/**
* @param object Resource $resource
* @access private
*/
function collectNamespace($resource)
{
$namespace = RDFUtil::getNamespace($resource);
if (!in_array($namespace, $this->m_namespaces) && $namespace != '') {
$prefix = array_search($namespace, $this->m_defaultNamespaces);
if ($prefix === FALSE) {
$prefix = $this->getNextNamespacePrefix();
}
$this->m_namespaces[$prefix] = $namespace;
}
}
/**
* Get Node Type.
* Used by RDFUtil::writeHTMLTable()
*
* @param object Node $node
* @return object Resource
* @access private
*/
function getNodeTypeName($node)
{
if (is_a($node, "BlankNode")) {
return 'Blank Node: ';
} elseif (is_a($node, 'Literal')) {
return 'Literal: ';
} else {
if (RDFUtil::getNamespace($node) == RDF_NAMESPACE_URI || RDFUtil::getNamespace($node) == RDF_SCHEMA_URI || RDFUtil::getNamespace($node) == OWL_URI) {
return 'RDF Node: ';
}
}
return 'Resource: ';
}
/**
* Returns all tripels of a certain vocabulary.
* $vocabulary is the namespace of the vocabulary inluding a # : / char at the end.
* e.g. http://www.w3.org/2000/01/rdf-schema#
* Returns an empty MemModel if nothing is found.
*
* @param string $vocabulary
* @return object MemModel
* @access public
*/
function findVocabulary($vocabulary)
{
if ($this->size() == 0) {
return new MemModel();
}
if ($vocabulary == NULL || $vocabulary == '') {
return $this;
}
$res = new MemModel($this->getBaseURI());
if ($this->indexed == 0) {
foreach ($this->indexArr[5] as $key => $value) {
$pos = strpos($key, '#') + 1;
if (substr($key, 0, $pos) == $vocabulary) {
for ($i = 1; $i <= $value[0]; $i++) {
$res->add($this->triples[$value[$i]]);
}
}
}
return $res;
} else {
// Import Package Utility
include_once RDFAPI_INCLUDE_DIR . PACKAGE_UTILITY;
foreach ($this->triples as $value) {
if (RDFUtil::getNamespace($value->getPredicate()) == $vocabulary) {
$res->add($value);
}
}
return $res;
}
}
