/**
* @param $child
* @param $xmlNS
* @param $about
* @param $tus
* @return array
*/
protected function processUnit($child, $xmlNS, $about, $tus)
{
if ($child->hasAttributeNS($xmlNS, 'lang')) {
$sourceLanguage = 'en-US';
$targetLanguage = $child->getAttributeNodeNS($xmlNS, 'lang')->value;
$source = $child->nodeValue;
$target = $child->nodeValue;
$tu = new tao_helpers_translation_RDFTranslationUnit();
$tu->setSource($source);
$tu->setTarget($target);
$tu->setSourceLanguage($sourceLanguage);
$tu->setTargetLanguage($targetLanguage);
$tu->setSubject($about);
$tu->setPredicate($child->namespaceURI . $child->localName);
$tus[] = $tu;
return $tus;
}
return $tus;
}
/**
* Short description of method read
*
* @access public
* @author Jerome Bogaerts, <*****@*****.**>
* @return mixed
*/
public function read()
{
$translationUnits = array();
try {
$translationFile = $this->getTranslationFile();
} catch (tao_helpers_translation_TranslationException $e) {
$translationFile = new tao_helpers_translation_RDFTranslationFile();
}
$this->setTranslationFile($translationFile);
$inputFile = $this->getFilePath();
if (file_exists($inputFile)) {
if (is_file($inputFile)) {
if (is_readable($inputFile)) {
try {
$doc = new DOMDocument('1.0', 'UTF-8');
$doc->load($inputFile);
$xpath = new DOMXPath($doc);
$rdfNS = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#';
$xmlNS = 'http://www.w3.org/XML/1998/namespace';
$xpath->registerNamespace('rdf', $rdfNS);
$rootNodes = $xpath->query('//rdf:RDF');
if ($rootNodes->length == 1) {
// Try to get annotations from the root node.
$sibling = $rootNodes->item(0)->previousSibling;
while ($sibling !== null) {
if ($sibling instanceof DOMNode && $sibling->nodeType == XML_COMMENT_NODE) {
$annotations = tao_helpers_translation_RDFUtils::unserializeAnnotations($sibling->data);
$translationFile->setAnnotations($annotations);
if (isset($annotations['sourceLanguage'])) {
$translationFile->setSourceLanguage($annotations['sourceLanguage']);
}
if (isset($annotations['targetLanguage'])) {
$translationFile->setTargetLanguage($annotations['targetLanguage']);
}
break;
}
$sibling = $sibling->previousSibling;
}
$descriptions = $xpath->query('//rdf:Description');
foreach ($descriptions as $description) {
if ($description->hasAttributeNS($rdfNS, 'about')) {
$subject = $description->getAttributeNS($rdfNS, 'about');
// Let's retrieve properties.
foreach ($description->childNodes as $property) {
if ($property->nodeType == XML_ELEMENT_NODE) {
// Retrieve namespace uri of this node.
if ($property->namespaceURI != null) {
$predicate = $property->namespaceURI . $property->localName;
// Retrieve an hypothetic target language.
$lang = tao_helpers_translation_Utils::getDefaultLanguage();
if ($property->hasAttributeNS($xmlNS, 'lang')) {
$lang = $property->getAttributeNS($xmlNS, 'lang');
}
$object = $property->nodeValue;
$tu = new tao_helpers_translation_RDFTranslationUnit('');
$tu->setTargetLanguage($lang);
$tu->setTarget($object);
$tu->setSubject($subject);
$tu->setPredicate($predicate);
// Try to get annotations.
$sibling = $property->previousSibling;
while ($sibling !== null) {
if ($sibling instanceof DOMNode && $sibling->nodeType == XML_COMMENT_NODE) {
// We should have the annotations we are looking for.
$annotations = tao_helpers_translation_RDFUtils::unserializeAnnotations($sibling->data);
$tu->setAnnotations($annotations);
// Set the found sources and sourcelanguages if found.
if (isset($annotations['source'])) {
$tu->setSource($annotations['source']);
}
}
$sibling = $sibling->previousSibling;
}
$translationUnits[] = $tu;
}
}
}
}
}
$this->getTranslationFile()->addTranslationUnits($translationUnits);
} else {
throw new tao_helpers_translation_TranslationException("'{$inputFile}' has no rdf:RDF root node or more than one rdf:RDF root node.");
}
} catch (DOMException $e) {
throw new tao_helpers_translation_TranslationException("'{$inputFile}' cannot be parsed.");
}
} else {
throw new tao_helpers_translation_TranslationException("'{$inputFile}' cannot be read. Check your system permissions.");
}
} else {
throw new tao_helpers_translation_TranslationException("'{$inputFile}' is not a file.");
}
} else {
throw new tao_helpers_translation_TranslationException("The file '{$inputFile}' does not exist.");
}
}