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:apiserver.services.images.controllers.ImageController.java

/**
 * get basic info about image./*from   www  .  j a va2  s. com*/
 * @param documentId cache id
 * @return   height,width, pixel size, transparency
 * , @RequestPart("meta-data") Object metadata
 *
, @RequestParam MultipartFile file
        
 */
@ApiOperation(value = "Get the height and width for the image", responseClass = "java.util.Map")
@RequestMapping(value = "/info/{documentId}/size", method = { RequestMethod.GET })
public WebAsyncTask<ResponseEntity<Map>> imageInfoByImageAsync(
        @ApiParam(name = "documentId", required = true, defaultValue = "8D981024-A297-4169-8603-E503CC38EEDA") @PathVariable(value = "documentId") String documentId)
        throws ExecutionException, TimeoutException, InterruptedException {
    final String _documentId = documentId;

    Callable<ResponseEntity<Map>> callable = new Callable<ResponseEntity<Map>>() {
        @Override
        public ResponseEntity<Map> call() throws Exception {
            FileInfoJob args = new FileInfoJob();
            args.setDocumentId(_documentId);

            Future<Map> imageFuture = gateway.imageSize(args);
            Map payload = imageFuture.get(defaultTimeout, TimeUnit.MILLISECONDS);

            HttpHeaders headers = new HttpHeaders();
            headers.setContentType(MediaType.APPLICATION_JSON);
            ResponseEntity<Map> result = new ResponseEntity<Map>(payload, headers, HttpStatus.OK);
            return result;
        }
    };

    return new WebAsyncTask<ResponseEntity<Map>>(defaultTimeout, callable);
}

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From source file:com.netflix.curator.framework.recipes.queue.TestBoundedDistributedQueue.java

@SuppressWarnings("SynchronizationOnLocalVariableOrMethodParameter")
@Test/*ww w .j  a  v a 2  s.  c  o  m*/
public void testMulti() throws Exception {
    final String PATH = "/queue";
    final int CLIENT_QTY = 4;
    final int MAX_ITEMS = 10;
    final int ADD_ITEMS = MAX_ITEMS * 100;
    final int SLOP_FACTOR = 2;

    final QueueConsumer<String> consumer = new QueueConsumer<String>() {
        @Override
        public void consumeMessage(String message) throws Exception {
            Thread.sleep(10);
        }

        @Override
        public void stateChanged(CuratorFramework client, ConnectionState newState) {
        }
    };

    final Timing timing = new Timing();
    final ExecutorService executor = Executors.newCachedThreadPool();
    ExecutorCompletionService<Void> completionService = new ExecutorCompletionService<Void>(executor);

    final CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
            timing.session(), timing.connection(), new RetryOneTime(1));
    try {
        client.start();
        client.create().forPath(PATH);

        final CountDownLatch isWaitingLatch = new CountDownLatch(1);
        final AtomicBoolean isDone = new AtomicBoolean(false);
        final List<Integer> counts = new CopyOnWriteArrayList<Integer>();
        final Object lock = new Object();
        executor.submit(new Callable<Void>() {
            @Override
            public Void call() throws Exception {
                Watcher watcher = new Watcher() {
                    @Override
                    public void process(WatchedEvent event) {
                        synchronized (lock) {
                            lock.notifyAll();
                        }
                    }
                };

                while (!Thread.currentThread().isInterrupted() && client.isStarted() && !isDone.get()) {
                    synchronized (lock) {
                        int size = client.getChildren().usingWatcher(watcher).forPath(PATH).size();
                        counts.add(size);
                        isWaitingLatch.countDown();
                        lock.wait();
                    }
                }
                return null;
            }
        });
        isWaitingLatch.await();

        for (int i = 0; i < CLIENT_QTY; ++i) {
            final int index = i;
            completionService.submit(new Callable<Void>() {
                @Override
                public Void call() throws Exception {
                    CuratorFramework client = null;
                    DistributedQueue<String> queue = null;

                    try {
                        client = CuratorFrameworkFactory.newClient(server.getConnectString(), timing.session(),
                                timing.connection(), new RetryOneTime(1));
                        client.start();
                        queue = QueueBuilder.builder(client, consumer, serializer, PATH).executor(executor)
                                .maxItems(MAX_ITEMS).putInBackground(false).lockPath("/locks").buildQueue();
                        queue.start();

                        for (int i = 0; i < ADD_ITEMS; ++i) {
                            queue.put("" + index + "-" + i);
                        }
                    } finally {
                        IOUtils.closeQuietly(queue);
                        IOUtils.closeQuietly(client);
                    }
                    return null;
                }
            });
        }

        for (int i = 0; i < CLIENT_QTY; ++i) {
            completionService.take().get();
        }

        isDone.set(true);
        synchronized (lock) {
            lock.notifyAll();
        }

        for (int count : counts) {
            Assert.assertTrue(counts.toString(), count <= (MAX_ITEMS * SLOP_FACTOR));
        }
    } finally {
        executor.shutdownNow();
        IOUtils.closeQuietly(client);
    }
}

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From source file:com.microsoft.azure.management.sql.DatabaseBackupOperationsImpl.java

/**
* Returns a list of Azure SQL Database restore points.
*
* @param resourceGroupName Required. The name of the Resource Group to
* which the server belongs.//from  w  ww. java  2s. co m
* @param serverName Required. The name of the Azure SQL Database Server on
* which the database is hosted.
* @param databaseName Required. The name of the Azure SQL Database from
* which to retrieve available restore points.
* @return Represents the response to a List Azure Sql Database restore
* points request.
*/
@Override
public Future<RestorePointListResponse> listRestorePointsAsync(final String resourceGroupName,
        final String serverName, final String databaseName) {
    return this.getClient().getExecutorService().submit(new Callable<RestorePointListResponse>() {
        @Override
        public RestorePointListResponse call() throws Exception {
            return listRestorePoints(resourceGroupName, serverName, databaseName);
        }
    });
}

---

From source file:com.skymobi.monitor.action.LogsAction.java

@RequestMapping(value = "/projects/{projectName}/logs/more", method = RequestMethod.GET)
public void console(final HttpServletResponse response, ModelMap map, @PathVariable String projectName,
        LogQuery logQuery) throws IOException, ParseException {
    Project project = projectService.findProject(projectName);
    map.put("project", project);
    final MongoConverter converter = project.fetchMongoTemplate().getConverter();
    final DBCursor cursor = logsService.findLogs(projectName, logQuery);
    final StringBuffer buf = new StringBuffer();
    @SuppressWarnings("unchecked")
    FutureTask<String> task = new FutureTask(new Callable<String>() {
        @Override/* w  w w  .ja v a2 s. c o  m*/
        public String call() throws Exception {
            long startTime = System.currentTimeMillis();
            //???20
            logger.debug("result:");
            while (cursor.hasNext()) {
                Log log = converter.read(Log.class, cursor.next());

                buf.insert(0, log.toString() + "\n");
                long current = System.currentTimeMillis();
                if ((current - startTime) / 1000 >= mongWaitSeconds)
                    break;
            }
            return buf.toString();
        }
    });
    executor.execute(task);
    try {
        task.get(mongWaitSeconds + 5, TimeUnit.SECONDS);
        cursor.close();
    } catch (Exception e) {
        logger.error("time out ", e);
        task.cancel(true);
    }

    response.setContentType("text/html;charset=UTF-8");
    response.getWriter().write(buf.toString());
    response.getWriter().flush();

}

---

From source file:com.appleframework.monitor.action.LogsAction.java

@RequestMapping(value = "/projects/{projectName}/logs/more", method = RequestMethod.GET)
public void console(final HttpServletResponse response, ModelMap map, @PathVariable String projectName,
        LogQuery logQuery) throws IOException, ParseException {
    Project project = projectService.findProject(projectName);
    map.put("project", project);
    final MongoConverter converter = project.fetchMongoTemplate().getConverter();
    final DBCursor cursor = logsService.findLogs(projectName, logQuery);
    final StringBuffer buf = new StringBuffer();

    FutureTask<String> task = new FutureTask<String>(new Callable<String>() {
        @Override//from  w  w  w  .  j av  a  2 s. co m
        public String call() throws Exception {
            long startTime = System.currentTimeMillis();
            //???20
            logger.debug("result:");
            while (cursor.hasNext()) {
                Log log = converter.read(Log.class, cursor.next());

                buf.insert(0, log.toString() + "\n");
                long current = System.currentTimeMillis();
                if ((current - startTime) / 1000 >= mongWaitSeconds)
                    break;
            }
            return buf.toString();
        }
    });
    executor.execute(task);
    try {
        task.get(mongWaitSeconds + 5, TimeUnit.SECONDS);
        cursor.close();
    } catch (Exception e) {
        logger.error("time out ", e);
        task.cancel(true);
    }

    response.setContentType("text/html;charset=UTF-8");
    response.getWriter().write(buf.toString());
    response.getWriter().flush();
}

---

From source file:com.github.rosjava.rosjava_extras.hokuyo.scip20.Device.java

/**
 * It is not necessary to provide buffered streams. Buffering is handled
 * internally.//from w  w w.  j  av a 2s .c o m
 *
 * @param inputStream
 *          the {@link InputStream} for the ACM serial device
 * @param outputStream
 *          the {@link OutputStream} for the ACM serial device
 * @param epochTimeProvider
 */
public Device(InputStream inputStream, OutputStream outputStream, TimeProvider epochTimeProvider) {
    bufferedInputStream = new BufferedInputStream(inputStream, STREAM_BUFFER_SIZE);
    reader = new BufferedReader(new InputStreamReader(bufferedInputStream, Charset.forName("US-ASCII")));
    writer = new BufferedWriter(new OutputStreamWriter(
            new BufferedOutputStream(outputStream, STREAM_BUFFER_SIZE), Charset.forName("US-ASCII")));
    remoteUptimeClock = RemoteUptimeClock.newDefault(epochTimeProvider, new Callable<Double>() {
        @Override
        public Double call() throws Exception {
            return (double) queryUptime();
        }
    }, DRIFT_SENSITIVITY, ERROR_REDUCTION_COEFFICIENT_SENSITIVITY, LATENCY_FILTER_SAMPLE_SIZE,
            LATENCY_FILTER_THRESHOLD);
    init();
    configuration = queryConfiguration();
}

---

From source file:com.google.cloud.bigtable.hbase.TestCreateTable.java

/**
 * Requirement 1.8 - Table names must match [_a-zA-Z0-9][-_.a-zA-Z0-9]*
 *///from w  w w  .  j av a2 s .  c  om
@Test(timeout = 1000l * 60 * 4)
public void testTableNames() throws IOException {
    String shouldTest = System.getProperty("bigtable.test.create.table", "true");
    if (!"true".equals(shouldTest)) {
        return;
    }
    String[] goodNames = { "a", "1", "_", // Really?  Yuck.
            "_x", "a-._5x", "_a-._5x",
            // TODO(sduskis): Join the last 2 strings once the Bigtable backend supports table names
            // longer than 50 characters.
            "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghi", "jklmnopqrstuvwxyz1234567890_-." };
    String[] badNames = { "-x", ".x", "a!", "a@", "a#", "a$", "a%", "a^", "a&", "a*", "a(", "a+", "a=", "a~",
            "a`", "a{", "a[", "a|", "a\\", "a/", "a<", "a,", "a?",
            "a" + RandomStringUtils.random(10, false, false) };

    final Admin admin = getConnection().getAdmin();

    for (String badName : badNames) {
        boolean failed = false;
        try {
            admin.createTable(new HTableDescriptor(TableName.valueOf(badName))
                    .addFamily(new HColumnDescriptor(COLUMN_FAMILY)));
        } catch (IllegalArgumentException e) {
            failed = true;
        }
        Assert.assertTrue("Should fail as table name: '" + badName + "'", failed);
    }

    final TableName[] tableNames = admin.listTableNames();

    List<ListenableFuture<Void>> futures = new ArrayList<>();
    ListeningExecutorService es = MoreExecutors.listeningDecorator(Executors.newCachedThreadPool());
    for (final String goodName : goodNames) {
        futures.add(es.submit(new Callable<Void>() {
            @Override
            public Void call() throws IOException {
                createTable(admin, goodName, tableNames);
                return null;
            }
        }));
    }
    try {
        try {
            Futures.allAsList(futures).get(3, TimeUnit.MINUTES);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    } finally {
        es.shutdownNow();
    }
}

---

From source file:comsat.sample.actuator.SampleController.java

private Callable<Map<String, Object>> ollehCallable(final Message message,
        final DeferredResult<Map<String, Object>> optDeferred) throws SuspendExecution {
    return new Callable<Map<String, Object>>() {
        @Override//from   w w  w. ja va  2  s . c  om
        @Suspendable
        public Map<String, Object> call() throws Exception {
            try {
                Fiber.sleep(10);
                Map<String, Object> model = new LinkedHashMap<>();
                model.put("message", message.getValue());
                model.put("title", "Hello Home");
                model.put("date", new Date());
                if (optDeferred != null)
                    optDeferred.setResult(model);
                return model;
            } catch (Throwable t) {
                if (optDeferred != null)
                    optDeferred.setErrorResult(t);
                throw t;
            }
        }
    };
}

---

From source file:com.netflix.curator.framework.recipes.barriers.TestDistributedBarrier.java

@Test
public void testMultiClient() throws Exception {
    CuratorFramework client1 = null;//from   www.  ja v  a  2s  .  co  m
    CuratorFramework client2 = null;
    try {
        {
            CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
                    new RetryOneTime(1));
            try {
                client.start();
                DistributedBarrier barrier = new DistributedBarrier(client, "/barrier");
                barrier.setBarrier();
            } finally {
                IOUtils.closeQuietly(client);
            }
        }

        client1 = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));
        client2 = CuratorFrameworkFactory.newClient(server.getConnectString(), new RetryOneTime(1));

        List<Future<Object>> futures = Lists.newArrayList();
        ExecutorService service = Executors.newCachedThreadPool();
        for (final CuratorFramework c : new CuratorFramework[] { client1, client2 }) {
            Future<Object> future = service.submit(new Callable<Object>() {
                @Override
                public Object call() throws Exception {
                    c.start();
                    DistributedBarrier barrier = new DistributedBarrier(c, "/barrier");
                    barrier.waitOnBarrier(10, TimeUnit.MILLISECONDS);
                    return null;
                }
            });
            futures.add(future);
        }

        Thread.sleep(1000);
        {
            CuratorFramework client = CuratorFrameworkFactory.newClient(server.getConnectString(),
                    new RetryOneTime(1));
            try {
                client.start();
                DistributedBarrier barrier = new DistributedBarrier(client, "/barrier");
                barrier.removeBarrier();
            } finally {
                IOUtils.closeQuietly(client);
            }
        }

        for (Future<Object> f : futures) {
            f.get();
        }
    } finally {
        IOUtils.closeQuietly(client1);
        IOUtils.closeQuietly(client2);
    }
}

---

From source file:com.microsoft.azure.management.resources.ProviderOperationsMetadataOperationsImpl.java

/**
* Gets provider operations metadata/* ww  w  . ja  va2  s .com*/
*
* @param resourceProviderNamespace Required. Namespace of the resource
* provider.
* @return Provider operations metadata
*/
@Override
public Future<ProviderOperationsMetadataGetResult> getAsync(final String resourceProviderNamespace) {
    return this.getClient().getExecutorService().submit(new Callable<ProviderOperationsMetadataGetResult>() {
        @Override
        public ProviderOperationsMetadataGetResult call() throws Exception {
            return get(resourceProviderNamespace);
        }
    });
}

---

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