public void parseInput(String file, int threads, int limit)
throws FileNotFoundException, InterruptedException {
// long startParseTime = System.currentTimeMillis();
m_jgAdapter = new JGraphModelAdapter<Position, DefaultEdge>(graph);
jgraph = new JGraph(m_jgAdapter);
this.threads = threads;
Scanner input = new Scanner(new File(file));
try {
for (int r = 0; input.hasNextLine() && r < limit; r++) {
Scanner line = new Scanner(input.nextLine());
try {
ArrayList<Position> row = new ArrayList<Position>();
grid.add(row);
System.out.println("Row " + r);
for (int c = 0; line.hasNextInt() && c < limit; c++) {
Position position = new Position(r, c, line.nextInt());
row.add(position);
graph.addVertex(position);
positionVertexAt(position, position.column * 5, position.row * 5);
}
} finally {
line.close();
}
}
} finally {
input.close();
}
graphGrid(grid);
// ArrayList<ArrayList<Position>> grid2 = transpose(grid);
// outputGrid(grid2);
}
private void findEdges(int startRow, int endRow) {
int gridSize = grid.size();
int sizeOfArrays = grid.get(0).size();
for (int i = startRow; i < endRow; i++) {
for (int j = 0; j < sizeOfArrays; j++) {
Position currentPosition = grid.get(i).get(j);
int current = currentPosition.value;
int min = current;
Position minP = currentPosition;
if (i - 1 >= 0) {
Position north = grid.get(i - 1).get(j);
if (north.value < min) {
min = north.value;
minP = north;
}
}
if (i - 1 >= 0 && j - 1 >= 0) {
Position northWest = grid.get(i - 1).get(j - 1);
if (northWest.value < min) {
min = northWest.value;
minP = northWest;
}
}
if (j - 1 >= 0) {
Position west = grid.get(i).get(j - 1);
if (west.value < min) {
min = west.value;
minP = west;
}
}
if (i + 1 < gridSize && j - 1 >= 0) {
Position southWest = grid.get(i + 1).get(j - 1);
if (southWest.value < min) {
min = southWest.value;
minP = southWest;
}
}
if (i + 1 < gridSize) {
Position south = grid.get(i + 1).get(j);
if (south.value < min) {
min = south.value;
minP = south;
}
}
if (i + 1 < gridSize && j + 1 < sizeOfArrays) {
Position southEast = grid.get(i + 1).get(j + 1);
if (southEast.value < min) {
min = southEast.value;
minP = southEast;
}
}
if (j + 1 < sizeOfArrays) {
Position east = grid.get(i).get(j + 1);
if (east.value < min) {
min = east.value;
minP = east;
}
}
if (i - 1 >= 0 && j + 1 < sizeOfArrays) {
Position northEast = grid.get(i - 1).get(j + 1);
if (northEast.value < min) {
min = northEast.value;
minP = northEast;
}
}
if (currentPosition.equals(minP)) {
} else {
synchronized (graph) {
graph.addEdge(currentPosition, minP);
}
}
}
}
}