Example usage for java.util.concurrent Callable Callable

Introduction

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

Prototype

Callable

Source Link

Usage

From source file:com.wavemaker.app.build.maven.plugin.handler.VariableServiceDefGenerationHandler.java

private void buildServiceDefsForAllServices(final Folder servicesFolder) {
    if (servicesFolder.exists()) {
        List<Folder> serviceFolders = servicesFolder.list().folders().fetchAll();
        if (serviceFolders.size() > 0) {
            for (final Folder serviceFolder : serviceFolders) {
                serviceVsServiceDefs.put(serviceFolder.getName(),
                        executorService.submit(new Callable<Map<String, ServiceDefinition>>() {
                            @Override
                            public Map<String, ServiceDefinition> call() throws Exception {
                                return buildServiceDefs(serviceFolder);
                            }//  w  w w. jav  a 2s  .  co  m
                        }));
            }
        }
        for (String service : serviceVsServiceDefs.keySet()) {
            handleFutureIfException(serviceVsServiceDefs.get(service));
        }
    }
}

---

From source file:net.malisis.advert.advert.ServerAdvert.java

@Override
protected void downloadFile() {
    if (checkOldFile())
        return;/* w  w w .  ja  v  a 2s . com*/

    if (task != null && !task.isDone())
        return;

    task = threadPool.submit(new Callable<Void>() {
        @Override
        public Void call() throws Exception {
            byte[] img = null;
            try {
                img = Resources.toByteArray(new URL(url));
            } catch (Exception e) {
                setError(e.getMessage());
                MalisisAdvert.log.error(e);
            }

            writeFile(img);
            writeListing();
            sendImageData();
            return null;
        }
    });
}

---

From source file:org.waveprotocol.box.server.waveserver.SolrWaveIndexerImpl.java

@Override
public ListenableFuture<Void> onWaveInit(final WaveletName waveletName) {

    ListenableFutureTask<Void> task = ListenableFutureTask.create(new Callable<Void>() {

        @Override/*from  ww w. jav  a2  s  .com*/
        public Void call() throws Exception {
            ReadableWaveletData waveletData;
            try {
                waveletData = waveletDataProvider.getReadableWaveletData(waveletName);
                updateIndex(waveletData);
            } catch (WaveServerException e) {
                LOG.log(Level.SEVERE, "Failed to initialize index for " + waveletName, e);
                throw e;
            }
            return null;
        }
    });
    executor.execute(task);
    return task;
}

---

From source file:no.uis.fsws.proxy.StudinfoProxyImpl.java

@Override
@SneakyThrows/* ww  w.j av a 2s. c  o m*/
public List<Emne> getEmnerForOrgenhet(final XMLGregorianCalendar arstall, final Terminkode terminkode,
        final Sprakkode sprak, final int institusjonsnr, final Integer fakultetsnr, final Integer instituttnr,
        final Integer gruppenr) {
    final StudInfoImport svc = getServiceForPrincipal();
    Future<List<Emne>> future = executor.submit(new Callable<List<Emne>>() {

        @Override
        public List<Emne> call() throws Exception {
            final FsStudieinfo sinfo = svc.fetchSubjects(institusjonsnr,
                    fakultetsnr == null ? -1 : fakultetsnr.intValue(), arstall.getYear(), terminkode.toString(),
                    sprak.toString());
            return sinfo.getEmne();
        }
    });

    return future.get(timeoutMinutes, TimeUnit.MINUTES);
}

---

From source file:com.netflix.curator.framework.recipes.cache.TestNodeCache.java

@Test
public void testRebuildAgainstOtherProcesses() throws Exception {
    NodeCache cache = null;//from  w  w  w .j  ava 2 s  .co m
    final CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
            new RetryOneTime(1));
    client.start();
    try {
        client.create().forPath("/test");
        client.create().forPath("/test/snafu", "original".getBytes());

        final CountDownLatch latch = new CountDownLatch(1);
        cache = new NodeCache(client, "/test/snafu");
        cache.getListenable().addListener(new NodeCacheListener() {
            @Override
            public void nodeChanged() throws Exception {
                latch.countDown();
            }
        });
        cache.rebuildTestExchanger = new Exchanger<Object>();

        ExecutorService service = Executors.newSingleThreadExecutor();
        final NodeCache finalCache = cache;
        Future<Object> future = service.submit(new Callable<Object>() {
            @Override
            public Object call() throws Exception {
                finalCache.rebuildTestExchanger.exchange(new Object(), 10, TimeUnit.SECONDS);

                // simulate another process updating the node while we're rebuilding
                client.setData().forPath("/test/snafu", "other".getBytes());

                ChildData currentData = finalCache.getCurrentData();
                Assert.assertNotNull(currentData);

                finalCache.rebuildTestExchanger.exchange(new Object(), 10, TimeUnit.SECONDS);

                return null;
            }
        });
        cache.start(false);
        future.get();

        Assert.assertTrue(latch.await(10, TimeUnit.SECONDS));
        Assert.assertNotNull(cache.getCurrentData());
        Assert.assertEquals(cache.getCurrentData().getData(), "other".getBytes());
    } finally {
        IOUtils.closeQuietly(cache);
        IOUtils.closeQuietly(client);
    }
}

---

From source file:net.i2cat.netconf.messageQueue.MessageQueue.java

/**
 * Wait for a new message with the id <code>messageId</code> to arrive in the queue.
 *
 * @param messageId a string identifying the message to consume.
 * @param timeout a long indicating the length of the timeout in milliseconds. If zero or less, no timeout.
 * @throws Exception an UncheckedTimeoutException if there is no message with <code>messageId</code> after waiting for the specified timeout.
 * @return//ww w. j  av a 2s .com
 */
public RPCElement blockingConsumeById(String messageId, long timeout) throws Exception {

    final String messageIdFinal = messageId;
    Callable<RPCElement> consumeCaller = new Callable<RPCElement>() {
        public RPCElement call() throws Exception {
            RPCElement element;
            synchronized (queue) {
                while ((element = consumeById(messageIdFinal)) == null) {
                    try {
                        log.debug("Waiting (" + messageIdFinal + ")...");
                        queue.wait();
                    } catch (InterruptedException e) {
                        // Do nothing. It's probably a timeout.
                    }
                }
            }
            return element;
        }
    };

    if (timeout <= 0) {
        return consumeCaller.call();
    }

    SimpleTimeLimiter timeLimiter = new SimpleTimeLimiter();

    try {
        return timeLimiter.callWithTimeout(consumeCaller, timeout, TimeUnit.MILLISECONDS, true);
    } catch (UncheckedTimeoutException e) {
        log.debug("BlockingConsumeById(messageId=" + messageId + ") failed due to timeout.", e);
        throw e;
    } catch (Exception e) {
        log.debug("BlockingConsumeById(messageId=" + messageId + ") failed.", e);
        throw e;
    }
}

---

From source file:net.bhira.sample.api.controller.CompanyController.java

/**
 * Fetch the instance of {@link net.bhira.sample.model.Company} represented by given companyId
 * and return it as JSON object./*from   w w w  .ja v a 2 s .com*/
 * 
 * @param companyId
 *            the ID for {@link net.bhira.sample.model.Company}.
 * @param response
 *            the http response to which the results will be written.
 * @return an instance of {@link net.bhira.sample.model.Company} as JSON.
 */
@RequestMapping(value = "/company/{companyId}", method = RequestMethod.GET)
@ResponseBody
public Callable<String> getCompany(@PathVariable long companyId, HttpServletResponse response) {
    return new Callable<String>() {
        public String call() throws Exception {
            String body = "";
            try {
                LOG.debug("servicing GET company/{}", companyId);
                Company company = companyService.load(companyId);
                LOG.debug("GET company/{}, found = {}", companyId, company != null);
                if (company == null) {
                    response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                } else {
                    body = JsonUtil.createGson().toJson(company);
                }
            } catch (Exception ex) {
                response.setStatus(HttpServletResponse.SC_FORBIDDEN);
                body = ex.getLocalizedMessage();
                LOG.warn("Error loading company/{}. {}", companyId, body);
                LOG.debug("Load error stacktrace: ", ex);
            }
            return body;
        }
    };
}

---

From source file:com.graphhopper.jsprit.analysis.toolbox.ConcurrentBenchmarker.java

public void run() {
    System.out.println("start benchmarking [nuOfInstances=" + benchmarkInstances.size() + "][runsPerInstance="
            + runs + "]");
    double startTime = System.currentTimeMillis();
    ExecutorService executor = Executors.newFixedThreadPool(Runtime.getRuntime().availableProcessors() + 1);
    List<Future<BenchmarkResult>> futures = new ArrayList<Future<BenchmarkResult>>();
    for (final BenchmarkInstance p : benchmarkInstances) {

        Future<BenchmarkResult> futureResult = executor.submit(new Callable<BenchmarkResult>() {

            @Override/*ww w. ja  va  2  s .co m*/
            public BenchmarkResult call() throws Exception {
                return runAlgoAndGetResult(p);
            }

        });
        futures.add(futureResult);

    }
    try {
        int count = 1;
        for (Future<BenchmarkResult> f : futures) {
            BenchmarkResult r = f.get();
            print(r, count);
            results.add(f.get());
            count++;
        }
    } catch (InterruptedException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (ExecutionException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    executor.shutdown();
    print(results);
    System.out.println("done [time=" + (System.currentTimeMillis() - startTime) / 1000 + "sec]");
}

---

From source file:com.cloudera.alfredo.server.TestKerberosAuthenticationHandler.java

public void testRequestWithAuthorization() throws Exception {
    String token = KerberosTestUtils.doAsClient(new Callable<String>() {
        @Override/*from   w  ww . ja  v a  2  s  .  c om*/
        public String call() throws Exception {
            GSSManager gssManager = GSSManager.getInstance();
            GSSContext gssContext = null;
            try {
                String servicePrincipal = KerberosTestUtils.getServerPrincipal();
                GSSName serviceName = gssManager.createName(servicePrincipal, GSSUtil.NT_GSS_KRB5_PRINCIPAL);
                gssContext = gssManager.createContext(serviceName, GSSUtil.GSS_KRB5_MECH_OID, null,
                        GSSContext.DEFAULT_LIFETIME);
                gssContext.requestCredDeleg(true);
                gssContext.requestMutualAuth(true);

                byte[] inToken = new byte[0];
                byte[] outToken = gssContext.initSecContext(inToken, 0, inToken.length);
                Base64 base64 = new Base64(0);
                return base64.encodeToString(outToken);

            } finally {
                if (gssContext != null) {
                    gssContext.dispose();
                }
            }
        }
    });

    HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
    HttpServletResponse response = Mockito.mock(HttpServletResponse.class);

    Mockito.when(request.getHeader(KerberosAuthenticator.AUTHORIZATION))
            .thenReturn(KerberosAuthenticator.NEGOTIATE + " " + token);

    AuthenticationToken authToken = handler.authenticate(request, response);

    if (authToken != null) {
        Mockito.verify(response).setHeader(Mockito.eq(KerberosAuthenticator.WWW_AUTHENTICATE),
                Mockito.matches(KerberosAuthenticator.NEGOTIATE + " .*"));
        Mockito.verify(response).setStatus(HttpServletResponse.SC_OK);

        assertEquals(KerberosTestUtils.getClientPrincipal(), authToken.getName());
        assertTrue(KerberosTestUtils.getClientPrincipal().startsWith(authToken.getUserName()));
        assertEquals(KerberosAuthenticationHandler.TYPE, authToken.getType());
    } else {
        Mockito.verify(response).setHeader(Mockito.eq(KerberosAuthenticator.WWW_AUTHENTICATE),
                Mockito.matches(KerberosAuthenticator.NEGOTIATE + " .*"));
        Mockito.verify(response).setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    }
}

---

From source file:com.link_intersystems.lang.ContextAwareTest.java

@Test(expected = IOException.class)
public void callable() throws Exception {
    final TestContextAware contextAware = new TestContextAware();
    try {/* w  w w .ja  v  a2s .co m*/
        contextAware.runInContext(new Callable<String>() {

            public String call() throws Exception {
                assertTrue(contextAware.isActivated());
                throw new IOException();
            }
        });
    } catch (Exception e) {
        throw e;
    }

    assertFalse(contextAware.isActivated());
}

---

• «
• 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
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »