESSAGE' => $FLICKRSERVICE->errMsg, 'FLICKRWRAPPR_HOMEPAGE' => FLICKRWRAPPR_HOMEPAGE));
} else {
header("HTTP/1.1 404 Not Found");
if (!isset($_REQUEST['item'])) {
echo parameterize($HTML_TEMPLATE_ERROR, array('TITLE' => 'Sorry, no photos found in the specified area', 'MESSAGE' => 'Please extend the search radius or verify the coordinates!', 'FLICKRWRAPPR_HOMEPAGE' => FLICKRWRAPPR_HOMEPAGE));
} else {
if ($resourceFound) {
echo parameterize($HTML_TEMPLATE_ERROR, array('TITLE' => 'Sorry, no photos found for DBpedia.org resource ' . $_REQUEST['item'], 'MESSAGE' => 'You specified a valid resource, but we were unable to locate any photos for it!', 'FLICKRWRAPPR_HOMEPAGE' => FLICKRWRAPPR_HOMEPAGE));
} else {
echo parameterize($HTML_TEMPLATE_ERROR, array('TITLE' => 'DBpedia.org resource ' . $_REQUEST['item'] . ' does not exist', 'MESSAGE' => 'Sorry, we were unable to find a resource at <a href="http://dbpedia.org">http://dbpedia.org</a> that matches your request!', 'FLICKRWRAPPR_HOMEPAGE' => FLICKRWRAPPR_HOMEPAGE));
}
}
}
exit;
} else {
/* Output model */
$ser = new RdfSerializer();
$rdf = $ser->serialize($resultModel);
if (clientAcceptsRDF()) {
outputRdf($rdf);
} else {
/* Prepare HTML version */
$res = $resultModel->sparqlQuery($QUERY_DISPLAY);
$photos_html = "";
foreach ($res as $line) {
$photos_html .= parameterize($HTML_TEMPLATE_PHOTO, array("SRC" => $line['?img']->getURI(), "HREF" => $line['?flickrpage']->getURI()));
}
echo parameterize($HTML_TEMPLATE_RESULTS, array("TITLE" => $resultsLabel, "RDF" => htmlspecialchars($rdf), "PHOTOS_HTML" => $photos_html, "FLICKRWRAPPR_HOMEPAGE" => FLICKRWRAPPR_HOMEPAGE, "FLICKR_TOS_URL" => FLICKR_TOS_URL));
}
}
