private static void runUDFS(final Graph g, Integer n, LinkedHashSet pre) {
Queue q = new LinkedList();
Node nd;
Integer nodeRow;
Integer nodeNumber;
Edge edg;
Node nd2;
q.add(new Integer(n.intValue()));
while (!q.isEmpty()) {
nodeRow = new Integer(((Integer) q.poll()).intValue());
if (!pre.contains(nodeRow)) {
nd = g.getNode(nodeRow.intValue());
pre.add(nodeRow);
for (Iterator it = nd.edges(); it.hasNext(); ) {
edg = (Edge) it.next();
nd2 = edg.getTargetNode();
nodeNumber = new Integer(nd2.getRow());
if (!pre.contains(nodeNumber)) q.add(nodeNumber);
nd2 = edg.getSourceNode();
nodeNumber = new Integer(nd2.getRow());
if (!pre.contains(nodeNumber)) q.add(nodeNumber);
}
}
}
nodeRow = null;
nodeNumber = null;
q = null;
edg = null;
nd2 = null;
}
@Before
public void setUp() {
m_vis = new Visualization();
m_t = TableTest.getTestCaseTable();
m_g = GraphTest.getTestCaseGraph();
m_t0 = m_t.getTuple(0);
m_n0 = m_g.getNode(0);
VisualTable vt = (VisualTable) m_vis.add("t", m_t);
VisualGraph vg = (VisualGraph) m_vis.add("g", m_g);
m_vt0 = vt.getItem(0);
m_vn0 = (NodeItem) vg.getNode(0);
TupleSet ts = m_vis.getFocusGroup(Visualization.FOCUS_ITEMS);
ts.addTuple(m_vt0);
ts.addTuple(m_vn0);
}
private static void runDDFS(final Graph g, Integer n, LinkedHashSet nodeSet, boolean isPreOrder) {
boolean done = false;
Node nd;
Node nd2;
Integer nodeRow;
Integer nodeNumber;
Stack nodeStack = new Stack();
nodeStack.add(new Integer(n.intValue()));
while (!nodeStack.isEmpty()) {
nodeRow = (Integer) nodeStack.peek();
nd = g.getNode(nodeRow.intValue());
if (!nodeSet.contains(nodeRow)) {
if (isPreOrder) nodeSet.add(nodeRow);
nodeSet.add(nodeRow);
}
done = true;
for (Iterator it = nd.outNeighbors(); it.hasNext(); ) {
nd2 = ((Node) it.next());
nodeNumber = new Integer(nd2.getRow());
if (!nodeSet.contains(nodeNumber)) {
nodeStack.add(nodeNumber);
done = false;
break;
}
}
if (done) {
if (!isPreOrder) nodeSet.add(nodeRow);
nodeStack.pop();
}
}
nodeStack = null;
nd = null;
nd2 = null;
nodeRow = null;
nodeNumber = null;
}
private Node getNode(int no) {
Node node = graph.getNode(no);
return node;
}
