public void execute() {
SimpleActivityNode nodeConvert = (SimpleActivityNode) node;
if (PetriNet.getNewBegin() == null && newLabel.toLowerCase().equals("begin")) {
this.oldLabel = node.getLabel();
node.setLabel(newLabel);
PetriNet.setOldBegin(PetriNet.getNewBegin());
PetriNet.setNewBegin(nodeConvert);
Marking initialMarking = Atid.getRoot().getCurrentMarking();
Atid.getRoot()
.getUndoManager()
.executeCommand(new AddTokenCommand(nodeConvert, initialMarking));
} else if (PetriNet.getNewBegin() != null && newLabel.toLowerCase().equals("begin")) {
JOptionPane.showMessageDialog(null, "There is already a 'begin 'activity on the network.");
} else if (node == PetriNet.getNewBegin() && !newLabel.toLowerCase().equals("begin")) {
PetriNet.setNewBegin(null);
Marking initialMarking = Atid.getRoot().getCurrentMarking();
Atid.getRoot()
.getUndoManager()
.executeCommand(new RemoveTokenCommand(nodeConvert, initialMarking));
this.oldLabel = node.getLabel();
node.setLabel(newLabel);
} else if (!newLabel.toLowerCase().equals("begin")) {
this.oldLabel = node.getLabel();
node.setLabel(newLabel);
}
}
public void undo() {
SimpleActivityNode nodeConvert = (SimpleActivityNode) node;
if (nodeConvert == PetriNet.getNewBegin()) {
PetriNet.setNewBegin(PetriNet.getOldBegin());
node.setLabel(oldLabel);
} else {
node.setLabel(oldLabel);
}
}