/** Selects on sockets and informs their Communicator when there is something to do. */
public void communicate(int timeout) {
try {
selector.select(timeout);
} catch (IOException e) {
// Not really sure why/when this happens yet
return;
}
Iterator<SelectionKey> keys = selector.selectedKeys().iterator();
while (keys.hasNext()) {
SelectionKey key = keys.next();
keys.remove();
if (!key.isValid()) continue; // WHY
Communicator communicator = (Communicator) key.attachment();
if (key.isReadable()) communicator.onReadable();
if (key.isWritable()) communicator.onWritable();
if (key.isAcceptable()) communicator.onAcceptable();
}
// Go through the queue and handle each communicator
while (!queue.isEmpty()) {
Communicator c = queue.poll();
c.onMemo();
}
}
public static void main(String[] args) {
Date start = new Date();
if (args.length < 3) {
System.out.println("Wrong number of arguments:\n" + USAGE);
return;
}
// get # threads
int tc = Integer.parseInt(args[0]);
String outfile = args[1];
// make a threadsafe queue of all files to process
ConcurrentLinkedQueue<String> files = new ConcurrentLinkedQueue<String>();
for (int i = 2; i < args.length; i++) {
files.add(args[i]);
}
// hastable for results
Hashtable<String, Integer> results = new Hashtable<String, Integer>(HASH_SIZE, LF);
// spin up the threads
Thread[] workers = new Thread[tc];
for (int i = 0; i < tc; i++) {
workers[i] = new Worker(files, results);
workers[i].start();
}
// wait for them to finish
try {
for (int i = 0; i < tc; i++) {
workers[i].join();
}
} catch (Exception e) {
System.out.println("Caught Exception: " + e.getMessage());
}
// terminal output
Date end = new Date();
System.out.println(end.getTime() - start.getTime() + " total milliseconds");
System.out.println(results.size() + " unique words");
// sort results for easy comparison/verification
List<Map.Entry<String, Integer>> sorted_results =
new ArrayList<Map.Entry<String, Integer>>(results.entrySet());
Collections.sort(sorted_results, new KeyComp());
// file output
try {
PrintStream out = new PrintStream(outfile);
for (int i = 0; i < sorted_results.size(); i++) {
out.println(sorted_results.get(i).getKey() + "\t" + sorted_results.get(i).getValue());
}
} catch (Exception e) {
System.out.println("Caught Exception: " + e.getMessage());
}
}
public void markForDeletion(File file) {
TempFile tempFile = deleteMap.get(file.getPath());
if (tempFile != null) {
deleteQueue.remove(tempFile);
deleteMap.remove(tempFile);
} else {
tempFile = new TempFile(file);
deleteQueue.add(new TempFile(file));
deleteMap.put(tempFile.getFile().getPath(), tempFile);
file.deleteOnExit(); // just in case
}
}
public void run() {
Thread.currentThread().setName("deleteHelper");
if (deleteQueue.size() > 0) {
TempFile temp = deleteQueue.peek();
if (temp != null && temp.getOld()) {
logger.debug(
"removing temporary file {tempfile='" + temp.getFile().getAbsolutePath() + "'}");
deleteQueue.poll();
deleteMap.remove(temp);
try {
temp.getFile().delete();
} catch (Exception e) {
}
}
}
}
public void run() {
// each file is processed into a local hash table and then merged with the global results
// this will cause much less contention on the global table, but still avoids a sequential
// update
Hashtable<String, Integer> local_results =
new Hashtable<String, Integer>(WordCountJ.HASH_SIZE, WordCountJ.LF);
// grab a file to work on
String cf;
while ((cf = files.poll()) != null) {
try {
BufferedReader input = new BufferedReader(new FileReader(cf));
String text;
// well go line-by-line... maybe this is not the fastest
while ((text = input.readLine()) != null) {
// parse words
Matcher matcher = pattern.matcher(text);
while (matcher.find()) {
String word = matcher.group(1);
if (local_results.containsKey(word)) {
local_results.put(word, 1 + local_results.get(word));
} else {
local_results.put(word, 1);
}
}
}
input.close();
} catch (Exception e) {
System.out.println(" caught a " + e.getClass() + "\n with message: " + e.getMessage());
return;
}
// merge local hashmap with shared one,could have a
// seperate thread do this but that might be cheating
Iterator<Map.Entry<String, Integer>> updates = local_results.entrySet().iterator();
while (updates.hasNext()) {
Map.Entry<String, Integer> kv = updates.next();
String k = kv.getKey();
Integer v = kv.getValue();
synchronized (results) {
if (results.containsKey(k)) {
results.put(k, v + results.get(k));
} else {
results.put(k, v);
}
}
}
local_results.clear();
}
}
public void handleNotification(INotification notification) {
// Logger.debug("@ClientMediator.handleNotification:noti="+notification.getBody());
String noname = notification.getName();
if (noname == Const.TICK) {
if (destroyd) return;
long t = TimerCmd.timeStamp;
String[] ary;
int st, ed;
if (_lastRotTank != null) {
ary = _lastRotTank.split(" ");
st = Integer.parseInt(ary[0]);
ed = st + Integer.parseInt(ary[6]);
if (t <= ed && t >= st) {
int ist = Integer.parseInt(ary[0]);
if (_move.size() > 0) {
st = Integer.parseInt(_move.peek().split(" ")[0]);
while (st < ist && _move.size() > 0) {
_move.poll();
if (_move.size() == 0) break;
st = Integer.parseInt(_move.peek().split(" ")[0]);
}
}
}
}
if (_move.size() > 0) {
ary = _move.peek().split(" ");
st = Integer.parseInt(ary[0]);
ed = st + Integer.parseInt(ary[8]);
while ((t > ed) && _move.size() > 0) {
// Logger.debug("@TankMediator.handleNotification: t = " + t + " st = " + st + "
// ed="+ed);
String p = (String) _move.poll();
Logger.debug("ClientMediator.TICK _move.poll=" + p);
if (_move.size() == 0) break;
ary = _move.peek().split(" ");
st = Integer.parseInt(ary[0]);
ed = st + Integer.parseInt(ary[8]);
}
if (_move.size() > 0) {
String[] li = (String[]) _move.toArray(new String[0]);
for (int i = li.length - 1; i >= 0; i--) {
String s = li[i];
ary = s.split(" ");
st = Integer.parseInt(ary[0]);
ed = st + Integer.parseInt(ary[8]);
if (t <= ed && t >= st) {
if (t == st) { // ed==st in this situation
_state.x = (int) Float.parseFloat(ary[4]);
_state.y = (int) Float.parseFloat(ary[5]);
_nextX = _state.x;
_nextY = _state.y;
} else {
float sx = Float.parseFloat(ary[4]);
float ex = Float.parseFloat(ary[6]);
float sy = Float.parseFloat(ary[5]);
float ey = Float.parseFloat(ary[7]);
double eco = 1.0 * (t - st) / (ed - st);
_state.x = (int) (sx + (ex - sx) * eco);
_state.y = (int) (sy + (ey - sy) * eco);
double neco = 1.0 * (t + 1 - st) / (ed - st);
_nextX = (sx + (ex - sx) * neco);
_nextY = (sy + (ey - sy) * neco);
}
while (_move.size() > 1) _move.poll();
break;
}
}
}
}
if (_state != null) {
ConcurrentHashMap<Integer, BulletState> bs =
((ServerBulletMediator) (appFacade().retrieveMediator(Const.SERVER_BULLET_MEDIATOR)))
.getBullets();
for (Enumeration enu = bs.keys(); enu.hasMoreElements(); ) {
int id = (Integer) enu.nextElement();
BulletState blt = bs.get(id);
if (Texter.distance(blt.x, blt.y, _state.x, _state.y) < 16) {
this.sendNotification(Const.BROAD_CAST, "destroy bullet " + id, null);
_state.life -= 100;
if (_state.life <= 0) {
this.sendNotification(Const.BROAD_CAST, "destroy tank " + _state.tankID, null);
} else {
this.sendNotification(
Const.BROAD_CAST, "set-life tank " + _state.tankID + " " + _state.life, null);
}
}
}
}
// barrier and tank
if (_state != null) {
// colision detection
// Logger.only("ClientMediator.handleNotification: x="+_state.x+" y="+_state.y+"
// nx="+_nextX+" ny="+_nextY+" "+Texter.sqrareDis(_nextX, _nextY, 470, 200)+"
// "+Texter.sqrareDis(_state.x, _state.y, 470, 200));
if (!Arena.canGo(_state.x, _state.y, _nextX, _nextY)) {
Arena.addReq(_id, Const.STOP_MOVE, getState());
}
for (Enumeration enu = AcceptCmd.clients.elements(); enu.hasMoreElements(); ) {
ClientMediator cmm = (ClientMediator) enu.nextElement();
if (cmm.destroyd) return;
int cmid = cmm.getID();
if (cmid == _id) continue;
TankState ts = cmm.getState();
if (ts == null) continue;
double curdis = Texter.distance(ts.x, ts.y, _state.x, _state.y);
double netdis = Texter.distance(ts.x, ts.y, _nextX, _nextY);
if (curdis < 40 && netdis < curdis) {
Arena.addReq(_id, Const.STOP_MOVE, getState());
Arena.addReq(cmid, Const.STOP_MOVE, ts);
}
}
}
// handle delayed first
// ary=_delayOrder.toArray(new String[0]);
// _delayOrder.clear();
// for(int i=0;i<ary.length;i++){
// Logger.only("delayArray: "+ary[i]);
// int ttt=Integer.parseInt(ary[i].split(" ")[0]);
// if(ttt==t){
// tellClientWithTime(ary[i]);
// }else if(ttt>t){
// _delayOrder.add(ary[i]);
// }
// }
} else if (noname == Const.BROAD_CAST) {
String s = (String) notification.getBody();
String ary[] = s.split(" ");
if (notification.getType() == Const.NO_PREFIX) {
tellClientWithTime(s);
return;
} else if (s.indexOf("talk") > -1) {
tellClient(s, 0);
return;
}
if (_id == Integer.parseInt(ary[2])) {
if (s.indexOf("rotate-gun") > -1) {
_lastRotateGun = TimerCmd.timeStamp + " " + s;
if (_state != null) _state.gunAngle = Float.parseFloat(_lastRotateGun.split(" ")[5]);
} else if (s.indexOf("move tank") > -1) {
Logger.debug("ClientMediator: move add s=" + s);
int offset = Integer.parseInt(notification.getType());
if (offset == 0) _move.clear();
_move.add((TimerCmd.timeStamp + offset) + " " + s);
} else if (s.indexOf("create tank") > -1) {
_state =
new TankState(
_id,
ary[3],
Integer.parseInt(ary[6]),
(int) Float.parseFloat(ary[8]),
(int) Float.parseFloat(ary[9]),
Float.parseFloat(ary[10]),
Float.parseFloat(ary[11]));
_state.printState();
} else if (s.indexOf("rotate-tank") > -1) {
_lastRotTank = TimerCmd.timeStamp + " " + s;
if (_state != null) _state.tankAngle = Float.parseFloat(_lastRotTank.split(" ")[5]);
} else if (s.indexOf("destroy tank") > -1) {
this.destroyd = true;
}
}
if (notification.getType() != null) tellClient(s, Integer.parseInt(notification.getType()));
else tellClient(s, 0);
}
}
public void offer(Communicator c) {
queue.offer(c);
}