// Responsible for loading the number of lines per node
// Receives a line delimited tokenizer. It will only process one line of
// that tokenizer. It must read that line, create a space/tab delimited
// tokenizer from it, grab the number of lines per node from that tokenizer.
// Structures that can contain additional information following the number
// of lines per node (such as trees) should then override this generic
// loadLinesPerNodeInfo with their own version of the method which will call
// on the super version to get the actual lines per node and add additional
// code to process the other information
public void loadLinesPerNodeInfo(StringTokenizer st, LinkedList llist, draw d)
throws VisualizerLoadException {
String tempString, tempString2;
if (st.hasMoreTokens()) tempString = st.nextToken();
else throw (new VisualizerLoadException("Expected lines per node - found end of string"));
StringTokenizer t = new StringTokenizer(tempString, " \t");
if (t.hasMoreTokens()) tempString2 = t.nextToken();
else throw (new VisualizerLoadException("Expected lines per node - found " + tempString));
linespernode = Format.atoi(tempString2);
xspacing = 1.5;
yspacing = 1.5;
if (t.hasMoreTokens()) tempString2 = t.nextToken();
else return;
xspacing = Format.atof(tempString2);
if (t.hasMoreTokens()) tempString2 = t.nextToken();
else return;
yspacing = Format.atof(tempString2);
}
public GTN getGTNode(StringTokenizer st, String s, int linesPerNode, LinkedList llist, draw d)
throws EndOfSnapException, VisualizerLoadException {
GTN gtn = new GTN();
if (s.equals("-1")) throw (new EndOfSnapException("End of Snap Shot Reached"));
gtn.Glevel = Format.atoi(s);
gtn.textInNode = getTextNode(st, linesPerNode, llist, d);
return (gtn);
}
public void loadStructure(StringTokenizer st, LinkedList llist, draw d)
throws VisualizerLoadException {
String s;
GTN gtn = new GTN();
Dne = false; // For handling EOSS in the recursive procedure *)
s = st.nextToken();
if (!(st.hasMoreTokens()))
throw (new VisualizerLoadException(
"Encountered Bad Data When Expecting number of total nodes"));
nn = Format.atoi(s);
numNodes = nn;
s = st.nextToken();
if (!(st.hasMoreTokens()))
throw (new VisualizerLoadException(
"Encountered Bad Data When Expecting number of total nodes"));
path = Format.atoi(s);
s = st.nextToken();
if (!(st.hasMoreTokens()))
throw (new VisualizerLoadException(
"Encountered Bad Data When Expecting number of total nodes"));
weight = Format.atoi(s);
s = st.nextToken();
if (!(st.hasMoreTokens()))
throw (new VisualizerLoadException(
"Encountered Bad Data When Expecting number of total nodes"));
badCommand = Format.atoi(s);
s = st.nextToken();
if (!(s.equals(newTree)))
throw (new VisualizerLoadException("Encountered Bad Data When Expecting New Tree Delimeter"));
while (!Dne && numNodes > 0) {
if (st.hasMoreTokens()) s = st.nextToken();
else s = "-1";
try {
gtn = getGTNode(st, s, linespernode, llist, d);
numNodes--;
} catch (EndOfSnapException e) {
Dne = true;
}
if (!Dne) {
buildGeneralTree(st, gtn, llist, d); // Build Tree *)
nodelist.append(gtn);
Dne = false;
}
}
// loop that gets the final info values from the file
for (int x = 0; x < 4; x++) {
if (st.hasMoreTokens()) s = st.nextToken();
else throw (new VisualizerLoadException("End of data when expecting info"));
if (x == 0) cpf = s;
else if (x == 1) cpu = s;
else if (x == 2) command = s;
}
}