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/**
* Copyright (C) 2010 Jorge J. Gomez-Sanz over original code from Ruben Fuentes
*
*
* This file is part of the INGENME tool. INGENME is an open source meta-editor
* which produces customized editors for user-defined modeling languages
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation version 3 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
**/
package ingenias.editor.cell;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.Vector;
import org.jgraph.graph.*;
import ingenias.editor.entities.*;
public class WFEndsEdge extends NAryEdge {
// Constructor with data content
public WFEndsEdge(ingenias.editor.entities.WFEnds userObject) {
super(userObject);
this.addRole("WFEndssource");
this.setArity("WFEndssource",true,1);
this.setArity("WFEndssource",false,1);
this.addClass("WFEndssource","ingenias.editor.entities.ActionUML");
this.addClass("WFEndssource","ingenias.editor.entities.InitialNode");
this.addClass("WFEndssource","ingenias.editor.entities.JoinNode");
this.addClass("WFEndssource","ingenias.editor.entities.MergeNode");
this.addClass("WFEndssource","ingenias.editor.entities.ForkNode");
this.addClass("WFEndssource","ingenias.editor.entities.Task");
this.addClass("WFEndssource","ingenias.editor.entities.InitialNode");
this.addRole("WFEndstarget");
this.setArity("WFEndstarget",true,1);
this.setArity("WFEndstarget",false,1);
this.addClass("WFEndstarget","ingenias.editor.entities.EndNode");
// Add ports for every role.
// Roles are obtained from the static roleData.
Iterator it = this.getRoles().iterator();
while ( it.hasNext() ) {
this.add( new DefaultPort( (String) it.next() ) );
}
}
// Connection logic.
// The connection is acceptable if there is a role assignation to selected classes
// considering, if they exists, classes already included in the relationship.
// It works with connecting and disconnecting edges. Therefore, both target
// and source cells could be null.
// source is the first selected node and targets are the other.
// Both source and targets are Vertex.
// Connects an Agent with a Goal or an Agent with a Goal and a Fact.
public static boolean acceptConnection(GraphModel model, GraphCell[] selected) {
// Search for NAryEdges in selected. There is 0 or 1.
int nAryEdgesNum = 0;
int edgesNum = 0;
NAryEdge selectedEdge = null;
for (int i = 0; i < selected.length; i++)
if (selected[i] instanceof NAryEdge) {
nAryEdgesNum++;
selectedEdge = (NAryEdge) selected[i];
} else if (selected[i] instanceof DefaultEdge)
edgesNum++;
// Some obvious error situations.
if (nAryEdgesNum > 1 || edgesNum > 0 ||
!((selectedEdge == null) || (selectedEdge instanceof WFEndsEdge)))
return false;
// n-edge to be considered.
WFEndsEdge edge = new WFEndsEdge( null);
// If the connection involves an existing n-edge its assignations has to be considered.
if (nAryEdgesNum == 1 && selectedEdge instanceof WFEndsEdge)
edge = (WFEndsEdge) selectedEdge;
GraphCell[] newSelected = edge.prepareSelected(selected);
return (edge.assignRoles(newSelected, false).size() > 0);
}
// Connection logic.
// The deletion is acceptable if the resulting relationship is valid.
// selected are the nodes to removed.
public boolean acceptRemove(GraphCell[] selected) {
// All roles considered in the relationship.
List roles = this.getOrderedRoles();
// Valid deletion.
boolean ok = true;
// Check all roles.
for (int i = 0; i < roles.size(); i++) {
String roleName = (String) roles.get(i);
Integer minAllowedTimes = this.getArity(roleName, true);
Integer maxAllowedTimes = this.getArity(roleName, false);
// Objects playing roleName in this relationship.
GraphCell[] roleObjects = this.getObjects(roleName);
// newUse is roleObjects number minus those objects in selected (which will be removed).
int currentUse = roleObjects.length;
for (int j = 0; j < roleObjects.length; j++)
for (int k = 0; k < selected.length; k++) {
// Object to be compared with roleObjects.
Object object = null;
// Default Edge.
if (selected[k] instanceof DefaultEdge) {
DefaultPort targetPort = (DefaultPort) ( (DefaultEdge) selected[k] ).getTarget();
object = targetPort.getParent();
// Vertex
} else if ( (selected[k] instanceof DefaultGraphCell) &&
!(selected[k] instanceof DefaultPort) ) {
object = selected[k];
}
// If the object is in the deleted list, there is one less object playing the role.
if ( roleObjects[j].equals(object) )
currentUse--;
}
// Check the role for the deletion.
ok = ok && (minAllowedTimes.intValue() <= currentUse) &&
(currentUse <= maxAllowedTimes.intValue());
}
return ok;
}
// Is a list of possible assignations (List) where each assignation
// is a list (List) of roles (String).
public List assignRoles(GraphCell[] selectedNodes, boolean allSolutions) {
// Container for all possible solutions.
Vector results = new Vector();
// A specific solution, that is, assignation roles-entities.
// It has the name of the roles assigned to objects in selectedNodes, that is,
// the role of selectedNodes[i] in this solution is solution.get(i).
Vector solution = new Vector();
// All roles considered in the relationship.
List roles = this.getOrderedRoles();
// The goal is to give classes an assignation to roles that makes a solution.
// Iterate over nodes to assign.
int nodesIndex = 0;
String nodeClass = selectedNodes[nodesIndex].getClass().getName();
Class nodeClassc = ( (DefaultGraphCell) selectedNodes[nodesIndex] ).getUserObject().getClass();
// Initial capacity for first node.
solution.add(nodesIndex, null);
// First role.
int rolesIndex = this.nextRole(roles, solution, nodesIndex).intValue();
while ((0 <= nodesIndex) && (allSolutions || results.size() == 0)) {
boolean roleOK = false;
String roleName = null;//////////
while (rolesIndex < roles.size() && !roleOK) {
// The assignation role-class is checked.
// The role can be assigned if the current arity is less than
// the maximun allowed and the object class can play the role.
roleName = (String) roles.get(rolesIndex);
if (this.checkAssignation((List) solution, roleName, nodeClassc))
roleOK = true;
else
rolesIndex++;
}
// If a role assignation was founded for current node.
if (roleOK && roleName != null) {
// The position for the role of nodesIndex is already created. Update the role.
solution.set(nodesIndex, roleName);
// Check if there is a solution and add.
if (checkSolution(selectedNodes, (List) solution)) {
Vector solutionToAdd = new Vector();
for (int i = 0; i < solution.size(); i++)
solutionToAdd.add((String) solution.get(i));
results.add(solutionToAdd);
}
// There are nodes to be assigned.
if (solution.size() < selectedNodes.length) {
nodesIndex++;
solution.add(nodesIndex, null);
}
} else {
// For the current node, possible role assignations has been exhausted.
// Backtracking is done.
solution.remove(nodesIndex);
nodesIndex--;
}
// If it is not the end.
if (nodesIndex >= 0) {
// Class information for node.
nodeClass = selectedNodes[nodesIndex].getClass().getName();
nodeClassc = ( (DefaultGraphCell) selectedNodes[nodesIndex] ).getUserObject().getClass();
// Assign a new role to the node.
rolesIndex = this.nextRole(roles, solution, nodesIndex).intValue();
}
}
return results;
}
// Returns a DefaultEdge[] related with this n-edge.
// In selected there can be 0 or 1 n-edge. If there is one is the object itself.
public DefaultEdge[] connectionsEdges(GraphCell[] selected, String[] roles) {
// Temporal container for edges that will be inserted into the Model.
Vector edges = new Vector();
// Create connections between related objects using this n-edge.
for (int i = 0; i < selected.length; i++)
if ( ! (selected[i] instanceof DefaultEdge ||
selected[i] instanceof NAryEdge ||
selected[i] instanceof DefaultPort) ){
if (roles[i].equalsIgnoreCase("WFEndssource")){
edges.add( new DefaultEdge( new WFEndssourceRole() ) );
}
if (roles[i].equalsIgnoreCase("WFEndstarget")){
edges.add( new DefaultEdge( new WFEndstargetRole() ) );
}
}
DefaultEdge[] edgesSet = new DefaultEdge[edges.size()];
for (int i = 0; i < edges.size(); i++)
edgesSet[i] = (DefaultEdge) edges.get(i);
return edgesSet;
}
// Gives the index of the next role to be assigned to currentNode according to currentSolution.
private Integer nextRole(List relationshipRoles, List currentSolution, int currentNode) {
int rolesIndex;
int kk = currentSolution.size();//////////
if (currentSolution.get(currentNode) == null) ////////// solution.get(nodeClass) == null)
rolesIndex = 0;
// If it was in the solution, try the following role.
else {
rolesIndex = 0;
String previousRole = (String) currentSolution.get(currentNode);
for (int i = 0; i < relationshipRoles.size(); i++)
if (previousRole.equals(relationshipRoles.get(i)))
rolesIndex = i;
rolesIndex++;
}
return (new Integer(rolesIndex));
}
}
