protected function getTriples($file)
{
if (!file_exists($file)) {
throw new Exception($file . ' not found');
}
// validate the file to import
$parser = new tao_models_classes_Parser($file, array('extension' => 'rdf'));
$parser->validate();
if (!$parser->isValid()) {
throw new common_Exception('Invalid RDF file ' . $file);
}
$modelDefinition = new EasyRdf_Graph();
$modelDefinition->parseFile($file);
/*
$graph = $modelDefinition->toRdfPhp();
$resources = $modelDefinition->resources();
*/
$format = EasyRdf_Format::getFormat('php');
$data = $modelDefinition->serialise($format);
$triples = array();
foreach ($data as $subjectUri => $propertiesValues) {
foreach ($propertiesValues as $prop => $values) {
foreach ($values as $k => $v) {
$triples[] = array('s' => $subjectUri, 'p' => $prop, 'o' => $v['value'], 'l' => isset($v['lang']) ? $v['lang'] : '');
}
}
}
return $triples;
}
/**
* (non-PHPdoc)
* @see tao_models_classes_import_ImportHandler::import()
*/
public function import($class, $form)
{
$fileInfo = $form->getValue('source');
$file = $fileInfo['uploaded_file'];
//validate the file to import
$parser = new tao_models_classes_Parser($file, array('extension' => 'rdf'));
$parser->validate();
if (!$parser->isValid()) {
$report = common_report_Report::createFailure(__('Nothing imported'));
$report->add($parser->getReport());
return $report;
} else {
return $this->flatImport($file, $class);
}
}
/**
* Short description of method run
*
* @access public
* @author Jerome Bogaerts, <*****@*****.**>
* @return void
*/
public function run()
{
$userService = tao_models_classes_UserService::singleton();
$this->outVerbose("Connecting to TAO as '" . $this->options['user'] . "' ...");
if ($userService->loginUser($this->options['user'], $this->options['password'])) {
$this->outVerbose("Connected to TAO as '" . $this->options['user'] . "'.");
//determine the target namespace.
$targetNamespace = rtrim(common_ext_NamespaceManager::singleton()->getLocalNamespace()->getUri(), '#');
if (!empty($this->options['model'])) {
$targetNamespace = $this->options['model'];
} else {
// Look for XML Base.
$this->outVerbose("Looking up for the value of xml:base as the model URI.");
try {
$dom = new DOMDocument('1.0', TAO_DEFAULT_ENCODING);
if (false !== $dom->load($this->options['input'])) {
$this->outVerbose("RDF-XML document loaded.");
// try to find the 'xml:base' attribute on the root node.
$roots = $dom->getElementsByTagNameNS('http://www.w3.org/1999/02/22-rdf-syntax-ns#', 'RDF');
if ($roots->length > 0) {
$this->outVerbose("Root RDF element found.");
$root = $roots->item(0);
$node = $root->getAttributeNodeNS('http://www.w3.org/XML/1998/namespace', 'base');
if (!empty($node)) {
$targetNamespace = $node->value;
} else {
$this->outVerbose("No xml:base attribute found. The local model will be used.");
}
}
} else {
$this->err("RDF-XML could not be loaded.", true);
}
} catch (DOMException $e) {
$this->err("RDF-XML parsing error: " . $e->getMessage(), true);
}
}
//validate the file to import
$parser = new tao_models_classes_Parser($this->options['input'], array('extension' => 'rdf'));
$parser->validate();
$this->outVerbose("Model URI is '{$targetNamespace}'.");
if (!$parser->isValid()) {
foreach ($parser->getErrors() as $error) {
$this->outVerbose("RDF-XML parsing error in '" . $error['file'] . "' at line '" . $error['line'] . "': '" . $error['message'] . "'.");
}
$userService->logout();
$this->err("RDF-XML parsing error.", true);
} else {
//initialize the adapter (no target class but a target namespace)
$adapter = new tao_helpers_data_GenerisAdapterRdf();
if ($adapter->import($this->options['input'], null, $targetNamespace)) {
$this->outVerbose("RDF 'input' file successfully imported.");
$userService->logout();
} else {
$userService->logout();
$this->err("An error occured during RDF-XML import.", true);
}
}
} else {
$this->err("Unable to connect to TAO as '" . $this->options['user'] . "'.", true);
}
}