public TreeNodeViewModel(Element element, TreeNodeViewModel parent)
{
_element = element;
_parent = parent;
IsExpanded = true; //defaults
_children = new ObservableCollection<TreeNodeViewModel>(
(from child in _element.Children
select new TreeNodeViewModel(child, this))
.ToList<TreeNodeViewModel>());
if (_children.Count > 0)
hasChildren = true;
else
hasChildren = false;
}
public string getRelativeAddress(TreeNodeViewModel node)
{
string address = "";
TreeNodeViewModel temp = this;
if (this.Children.Count >= 0)
address = this.getName();
while (temp.Parent != null)
{
if (temp.Parent.isEqual(node))
break; // if this goes in header of while loop it will result in exception sometimes
temp = temp.Parent;
if (!temp.getName().Equals(address))
address = temp.getName() + "/" + address;
}
return address;
}
public bool isEqual(TreeNodeViewModel node)
{
if (node != null)
{
if (this.Type == node.Type && this.Name.Equals(node.Name))//this.EValue.Equals(node.EValue) && --> gives exception
return true;
}
return false;
}
public void generateChildren(XPathReader reader)
{
reader.MoveToContent();
int counter = 0;
while (reader.ReadUntilMatch())
{
switch (reader.NodeType)
{
case XmlNodeType.Element:
//MessageBox.Show("element -> " + reader.Name);
Element newElement = createModelElement(reader);
TreeNodeViewModel newNode = new TreeNodeViewModel(newElement, this);
//check if it has children
if (reader.HasAttributes || !reader.IsEmptyElement)
newNode.hasChildren = true;
else
newNode.hasChildren = false;
newNode.IsExpanded = false;
this.addChild(newNode);
counter++;
break;
case XmlNodeType.Attribute:
Element newAttr = createAttributeElement(reader);
TreeNodeViewModel attrNode = new TreeNodeViewModel(newAttr, this);
attrNode.hasChildren = false;
attrNode.IsExpanded = false;
//MessageBox.Show("attribute -> " + reader.Name + " : " + reader.Value);
this.Children.Add(attrNode);
counter++;
break;
case XmlNodeType.Text:
Element newTextElement = createValueElement(reader);
TreeNodeViewModel newTextElementNode = new TreeNodeViewModel(newTextElement, this);
newTextElementNode.hasChildren = false;
newTextElementNode.IsExpanded = false;
//MessageBox.Show("text -> " + reader.Value);
this.addChild(newTextElementNode);
counter++;
break;
default:
break;
}
if (counter > 10)
break;
}
}
public string generateXSLTSnippet(TreeNodeViewModel relativeParentNode)
{
string XSLTcode = "";
//XSLTcode += "<";
XSLTcode += "xsl:value-of select=\"";
XSLTcode += getRelativeAddress(relativeParentNode);
XSLTcode += "\"";
//XSLTcode += "/>";
return XSLTcode;
}
public XmlNode createSignatureNode(TreeNodeViewModel node)
{
XmlDocument xDoc = new XmlDocument();
XmlNode xnode = null;
if (this.isMatched == true)
{
xnode = xDoc.CreateElement(this.Name) as XmlNode;
if (this.ruleIndex != -1)
{
XmlAttribute attr = xDoc.CreateAttribute("ruleIndex");
attr.AppendChild(xDoc.CreateTextNode(this.ruleIndex.ToString()));//fetch the value
xnode.Attributes.Append(attr);
}
//continue for children
foreach (AbstractTreeLatticeNode n in this.Children)
{
TreeNodeViewModel tn = node.findInChidlsByName(n.Name);
if (tn != null)
xnode.AppendChild(xnode.OwnerDocument.ImportNode(n.createSignatureNode(tn),true));
else
{
xnode.AppendChild(xnode.OwnerDocument.ImportNode(n.createSignatureNode(),true));
MessageBox.Show("Could not find \"" + n.Name + "\" in treeNode");
}
}
}
else
{
xnode = xDoc.CreateElement(this.Name) as XmlNode;
//get values (children with only one child and no further dicendant) from node
TreeNodeViewModel temp = node.findInChidlsByName(this.Name);
XmlAttribute attr = xDoc.CreateAttribute("value");
//attr.AppendChild(xDoc.CreateTextNode(temp.Children.ElementAt(0).Name));//fetch the value
attr.AppendChild(xDoc.CreateTextNode(temp.EValue));//fetch the value, not sure, added to get rid of an exception
xnode.Attributes.Append(attr);
}
return xnode;
}
//testing from visual element
public void addChild(TreeNodeViewModel t)
{
Children.Add(t);
OnPropertyChanged("Children");
}
public void processVisual_TreeNodeDrop(TreeNodeViewModel treeN, String FullAddress)
{
//set header for template XSLT
templateVM.HeaderNode = treeN; // I do not think these will be used, they have been used in visualiser to check and set visualfunction abstraction
//set address Id for template XSLT
templateVM.TemplateAddress = FullAddress; // I do not think these will be used
AbstractTreeLatticeNode matchingNode = (ParentWindow as Visualiser).sourceASTL.getAbstractNodeAtAddress(FullAddress);
//define correspondence
if (matchingNode != null)//if you have found the node
{
if (matchingNode.ruleIndex == -1)
{
sourceLatticeNodeToMatch = matchingNode;
}
else if (matchingNode.parent != null)
{
//create a duplicate****************************** duplicate not implemented yet
sourceLatticeNodeToMatch = matchingNode.duplicate();
matchingNode.parent.Children.Add(sourceLatticeNodeToMatch);
}
sourceLatticeNodeToMatch.isMatched = true;
sourceLatticeNodeToMatch.ruleIndex = RULEINDEX;//assign an index for current rule
//assign same rule index for this.abstractTree
this.abstractTree.Root.ruleIndex = sourceLatticeNodeToMatch.ruleIndex;
this.abstractTree.Root.isMatched = true;
//increment index for other correspondences
RULEINDEX++;
//go for reverse, the top part will be obsolete
//this.abstractTreeReverse = new AbstractLattice(matchingNode);//might not need abstract tree for reverse, as one way suggestion will eb shown
this.ReverseData = matchingNode.ToXML();// treeNode.ToXML();//matchingNode might have worked as well but the signature problems might get in the way
this.templateVMR.TemplateName = this.Data.Name;
}
//suggester initiation
AbstractLattice sourceAST = new AbstractLattice(matchingNode);
this.abstractTree.prepare();
SuggesterConfig config = new SuggesterConfig();
config.UseNameSimSuggester = true;
config.UseTypeSimSuggester = true;
config.UseIsoRankSimSuggester = true;
config.UseValueSimSuggester = true;
config.UseStructSimSuggester = true;
(ParentWindow as Visualiser).visualiserSuggester = new Suggester(sourceAST, this.abstractTree, config);
(ParentWindow as Visualiser).updateSuggestions((ParentWindow as Visualiser).visualiserSuggester.getSuggestionsAsStrings((ParentWindow as Visualiser).visualiserSuggester.imFeelingLucky()));
//log event
(ParentWindow as Visualiser).logger.log("\"" + FullAddress + "\" was dropped on \"" + this.VEName + "\"", ReportIcon.OK);
(ParentWindow as Visualiser).ReportStatusBar.ShowStatus("Mapping " + treeN.Name + " to " + this.Data.Name, ReportIcon.Info);
}
public bool processElement_TreeNodeDrop(string sourceElement, string targetElement, TreeNodeViewModel sourceNode)
{
if (templateVM.HeaderNode != null && sourceLatticeNodeToMatch != null)
{
string source = sourceElement;
if (sourceNode.Name.Equals(templateVM.HeaderNode.Name))//attribute
source = ".";
//else
//source = sourceNode.getRelativeAddress(templateVM.HeaderNode);
string target = targetElement.Substring(targetElement.IndexOf('/') + 1);
templateVM.updateXmlNodeByValue(target, sourceElement);
//for reverse
string rsource = sourceNode.getRelativeAddress(templateVM.HeaderNode); //this might give wrong ones, but will not be a problem
if (rsource.IndexOf("@") == 0) //is an attribute, so send it with its parent get its parent name behind it
rsource = sourceNode.Parent.Name + "/" + rsource;//if @ index is more than 0, the parent has already been included
//MessageBox.Show(rsource + "\n\n" + target);
templateVMR.updateXmlNodeByValue(rsource, target);
//MessageBox.Show(templateVM.TemplateXmlNode.OuterXml + "\n\n" + templateVMR.TemplateXmlNode.OuterXml);
//Abstraction mechanism and rule indexing (no use)
AbstractTreeLatticeNode toMatch = sourceLatticeNodeToMatch.findChildrenByAddress(sourceNode.getRelativeAddress(templateVM.HeaderNode));
AbstractTreeLatticeNode targetMatch = abstractTree.getAbstractNodeAtAddress(targetElement);
if (toMatch != null && targetMatch != null)
{
//assign an index for source rule correspondence
toMatch.isMatched = true;
toMatch.ruleIndex = RULEINDEX;
//assign same rule index for this.abstractTree
targetMatch.isMatched = true;
targetMatch.ruleIndex = RULEINDEX;
//increment index for other correspondences
RULEINDEX++;
}
return true;
}
else
{
ShowStatus("Please set the top element correspondence first!", ReportIcon.Error);
return false;
}
}
/// <summary>
/// Analyse abstract Tree node and check for signature with values from treeVNodeViewModel node
/// </summary>
/// <param name="node">null if signature is based on AbstractLattice only</param>
public XmlNode createSignature(TreeNodeViewModel node)
{
XmlDocument xDoc = new XmlDocument();
if (/*this.isAllNodesMatched() ||*/ node == null)
{
//create signature form abstract tree
return this.Root.createSignatureNode();
}
else
{
//create signature using tree node
return this.Root.createSignatureNode(node);
//throw new NotImplementedException();
}
}
/// <summary>
/// Processing based on On-Demand approach
/// </summary>
/// <param name="strFile"></param>
/// <returns></returns>
private TreeNodeViewModel processXml(string strFile)
{
Element root = new Element();//root element
TreeNodeViewModel rootNode = null;
try
{
using (var reader = XmlReader.Create(strFile))
{
//reader.MoveToContent();
//pass any whitespace or useless element
while (reader.NodeType != XmlNodeType.Element)
reader.Read();
//first element
if (reader.NodeType == XmlNodeType.Element)
{
//create starting element
root = createModelElement(reader);
rootNode = new TreeNodeViewModel(root);
if ((reader.NodeType == XmlNodeType.Element) && (reader.HasAttributes || !reader.IsEmptyElement))
rootNode.hasChildren = true;
else if (reader.IsEmptyElement || reader.NodeType == XmlNodeType.Text)
rootNode.hasChildren = false;
}
else
MessageBox.Show("First element of Model file is not an XML Element","Exception",MessageBoxButton.OK, MessageBoxImage.Error);
}
}
catch (XmlException e)
{
Console.WriteLine("error occured: " + e.Message);
}
return rootNode;
}
private void initiate(Element rootElement)
{
_rootElement = new TreeNodeViewModel(rootElement);
FirstChild = new Collection<TreeNodeViewModel>(
new TreeNodeViewModel[]
{
_rootElement
});
}
