public void run() {
// TODO Auto-generated method stub
run = true;
System.out.println("Running a map");
while (run) {
// Figure out how to read input file
// Evaluate it
Map<String, List<String>> input = reader.getKeyValuePairs();
if (input == null) {
map.setStatus(-1);
Message msg = new Message();
msg.setTask(map);
msg.setType('f');
coord.conn.sendMessage(msg);
return;
}
OutputCollector<String, String> collect = new OutputCollector<String, String>();
Set<String> keySet = input.keySet();
for (String key : keySet) {
List<String> values = input.get(key);
for (String value : values) {
map.getJob().map(key, value, collect);
}
}
List<Pair> results = collect.getResults();
int length = results.size();
FileOutputStream out;
try {
System.out.println("Trying to Write to File");
out = new FileOutputStream(new File(map.getOutput().get(0)));
BufferedWriter dw = new BufferedWriter(new OutputStreamWriter(out));
for (Pair p : results) {
dw.append(p.toString());
dw.newLine();
}
dw.newLine();
dw.flush();
dw.close();
out.close();
coord.dataNode.addFileToDFS(map.getOutput().get(0), coord.conn.port, false);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
map.setStatus(-1);
Message msg = new Message();
msg.setTask(map);
msg.setType('f');
coord.conn.sendMessage(msg);
return;
}
map.setStatus(1);
Message msg = new Message();
msg.setTask(map);
msg.setType('f');
coord.conn.sendMessage(msg);
break;
}
}
public Pair<Integer, Integer> bottomGuy(Pair<Integer, Integer> CurrentLoc) {
Pair<Integer, Integer> ret = new Pair<Integer, Integer>(-1, -1);
if (CurrentLoc._o2 == 0) {
ret._o2 = 0;
} else {
ret._o2 = CurrentLoc._o2 - 1;
}
ret._o1 = CurrentLoc._o1;
return ret;
}
public Pair<Integer, Integer> topGuy(Pair<Integer, Integer> CurrentLoc) {
Pair<Integer, Integer> ret = new Pair<Integer, Integer>(-1, -1);
if (CurrentLoc._o2 == _nSize - 1) {
ret._o2 = _nSize - 1;
} else {
ret._o2 = CurrentLoc._o2 + 1;
}
ret._o1 = CurrentLoc._o1;
return ret;
}
/**
* @param pCurrentLoc
* @return
*/
public Pair<Integer, Integer> leftGuy(Pair<Integer, Integer> CurrentLoc) {
Pair<Integer, Integer> ret = new Pair<Integer, Integer>(-1, -1);
if (CurrentLoc._o1 == 0) {
ret._o1 = 0;
} else {
ret._o1 = CurrentLoc._o1 - 1;
}
ret._o2 = CurrentLoc._o2;
return ret;
}
/**
* Test whether the pair returns the correct string relating to the values of its first and second
* values.
*/
@Test
public void testString() {
Pair<Double> testPair = new Pair<Double>(testFirst, testSecond);
assertEquals(testString, testPair.toString());
}
/** Test whether the second item in the pair returns the correct value */
@Test
public void testSecond() {
Pair<Double> testPair = new Pair<Double>(testFirst, testSecond);
assertEquals(testSecond, testPair.second());
}
@Override
public Solution preprocess(Solution sol, boolean verbose) {
List<Integer> good = new ArrayList<Integer>(sol.size());
List<Integer> wrong = new ArrayList<Integer>();
if (verbose == true) {
System.out.print("Preprocessing ... ");
}
// Etape 1 : les reines dispatchee dans good et wrong
good.add(sol.get(0));
// On tente ensuite d'ajouter la reine suivante de la solution initiale
// dans la liste Good. Si elle genere un conflit, elle est retiree
// et placee dans la liste Wrong
for (int i = 1; i < sol.size(); ++i) {
good.add(sol.get(i));
Solution s = new Solution(good);
if (s.cost() != 0) {
good.remove(good.size() - 1);
wrong.add(sol.get(i));
}
}
// Liste contenant pour chaque reine de wrong la liste
// positions possibles avec leur cout
List<List<Pair<Integer, Integer>>> pouet = new ArrayList<List<Pair<Integer, Integer>>>();
// Liste des positions d'une reine de wrong avec leur cout
List<Pair<Integer, Integer>> meuh;
boolean addition;
int idxWrong;
while (wrong.isEmpty() == false) {
idxWrong = 0;
addition = false;
pouet.clear();
while (idxWrong < wrong.size() && (addition == false)) {
meuh = new ArrayList<Pair<Integer, Integer>>();
for (int idxGood = 0; (idxGood <= good.size()) && (addition == false); ++idxGood) {
good.add(idxGood, wrong.get(idxWrong));
Solution s = new Solution(good);
if (s.cost() == 0) {
addition = true;
} else {
meuh.add(new Pair<Integer, Integer>(idxGood, s.cost()));
good.remove(idxGood);
}
}
if (addition == false) {
pouet.add(meuh);
++idxWrong;
} else {
wrong.remove(idxWrong);
}
}
if (addition == false) {
int minCost = Integer.MAX_VALUE;
Pair<Integer, Integer> posMin = null;
int cost = 0;
for (int idxPouet = 0; idxPouet < pouet.size(); ++idxPouet) {
List<Pair<Integer, Integer>> l = pouet.get(idxPouet);
for (int idxMeuh = 0; idxMeuh < l.size(); ++idxMeuh) {
cost = l.get(idxMeuh).getSecond();
if (cost < minCost) {
minCost = cost;
posMin = new Pair<Integer, Integer>(idxPouet, idxMeuh);
}
}
}
if (posMin != null) {
good.add(
pouet.get(posMin.getFirst()).get(posMin.getSecond()).getFirst(),
wrong.get(posMin.getFirst()));
int index = posMin.getFirst();
wrong.remove(index);
}
}
}
if (verbose == true) {
System.out.println("done");
}
return new Solution(good);
}