public DrwConnection ExtractDrwConnectionFromNav(XPathNavigator nav)
{
if (!nav.HasChildren)
{
return(null);
}
int id = -1;
int fromId = -1;
int toId = -1;
nav.MoveToFirstChild();
do
{
if (nav.Name.ToLower() == "id")
{
try
{
id = int.Parse(nav.Value.Trim());
}
catch (Exception e) { throw new Exception("Id not an integer in DrwFile", e); }
}
else if (nav.Name.ToLower() == "fromid")
{
try
{
fromId = int.Parse(nav.Value.Trim());
}
catch (Exception e) { throw new Exception("FromId not an integer in DrwFile", e); }
}
else if (nav.Name.ToLower() == "toid")
{
try
{
toId = int.Parse(nav.Value.Trim());
}
catch (Exception e) { throw new Exception("ToId not an integer in DrwFile", e); }
}
} while (nav.MoveToNext());
DrwConnection connection = new DrwConnection(id, fromId, toId);
return(connection);
}
public FBPGraph GenerateFBPGraphFromDrwFile(Stream drwFileStream, ReplacementConfiguration configuration)
{
XPathDocument xmlPathDoc = new XPathDocument(drwFileStream);
XPathNavigator navigator = xmlPathDoc.CreateNavigator();
XPathNodeIterator blockIterator = navigator.SelectDescendants("block", "", false);
XPathNodeIterator connectionIterator = navigator.SelectDescendants("connection", "", false);
int count = connectionIterator.Count;
List <DrwBlock> blocks = new List <DrwBlock>();
List <DrwConnection> connections = new List <DrwConnection>();
while (blockIterator.MoveNext())
{
XPathNavigator nav = blockIterator.Current.Clone();
DrwBlock block = utility.ExtractDrwBlockFromNav(nav, configuration);
if (block != null)
{
blocks.Add(block);
}
}
while (connectionIterator.MoveNext())
{
XPathNavigator nav = connectionIterator.Current.Clone();
DrwConnection connection = utility.ExtractDrwConnectionFromNav(nav);
if (connection != null)
{
connections.Add(connection);
}
}
FBPGraph graph = new FBPGraph(blocks, connections);
return(graph);
}
