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.

Prototype

Callable

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Usage

From source file:com.carmatech.maven.model.ParallelMerger.java

private List<Future<PropertiesConfiguration>> parallelToProperties(final List<File> sourceFiles) {
    final List<Future<PropertiesConfiguration>> futures = Lists
            .newArrayListWithExpectedSize(sourceFiles.size());
    for (final File sourceFile : sourceFiles) {
        futures.add(threadPool.submit(new Callable<PropertiesConfiguration>() {
            @Override//  ww  w  .  j  ava  2s  .c o m
            public PropertiesConfiguration call() throws Exception {
                return toProperties(sourceFile);
            }
        }));
    }
    return futures;
}

From source file:com.taobao.common.tfs.comm.TfsClientFactory.java

public TfsClient get(Long targetId, final int connectionTimeout, final PacketStreamer pstreamer)
        throws TfsException {
    final Long key = targetId;
    if (clients.containsKey(key)) {
        try {/*from   ww  w  .  j a  v  a2 s. c  o  m*/
            return clients.get(key).get();
        } catch (Exception e) {
            removeClient(key);
            throw new TfsException("get tfs connection error,targetAddress is " + targetId, e);
        }
    } else {
        FutureTask<TfsClient> task = new FutureTask<TfsClient>(new Callable<TfsClient>() {
            public TfsClient call() throws Exception {
                return createClient(key, connectionTimeout, pstreamer);
            }
        });
        FutureTask<TfsClient> existTask = clients.putIfAbsent(key, task);
        if (existTask == null) {
            existTask = task;
            task.run();
        }
        try {
            return existTask.get();
        } catch (Exception e) {
            removeClient(key);
            throw new TfsException("get tfs connection error,targetAddress is " + targetId, e);
        }
    }
}

From source file:com.netflix.dyno.connectionpool.impl.lb.CircularListTest.java

@Test
public void testSingleThreadWithElementAdd() throws Exception {

    final AtomicBoolean stop = new AtomicBoolean(false);

    Future<Map<Integer, Integer>> future = threadPool.submit(new Callable<Map<Integer, Integer>>() {

        @Override//www  . j  av a 2 s  . c o  m
        public Map<Integer, Integer> call() throws Exception {

            TestWorker worker = new TestWorker();

            while (!stop.get()) {
                worker.process();
            }

            return worker.map;
        }
    });

    Thread.sleep(500);

    List<Integer> newList = new ArrayList<Integer>();
    newList.addAll(iList);
    for (int i = 10; i < 15; i++) {
        newList.add(i);
    }

    cList.swapWithList(newList);

    Thread.sleep(100);

    stop.set(true);

    Map<Integer, Integer> result = future.get();

    Map<Integer, Integer> subMap = CollectionUtils.filterKeys(result, new Predicate<Integer>() {
        @Override
        public boolean apply(Integer input) {
            return input != null && input < 10;
        }
    });

    List<Integer> list = new ArrayList<Integer>(subMap.values());
    checkValues(list);

    subMap = CollectionUtils.difference(result, subMap).entriesOnlyOnLeft();
    list = new ArrayList<Integer>(subMap.values());
    checkValues(list);
}

From source file:com.parse.FileObjectStore.java

@Override
public Task<Void> setAsync(final T object) {
    return Task.call(new Callable<Void>() {
        @Override/*from w  w w  .  ja  va2s .  c  om*/
        public Void call() throws Exception {
            saveToDisk(coder, object, file);
            //TODO (grantland): check to see if this failed? We currently don't for legacy reasons.
            return null;
        }
    }, ParseExecutors.io());
}

From source file:at.ac.univie.isc.asio.metadata.AtosMetadataRepository.java

/**
 * Find metadata on the datasets with given {@code localID}.
 *
 * @param localIdentifier identifier of dataset
 * @return metadata on target dataset if present
 *//*from   ww  w .  ja  v a 2 s  .c  o  m*/
public Observable<AtosDataset> findByLocalId(final String localIdentifier) {
    return checkedRequest(new Callable<List<AtosResourceMetadata>>() {
        @Override
        public List<AtosResourceMetadata> call() throws Exception {
            final AtosResourceMetadataList resources = endpoint.path("/metadata/facets/Dataset/localID")
                    .queryParam("value", localIdentifier).request(MediaType.APPLICATION_XML_TYPE)
                    .get(AtosResourceMetadataList.class);
            return resources.getResourceMetadata();
        }
    }).flatMap(new Func1<List<AtosResourceMetadata>, Observable<AtosResourceMetadata>>() {
        @Override
        public Observable<AtosResourceMetadata> call(final List<AtosResourceMetadata> resourceList) {
            return Observable.from(resourceList);
        }
    }).map(new Func1<AtosResourceMetadata, AtosDataset>() {
        @Override
        public AtosDataset call(final AtosResourceMetadata resource) {
            return resource.getDataset();
        }
    }).filter(new Func1<AtosDataset, Boolean>() {
        @Override
        public Boolean call(final AtosDataset atosDataset) {
            return atosDataset != null;
        }
    });
}

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

/**
 * Fetch all the companies in the system. It will return a light weight version of
 * {@link net.bhira.sample.model.Company} model without the address and contactInfo objects.
 * /*from w  w  w  .  j av a2s.  c  om*/
 * @param response
 *            the http response to which the results will be written.
 * @return an array of {@link net.bhira.sample.model.Company} instances as JSON.
 */
@RequestMapping(value = "/company", method = RequestMethod.GET)
@ResponseBody
public Callable<String> getAll(HttpServletResponse response) {
    return new Callable<String>() {
        public String call() throws Exception {
            String body = "";
            try {
                LOG.debug("servicing GET company/");
                List<Company> list = companyService.loadAll();
                int count = (list == null) ? 0 : list.size();
                LOG.debug("GET company/ count = {}", count);
                body = JsonUtil.createGson().toJson(list);
            } catch (Exception ex) {
                response.setStatus(HttpServletResponse.SC_FORBIDDEN);
                body = ex.getLocalizedMessage();
                LOG.warn("Error loading companies. {}", body);
                LOG.debug("Load error stacktrace: ", ex);
            }
            return body;
        }
    };
}

From source file:org.jasig.portlet.blackboardvcportlet.dao.impl.PresentationDaoImplTest.java

@Test
public void testDelete() {
    this.execute(new Callable<Object>() {
        @Override/*from w  w  w.j  a  v  a  2s .c  o  m*/
        public Object call() {
            final BlackboardPresentationResponse response = new BlackboardPresentationResponse();
            response.setCreatorId("test@example.com");
            response.setDescription("super sweet media");
            response.setPresentationId(183838);
            response.setSize(1024);

            final Presentation pres = dao.createPresentation(response, "aliens_exist.pdf");
            assertNotNull(pres);

            dao.deletePresentation(pres);

            Presentation shouldBeNull = dao.getPresentationByBlackboardId(pres.getBbPresentationId());
            assertNull(shouldBeNull);
            return null;
        }
    });
}

From source file:com.alibaba.dragoon.common.protocol.transport.socket.SocketConnector.java

public Future<DragoonSession> connect(final SocketAddress address, final MessageHandler messageHandler) {
    if (address == null) {
        throw new IllegalArgumentException("address is null");
    }//from ww w  . j  a v  a 2s  . c  o  m

    if (!(address instanceof InetSocketAddress)) {
        throw new IllegalArgumentException("address must be VmPipeAddress.");
    }

    final InetSocketAddress inetSocketAddress = (InetSocketAddress) address;

    FutureTask<DragoonSession> task = new FutureTask<DragoonSession>(new Callable<DragoonSession>() {

        public DragoonSession call() throws Exception {
            connectCount.incrementAndGet();
            if (LOG.isInfoEnabled()) {
                LOG.info("CONNECT TO " + inetSocketAddress);
            }

            remoteAddress = inetSocketAddress.toString();
            Socket socket = new Socket(inetSocketAddress.getAddress(), inetSocketAddress.getPort());

            connectEstablishedCount.incrementAndGet();

            if (LOG.isInfoEnabled()) {
                LOG.info("CONNECTED TO " + inetSocketAddress);
            }

            SocketSessionImpl impl = new SocketSessionImpl(socket, receivedBytes, receivedMessages, sentBytes,
                    sentMessages);

            final long sessionId = generateSessionId();

            DragoonSession session = new DragoonSession(sessionId, new DragoonSessionConfig(messageHandler),
                    impl);
            impl.init(session);

            return session;
        }

    });
    connectorExecutor.submit(task);

    return task;
}

From source file:com.taobao.tair.comm.TairClientFactory.java

public TairClient get(final String targetUrl, final int connectionTimeout, final PacketStreamer pstreamer)
        throws TairClientException {
    String key = targetUrl;/*  w w w  . j  ava 2s.  c o  m*/
    FutureTask<TairClient> existTask = null;
    existTask = clients.get(key);

    if (existTask == null) {
        FutureTask<TairClient> task = new FutureTask<TairClient>(new Callable<TairClient>() {
            public TairClient call() throws Exception {
                return createClient(targetUrl, connectionTimeout, pstreamer);
            }
        });
        existTask = clients.putIfAbsent(key, task);
        if (existTask == null) {
            existTask = task;
            task.run();
        }
    }

    try {
        return existTask.get();
    } catch (InterruptedException e) {
        throw new RuntimeException(e);
    } catch (CancellationException e) {
        // cancel exception may be lost connection fd, but we never called task.cancel();
        clients.remove(key);
        throw e;
    } catch (ExecutionException e) {
        // create socket failed, so need not close
        clients.remove(key);
        throw new TairClientException("create socket exception, target address is " + targetUrl, e);
    }
}

From source file:com.xclinical.mdr.server.DocumentServlet.java

@Override
protected void service(final HttpServletRequest req, final HttpServletResponse resp)
        throws ServletException, IOException {

    PMF.runInServlet(new Callable<Void>() {
        @Override//from  w  w  w . ja va  2 s.c om
        public Void call() throws Exception {
            DocumentServlet.super.service(req, resp);
            return null;
        }
    });
}