public static List <OntologyNode> fromXml(XElement ontology)
{
OntologyClass currentClass = null;
List <OntologyNode> result = new List <OntologyNode>();
var classes = from x in ontology.Elements()
where x.Name.LocalName == "class"
select x;
var domains = from x in ontology.Elements()
where x.Name.LocalName == "domain"
select x;
foreach (XElement c in classes)
{
currentClass = new OntologyClass(c.Attribute("name").Value);
var classAttrs = from x in c.Elements()
where x.Name.LocalName == "attr"
select x;
var classParents = from x in c.Elements()
where x.Name.LocalName == "base"
select x;
foreach (XElement attrElement in classAttrs)
{
var attrName = ((XText)attrElement.FirstNode).Value; //get inner text of <attr>
var attrTypeStr = attrElement.Attribute("type").Value;
var attrClassName = attrElement.Attribute("class")?.Value;
var attrDomName = attrElement.Attribute("domain")?.Value;
OntologyNode.Attribute.AttributeType attrType = (OntologyNode.Attribute.AttributeType)Enum.Parse(typeof(OntologyNode.Attribute.AttributeType), attrTypeStr.ToUpper());
var attr = new OntologyNode.Attribute(attrType, attrName);
if (attrType == OntologyNode.Attribute.AttributeType.OBJECT && attrClassName != null)
{
attr.Opt = attrClassName;
}
if (attrType == OntologyNode.Attribute.AttributeType.DOMAIN && attrDomName != null)
{
attr.Opt = attrDomName;
}
currentClass.OwnAttributes.Add(attr);
}
if (classParents.Any())
{
foreach (XElement parentElement in classParents)
{
OntologyClass parentClass = null;
foreach (OntologyClass rootClass in result)
{
parentClass = rootClass.FindChild(parentElement.Value);
if (parentClass != null)
{
break;
}
}
if (parentClass == null)
{
throw new Exception(String.Format(Locale.ERR_ONTOLOGY_NOPARENT, parentElement.Value, currentClass.Name));
}
parentClass.AddChild(currentClass);
currentClass.AddParent(parentClass);
}
}
else
{
result.Add(currentClass);
}
}
Ontology.Ontology.Domains = new Dictionary <string, List <string> >();
foreach (XElement d in domains)
{
var valueList = new List <string>();
foreach (XElement el in d.Elements())
{
valueList.Add(el.Value);
}
Ontology.Ontology.Domains.Add(d.Attribute("name").Value, valueList);
}
Ontology.Ontology.Classes = result;
return(result);
}