public override void BuildRelationship(Shape shape)
{
Shape incomingShape = ToolKit.QueryFlowRelationship(shape, VisGluedShapesFlags.visGluedShapesIncoming2D)[0];
Shape outgoingShape = ToolKit.QueryFlowRelationship(shape, VisGluedShapesFlags.visGluedShapesOutgoing2D)[0];
Shape[] incomingShapes = ToolKit.ShapeToArray(incomingShape);
Shape[] outgoingShapes = ToolKit.ShapeToArray(outgoingShape);
foreach (Shape incoming in incomingShapes)
{
foreach (Shape outgoing in outgoingShapes)
{
IOwlNode incomingNode = base._graph.Nodes[ToolKit.GetFullName(Constant.BPMN_TARGET_NAMESPACE, ToolKit.StringShift(incoming.Text))];
IOwlNode outgoingNode = base._graph.Nodes[ToolKit.GetFullName(Constant.BPMN_TARGET_NAMESPACE, ToolKit.StringShift(outgoing.Text))];
string relationship = ToolKit.FlowElementNaming(incoming, shape, outgoing);
IOwlNode relationshipNode = new OwlNode(ToolKit.GetFullName(Constant.BPMN_TARGET_NAMESPACE, relationship));
IOwlEdge incomingEdge = new OwlEdge(ToolKit.GetFullName(Constant.BPMN_TARGET_NAMESPACE, "incoming"));
IOwlEdge outgoingEdge = new OwlEdge(ToolKit.GetFullName(Constant.BPMN_TARGET_NAMESPACE, "outgoing"));
incomingEdge.ChildNode = new OwlLiteral(relationship,"en-us","xsd:string");
incomingNode.AttachChildEdge(incomingEdge);
outgoingEdge.ChildNode = new OwlLiteral(relationship, "en-us", "xsd:string");
outgoingNode.AttachChildEdge(outgoingEdge);
}
}
}
/// <summary>
/// Initializes a new instance of the OwlEdge class with the given URI
/// </summary>
/// <param name="edgeUri">A string representing the Uri of this edge. The ChildNode and ParentNode properties are set to null</param>
/// <exception cref="UriFormatException">The specified edgeUri was not a well formed URI</exception>
public OwlEdge(string edgeUri)
{
Uri u = new Uri(edgeUri);
_edgeID = edgeUri;
_childNode = null;
_parentNode = null;
}
/// <summary>
/// Generates the OWL graph into an XmlDocument object
/// </summary>
/// <param name="graph">The graph which needs to be generated</param>
/// <param name="doc">The XmlDocument object used as a destination for the graph</param>
public void GenerateOwl(IOwlGraph graph, XmlDocument doc)
{
if (doc == null)
{
throw (new ArgumentNullException("The specified XmlDocument object is a null reference"));
}
Warnings.Clear();
Errors.Clear();
_visited.Clear();
XmlElement root = _owlDocument.CreateElement("rdf:RDF", OwlNamespaceCollection.RdfNamespace);
_owlDocument.AppendChild(root);
//Added by HM
// Create an XML declaration.
XmlDeclaration xmldecl = _owlDocument.CreateXmlDeclaration("1.0", null, null);
xmldecl.Encoding = "UTF-8";
xmldecl.Standalone = "yes";
// Add the new node to the document.
_owlDocument.InsertBefore(xmldecl, root);
//End of HM addition
_baseUri = graph.NameSpaces["xml:base"];
IDictionaryEnumerator nsEnumerator = (IDictionaryEnumerator)graph.NameSpaces.GetEnumerator();
while (nsEnumerator.MoveNext())
{
// Write all the namespaces to the document
XmlAttribute nsAttribute = _owlDocument.CreateAttribute((nsEnumerator.Key).ToString());
nsAttribute.Value = (nsEnumerator.Value).ToString();
root.Attributes.Append(nsAttribute);
// Also insert the reversed namespaces into the a local variable
_namespaces[nsEnumerator.Value.ToString()] = nsEnumerator.Key.ToString();
}
IDictionaryEnumerator nEnumerator = (IDictionaryEnumerator)graph.Nodes.GetEnumerator();
while (nEnumerator.MoveNext())
{
OwlNode node = (OwlNode)graph.Nodes[(nEnumerator.Key).ToString()];
if (!node.IsAnonymous())
{
node.Accept(this, root);
}
}
XmlComment comment = _owlDocument.CreateComment("This file has been generated by the OwlDotNetApi.");
_owlDocument.AppendChild(comment);
doc = _owlDocument;
}
/// <summary>
/// Initializes a new instance of the OwlClass class with the given Uri and TypeNode
/// </summary>
/// <param name="nodeUri">A string representing the Uri of this Resource</param>
/// <param name="typeNode">The OwlNode object to attach to the edge specifying the type. This is usually a node with ID owl:Class.</param>
/// <exception cref="ArgumentNullException">typeNode is a null reference</exception>
public OwlClass(string nodeUri, OwlNode typeNode)
{
if(typeNode == null)
throw(new ArgumentNullException());
ID = nodeUri;
_typeEdge = new OwlEdge(OwlNamespaceCollection.RdfNamespace+"type");
_typeEdge.AttachChildNode(typeNode);
AttachChildEdge(_typeEdge);
}
/// <summary>
/// Visit all the outgoing edges of the node and add them to the parent
/// </summary>
/// <param name="node">The actual node of which we need to visit the edges</param>
/// <param name="parent">The xml representative of the node</param>
public void VisitEdges(OwlNode node, Object parent)
{
OwlEdgeCollection edges = (OwlEdgeCollection)node.ChildEdges;
foreach (OwlEdge e in edges)
{
e.Accept(this, parent);
}
}
/// <summary>
/// This method extracts the reference of the node.
/// </summary>
/// <param name="node">The node from which we want to retrieve the reference</param>
/// <returns>The reference of the node if it has a short reference, or the full uri otherwise</returns>
private string GetNodeReference(OwlNode node)
{
Uri uri = new Uri(node.ID);
string name = uri.ToString();
if (name.StartsWith(_baseUri))
{
name = uri.Fragment;
}
return(name);
}
/// <summary>
/// Initializes a new instance of the OwlRestriction class with the given Uri and TypeNode
/// </summary>
/// <param name="nodeUri">A string representing the Uri of this Resource</param>
/// <param name="typeNode">The OwlNode object to attach to the edge specifying the type. This is usually a node with ID owl:Restriction.</param>
/// <exception cref="ArgumentNullException">typeNode is a null reference</exception>
public OwlRestriction(string nodeUri, OwlNode typeNode)
{
if (typeNode == null)
{
throw(new ArgumentNullException());
}
ID = nodeUri;
_typeEdge = new OwlEdge(OwlNamespaceCollection.RdfNamespace + "type");
_typeEdge.AttachChildNode(typeNode);
AttachChildEdge(_typeEdge);
}
/// <summary>
/// Adds a node to the Graph
/// </summary>
/// <param name="nodeUri">A string representing the URI of the new node.</param>
/// <exception cref="UriFormatException">The specified nodeUri is not a well formed URI.</exception>
/// <returns>An object that implements the IOwlNode interface. This is a reference to the new node added.
/// This method checks the graph to determine whether the node with the specified URI exists.
/// If it does then a reference to the existing node is returned. If it does not exist then a new node is created, added
/// to the graph and returned.</returns>
public IOwlNode AddNode(string nodeUri)
{
IOwlNode node = _nodes[nodeUri];
if (node == null)
{
node = new OwlNode(nodeUri);
_nodes[nodeUri] = node;
}
return(node);
}
/// <summary>
/// Determines whether the specified node is a member of this collection.
/// </summary>
/// <param name="node">An object that implements the IOwlNode interface.</param>
/// <returns>True if a node with the same ID was found in the collection.</returns>
public bool Contains(IOwlNode node)
{
if (node == null)
{
return(false);
}
OwlNode rNode = (OwlNode)_nodes[node.ID];
if (rNode != null)
{
return(rNode == node);
}
return(false);
}
/// <summary>
/// This method extracts the localName of the node
/// </summary>
/// <param name="node">The node from which we want to retrieve the local ID</param>
/// <returns>The local name of the node if it has one, or the full uri otherwise</returns>
private string GetNodeID(OwlNode node)
{
Uri uri = new Uri(node.ID);
string name = uri.ToString();
if (name.StartsWith(_baseUri))
{
name = uri.Fragment;
if (name.Length > 0)
{
name = uri.Fragment.Substring(1, uri.Fragment.Length - 1);
}
}
return(name);
}
private void AddNameAttribute(XmlElement element, OwlNode node)
{
XmlAttribute nameAttribute;
if (_visited.Contains(node))
{
nameAttribute = _owlDocument.CreateAttribute("rdf", "about", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = GetNodeReference(node);
}
else
{
nameAttribute = _owlDocument.CreateAttribute("rdf", "ID", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = GetNodeID(node);
}
element.Attributes.Append(nameAttribute);
}
/// <summary>
/// The general implementation of a regular OwlNode. A node is only of type OwlNode in some special cases.
/// </summary>
/// <param name="node">The actual node to visit</param>
/// <param name="parent">The parent object of the node</param>
public override void Visit(OwlNode node, Object parent)
{
XmlElement parentElement = parent as XmlElement;
if (parentElement != null)
{
// Here we will only visit the blank node, because these are
// the only ones we need. The others are the standard nodes
// representing datatypes or owl, rdf, rdfs predefined nodes.
if (node.IsAnonymous())
{
XmlComment comment = _owlDocument.CreateComment("Visiting a regular node: " + node.GetType());
parentElement.AppendChild(comment);
_visited.Add(node);
}
}
}
/// <summary>
/// Implementation of the visit function to generate some output, used in the visitor pattern
/// </summary>
/// <param name="node">The actual node which needs to be generated</param>
/// <param name="parent">The parent object of the node</param>
public override void Visit(OwlCollection node, Object parent)
{
XmlElement parentElement = parent as XmlElement;
if (parentElement != null)
{
// Set the datatype property on its parent
XmlAttribute nameAttribute = _owlDocument.CreateAttribute("rdf", "parseType", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = "Collection";
parentElement.Attributes.Append(nameAttribute);
IEnumerator e = node.GetEnumerator();
while (e.MoveNext())
{
OwlNode n = (OwlNode)e.Current;
n.Accept(this, parent);
}
}
}
/// <summary>
/// Adds a node to the collection.
/// </summary>
/// <param name="nodeID">The ID of the node to add.</param>
/// <param name="newNode">An object that implements the IOwlNode interface. This is a reference to the node to add.</param>
/// <exception cref="ArgumentException">A node with the specified ID already exists in the collection.</exception>
/// <exception cref="ArgumentNullException">The specified ID is a null reference.</exception>
public void Add(string nodeID, IOwlNode newNode)
{
if (newNode == null)
{
throw (new ArgumentNullException());
}
// Added:
// Check on duplicate keys, if key is already in the dictionary,
// then we don't to anything.
// Why: Error coming from Hano Soma
// Todo: Recheck this if it is correct
OwlNode rNode = (OwlNode)_nodes[nodeID];
if (rNode != null)
{
return;
}
// End
_nodes.Add(nodeID, newNode);
}
/// <summary>
/// Implementation of the visit function to generate some output, used in the visitor pattern
/// </summary>
/// <param name="node">The actual node which needs to be generated</param>
/// <param name="parent">The parent object of the node</param>
public override void Visit(OwlIndividual node, Object parent)
{
XmlElement parentElement = parent as XmlElement;
if (parentElement != null)
{
//string qualifiedName = prefix + ":" + localName;
OwlNode typeNode = (OwlNode)node.Type.ChildNode;
Uri uri = new Uri(typeNode.ID);
// Retrieve the local name from the uri
string localName = uri.Fragment.Substring(1, uri.Fragment.Length - 1);
// Get the path, up to the local name, from the uri
string path = uri.GetLeftPart(UriPartial.Path) + "#";
string prefix = "";
if (path != _baseUri)
{
// Search for the prefix of this individual
int pos = _namespaces[path].IndexOf(':');
if (pos != -1)
{
prefix = _namespaces[path].Substring(++pos);
}
}
string qualifiedName = (prefix.Length != 0) ? (prefix + ":" + localName) : localName;
XmlElement individualElement = _owlDocument.CreateElement(qualifiedName, path);
// Add the name attribute to the node
AddNameAttribute(individualElement, node);
// Generate all the edges going out of this node
if (!_visited.Contains(node))
{
VisitEdges(node, individualElement);
}
// Attach the node eventually to its parent
parentElement.AppendChild(individualElement);
_visited.Add(node);
}
}
/// <summary>
/// This method extracts the reference of the node.
/// </summary>
/// <param name="node">The node from which we want to retrieve the reference</param>
/// <returns>The reference of the node if it has a short reference, or the full uri otherwise</returns>
private string GetNodeReference(OwlNode node)
{
Uri uri = new Uri(node.ID);
string name = uri.ToString();
if(name.StartsWith(_baseUri))
{
name = uri.Fragment;
}
return name;
}
/// <summary>
/// This method extracts the localName of the node
/// </summary>
/// <param name="node">The node from which we want to retrieve the local ID</param>
/// <returns>The local name of the node if it has one, or the full uri otherwise</returns>
private string GetNodeID(OwlNode node)
{
Uri uri = new Uri(node.ID);
string name = uri.ToString();
if(name.StartsWith(_baseUri))
{
name = uri.Fragment;
if(name.Length > 0)
name = uri.Fragment.Substring(1, uri.Fragment.Length-1);
}
return name;
}
private void AddNameAttribute(XmlElement element, OwlNode node)
{
XmlAttribute nameAttribute;
if(node.Visited)
{
nameAttribute = _owlDocument.CreateAttribute("rdf", "about", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = GetNodeReference(node);
}
else
{
nameAttribute = _owlDocument.CreateAttribute("rdf", "ID", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = GetNodeID(node);
}
element.Attributes.Append(nameAttribute);
}
/// <summary>
/// Visit all the outgoing edges of the node and add them to the parent
/// </summary>
/// <param name="node">The actual node of which we need to visit the edges</param>
/// <param name="parent">The xml representative of the node</param>
public void VisitEdges(OwlNode node, Object parent)
{
OwlEdgeCollection edges = (OwlEdgeCollection)node.ChildEdges;
foreach(OwlEdge e in edges)
{
e.Accept(this, parent);
}
}
/// <summary>
/// The general implementation of a regular OwlNode. A node is only of type OwlNode in some special cases.
/// </summary>
/// <param name="node">The actual node to visit</param>
/// <param name="parent">The parent object of the node</param>
public override void Visit(OwlNode node, Object parent)
{
XmlElement parentElement = parent as XmlElement;
if(parentElement != null)
{
// Here we will only visit the blank node, because these are
// the only ones we need. The others are the standard nodes
// representing datatypes or owl, rdf, rdfs predefined nodes.
if(node.IsAnonymous())
{
XmlComment comment = _owlDocument.CreateComment("Visiting a regular node: " + node.GetType());
parentElement.AppendChild(comment);
node.Visited = true;
}
}
}
/// <summary>
/// Implementation of an OwlEdge.
/// </summary>
/// <param name="edge">The actual edge to be visited</param>
/// <param name="parent">The parent object (node) of the edge</param>
public override void Visit(OwlEdge edge, Object parent)
{
XmlElement parentElement = parent as XmlElement;
if (parentElement != null)
{
Uri uri = new Uri(edge.ID);
// Retrieve the local name from the uri
string localName = uri.Fragment.Substring(1, uri.Fragment.Length - 1);
// Get the path, up to the local name, from the uri
string path = uri.GetLeftPart(UriPartial.Path) + "#";
string prefix;
// Check for the namespace of the edge in order to get the correct prefix
if (path == OwlNamespaceCollection.OwlNamespace)
{
prefix = OwlNamespaceCollection.OwlNamespacePrefix;
}
else if (path == OwlNamespaceCollection.RdfNamespace)
{
prefix = OwlNamespaceCollection.RdfNamespacePrefix;
}
else if (path == OwlNamespaceCollection.RdfSchemaNamespace)
{
prefix = OwlNamespaceCollection.RdfSchemaNamespacePrefix;
}
else
{
// If the namespace of the edge is something else, then look for it
prefix = "";
if (path != _baseUri)
{
// Search for the prefix of this individual
int pos = _namespaces[path].IndexOf(':');
if (pos != -1)
{
prefix = _namespaces[path].Substring(++pos);
}
}
}
string qualifiedName = (prefix.Length != 0) ? (prefix + ":" + localName) : localName;
// At this point we will not generate the rdf:type edges.
XmlElement edgeElement = _owlDocument.CreateElement(qualifiedName, path);
// Check to see if the child node is an anonymous one or not. If it is, then further
// process that node, otherwise just reference it by name.
OwlNode node = (OwlNode)edge.ChildNode;
if (node.IsAnonymous() || node.IsLiteral())
{
node.Accept(this, edgeElement);
}
else
{
// Add the name as one of its attributes
XmlAttribute nameAttribute = _owlDocument.CreateAttribute("rdf", "resource", OwlNamespaceCollection.RdfNamespace);
nameAttribute.Value = GetNodeReference(node);
edgeElement.Attributes.Append(nameAttribute);
}
parentElement.AppendChild(edgeElement);
}
}
/// <summary>
/// Parses the rdf:value, rdf:type attributes as well as any attributes not part of the OWL, RDF or XML namespace
/// </summary>
/// <param name="node">The XmlNode on which the attributes appear</param>
/// <param name="rNode">The OwlNode to which the attributes must be applied</param>
private void ParseNodeAttributes(XmlNode node, OwlNode rNode)
{
int count = node.Attributes.Count;
for(int i=0;i<count;i++)
{
XmlAttribute attr = node.Attributes[i];
if(!IsOwlRdfXmlProperty(attr) || (attr.Name=="rdf:type") || (attr.Name == "rdf:value"))
{
if(IsUnqualifiedRdfProperty(node.Attributes[i]))
OnWarning("Unqualified use of rdf:"+node.Attributes[i].LocalName);
//create a new edge
string edgeUri = PrependXmlBase(attr.NamespaceURI+attr.LocalName, GetXmlBase(node));
OwlEdge rEdge = new OwlEdge(edgeUri);
OwlNode childNode = null;
if(attr.Name == "rdf:type")
{
childNode = (OwlNode)_owlGraph.AddNode(PrependXmlBase(attr.Value,GetXmlBase(node)));
}
else
{
childNode = (OwlLiteral)_owlGraph.AddLiteral(attr.Value,rNode.LangID,GetDatatypeUri(node));
}
rNode.AttachChildEdge(rEdge);
rEdge.AttachChildNode(childNode);
//add the new edge to the graph
_owlGraph.AddEdge(rEdge);
}
}
}
/// <summary>
/// Initializes a new instance of the OwlEdge class. Sets the ID, ChildNode and ParentNode properties to null
/// </summary>
public OwlEdge()
{
_edgeID = "";
_childNode = null;
_parentNode = null;
}
/// <summary> /// Implementation of the visit function to generate some output, used in the visitor pattern /// </summary> /// <param name="node">The actual node which needs to be generated</param> /// <param name="parent">The parent object of the node</param> public abstract void Visit(OwlNode node, Object parent);
/// <summary>
/// Adds a node to the Graph
/// </summary>
/// <param name="nodeUri">A string representing the URI of the new node.</param>
/// <exception cref="UriFormatException">The specified nodeUri is not a well formed URI.</exception>
/// <returns>An object that implements the IOwlNode interface. This is a reference to the new node added.
/// This method checks the graph to determine whether the node with the specified URI exists.
/// If it does then a reference to the existing node is returned. If it does not exist then a new node is created, added
/// to the graph and returned.</returns>
public IOwlNode AddNode(string nodeUri)
{
IOwlNode node = _nodes[nodeUri];
if(node == null)
{
node = new OwlNode(nodeUri);
_nodes[nodeUri] = node;
}
return node;
}
/// <summary>
/// Initializes a new instance of the OwlEdge class. Sets the ID, ChildNode and ParentNode properties to null
/// </summary>
public OwlEdge()
{
_edgeID = "";
_childNode = null;
_parentNode = null;
}
/// <summary>
/// Parses the OWL syntax on an edge.
/// </summary>
/// <param name="node">The XML Node representing the OWL edge</param>
/// <param name="rEdge">The edge</param>
/// <param name="parentNode">The parent OWL node</param>
/// <returns>True if the edge was given an ID and attached to the parent node</returns>
private bool ParseEdgeSyntax(XmlNode node, OwlEdge rEdge, OwlNode parentNode)
{
//first get the NameSpace URI, NameSpace prefix and the LocalName for the node
String nameSpaceURI = node.NamespaceURI;
String nameSpacePrefix = node.Prefix;
String localName = node.LocalName;
if(IsNonSyntacticElement(node))
{
rEdge.ID = nameSpaceURI + localName;
if(rEdge.ID == (OwlNamespaceCollection.RdfNamespace + "type"))
{
OwlNode typeNode;
if(rEdge.ChildNode.ID == (OwlNamespaceCollection.OwlNamespace + "DatatypeProperty"))
{
typeNode = (OwlNode)_owlGraph.AddNode(OwlNamespaceCollection.OwlNamespace+"DatatypeProperty");
OwlDatatypeProperty newNode = new OwlDatatypeProperty(parentNode.ID,typeNode);
_owlGraph.AddEdge(newNode.Type);
MoveEdges(parentNode, newNode);
_owlGraph.Nodes.Remove(parentNode);
_owlGraph.AddNode(newNode);
rEdge.AttachParentNode(newNode);
return true;
}
if(rEdge.ChildNode.ID == (OwlNamespaceCollection.OwlNamespace + "ObjectProperty"))
{
typeNode = (OwlNode)_owlGraph.AddNode(OwlNamespaceCollection.OwlNamespace+"ObjectProperty");
OwlObjectProperty newNode = new OwlObjectProperty(parentNode.ID,typeNode);
_owlGraph.AddEdge(newNode.Type);
MoveEdges(parentNode, newNode);
_owlGraph.Nodes.Remove(parentNode);
_owlGraph.AddNode(newNode);
rEdge.AttachParentNode(newNode);
return true;
}
}
rEdge.AttachParentNode(parentNode);
return true;
}
if(IsSyntacticElement(node))
{
OnError("Cannot use " + node.Name + " as a property element");
return false;
}
// It is an instance of a property
rEdge.ID = nameSpaceURI + localName;
rEdge.AttachParentNode(parentNode);
return true;
// OnWarning("Unknown property element "+ node.Name);
// return false;
}
/// <summary>
/// Initializes a new instance of the OwlEdge class with the given URI
/// </summary>
/// <param name="edgeUri">A string representing the Uri of this edge. The ChildNode and ParentNode properties are set to null</param>
/// <exception cref="UriFormatException">The specified edgeUri was not a well formed URI</exception>
public OwlEdge(string edgeUri)
{
Uri u = new Uri(edgeUri);
_edgeID = edgeUri;
_childNode = null;
_parentNode = null;
}
/// <summary>
/// Moves all the edges associated with the source node to the destination node
/// </summary>
/// <param name="srcNode">The node from which the edges are to be moved.</param>
/// <param name="destNode">The node to which the edges are to be moved</param>
/// <remarks>This method moves all the edges from the src node to the dest node.
/// The src node is not removed from the graph. </remarks>
private void MoveEdges(OwlNode srcNode, OwlNode destNode)
{
try
{
foreach(IOwlEdge parentEdge in srcNode.ParentEdges)
{
parentEdge.AttachChildNode(destNode);
}
foreach(IOwlEdge childEdge in srcNode.ChildEdges)
{
childEdge.AttachParentNode(destNode);
}
}
catch
{
// sometimes an error is thrown saying that the collection is being modified
// during the transfer. If this happens, just redo the transfer
MoveEdges(srcNode, destNode);
}
}
/// <summary> /// Implementation of the visit function to generate some output, used in the visitor pattern /// </summary> /// <param name="node">The actual node which needs to be generated</param> /// <param name="parent">The parent object of the node</param> public abstract void Visit(OwlNode node, Object parent);
