examples/org.eclipse.epsilon.examples.workflow.flowchart/programs/choose_path.eol

// Create an empty path
var path = new FlowchartPath!Path;

// Find the start node
var start : Flowchart!Node = Flowchart!Node.all.selectOne(n|n.isStart());
var current : Flowchart!Node = start;

// Walk through the flowchart until we reach a final state
while (not current.isFinal()) {
	// Create a stop on the path for this node
	var stop = new FlowchartPath!Stop;
	stop.label = current.type.name + " " + current.name;
	path.stops.add(stop);
	
	// Select an outgoing transition at random
	var chosenTransition = current.outgoing.random();

	// Continue with the node from the chosen outgoing transition
	current = chosenTransition.target;
}

operation Flowchart!Node isStart() : Boolean {
	return self.incoming.isEmpty(); 
}

operation Flowchart!Node isFinal() : Boolean {
	return self.outgoing.isEmpty();
}