public T doWork(T context, int niters, Result<T> opts) {
opts.setErrorCount(0);
ActionRecord record = new ActionRecord();
ActionRecord logRecord = new ActionRecord();
final int transactionSize =
ThreadLocalRandom.current().nextInt(this.maxTransactionSize) + this.minTransactionSize;
List<String> keysToUse = keys.getRandomKeyList(transactionSize, true);
// If this is a logger
if (writeToLogs > 0 && ThreadLocalRandom.current().nextInt(1000) < 1) {
System.out.println("Log Reader");
record = machine.readLog(3, millisBetweenActions);
workTimeMillis = System.currentTimeMillis();
return null;
}
if (keysToUse.size() < 2) {
System.out.println("whoa there...");
}
// Get Random number to assign task
final int rand1 = ThreadLocalRandom.current().nextInt(1000);
if (rand1 < chanceOfRead) {
// Reader
record = machine.read(keysToUse, millisBetweenActions);
} else if (rand1 < chanceOfWrite) {
// Writer
record = machine.update(keysToUse, millisBetweenActions);
} else if (rand1 < chanceOfReadModifyWrite) {
// Reader + Writer
record = machine.readModifyWrite(keysToUse, millisBetweenActions);
} else if (rand1 < chanceOfBalanceTransfer) {
record = machine.balanceTransfer(keysToUse.get(0), keysToUse.get(1), millisBetweenActions);
} else if (rand1 < chanceOfIncrementalUpdate) {
record = machine.incrementalUpdate(keysToUse, millisBetweenActions);
}
// Write the logs (if there are any to write)
if (writeToLogs > 0) logRecord = machine.writeLog(writeToLogs, millisBetweenActions);
// Check for success
if (record == null
|| !record.isSuccess()
|| (writeToLogs > 0 && (logRecord == null || !logRecord.isSuccess()))) {
opts.incrementErrorCount();
}
workTimeMillis = System.currentTimeMillis();
return null;
}
public static void IA() {
while (true) {
if (!(remplis(TabManager.horizontale))) {
System.out.println("IA H");
int cooxH = ThreadLocalRandom.current().nextInt(0, l);
int cooyH = ThreadLocalRandom.current().nextInt(0, c - 1);
while (TabManager.horizontale[cooxH][cooyH] == 1) {
cooxH = ThreadLocalRandom.current().nextInt(0, l);
cooyH = ThreadLocalRandom.current().nextInt(0, c - 1);
}
TabManager.horizontale[cooxH][cooyH] = 1;
Test1.b = true;
break;
}
if (!(remplis(TabManager.verticale))) {
System.out.println("IA V");
int cooxV = ThreadLocalRandom.current().nextInt(0, l - 1);
int cooyV = ThreadLocalRandom.current().nextInt(0, c);
while (TabManager.verticale[cooxV][cooyV] == 1) {
cooxV = ThreadLocalRandom.current().nextInt(0, l - 1);
cooyV = ThreadLocalRandom.current().nextInt(0, c);
}
TabManager.verticale[cooxV][cooyV] = 1;
Test1.b = true;
break;
}
}
}
public PoolBagEntry(final Connection connection, final HikariPool pool) {
this.connection = connection;
this.parentPool = pool;
this.creationTime = System.currentTimeMillis();
this.poolElf = pool.poolElf;
this.state = new AtomicInteger(STATE_NOT_IN_USE);
this.lastAccess = ClockSource.INSTANCE.currentTime();
this.openStatements = new FastList<>(Statement.class, 16);
poolElf.resetPoolEntry(this);
final long maxLifetime = pool.config.getMaxLifetime();
final long variance = maxLifetime > 60_000 ? ThreadLocalRandom.current().nextLong(10_000) : 0;
final long lifetime = maxLifetime - variance;
if (lifetime > 0) {
endOfLife =
pool.houseKeepingExecutorService.schedule(
new Runnable() {
@Override
public void run() {
// If we can reserve it, close it
if (pool.connectionBag.reserve(PoolBagEntry.this)) {
pool.closeConnection(PoolBagEntry.this, "(connection reached maxLifetime)");
} else {
// else the connection is "in-use" and we mark it for eviction by
// pool.releaseConnection() or the housekeeper
PoolBagEntry.this.evicted = true;
}
}
},
lifetime,
TimeUnit.MILLISECONDS);
}
}
@Test
public void testRandomRangeAndBatches() throws ExecutionException, InterruptedException {
ThreadLocalRandom random = ThreadLocalRandom.current();
int treeSize = random.nextInt(maxTreeSize / 10, maxTreeSize * 10);
for (int i = 0; i < perThreadTrees / 10; i++)
testInsertions(threads * 10, treeSize, random.nextInt(1, 100) / 10f, treeSize / 100, true);
}
/** Store data to StorageNode with the Node is selected randomly */
public void bindReplicasToStorageNodeRand_Net() {
int replicaNum = replicaList.size();
int nodeSize = nodeList.size();
for (int i = 0; i < replicaNum; i++) {
BlockReplica replica = replicaList.get(i);
StorageNode node =
nodeList.get(java.util.concurrent.ThreadLocalRandom.current().nextInt(nodeSize));
double replicaSize = replica.getSize();
if (node.getAvailableSpace() - replicaSize >= 0.000000000000000000000001
&& !node.contains(replica.getName())) {
double time = node.addFile(replica);
double accrossLatency = NetworkTopology.getDelay(getId(), node.getDatacenter().getId());
time += accrossLatency;
/*Log.printLine("it take " + time
+ " seconds to write the replica #" + replica.getId()
+ " to be stored in datacenter "
+ node.getDatacenter().getName() + " node #"
+ node.getId());*/
Log.printLine(
"replica #"
+ replica.getId()
+ " "
+ node.getDatacenter().getName()
+ " node #"
+ node.getId()
+ " "
+ time);
} else {
i--;
}
}
}
/** @throws Exception If failed. */
public void testConcurrentStart() throws Exception {
ThreadLocalRandom rnd = ThreadLocalRandom.current();
for (int i = 0; i < 3; i++) {
try {
clientNodes = new HashSet<>();
while (clientNodes.size() < 2) clientNodes.add(rnd.nextInt(1, NODES_CNT));
clientNodes.add(NODES_CNT - 1);
log.info("Test iteration [iter=" + i + ", clients=" + clientNodes + ']');
Ignite srv = startGrid(0); // Start server node first.
assertFalse(srv.configuration().isClientMode());
startGridsMultiThreaded(1, NODES_CNT - 1);
checkTopology(NODES_CNT);
awaitPartitionMapExchange();
for (int node : clientNodes) {
Ignite ignite = grid(node);
assertTrue(ignite.configuration().isClientMode());
}
} finally {
stopAllGrids();
}
}
}
public class DutchNationalFlagTest {
private ThreadLocalRandom random = ThreadLocalRandom.current();
@Rule public MockitoRule mrule = MockitoJUnit.rule();
private int[] createRandomItems(int size) {
return IntStream.range(0, size).mapToObj(i -> random.nextInt(3)).mapToInt(i -> i).toArray();
}
@Test
public void sort() throws Exception {
int size = 100;
int[] items = createRandomItems(size);
DutchNationalFlag service = spy(new DutchNationalFlag(items));
service.sort();
int i = 0;
while (i < size && items[i++] == 0) ;
assertTrue(items[i] == 1);
while (i < size && items[i++] == 1) ;
assertTrue(items[i] == 2);
while (i < size && items[i++] == 2) ;
assertEquals(i, size);
verify(service, atMost(size)).getColor(anyInt());
verify(service, atMost(size)).swap(anyInt(), anyInt());
}
}
public static void timeLookup(TreeSet<Integer> tree, long size) {
tree.contains(7);
tree.contains(4038);
tree.contains(2898833);
int limit = 50000000;
int randomSize = 1000000;
// Generate a list of random numbers to get rid of the time it takes
// to generate the numbers
ArrayList<Integer> randomNums = new ArrayList<>();
for (int i = 0; i < randomSize; i++)
randomNums.add(ThreadLocalRandom.current().nextInt(0, (int) size));
// Store the overhead of a for loop
long start = System.nanoTime();
for (int i = 0; i < limit; i++) ;
long stop = System.nanoTime();
long overheadTime = stop - start;
// Time the lookups
start = System.nanoTime();
for (int i = 0; i < limit; i++) tree.contains(randomNums.get(i % randomSize));
stop = System.nanoTime();
System.out.println((stop - start - overheadTime) / 1000000);
}
protected int generateRandomIndex() {
if (tickets.size() == 1) {
return 0;
}
int index = ThreadLocalRandom.current().nextInt(1, tickets.size());
return index;
}
@Override
public MutatedInstanceMetaData<MultiMaskEfsmSkeleton, MultiMaskEfsmMutation> apply(
MultiMaskEfsmSkeleton individual) {
List<Step> transitions = getTransitions(individual);
if (transitions.isEmpty()) {
return new MutatedInstanceMetaData<MultiMaskEfsmSkeleton, MultiMaskEfsmMutation>(
new MultiMaskEfsmSkeleton(individual), new MutationCollection<MultiMaskEfsmMutation>());
}
MyMap num = new MyMap();
for (Step s : transitions) {
num.put(s, 1);
}
for (VarsActionsScenario s : individual.getCounterExamples()) {
getTrace(individual, s, num);
}
double sum = 0;
for (Step s : transitions) {
sum += num.get(s);
}
int i = 0;
double cur = num.get(transitions.get(0)) / sum;
ThreadLocalRandom random = ThreadLocalRandom.current();
while (random.nextDouble() > cur) {
i++;
cur += num.get(transitions.get(i)) / sum;
}
Step s = transitions.get(i);
MultiMaskEfsmSkeleton ind = new MultiMaskEfsmSkeleton(individual);
int x = random.nextInt(MultiMaskEfsmSkeleton.STATE_COUNT);
ind.getState(s.state).getTransitionGroup(s.event, s.group).setNewState(s.index, x);
return new MutatedInstanceMetaData<MultiMaskEfsmSkeleton, MultiMaskEfsmMutation>(
ind,
new MutationCollection<MultiMaskEfsmMutation>(
new DestinationStateMutation(s.state, s.event, s.group, s.index, x)));
}
private void generaCodice() {
Object[] colori = ColoriDisponibili.disponibili.getColori().keySet().toArray();
for (int i = 0; i < 4; i++) {
int indice = ThreadLocalRandom.current().nextInt(0, colori.length);
codice.aggiungiNumero((Color) colori[indice]);
}
}
@Test
@Ignore(
"Very simple microbenchmark to compare different writeTo implementations. Only for development thus "
+ "ignored.")
public void testWriteToMicrobenchmark() throws IOException {
int capacity = 1024 * 128;
int iterations = 100;
int testRuns = 10;
byte[] bytes = new byte[capacity];
ThreadLocalRandom.current().nextBytes(bytes);
ByteBuffer buffer = BufferUtil.allocate(capacity);
BufferUtil.append(buffer, bytes, 0, capacity);
long startTest = System.nanoTime();
for (int i = 0; i < testRuns; i++) {
long start = System.nanoTime();
for (int j = 0; j < iterations; j++) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
long startRun = System.nanoTime();
BufferUtil.writeTo(buffer.asReadOnlyBuffer(), out);
long elapsedRun = System.nanoTime() - startRun;
// LOG.warn("run elapsed={}ms", elapsedRun / 1000);
assertThat(
"Bytes in out equal bytes in buffer",
Arrays.equals(bytes, out.toByteArray()),
is(true));
}
long elapsed = System.nanoTime() - start;
LOG.warn("elapsed={}ms average={}ms", elapsed / 1000, elapsed / iterations / 1000);
}
LOG.warn(
"overall average: {}ms", (System.nanoTime() - startTest) / testRuns / iterations / 1000);
}
@Test
public void testManyClusterings() throws Throwable {
StringBuilder table = new StringBuilder("CREATE TABLE %s (a TEXT");
StringBuilder cols = new StringBuilder();
StringBuilder args = new StringBuilder("?");
List<Object> vals = new ArrayList<>();
vals.add("a");
for (int i = 0; i < 40; i++) {
table.append(", c").append(i).append(" text");
cols.append(", c").append(i);
if (ThreadLocalRandom.current().nextBoolean()) vals.add(Integer.toString(i));
else vals.add("");
args.append(",?");
}
args.append(",?");
vals.add("value");
table.append(", v text, PRIMARY KEY ((a)").append(cols).append("))");
createTable(table.toString());
execute("INSERT INTO %s (a" + cols + ", v) VALUES (" + args + ")", vals.toArray());
flush();
UntypedResultSet.Row row = execute("SELECT * FROM %s").one();
for (int i = 0; i < row.getColumns().size(); i++)
Assert.assertEquals(vals.get(i), row.getString(i == 0 ? "a" : i < 41 ? "c" + (i - 1) : "v"));
}
/** @throws Exception If failed. */
public void testLockSerialization() throws Exception {
final IgniteLock lock = grid(0).reentrantLock("lock", true, true, true);
info("Lock created: " + lock);
lock.isFailoverSafe();
lock.isFair();
grid(ThreadLocalRandom.current().nextInt(G.allGrids().size()))
.compute()
.broadcast(
new IgniteCallable<Object>() {
@Nullable
@Override
public Object call() throws Exception {
Thread.sleep(1000);
lock.lock();
try {
info("Inside lock: " + lock.getHoldCount());
} finally {
lock.unlock();
}
return null;
}
});
}
public Observable<List<TwitterUser>> searchUsers(String prefix) {
if (ThreadLocalRandom.current().nextDouble() < failureProbability) {
return Observable.error(new IOException("Broken pipe"));
}
return Observable.from(users).skip(1).toList().subscribeOn(Schedulers.newThread());
}
// select a random subset of the keys, with an optional random population of keys inbetween those
// that are present
// return a value with the search position
private static List<Integer> randomKeys(
Iterable<Integer> canonical, boolean mixInNotPresentItems) {
ThreadLocalRandom rnd = ThreadLocalRandom.current();
boolean useFake = mixInNotPresentItems && rnd.nextBoolean();
final float fakeRatio = rnd.nextFloat();
List<Integer> results = new ArrayList<>();
Long fakeLb = null, fakeUb = null;
for (Integer v : canonical) {
if (!useFake
|| fakeLb == null
|| (fakeUb == null ? v - 1 : fakeUb) <= fakeLb + 1
|| rnd.nextFloat() < fakeRatio) {
// if we cannot safely construct a fake value, or our randomizer says not to, we emit the
// next real value
results.add(v);
fakeLb = v.longValue();
fakeUb = null;
} else {
// otherwise we emit a fake value in the range immediately proceeding the last real value,
// and not
// exceeding the real value that would have proceeded (ignoring any other suppressed real
// values since)
if (fakeUb == null) fakeUb = v.longValue() - 1;
long mid = (fakeLb + fakeUb) / 2;
assert mid < fakeUb;
results.add((int) mid);
fakeLb = mid;
}
}
final float useChance = rnd.nextFloat();
return Lists.newArrayList(filter(results, (x) -> rnd.nextFloat() < useChance));
}
public static String generateHallmark(String secretPhrase, String host, int weight, int date) {
if (host.length() == 0 || host.length() > 100) {
throw new IllegalArgumentException("Hostname length should be between 1 and 100");
}
if (weight <= 0 || weight > Constants.MAX_BALANCE_NXT) {
throw new IllegalArgumentException(
"Weight should be between 1 and " + Constants.MAX_BALANCE_NXT);
}
byte[] publicKey = Crypto.getPublicKey(secretPhrase);
byte[] hostBytes = Convert.toBytes(host);
ByteBuffer buffer = ByteBuffer.allocate(32 + 2 + hostBytes.length + 4 + 4 + 1);
buffer.order(ByteOrder.LITTLE_ENDIAN);
buffer.put(publicKey);
buffer.putShort((short) hostBytes.length);
buffer.put(hostBytes);
buffer.putInt(weight);
buffer.putInt(date);
byte[] data = buffer.array();
data[data.length - 1] = (byte) ThreadLocalRandom.current().nextInt();
byte[] signature = Crypto.sign(data, secretPhrase);
return Convert.toHexString(data) + Convert.toHexString(signature);
}
@Override
public List<FSM> apply(List<FSM> parents) {
int numberOfStates = parents.get(0).getNumberOfStates();
int numberOfEvents = parents.get(0).getNumberOfEvents();
List<String> events = parents.get(0).getEvents();
int point = ThreadLocalRandom.current().nextInt(parents.get(0).getNumberOfStates());
FSM.Transition[][] tr0 = new FSM.Transition[numberOfStates][numberOfEvents];
FSM.Transition[][] tr1 = new FSM.Transition[numberOfStates][numberOfEvents];
for (int state = 0; state < numberOfStates; state++) {
if (state < point) {
tr0[state] =
Arrays.copyOf(
parents.get(0).transitions[state], parents.get(0).transitions[state].length);
tr1[state] =
Arrays.copyOf(
parents.get(1).transitions[state], parents.get(1).transitions[state].length);
} else {
tr0[state] =
Arrays.copyOf(
parents.get(1).transitions[state], parents.get(1).transitions[state].length);
tr1[state] =
Arrays.copyOf(
parents.get(0).transitions[state], parents.get(0).transitions[state].length);
}
}
List<FSM> offspring = new ArrayList<FSM>();
offspring.add(new FSM(numberOfStates, tr0));
offspring.add(new FSM(numberOfStates, tr1));
return offspring;
}
/**
* 产生len个[min,max)随机数(jdk7)
*
* @param min
* @param max
* @param len
* @return
*/
public static int[] generateRandomArrayWithJava7(int min, int max, int len) {
int[] randomArray = new int[len];
for (int i = 0; i < len; i++) {
randomArray[i] = ThreadLocalRandom.current().nextInt(min, max);
}
return randomArray;
}
@Override
public CharSequence process(final Message message) throws MessageProcessingException {
if (!enabled) {
return null;
}
final Matcher m = COMMAND_PATTERN.matcher(message.getBody());
if (!m.matches()) {
return null;
}
final String userNick = MessageProcessorUtils.getUserNick(message);
final String dcString = m.group(1);
final String dsString = m.group(2);
if (dcString.length() > 4 || dsString.length() > 5) {
return userNick + ": я не настолько умная же! >_<\"";
}
final int diceCount = Integer.parseInt(dcString);
final int dieSides = Integer.parseInt(dsString);
final Random random = ThreadLocalRandom.current();
int result = 0;
for (int i = 0; i < diceCount; i++) {
result += random.nextInt(dieSides) + 1;
}
return userNick + ": Выпало " + result + ", такие дела, нян!";
}
/** ************************ TEST ACCESS ******************************************* */
@Test
public void testSearchIterator() throws InterruptedException {
final int perTreeSelections = 100;
testRandomSelection(
perThreadTrees,
perTreeSelections,
(test) -> {
IndexedSearchIterator<Integer, Integer> iter1 = test.testAsSet.iterator();
IndexedSearchIterator<Integer, Integer> iter2 = test.testAsList.iterator();
return (key) -> {
Integer found1 = iter1.hasNext() ? iter1.next(key) : null;
Integer found2 = iter2.hasNext() ? iter2.next(key) : null;
Assert.assertSame(found1, found2);
if (found1 != null) Assert.assertEquals(iter1.indexOfCurrent(), iter2.indexOfCurrent());
int index = Collections.binarySearch(test.canonicalList, key, test.comparator);
if (index < 0) {
Assert.assertNull(found1);
} else {
Assert.assertEquals(key, found1);
Assert.assertEquals(index, iter1.indexOfCurrent());
}
// check that by advancing the same key again we get null, but only do it on one of the
// two iterators
// to ensure they both advance differently
if (ThreadLocalRandom.current().nextBoolean()) Assert.assertNull(iter1.next(key));
else Assert.assertNull(iter2.next(key));
};
});
}
@Test
public void testSpeed() {
Random rnd = ThreadLocalRandom.current();
final int IMAGE_SIZE = 28;
final int BLOCK_COUNT = 10;
final int FEATURE_SIZE = 9;
final int FEATURE_COUNT = 10;
Feature[] features = new Feature[FEATURE_COUNT];
for (int f = 0; f < features.length; f++) {
final double mean = f < features.length / 2 ? 0.25 : 0.75;
features[f] = new Feature(FEATURE_SIZE, mean, 1, Math.pow(0.1, 2), 1);
}
byte[][] data = new byte[IMAGE_SIZE][IMAGE_SIZE];
for (int i = 0; i < data.length; i++) {
rnd.nextBytes(data[i]);
if (i < data.length / 2) {
for (int j = 0; j < data[i].length; j++) {
data[i][j] = (byte) (+Math.abs(data[i][j]));
}
} else {
for (int j = 0; j < data[i].length; j++) {
data[i][j] = (byte) (-Math.abs(data[i][j]));
}
}
}
ByteImage image = new ByteImage(data);
InferBlocks inferBlocks = new InferBlocks(IMAGE_SIZE, BLOCK_COUNT, features);
System.out.println("Calculating time...");
long ms = System.currentTimeMillis();
for (int s = 1; s <= 10; s++) {
inferBlocks.infer(image);
if (s % 10 == 0) {
System.out.println(
"Average time (" + s + "): " + (System.currentTimeMillis() - ms) / (double) s);
}
}
System.out.println(
"Block probs: " + StringUtils.arrayToString(inferBlocks.getBlockProbs(), ", "));
System.out.println(" X: " + StringUtils.arrayToString(inferBlocks.getBlockX(), ", "));
System.out.println(" Y: " + StringUtils.arrayToString(inferBlocks.getBlockY(), ", "));
for (int b = 0; b < BLOCK_COUNT; b++) {
System.out.println(
"Block #"
+ (b + 1)
+ " feature probs: "
+ StringUtils.arrayToString(inferBlocks.getBlockFeatureProbs()[b], ", "));
}
}
private static RandomTree randomTree(int minSize, int maxSize) {
// perform most of our tree constructions via update, as this is more efficient; since every run
// uses this
// we test builder disproportionately more often than if it had its own test anyway
return ThreadLocalRandom.current().nextFloat() < 0.95
? randomTreeByUpdate(minSize, maxSize)
: randomTreeByBuilder(minSize, maxSize);
}
private static IntFunction<Integer> twoDiceThrows() {
return i -> {
final ThreadLocalRandom random = ThreadLocalRandom.current();
final int firstThrow = random.nextInt(1, 7);
final int secondThrow = random.nextInt(1, 7);
return firstThrow + secondThrow;
};
}
private static Block createFixWidthValueBlock(int positionCount, int mapSize) {
BlockBuilder valueBlockBuilder =
DOUBLE.createBlockBuilder(new BlockBuilderStatus(), positionCount * mapSize);
for (int i = 0; i < positionCount * mapSize; i++) {
DOUBLE.writeDouble(valueBlockBuilder, ThreadLocalRandom.current().nextDouble());
}
return valueBlockBuilder.build();
}
private static String randomString(int length) {
String symbols = "abcdefghijklmnopqrstuvwxyz";
char[] chars = new char[length];
for (int i = 0; i < length; i++) {
chars[i] = symbols.charAt(ThreadLocalRandom.current().nextInt(symbols.length()));
}
return new String(chars);
}
@Override
public void offerSolution() {
FitInstance<Instance> solution = task.getFitInstance(stats.getBestInstance());
System.out.println("Offering solution with f = " + solution.getFitness());
otherAlgorithms
.get(ThreadLocalRandom.current().nextInt(otherAlgorithms.size()))
.acceptSolution(solution);
}
@Test
public void test() throws Exception {
MmsClient c = createAndConnect();
new Thread(
() -> {
while (received.size() < NUMBER_OF_MESSAGES) {
rndSleep(300, TimeUnit.MILLISECONDS);
t.closeIt();
}
})
.start();
final AtomicInteger ack = new AtomicInteger();
Runnable server =
new Runnable() {
public void run() {
int latestId = 0;
Integer ackIt = null;
while (received.size() < NUMBER_OF_MESSAGES) {
Message tm = t.take(Message.class);
if (tm instanceof Broadcast) {
Broadcast bs = (Broadcast) tm;
try {
BroadcastTestMessage hw = (BroadcastTestMessage) MmsMessage.tryRead(bs);
int id = hw.getId();
assertEquals(latestId++, id);
received.add(id);
} catch (Exception e) {
e.printStackTrace();
}
ackIt = null;
} else {
if (ackIt == null) {
ackIt = ThreadLocalRandom.current().nextInt(ack.get(), latestId + 1);
}
ack.set(ackIt);
latestId = ackIt;
t.send(new Connected().setSessionId(BIN1).setLastReceivedMessageId((long) ackIt));
}
}
}
};
Thread t = new Thread(server);
t.setUncaughtExceptionHandler((a, b) -> b.printStackTrace());
t.start();
for (int i = 0; i < NUMBER_OF_MESSAGES; i++) {
Thread.sleep(ThreadLocalRandom.current().nextLong(10));
c.broadcast(new BroadcastTestMessage().setId(i));
}
while (received.size() < NUMBER_OF_MESSAGES) {
Thread.sleep(10);
}
}
public static void main(String[] args) {
arrayToSearch = new int[N];
for (int i = 0; i < N; i++) {
arrayToSearch[i] = ThreadLocalRandom.current().nextInt(0, 1000);
}
ForkJoinPool pool = new ForkJoinPool(NUM_THREADS);
pool.invoke(new SearchTask(0, N - 1));
}
/**
* Generates random, smooth and perlin noise images
*
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
float[][] noise =
PerlinNoiseGenerator.whiteNoise(800, 800, ThreadLocalRandom.current().nextLong());
ImageIO.write(heightMapToImage(noise), "jpg", new File("noise.jpg"));
float[][] smooth = PerlinNoiseGenerator.smoothNoise(noise, 0);
ImageIO.write(heightMapToImage(smooth), "jpg", new File("smooth.jpg"));
float[][] perlin = PerlinNoiseGenerator.perlinNoise(noise, 15, 0.962F);
ImageIO.write(heightMapToImage(perlin), "jpg", new File("perlin.jpg"));
}