Example usage for java.util.concurrent Callable Callable

List of usage examples for java.util.concurrent Callable Callable

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Introduction

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

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Callable

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Usage

From source file:com.microsoft.windowsazure.management.compute.ComputeManagementIntegrationTestBase.java

protected static void createStorageManagementClient() throws Exception {
    Configuration config = createConfiguration();
    storageManagementClient = StorageManagementService.create(config);
    addClient((ServiceClient<?>) storageManagementClient, new Callable<Void>() {
        @Override/*from  ww  w  .j ava2s. c  o m*/
        public Void call() throws Exception {
            createStorageManagementClient();
            return null;
        }
    });
    addRegexRule("storageservices/aztst[a-z]{10}");
}

From source file:es.upv.grycap.coreutils.fiber.test.FetchCancellationTest.java

@Test
public void testFetch() throws Exception {
    // create fetcher
    final HttpDataFetcher fetcher = new HttpDataFetcher(2);
    assertThat("Fetcher was created", fetcher, notNullValue());

    // create output folder
    final File outDir = tmpFolder.newFolder(randomAlphanumeric(12));
    assertThat("Output dir was created", outDir, notNullValue());
    assertThat("Output dir is writable", outDir.canWrite());

    // submit request and cancel
    final ExecutorService executorService = Executors.newFixedThreadPool(2);
    final Future<Map<String, FetchStatus>> future = executorService
            .submit(new Callable<Map<String, FetchStatus>>() {
                @Override/*ww w.ja va 2  s  .  c o m*/
                public Map<String, FetchStatus> call() throws Exception {
                    return AsyncCompletionStage
                            .get(fetcher.fetchToDir(new URL(MOCK_SERVER_BASE_URL + "/fetch/long-waiting"),
                                    ImmutableList.of("1"), outDir), 120000l, TimeUnit.SECONDS);
                }
            });
    assertThat("Request was cancelled", future.cancel(true));
    assertThat("File does not exist", not(new File(outDir, "1").exists()));
}

From source file:cn.vko.cache.dao.ha.FailoverMonitorJob.java

@Override
public void run() {
    Future<Integer> future = executor.submit(new Callable<Integer>() {
        @Override/*from  w  w  w  .  j  a va 2 s .c om*/
        public Integer call() throws Exception {
            Integer result = -1;

            for (int i = 0; i < getRecheckTimes(); i++) {
                Connection conn = null;
                try {
                    conn = getCurrentDetectorDataSource().getConnection();
                    PreparedStatement pstmt = conn.prepareStatement(getDetectingSQL());
                    pstmt.execute();
                    pstmt.close();
                    result = 0;
                    break;
                } catch (Exception e) {
                    logger.warn("(" + (i + 1) + ") check with failure. sleep (" + getRecheckInterval()
                            + ") for next round check.");
                    try {
                        TimeUnit.MILLISECONDS.sleep(getRecheckInterval());
                    } catch (InterruptedException e1) {
                        logger.warn("interrupted when waiting for next round rechecking.");
                    }
                    continue;
                } finally {
                    if (conn != null) {
                        try {
                            conn.close();
                        } catch (SQLException e) {
                            logger.warn("failed to close checking connection:\n", e);
                        }
                    }
                }
            }
            return result;
        }
    });

    try {
        Integer result = future.get(getDetectingRequestTimeout(), TimeUnit.MILLISECONDS);
        if (result == -1) {
            doSwap();
        }
    } catch (InterruptedException e) {
        logger.warn("interrupted when getting query result in FailoverMonitorJob.");
    } catch (ExecutionException e) {
        logger.warn("exception occured when checking failover status in FailoverMonitorJob");
    } catch (TimeoutException e) {
        logger.warn("exceed DetectingRequestTimeout threshold. Switch to standby data source.");
        doSwap();
    }
}

From source file:com.rogiel.httpchannel.http.Request.java

public Future<Page> asPageAsync() throws IOException {
    return ctx.threadPool.submit(new Callable<Page>() {
        @Override/*from   w  ww.j av  a 2s  . co m*/
        public Page call() throws Exception {
            return asPage();
        }
    });
}

From source file:com.alibaba.cobar.client.datasources.ha.FailoverMonitorJob.java

public void run() {
    Future<Integer> future = executor.submit(new Callable<Integer>() {

        public Integer call() throws Exception {
            Integer result = -1;/*from w w w .  j ava  2 s. c  o  m*/

            for (int i = 0; i < getRecheckTimes(); i++) {
                Connection conn = null;
                try {
                    conn = getCurrentDetectorDataSource().getConnection();
                    PreparedStatement pstmt = conn.prepareStatement(getDetectingSQL());
                    pstmt.execute();
                    if (pstmt != null) {
                        pstmt.close();
                    }
                    result = 0;
                    break;
                } catch (Exception e) {
                    logger.warn("(" + (i + 1) + ") check with failure. sleep (" + getRecheckInterval()
                            + ") for next round check.");
                    try {
                        TimeUnit.MILLISECONDS.sleep(getRecheckInterval());
                    } catch (InterruptedException e1) {
                        logger.warn("interrupted when waiting for next round rechecking.");
                    }
                    continue;
                } finally {
                    if (conn != null) {
                        try {
                            conn.close();
                        } catch (SQLException e) {
                            logger.warn("failed to close checking connection:\n", e);
                        }
                    }
                }
            }
            return result;
        }
    });

    try {
        Integer result = future.get(getDetectingRequestTimeout(), TimeUnit.MILLISECONDS);
        if (result == -1) {
            doSwap();
        }
    } catch (InterruptedException e) {
        logger.warn("interrupted when getting query result in FailoverMonitorJob.");
    } catch (ExecutionException e) {
        logger.warn("exception occured when checking failover status in FailoverMonitorJob");
    } catch (TimeoutException e) {
        logger.warn("exceed DetectingRequestTimeout threshold. Switch to standby data source.");
        doSwap();
    }
}

From source file:mx.com.gaby.controller.HomeController.java

@RequestMapping(value = "/views/async", method = RequestMethod.GET)
public Callable<String> getViewAsyncWay() {
    return new Callable<String>() {
        @Override/*from   w  w w .j  a va2  s .  co m*/
        public String call() throws Exception {
            Thread.sleep(5000);
            return "redir";
        }
    };
}

From source file:biz.c24.io.spring.integration.samples.fpml.PreRenderingFpmlGenerator.java

private List<Generator> preRender() throws Exception {

    List<Generator> result = new ArrayList<Generator>(THREADS);

    final TradeConfirmed tradeConfirmed = readTradeConfirmed();

    ExecutorCompletionService<Generator> completionService = new ExecutorCompletionService<Generator>(
            Executors.newFixedThreadPool(THREADS));

    for (int i = 0; i < THREADS; i++) {
        completionService.submit(new Callable<Generator>() {

            public Generator call() throws Exception {
                System.out.println("Rendering... ");

                OutputType ot = OutputType.BYTE_ARRAY;
                Random rand = new Random();
                TradeConfirmed myTradeConfirmed = (TradeConfirmed) tradeConfirmed.cloneDeep();

                Generator gen = new Generator();

                List<Object> payloads = new ArrayList<Object>(ITERATIONS);

                for (int j = 0; j < ITERATIONS; j++) {

                    TradeConfirmed fpML = randomizeFpML(myTradeConfirmed);

                    if (rand.nextInt(100) == 0) {
                        breakFpml(fpML);
                    }//from w  w w . j av  a2 s. c o  m

                    Sink sink = ot.getSink(sinkFactory);
                    sink.writeObject(fpML);
                    Object payload = ot.getOutput(sink);

                    payloads.add(payload);
                }

                gen.payloads = payloads;

                return gen;
            }
        });
    }

    for (int i = 0; i < THREADS; i++) {
        Future<Generator> future = completionService.take();
        result.add(future.get());
    }

    return result;

}

From source file:com.atomicleopard.thundr.ftp.FtpSession.java

public boolean putFile(final String filename, final InputStream is) {
    return timeLogAndCatch("Put file", new Callable<Boolean>() {
        @Override//from  w  w  w .j a  v  a 2 s .co  m
        public Boolean call() throws Exception {
            return preparedClient.storeFile(filename, is);
        }
    });
}

From source file:com.tesobe.obp.transport.spi.ConnectorNov2016Test.java

@Before
public void connector() {
    Transport.Factory factory = Transport.factory(Transport.Version.Nov2016, Transport.Encoding.json)
            .map(Function.identity()).orElseThrow(IllegalArgumentException::new);
    Receiver receiver = new ReceiverNov2016(new MockResponder(), factory.codecs());
    final BlockingQueue<String> in = new SynchronousQueue<>();
    final BlockingQueue<Message> out = new SynchronousQueue<>();
    final Sender sender = request -> {
        out.put(request);/*  w  w w  .ja v  a 2s  .  c o m*/

        return in.take();
    };

    // north: sender
    connector = factory.connector(sender);

    // south: receiver in a background thread
    service.submit(new Callable<Void>() {
        @Override
        @SuppressWarnings({ "InfiniteLoopStatement" })
        public Void call() throws InterruptedException {
            for (;;) {
                in.put(receiver.respond(out.take()));
            }
        }
    });
}

From source file:de.tbuchloh.kiskis.cracker.PasswordCracker.java

public String crackPassword() {
    final Long totalEstimation = _passwordCreator.estimateTotalCount();
    _progressListener.notifyTotalCount(totalEstimation);
    _progressListener.notifyStartTime(System.currentTimeMillis());

    final AtomicBoolean found = new AtomicBoolean(false);
    final Callable<String> callable = new Callable<String>() {

        @Override// ww  w .  j a va  2  s .  c  o m
        public String call() throws Exception {
            String guess;
            while (!found.get() && (guess = _passwordCreator.create()) != null) {
                _progressListener.notifyTry(guess);
                if (_tester.test(guess)) {
                    found.set(true);
                    return guess;
                }
            }
            return null;
        }
    };

    final int cpus = ManagementFactory.getOperatingSystemMXBean().getAvailableProcessors();
    LOG.info(String.format("Found %1$d cpus ...", cpus));
    final ExecutorService threadPool = Executors.newFixedThreadPool(cpus);
    final Collection<Callable<String>> tasks = new ArrayList<Callable<String>>();
    for (int i = 0; i < cpus; ++i) {
        tasks.add(callable);
    }
    try {
        final List<Future<String>> futures = threadPool.invokeAll(tasks);
        for (final Future<String> future : futures) {
            final String guessedPwd = future.get();
            if (guessedPwd != null) {
                return guessedPwd;
            }
        }
        return null;
    } catch (final InterruptedException e) {
        throw new KisKisRuntimeException("InterruptedException", e);
    } catch (final ExecutionException e) {
        throw new KisKisRuntimeException("ExecutionException", e);
    }
}