public static List<List<Integer>> levelOrderBottom(TreeNode root) {
if (root == null) {
return new ArrayList<>();
}
List<List<Integer>> res = new ArrayList<>();
List<Integer> level = new ArrayList<>();
Queue<TreeNode> queue = new LinkedList<>(); // 新建一个queue，用来记录哪些nodes是目前的波前
queue.add(root); // 向root注水作为波前
queue.add(null); // 在波前队列queue加null作为Flag代表这层level已访问结束
while (queue.size() != 0) {
TreeNode u = queue.poll();
if (u != null) {
level.add(u.val);
/*
* 波前u向其所有有连同的node扩散
* u是v的predecessor前驱 or parent
* v是u的 descendent后记
* */
if (u.left != null) {
queue.add(u.left);
}
if (u.right != null) {
queue.add(u.right);
}
} else {
res.add(level);
level = new ArrayList<Integer>();
if (!queue.isEmpty()) {
queue.add(null);
}
}
}
Collections.reverse(res);
return res;
}
public List<List<Integer>> levelOrderBottom(TreeNode root) {
List<List<Integer>> ret = new ArrayList<>();
if (root == null) {
return ret;
}
Stack<List<Integer>> tmpStack = new Stack<>();
Queue<TreeNode> tmpQueue = new LinkedList<>();
tmpQueue.add(root);
while (tmpQueue.size() != 0) {
int length = tmpQueue.size();
List<Integer> tmp = new ArrayList<>();
while (length != 0) {
TreeNode topNode = tmpQueue.poll();
if (topNode.right != null) {
tmpQueue.add(topNode.right);
}
if (topNode.left != null) {
tmpQueue.add(topNode.left);
}
tmp.add(topNode.val);
length--;
}
tmpStack.push(tmp);
}
while (!tmpStack.empty()) {
ret.add(tmpStack.pop());
}
return ret;
}
/**
* Run Method which simulates the number of threads running on the bridge
*
* @param None
* @return None
*/
public void run() {
while (true) {
Truck theTruck; // Stores the Truck Object
// synchronized on truck queue before removing the truck objects
synchronized (theTruckQueue) {
// If there are no Trucks then wait for trucks to arrive
while (theTruckQueue.isEmpty()) {
try {
theTruckQueue.wait();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
theTruck = theTruckQueue.remove();
}
// Check for the maximum trucks allowed on the bridge and max weight
// allowed on the bridge
// Do not allow any more trucks if we exceed any of the limit
while (theBridgeQueue.size() == MAX_SIZE
|| (theTruck.getWeight() + getTotalWeight()) >= MAX_WEIGHT) {
System.out.println("Total number of trucks on Bridge: " + theBridgeQueue.size());
System.out.println("Total Weight on Bridge is: " + getTotalWeight());
Truck truckOnBridge = theBridgeQueue.remove();
System.out.println("The truck Entered " + truckOnBridge.getSide() + " of the Bridge left");
}
// Allow the trucks on the bridge on first come first serve basis
System.out.println("Truck " + theTruck.getSide() + " is Entering the Bridge");
theBridgeQueue.add(theTruck);
System.out.println("Truck " + theTruck.getSide() + " is running on the Bridge");
}
}
protected static <T> void parseEDISegmentOrSegmentGroup(
EDIMessage ediMessage,
T object,
Iterator<Field> fieldIterator,
Queue<String> lookAhead,
SegmentIterator segmentIterator)
throws EDIMessageException, IllegalAccessException, InvocationTargetException,
InstantiationException, ClassNotFoundException, ConversionException {
if (!fieldIterator.hasNext()) {
throw new EDIMessageException("No more fields to read.");
}
if (!segmentIterator.hasNext() && lookAhead.size() == 0) {
return;
}
// get the queued object first...
String line = lookAhead.size() > 0 ? lookAhead.remove() : segmentIterator.next();
// match up the field with the line...
FieldMatch fm = advanceToMatch(ediMessage, fieldIterator, line);
//
if (fm != null) {
Class<?> fieldType = getEDISegmentOrGroupType(fm.getField());
if (fieldType.isAnnotationPresent(EDISegment.class)) {
processSegment(ediMessage, object, lookAhead, segmentIterator, fm);
} else if (fieldType.isAnnotationPresent(EDISegmentGroup.class)) {
processSegmentGroup(ediMessage, object, lookAhead, segmentIterator, fm);
}
} else {
lookAhead.add(line);
}
}
/**
* "Push" new content to consumers: publish to this input stream readers new content to be read
* from <code>inputStream</code> parameter. This
*
* @param inputStream New content for producers
* @throws IOException If this input stream was closed.
* @throws IllegalArgumentException If <code>inputStream</code> is <code>null</code>.
* @see #close()
*/
public void push(InputStream inputStream) throws IOException {
if (inputStream == null) {
throw new IllegalArgumentException("Input stream can not be null.");
}
if (isClosed) {
throw new IOException("Stream is closed");
}
while (!inputStreamBuffer.offer(inputStream)) {
debug("[P] Waiting for a read to complete (" + inputStreamBuffer.size() + ")");
synchronized (consumerMonitor) {
consumerMonitor.notifyAll();
}
if (!inputStreamBuffer.offer(inputStream)) {
synchronized (producerMonitor) {
try {
producerMonitor.wait();
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
}
debug("[P] End of wait");
}
debug("[P] Added a new input stream (buffer now has " + inputStreamBuffer.size() + " streams)");
}
public void run() {
while (isConnected()) {
/*try {
Thread.sleep(500);
} catch (InterruptedException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}*/
// take out a message from Queue and send it
try {
if (messageQueue.size() > 0) {
Log.debug("Number of messages in Queue = " + messageQueue.size());
}
OpenIGTMessage msg = messageQueue.poll();
if (msg != null) {
sendMessage(msg);
} else if (curPos != null) {
sendMessage(curPos);
curPos = null;
}
} catch (Exception e) {
if (!messageQueue.isEmpty()) {
messageQueue
.clear(); // clear message queue if ws not able to send as that is a connection
// problem
Log.debug(
"Clearing Message Sender Queue ; Number of messages in Queue = "
+ messageQueue.size());
}
// TODO Auto-generated catch block
e.printStackTrace();
}
}
Log.debug("Stopped IGTLink client Sender");
}
private void createTaxis(int starthr, int endhr) {
System.out.println(this.taxisOverTime);
vqueue = new LinkedList<VData>();
vdata = new ArrayList<VData>();
for (int i = starthr; i <= endhr; i++) {
List<TaxiDemandPerLor> demandPerLor;
DemandPerLorParser dpl = new DemandPerLorParser();
Integer day = (i / 24) + 15;
Integer hr = i % 24;
String hrstring = String.format("%02d", hr);
String filename =
DATADIR + "OD/demandperLorHr/OD_201304" + day.toString() + hrstring + "_OD.csv";
BerlinVehicleGenerator.read(filename, dpl);
demandPerLor = dpl.getDemand();
int currentVeh = this.taxisOverTime.get(i);
if (i == starthr) addStartVehicles(currentVeh, demandPerLor, hr);
else {
int lastVeh = this.taxisOverTime.get(i - 1);
if (currentVeh > lastVeh) {
addTaxis(currentVeh - lastVeh, demandPerLor, hr);
System.out.println(currentVeh + ":" + lastVeh + " a: " + vqueue.size());
} else if (currentVeh < lastVeh) {
if (!(hr > 24)) removeTaxis(lastVeh - currentVeh, hr);
System.out.println(currentVeh + ":" + lastVeh + " r: " + vqueue.size());
}
}
}
removeTaxis(vqueue.size(), endhr % 24 + 1);
}
public int compute(int cycles) throws HandlerException {
System.out.println(
"dbpedia spreader: "
+ cycles
+ " cycles over "
+ seeds.length
+ " seeds: "
+ seeds[0]
+ "...");
for (int i = 0; i < cycles; i++) {
if (0 == curGen.size()) {
if (0 == nextGen.size()) {
return 0;
} else {
System.out.println("weight " + weight + " --> " + weight * DECAY);
weight *= DECAY;
Queue<Resource> tmp = curGen;
curGen = nextGen;
nextGen = tmp;
}
} else {
Resource r = curGen.remove();
stepRelated(sailConnection, r, weight, vector, nextGen);
}
}
return cycles;
}
@Override
public synchronized int read(byte[] b, int off, int len) throws IOException {
if (len == 0) {
return 0;
}
try {
while (state_ == State.OPEN && queue_.isEmpty()) {
wait();
}
if (state_ == State.KILLED) {
throw new IOException("Stream has been closed");
}
if (state_ == State.CLOSED && queue_.isEmpty()) {
return -1;
}
if (len > queue_.size()) {
len = queue_.size();
}
for (int i = 0; i < len; ++i) {
b[off++] = queue_.remove();
}
return len;
} catch (InterruptedException e) {
throw new IOException("Interrupted");
}
}
// Returns a code tree that is optimal for these frequencies. Always contains at least 2 symbols,
// to avoid degenerate trees.
public CodeTree buildCodeTree() {
// Note that if two nodes have the same frequency, then the tie is broken by which tree contains
// the lowest symbol. Thus the algorithm is not dependent on how the queue breaks ties.
Queue<NodeWithFrequency> pqueue = new PriorityQueue<NodeWithFrequency>();
// Add leaves for symbols with non-zero frequency
for (int i = 0; i < frequencies.length; i++) {
if (frequencies[i] > 0) pqueue.add(new NodeWithFrequency(new Leaf(i), i, frequencies[i]));
}
// Pad with zero-frequency symbols until queue has at least 2 items
for (int i = 0; i < frequencies.length && pqueue.size() < 2; i++) {
if (i >= frequencies.length || frequencies[i] == 0)
pqueue.add(new NodeWithFrequency(new Leaf(i), i, 0));
}
if (pqueue.size() < 2) throw new AssertionError();
// Repeatedly tie together two nodes with the lowest frequency
while (pqueue.size() > 1) {
NodeWithFrequency nf1 = pqueue.remove();
NodeWithFrequency nf2 = pqueue.remove();
pqueue.add(
new NodeWithFrequency(
new InternalNode(nf1.node, nf2.node),
Math.min(nf1.lowestSymbol, nf2.lowestSymbol),
nf1.frequency + nf2.frequency));
}
// Return the remaining node
return new CodeTree((InternalNode) pqueue.remove().node, frequencies.length);
}
private void adjustClientCount() {
if (m_syncRequestClientCount < m_syncRequestClients.size()) {
reduceClients(m_syncRequestClientCount);
} else if (m_syncRequestClientCount > m_syncRequestClients.size()) {
increaseClients(m_syncRequestClientCount);
}
}
private void rightSideViewHelper(List<Integer> result, Queue<TreeNode> currLevel) {
if (null == currLevel || currLevel.size() == 0) {
return;
}
Queue<TreeNode> nextLevel = new LinkedList<>();
while (currLevel.size() != 1) {
TreeNode node = currLevel.poll();
if (node.left != null) {
nextLevel.add(node.left);
}
if (node.right != null) {
nextLevel.add(node.right);
}
}
TreeNode last = currLevel.poll();
result.add(last.val);
if (last.left != null) {
nextLevel.add(last.left);
}
if (last.right != null) {
nextLevel.add(last.right);
}
rightSideViewHelper(result, nextLevel);
}
protected void sendStreamOfCommands(int[] sequenceNumbers, boolean expected, int expectedCount) {
for (int i = 0; i < sequenceNumbers.length; i++) {
int commandId = sequenceNumbers[i];
ConsumerInfo info = new ConsumerInfo();
info.setSelector("Cheese: " + commandId);
info.setCommandId(commandId);
transport.onCommand(info);
}
Queue<Object> exceptions = listener.getExceptions();
Queue<Object> commands = listener.getCommands();
if (expected) {
if (!exceptions.isEmpty()) {
Exception e = (Exception) exceptions.remove();
e.printStackTrace();
fail("Caught exception: " + e);
}
assertEquals("number of messages received", expectedCount, commands.size());
assertEquals("Should have no buffered commands", 0, transport.getBufferedCommandCount());
} else {
assertTrue("Should have received an exception!", exceptions.size() > 0);
Exception e = (Exception) exceptions.remove();
LOG.info("Caught expected response: " + e);
}
}
/**
* Close this stream and perform some checks:
*
* <ul>
* <li>Mark this stream as closed (no more calls to {@link #push(java.io.InputStream)} are
* allowed)
* <li>Closes any remaining stream pushed to this stream
* </ul>
*
* <p>Calling this method wakes up any thread blocked on {@link #read()}
*
* <p>Wait till all streams pushed to this stream (and stored in <code>inputStreamBuffer</code>)
* are processed by a reader.
*
* <p>When this method exits, the buffer is empty and the last stream in buffer is fully read
* (i.e. until read() returns -1).
*
* <p><b>Note:</b> if {@link #setConsumerThread(Thread)} was previously called, this method will
* wait for the death of consumer before returning.
*
* @throws IOException In case at least one stream in buffer hasn't been read.
* @see java.io.InputStream#close()
*/
@Override
public void close() throws IOException {
super.close();
isClosed = true;
warmUpStrategy = NoWarmUpStrategy.INSTANCE; // In case close() is called before end of warm up.
synchronized (consumerMonitor) {
consumerMonitor.notifyAll();
}
debug("[P] Input stream buffer size: " + inputStreamBuffer.size());
debug("[P] Has finished read: " + consumeStrategy.isConsumed());
while (!inputStreamBuffer.isEmpty() || !consumeStrategy.isConsumed()) {
try {
debug(
"[P] Waiting for exhaust... ("
+ inputStreamBuffer.size()
+ " buffer(s) remaining / consumer finished: "
+ consumeStrategy.isConsumed()
+ ")");
synchronized (exhaustLock) {
exhaustLock.wait(200);
}
// In case we got woken up due to a failure
throwLastFailure();
debug("[P] Waiting for exhaust done.");
} catch (InterruptedException e) {
throw new RuntimeException(e);
}
}
// In case failure happened on very last read.
throwLastFailure();
debug("[P] Close completed.");
}
/**
* put the flip lake tile of the game
*
* @param players list of players
*/
private void setUpLakeTile(Queue<Player> players) {
Random r = new Random();
int randomRedLantern = r.nextInt(players.size());
Queue<Color> color = startLakeTile.getColorOfFourSides();
// change the current player who get red lantern card
color.add(color.remove());
for (int i = 0; i < randomRedLantern; i++) {
players.add(players.remove());
}
int current_number_player = 0;
// add index to player
for (int i = 0; i < players.size(); i++) {
Player p = players.remove();
p.setIndex(i);
players.add(p);
}
for (Color lantern_color : color) {
if (current_number_player == players.size()) {
break;
} else {
current_number_player++;
}
Player p = players.remove();
p.getLanternCards().add(supply.get(lantern_color).pop());
players.add(p);
}
}
public void addPlaneFromBoard(AirplaneSprite plane) {
if (hangerPlanes.size() == 4) {
throw new IllegalStateException("Hanger Render Manager to full to add a plane to the runway");
}
plane.moveToPoint(spawnPoints.get(hangerPlanes.size()));
hangerPlanes.add(plane);
}
public void addPlane(AirplaneSprite plane) {
if (hangerPlanes.size() == 4) {
throw new IllegalStateException("Hanger Render Manager to full to add a plane to the runway");
}
ImmutablePoint2 position = spawnPoints.get(hangerPlanes.size());
plane.moveToPoint(position);
hangerPlanes.add(plane);
}
/**
* Constructor of play area get all stuff of starting play area depend on number of players
*
* @param players list of players
*/
public PlayArea(Queue<Player> players) {
numberOfFavorTokens = 20;
supply = new Supply(players.size());
lakeTilesOnBoard = new LakeTile[65][65];
initializeLakeTiles(players.size());
lakeTilesOnBoard[32][32] = startLakeTile;
initializeDedicationTokens(players.size());
setUpLakeTile(players);
}
public void expectNoMoreEvents() {
int before = events.size();
try {
Thread.sleep(1);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
int after = events.size();
assertThat("expected no more events, but still got some more: " + events, after, is(before));
}
public double next(int val) {
if (q.size() == this.max) {
total -= q.poll();
}
q.offer(val);
total += val;
return (double) total / q.size();
}
public boolean hasNext()
throws NoRecordsMatchException, BadResumptionTokenException, CannotDisseminateFormatException,
NoSetHierarchyException, InternalHarvestException {
if (_queue == null
|| (_queue.size() == 0 && resumption != null && !resumption.trim().equals(""))) {
if (_queue == null) _queue = new LinkedList<Identifier>();
this.harvest();
}
return (_queue.size() > 0);
}
@Override
public void sample() throws RDFHandlerException {
getStartNodes();
Utility.logInfo(queue.size());
int u, v, pick, index;
int individualLimit = statementLimit / queue.size(), currentLimit = 0;
RDFEdge edge;
List<RDFEdge> edges;
Stack<Integer> stack = new Stack<Integer>();
while (true) {
if (noOfStatements >= statementLimit) {
System.out.println("The number of statements in the sampling: " + noOfStatements);
return;
}
if (noOfStatements >= currentLimit) {
stack.clear();
}
if (stack.isEmpty()) {
if (queue.isEmpty()) v = rand.nextInt(m_graph.numberOfIndividuals);
else {
v = queue.poll();
currentLimit += individualLimit;
}
stack.add(v);
// Utility.logInfo(noOfStart + " new start: " + m_graph.getRawString(v));
visit(v);
}
u = stack.peek();
if (rand.nextInt(100) < 15) {
stack.pop();
continue;
}
if ((edges = m_graph.edges.get(u)) == null || edges.size() == 0) {
stack.clear();
continue;
}
index = 0;
pick = rand.nextInt(edges.size());
for (Iterator<RDFEdge> iter = edges.iterator(); iter.hasNext(); ++index) {
edge = iter.next();
if (index == pick) {
stack.add(v = edge.m_dst);
visit(v);
m_writer.handleStatement(m_graph.getStatement(u, edge.m_label, edge.m_dst));
++noOfStatements;
iter.remove();
}
}
}
}
public static void assertEqual(Queue<NdPoint> expected, Queue<NdPoint> actual) {
String error = String.format("expected: %s but was: %s", expected, actual);
assertEquals(error, expected.size(), actual.size());
Iterator<NdPoint> iexpect = expected.iterator();
Iterator<NdPoint> iactual = actual.iterator();
while (iexpect.hasNext()) {
NdPoint e = iexpect.next();
NdPoint a = iactual.next();
assertTrue(error, e.equals(a));
}
}
public String toString() {
return String.format(
"%s [%d/%d@%d,%d/%d@%d,%d/%d@-]",
getClass().getSimpleName(),
_headers.size(),
_maxSize,
_headerSize,
_buffers.size(),
_maxSize,
_bufferSize,
_others.size(),
_maxSize);
}
public void runEnqueuedTasks() {
// run reasoner if it is not yet running
if (isReasoningEnabled() && !running) {
// ensure that only one reasoner is started at the same time
reasonerLock.lock();
try {
running = true;
// run reasoner as long as there are tasks in the queue; if new tasks are added
// while the reasoner is still running, they are executed in subsequent iterations
// of the loop
while (!taskQueue.isEmpty() && isReasoningEnabled()) {
SystemStatus status =
new SystemStatus(
"Reasoner ("
+ taskQueue.size()
+ (taskQueue.size() > 1 ? " tasks remaining)" : " task remaining)"));
status.setId("reasonerStatus");
statusService.addSystemStatus(status);
currentTask = taskQueue.poll();
if (currentTask == null) {
log.error("task is null!");
}
try {
processTask(currentTask);
} catch (SecurityException e) {
log.error("error while committing transaction (security exception)", e);
} catch (IllegalStateException e) {
log.error("error while committing transaction (illegal state)", e);
} finally {
statusService.removeSystemStatus(status);
}
}
} finally {
// release lock
running = false;
reasonerLock.unlock();
}
} else if (!isReasoningEnabled()) {
log.info(
"online reasoning disabled; just enqueuing reasoning task without starting reasoner");
} else if (running) {
log.info("reasoner already running; just enqueuing reasoning task");
}
}
public void fillQueue() {
while (images.size() < this.minSize && paths.size() > 0) {
String path = paths.poll();
if (path != null) {
try {
Image img = ImageIO.read(new File(path));
images.add(img);
System.out.println("Caching " + path);
} catch (IOException ioe) {
// TODO: handle exception
}
}
}
}
// Removes the element on top of the stack.
public void pop() {
if (q1.isEmpty()) {
while (q2.size() > 1) {
q1.offer(q2.poll());
}
q2.poll();
return;
}
if (q2.isEmpty()) {
while (q1.size() > 1) {
q2.offer(q1.poll());
}
q1.poll();
}
}
public void restore_from_save(Queue<cell_w_coor> Q_for_pack, Vector<Coor> Q_of_cell) {
this.Q_of_cell = Q_of_cell;
System.out.println(Q_for_pack.size());
// Resotre all live cell into grid
while (Q_for_pack.size() != 0) {
cell_w_coor temp = Q_for_pack.poll();
cells[temp.z][temp.x][temp.y] = temp.cell;
// System.out.println(temp.z + " " + temp.x + " " + temp.y);
}
// Refresh screen
this.repaint();
}
public Object evaluate(EditorAdaptor vim, Queue<String> command) {
String next = command.poll();
int index = next.indexOf('=');
if (index < 0) {
noSuchOptionMessage(vim, next);
return null;
}
String optName = next.substring(0, index).trim();
String value = next.substring(index + 1);
if (command.size() > 0) {
// restore preceding space and spaces between tokens
value += " " + StringUtils.join(" ", command);
}
Option<String> strOpt;
Option<Integer> intOpt;
try {
if ((strOpt = find(Options.STRING_OPTIONS, optName)) != null) set(vim, strOpt, value);
else if ((intOpt = find(Options.INT_OPTIONS, optName)) != null)
set(vim, intOpt, Integer.valueOf(value));
else noSuchOptionMessage(vim, optName);
} catch (ValueException e) {
invalidValueMessage(vim, value);
} catch (NumberFormatException e) {
invalidValueMessage(vim, value);
}
return null;
}
/**
* Adds a ServiceRequest to the collection, and calls notifies a single waiting thread.
*
* @param item
* @return
*/
public boolean enqueue(ServiceRequest item) {
synchronized (this) {
System.out.println(Thread.currentThread().getName() + " adding: " + item);
while (queue.size() == upperBound) {
try {
System.out.println(
Thread.currentThread().getName() + " found queue size: " + queue.size());
wait();
} catch (InterruptedException e) {
}
}
queue.add(item);
notifyAll();
return true;
}
}
