registerNamespace('Erfurt_');
# Creating an instance of Erfurt API
$app = Erfurt_App::getInstance();
// Add some logging message (check log config.ini settings to be sure it appears in your logs)
$logger = Erfurt_App::getInstance()->getLog();
$logger->info('Example application started!');
# Authentification on Erfurt (needed for model access)
$dbUser = $app->getStore()->getDbUser();
$dbPass = $app->getStore()->getDbPassword();
$app->authenticate($dbUser, $dbPass);
// Load Henry Story's FAOF profile into a model named after the document's URL
$modelUri = 'http://bblfish.net/people/henry/card';
$foafUri = $modelUri.'#me';
# Get a new model
try {
# Create it if it doesn't exist
$model = $app->getStore()->getNewModel($modelUri);
} catch (Erfurt_Store_Exception $e) {
# Get it if it already exists
$model = $app->getStore()->getModel($modelUri);
}
// Go fetch the data on the Web
// This could be used, but uses PHP's fopen, which may not be best for Linked Data consumption
//$ret = $app->getStore()->importRdf($model, $modelUri, 'xml');
// This one will load the data using a HTTP request handled in Erfurt
$ret = $app->getStore()->importRdf($model, $modelUri, 'xml',Erfurt_Syntax_RdfParser::LOCATOR_URL);
// Now, process the loaded data using SPARQL queries
// Find Henry's name
$query = 'SELECT ?n WHERE {<'. $foafUri .'> foaf:name ?n.}';
$res = $model->sparqlQuery($query);
$name = $res[0]['n'];
echo ''. $name .' knows:';
// Now, find the names of Henry's contacts
$query = 'SELECT ?u ?n WHERE {<'. $foafUri .'> foaf:knows ?u. ?u foaf:name ?n.}';
$res = $model->sparqlQuery($query);
if(count($res) > 0) {
echo '';
}
foreach ($res as $line) {
$person_name = $line['n'];
$person_foaf = $line['u'];
echo '- '. $person_name .'
';
}
if(count($res) > 0) {
echo '
';
}