Example usage for java.util.concurrent.atomic AtomicInteger AtomicInteger

Introduction

In this page you can find the example usage for java.util.concurrent.atomic AtomicInteger AtomicInteger.

Prototype

public AtomicInteger(int initialValue) 

Source Link

Document

Creates a new AtomicInteger with the given initial value.

Usage

From source file:com.intel.cosbench.driver.generator.RangeIntGenerator.java

private synchronized void init(int all) {
    if (cursors != null)
        return;/*from   w  w  w .j av  a 2  s . co  m*/

    this.cursors = new AtomicInteger[all];

    for (int i = 0; i < all; i++) {
        cursors[i] = new AtomicInteger(0);
    }
}

---

From source file:cz.cvut.kbss.jsonld.jackson.serialization.JacksonJsonWriterTest.java

@Test(expected = IllegalArgumentException.class)
public void writeNumberInvalidThrowsIllegalArgumentException() throws Exception {
    final AtomicInteger number = new AtomicInteger(1);
    writer.writeNumber(number);//from   ww  w .j a v  a  2 s  . c o  m
}

---

From source file:com.netflix.curator.framework.recipes.locks.TestInterProcessSemaphoreCluster.java

@Test
public void testKilledServerWithEnsembleProvider() throws Exception {
    final int CLIENT_QTY = 10;
    final Timing timing = new Timing();
    final String PATH = "/foo/bar/lock";

    ExecutorService executorService = Executors.newFixedThreadPool(CLIENT_QTY);
    ExecutorCompletionService<Void> completionService = new ExecutorCompletionService<Void>(executorService);
    TestingCluster cluster = new TestingCluster(3);
    try {/*  www.  j a  v  a  2 s.  c om*/
        cluster.start();

        final AtomicReference<String> connectionString = new AtomicReference<String>(
                cluster.getConnectString());
        final EnsembleProvider provider = new EnsembleProvider() {
            @Override
            public void start() throws Exception {
            }

            @Override
            public String getConnectionString() {
                return connectionString.get();
            }

            @Override
            public void close() throws IOException {
            }
        };

        final Semaphore acquiredSemaphore = new Semaphore(0);
        final AtomicInteger acquireCount = new AtomicInteger(0);
        final CountDownLatch suspendedLatch = new CountDownLatch(CLIENT_QTY);
        for (int i = 0; i < CLIENT_QTY; ++i) {
            completionService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {
                    CuratorFramework client = CuratorFrameworkFactory.builder().ensembleProvider(provider)
                            .sessionTimeoutMs(timing.session()).connectionTimeoutMs(timing.connection())
                            .retryPolicy(new ExponentialBackoffRetry(100, 3)).build();
                    try {
                        final Semaphore suspendedSemaphore = new Semaphore(0);
                        client.getConnectionStateListenable().addListener(new ConnectionStateListener() {
                            @Override
                            public void stateChanged(CuratorFramework client, ConnectionState newState) {
                                if ((newState == ConnectionState.SUSPENDED)
                                        || (newState == ConnectionState.LOST)) {
                                    suspendedLatch.countDown();
                                    suspendedSemaphore.release();
                                }
                            }
                        });

                        client.start();

                        InterProcessSemaphoreV2 semaphore = new InterProcessSemaphoreV2(client, PATH, 1);

                        while (!Thread.currentThread().isInterrupted()) {
                            Lease lease = null;
                            try {
                                lease = semaphore.acquire();
                                acquiredSemaphore.release();
                                acquireCount.incrementAndGet();
                                suspendedSemaphore.acquire();
                            } catch (Exception e) {
                                // just retry
                            } finally {
                                if (lease != null) {
                                    acquireCount.decrementAndGet();
                                    IOUtils.closeQuietly(lease);
                                }
                            }
                        }
                    } finally {
                        IOUtils.closeQuietly(client);
                    }
                    return null;
                }
            });
        }

        Assert.assertTrue(timing.acquireSemaphore(acquiredSemaphore));
        Assert.assertEquals(1, acquireCount.get());

        cluster.close();
        timing.awaitLatch(suspendedLatch);
        timing.forWaiting().sleepABit();
        Assert.assertEquals(0, acquireCount.get());

        cluster = new TestingCluster(3);
        cluster.start();

        connectionString.set(cluster.getConnectString());
        timing.forWaiting().sleepABit();

        Assert.assertTrue(timing.acquireSemaphore(acquiredSemaphore));
        timing.forWaiting().sleepABit();
        Assert.assertEquals(1, acquireCount.get());
    } finally {
        executorService.shutdown();
        executorService.awaitTermination(10, TimeUnit.SECONDS);
        executorService.shutdownNow();
        IOUtils.closeQuietly(cluster);
    }
}

---

From source file:com.indeed.lsmtree.recordcache.StandalonePersistentRecordCache.java

private StandalonePersistentRecordCache(final Store<K, V> index, final File checkpointDir) throws IOException {
    this.index = index;
    indexUpdateFunctions = new RecordLogDirectoryPoller.Functions() {

        AtomicLong indexPutTime = new AtomicLong(0);

        AtomicLong indexDeleteTime = new AtomicLong(0);

        AtomicInteger indexPuts = new AtomicInteger(0);

        AtomicInteger indexDeletes = new AtomicInteger(0);

        AtomicInteger count = new AtomicInteger(0);

        @Override/*w ww  .  j a  va 2s  .c om*/
        public void process(final long position, Operation op) throws IOException {

            count.incrementAndGet();
            if (count.get() % 1000 == 0) {
                final int puts = indexPuts.get();
                if (log.isDebugEnabled() && puts > 0) {
                    log.debug("avg index put time: " + indexPutTime.get() / puts / 1000d + " us");
                }
                final int deletes = indexDeletes.get();
                if (log.isDebugEnabled() && deletes > 0) {
                    log.debug("avg index delete time: " + indexDeleteTime.get() / deletes / 1000d + " us");
                }
            }

            if (op.getClass() == Put.class) {
                final Put<K, V> put = (Put) op;
                final long start = System.nanoTime();
                synchronized (index) {
                    index.put(put.getKey(), put.getValue());
                }
                indexPutTime.addAndGet(System.nanoTime() - start);
                indexPuts.incrementAndGet();
            } else if (op.getClass() == Delete.class) {
                final Delete<K> delete = (Delete) op;
                for (K k : delete.getKeys()) {
                    final long start = System.nanoTime();
                    synchronized (index) {
                        index.delete(k);
                    }
                    indexDeleteTime.addAndGet(System.nanoTime() - start);
                    indexDeletes.incrementAndGet();
                }
            } else if (op.getClass() == Checkpoint.class) {
                final Checkpoint checkpoint = (Checkpoint) op;
                if (checkpointDir != null) {
                    sync();
                    index.checkpoint(new File(checkpointDir, String.valueOf(checkpoint.getTimestamp())));
                }
            } else {
                log.warn("operation class unknown");
            }
        }

        @Override
        public void sync() throws IOException {
            final long start = System.nanoTime();
            index.sync();
            log.debug("sync time: " + (System.nanoTime() - start) / 1000d + " us");
        }
    };
}

---

From source file:dk.statsbiblioteket.util.JobControllerTest.java

public void testEmptyPop() throws Exception {
    final AtomicInteger counter = new AtomicInteger(0);
    JobController<Long> controller = new JobController<Long>(10) {
        @Override/* ww  w .  ja va  2  s  . co  m*/
        protected void afterExecute(Future<Long> finished) {
            counter.incrementAndGet();
        }
    };
    assertTrue("Popping on empty should return empty list",
            controller.popAll(10, TimeUnit.MILLISECONDS).isEmpty());
    assertEquals("The callback count should zero on empty controller", 0, counter.get());
}

---

From source file:org.ujorm.orm.support.UjormTransactionManager.java

/**
 *
 * @return true pokud je na zacatku deep 0 tedy jde o prvni vstup do sluzebni vrstvy
 */// www . jav a2s. com
private boolean incCalling() {
    if (deep == null) {
        deep = new AtomicInteger(1);
        return true;
    } else {
        deep.incrementAndGet();
        return false;
    }
}

---

From source file:strat.mining.multipool.stats.service.impl.RequestStatsLoggingServiceImpl.java

@Override
public void donnatorRequest(String bitcoinAddress) {
    AtomicInteger counter = donatorsRequests.get(bitcoinAddress);
    if (counter == null) {
        counter = new AtomicInteger(0);
        donatorsRequests.put(bitcoinAddress, counter);
    }/*from  w ww  .  j  av a2  s.  com*/
    counter.incrementAndGet();
}

---

From source file:net.nfpj.webcounter.dm.MemCounterDM.java

@Override
public Counter increment(String name, boolean createIfNotExist) {
    if (name == null || name.isEmpty()) {
        throw new NullPointerException("Name cannot be null");
    }//from  ww w  .  j  a  v a2 s.com
    AtomicInteger ai = counters.get(name);
    if (ai == null) {
        if (createIfNotExist) {
            AtomicInteger existing = counters.putIfAbsent(name, ai = new AtomicInteger(0));
            if (existing != null) {
                ai = existing;
            }
        } else {
            return null;
        }
    }
    return new Counter(name, ai.incrementAndGet());
}

---

From source file:com.flipkart.bifrost.ListenTest.java

@Test
public void testSendReceive() throws Exception {
    ObjectMapper mapper = new ObjectMapper();
    mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
    mapper.setSerializationInclusion(JsonInclude.Include.NON_EMPTY);

    Connection connection = new Connection(Lists.newArrayList("localhost"), "guest", "guest");
    connection.start();/* ww  w. java2  s.  c  o  m*/

    BifrostExecutor<Void> executor = BifrostExecutor.<Void>builder(TestAction.class).connection(connection)
            .objectMapper(mapper).requestQueue("bifrost-send").responseQueue("bifrost-recv").concurrency(20)
            .executorService(Executors.newFixedThreadPool(20)).build();

    BifrostRemoteCallExecutionServer<Void> executionServer = BifrostRemoteCallExecutionServer
            .<Void>builder(TestAction.class).objectMapper(mapper).connection(connection).concurrency(20)
            .requestQueue("bifrost-send").build();
    executionServer.start();

    long startTime = System.currentTimeMillis();
    AtomicInteger counter = new AtomicInteger(0);
    int requestCount = 1000000;
    CompletionService<Void> ecs = new ExecutorCompletionService<>(Executors.newFixedThreadPool(50));
    List<Future<Void>> futures = Lists.newArrayListWithCapacity(requestCount);
    for (int i = 0; i < requestCount; i++) {
        futures.add(ecs.submit(new ServiceCaller(executor, counter)));
    }
    for (int i = 0; i < requestCount; i++) {
        try {
            ecs.take().get();
        } catch (ExecutionException e) {
            e.printStackTrace();
        }
    }
    while (counter.get() != requestCount)
        ;
    System.out.println(
            String.format("Completed: %d in %d ms", counter.get(), (System.currentTimeMillis() - startTime)));
    executor.shutdown();
    executionServer.stop();
    connection.stop();

    Assert.assertEquals(requestCount, counter.get());
}

---

From source file:io.cloudslang.orchestrator.services.OrchestratorDispatcherServiceImpl.java

private void dispatch(List<? extends Serializable> messages) {
    Validate.notNull(messages, "Messages list is null");

    if (logger.isDebugEnabled())
        logger.debug("Dispatching " + messages.size() + " messages");
    long t = System.currentTimeMillis();
    final AtomicInteger messagesCounter = new AtomicInteger(0);

    dispatch(messages, ExecutionMessage.class, new Handler<ExecutionMessage>() {
        @Override//from   w w w  .j a  v  a 2s  .  co  m
        public void handle(List<ExecutionMessage> messages) {
            messagesCounter.addAndGet(messages.size());
            queueDispatcher.dispatch(messages);
        }
    });

    dispatch(messages, SplitMessage.class, new Handler<SplitMessage>() {
        @Override
        public void handle(List<SplitMessage> messages) {
            messagesCounter.addAndGet(messages.size());
            splitJoinService.split(messages);
        }
    });

    t = System.currentTimeMillis() - t;
    if (logger.isDebugEnabled())
        logger.debug("Dispatching " + messagesCounter.get() + " messages is done in " + t + " ms");
    if (messages.size() > messagesCounter.get()) {
        logger.warn((messages.size() - messagesCounter.get())
                + " messages were not being dispatched, since unknown type");
    }
}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• »