//Create an instance of the data node type that is mapped to the name of the xml DOM node
public IDataNode ParseNode(XmlNode node, IDataNode parent, IDataNode preNode)
{
IDataNode dataNode = null;
try
{
if (preNode == null)
{
if (!m_Nodes.ContainsKey(node.Name))
{
//throw new XmlException("Unknown XML node: " + node.Name);
return(null);
}
NodeEntry ne = (NodeEntry)m_Nodes[node.Name];
Type type = ne.Type;
DataNodeAttribute dna = ne.Attribute;
dataNode = (IDataNode)type.Assembly.CreateInstance(type.FullName);
if (dataNode == null)
{
throw new OutOfMemoryException("Could not create new parser instance: " + type.FullName);
}
}
else
{
dataNode = preNode;
}
dataNode.Parent = parent;
dataNode.Parse(node);
}
catch (WarningException wex)
{
m_Log.Write(LogType.Warning, wex.Message);
return(null);
}
catch (FatalException fex)
{
m_Log.WriteException(LogType.Error, fex);
throw;
}
catch (Exception ex)
{
m_Log.WriteException(LogType.Error, ex);
throw;
}
return(dataNode);
}
private void CacheNodeTypes(Assembly assm)
{
foreach (Type t in assm.GetTypes())
{
DataNodeAttribute dna = (DataNodeAttribute)Helper.CheckType(t, typeof(DataNodeAttribute), typeof(IDataNode));
if (dna == null)
{
continue;
}
NodeEntry ne = new NodeEntry();
ne.Type = t;
ne.Attribute = dna;
m_Nodes[dna.Name] = ne;
}
}