/**
* Parses a Genie Network from an inputstream pointing to an XDSL file
*
* @param inputStream
* @throws SAXException
* @throws ParserConfigurationException
* @throws IOException
*/
private void parseNetworkFromXDSL(InputStream inputStream)
throws SAXException, ParserConfigurationException, IOException {
// get a SAX parser factory
SAXParserFactory spf = SAXParserFactory.newInstance();
// get a new instance of parser
SAXParser sp = spf.newSAXParser();
// Parses the file (this method blocks until parsing is complete)
sp.parse(inputStream, this);
System.out.println("Parsed Genie file and completed Network setup.");
Iterator i = searchSpace.getNodeIterator();
while (i.hasNext()) {
BayesNode temp = (BayesNode) i.next();
System.out.println("Node " + temp.label);
Matrix matrix = temp.getMatrix();
matrix.print(3, 6);
}
}
@Override
public void endElement(String uri, String localName, String qName) throws SAXException {
// Do nothing when we've finished reading an XML tag element
// if(qName.equalsIgnoreCase("href")) {
// //Save Href link, and replace "&" with "&"
// //href = temp.replace("&", "&");
// href = temp;
// }
// When we reache the end of the 'cpt' element, we have all the information for one node
if (qName.equalsIgnoreCase("cpt")) {
// Create a node based on the currently saved information
System.out.println("----------------------");
System.out.println(nodeName + " node is being created...");
// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomX = rand.nextInt(max - min + 1) + min;
int randomY = rand.nextInt(max - min + 1) + min;
// Create new node with parsed information (label, x, y)
BayesNode newNode = new BayesNode(nodeName, randomX, randomY);
LinkXY link = null;
// Convert probabilities to Matrix
System.out.println("Node probabilities: " + probabilities.toString().trim());
String parsedProb[] = probabilities.toString().trim().split(" ");
double numProb[] = new double[parsedProb.length];
// System.out.println("Parsed probs:");
for (int i = 0; i < parsedProb.length; i++) {
// System.out.println(Double.valueOf(parsedProb[i]));
numProb[i] = Double.valueOf(parsedProb[i]);
}
Matrix matrix = new Matrix(numProb, rowCount);
newNode.setMatrix(matrix);
// System.out.println("Row Names (total of " + rowCount + "):");
// Iterator iterator = rowNames.iterator();
// while(iterator.hasNext())
// System.out.println(iterator.next().toString());
newNode.setRowNames((ArrayList) rowNames.clone());
// Gets parents of this new node
if (parents.length() != 0) {
System.out.println("Parents = " + parents.toString().trim());
String parsedParents[] = parents.toString().trim().split(" ");
for (int i = 0; i < parsedParents.length; i++) {
if (!parsedParents[i].trim().equals("")) {
// System.out.println(parsedParents[i]);
// Since parents should always proceed children in teh XDSL file, the below line should
// always return a node
BayesNode parentNode = (BayesNode) searchSpace.findNode(parsedParents[i]);
newNode.addConnToParent(parentNode); // Connect new node to parent
parentNode.addConnToChild(newNode); // Connect parent to new node
// Create link for drawing the graph
link = new LinkXY(parentNode, newNode);
}
}
} else {
System.out.println("No parents for " + newNode.label);
}
// Add new node to search space list
searchSpace.add(newNode);
if (link != null) {
searchSpace.add(link);
}
// Reset row count
rowCount = 0;
rowNames.clear();
// Reset parents
parents.setLength(0);
}
// System.out.println("endElement: " + uri + ", " + localName + ", " + qName);
}