Example usage for java.util.concurrent Callable Callable

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

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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:org.apache.brooklyn.rest.BrooklynRestApiLauncherTest.java

private static void checkRestCatalogApplications(Server server) throws Exception {
    final String rootUrl = "http://localhost:" + ((NetworkConnector) server.getConnectors()[0]).getLocalPort();
    int code = Asserts.succeedsEventually(new Callable<Integer>() {
        @Override//from w w w  .j a  va  2  s.  c  om
        public Integer call() throws Exception {
            int code = HttpTool.getHttpStatusCode(rootUrl + "/v1/catalog/applications");
            if (code == HttpStatus.SC_FORBIDDEN) {
                throw new RuntimeException("Retry request");
            } else {
                return code;
            }
        }
    });
    HttpAsserts.assertHealthyStatusCode(code);
    HttpAsserts.assertContentContainsText(rootUrl + "/v1/catalog/applications",
            SampleNoOpApplication.class.getSimpleName());
}

From source file:com.github.jrialland.ajpclient.servlet.TestWrongHost.java

/**
 * tries to make a request to an unknown host, verifies that the request
 * fails (the library does not hangs) and that we have a 502 error
 * //  www. j a va  2 s .c o  m
 * @throws Exception
 */
@Test
public void testWrongTargetHost() throws Exception {
    final MockHttpServletRequest request = new MockHttpServletRequest();
    request.setMethod("GET");
    request.setRequestURI("/dizzy.mp4");
    final MockHttpServletResponse response = new MockHttpServletResponse();

    final Future<Integer> statusFuture = Executors.newSingleThreadExecutor().submit(new Callable<Integer>() {
        @Override
        public Integer call() throws Exception {
            AjpServletProxy.forHost("unknownhost.inexistentdomain.com", 8415).forward(request, response);
            return response.getStatus();
        }
    });

    final long start = System.currentTimeMillis();

    // should finish in less that seconds
    final int status = statusFuture.get(10, TimeUnit.SECONDS);

    Assert.assertTrue(System.currentTimeMillis() - start < 8000);

    Assert.assertEquals(HttpServletResponse.SC_BAD_GATEWAY, status);
}

From source file:org.fishwife.jrugged.httpclient.ServiceWrappedHttpClientDecorator.java

public HttpResponse execute(final HttpHost host, final HttpRequest req, final HttpContext ctx)
        throws IOException, ClientProtocolException {
    try {//from   w ww .  j a v  a2 s  . c om
        return wrapper.invoke(new Callable<HttpResponse>() {
            public HttpResponse call() throws Exception {
                return backend.execute(host, req, ctx);
            }
        });
    } catch (IOException ioe) {
        throw (ioe);
    } catch (RuntimeException re) {
        throw (re);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:org.t2framework.commons.util.LazyLoadingReference.java

 public T get() throws IllegalStateException {
   while (true) {
      WeakReference<Future<T>> ref = reference.get();
      boolean valid = true;
      if (ref == null) {
         FutureTask<T> f = new FutureTask<T>(new Callable<T>() {
            @Override/*  w  ww. ja  v a 2 s. c  o m*/
            public T call() throws Exception {
               return factory.create();
            }
         });
         ref = new WeakReference<Future<T>>(f);
         if (valid = reference.compareAndSet(null, ref)) {
            f.run();
         }
      }
      if (valid) {
         try {
            Future<T> f = ref.get();
            if (f != null) {
               return f.get();
            } else {
               reference.compareAndSet(ref, null);
            }
         } catch (CancellationException e) {
            reference.compareAndSet(ref, null);
         } catch (ExecutionException e) {
            throw new IllegalStateException(e.getCause());
         } catch (Exception e) {
            throw new IllegalStateException(e);
         }
      }
   }
}

From source file:com.spotify.helios.system.CliHostListTest.java

@Before
public void initialize() throws Exception {
    startDefaultMaster();/*w  ww. j  a  va 2s  . co  m*/

    // Wait for master to come up
    Polling.await(LONG_WAIT_SECONDS, SECONDS, new Callable<String>() {
        @Override
        public String call() throws Exception {
            final String output = cli("masters");
            return output.contains(masterName()) ? output : null;
        }
    });

    hostname1 = testHost() + "a";
    hostname2 = testHost() + "b";

    startDefaultAgent(hostname1);
    final AgentMain agent2 = startDefaultAgent(hostname2);

    // Wait for both agents to come up
    awaitHostRegistered(hostname1, LONG_WAIT_SECONDS, SECONDS);
    awaitHostStatus(hostname2, UP, LONG_WAIT_SECONDS, SECONDS);

    // Stop agent2
    agent2.stopAsync().awaitTerminated();
}

From source file:com.barchart.netty.rest.client.TestRequestHandler.java

public void sync() throws Exception {
    CallableTest.waitFor(new Callable<Boolean>() {
        @Override/*w w w  . j a  va2  s  . c  o m*/
        public Boolean call() throws Exception {
            return method != null;
        }
    }, 5000);
}

From source file:com.javacreed.examples.cache.part2.FictitiousLongRunningTask.java

public long computeLongTask(final String key) throws Exception {
    return cache.getValue(key, new Callable<Long>() {
        @Override/*from   ww w  .j a  v  a 2 s  . c  o  m*/
        public Long call() throws Exception {
            FictitiousLongRunningTask.LOGGER.debug("Computing Fictitious Long Running Task: {}", key);
            Thread.sleep(10000); // 10 seconds
            return System.currentTimeMillis();
        }
    });
}

From source file:net.eusashead.hateoas.conditional.interceptor.AsyncTestController.java

@RequestMapping(method = RequestMethod.HEAD)
public Callable<ResponseEntity<Void>> head() {
    return new Callable<ResponseEntity<Void>>() {

        @Override//  www.  ja v  a2s .co  m
        public ResponseEntity<Void> call() throws Exception {
            HttpHeaders headers = new HttpHeaders();
            headers.setETag("\"123456\"");
            return new ResponseEntity<Void>(headers, HttpStatus.OK);
        }
    };

}

From source file:com.microsoft.windowsazure.management.website.WebSiteManagementIntegrationTestBase.java

protected static void createService() throws Exception {
    // reinitialize configuration from known state
    Configuration config = createConfiguration();
    config.setProperty(ApacheConfigurationProperties.PROPERTY_RETRY_HANDLER,
            new DefaultHttpRequestRetryHandler());

    // add LoggingFilter to any pipeline that is created
    Registry builder = (Registry) config.getBuilder();
    builder.alter(WebSiteManagementClient.class, Client.class, new Alteration<Client>() {
        @Override/*w w  w. j a v a 2 s  . c o m*/
        public Client alter(String profile, Client client, Builder builder, Map<String, Object> properties) {
            client.addFilter(new LoggingFilter());
            return client;
        }
    });

    webSiteManagementClient = WebSiteManagementService.create(config);
    addClient((ServiceClient<?>) webSiteManagementClient, new Callable<Void>() {
        @Override
        public Void call() throws Exception {
            createService();
            return null;
        }
    });
}

From source file:kr.steelheart.site.blog.web.FeedController.java

@RequestMapping(value = {
        "/feed" }, method = RequestMethod.GET, produces = MediaType.APPLICATION_ATOM_XML_VALUE)
@ResponseBody//from  w  w w  .  j a v  a 2  s  .  c  o  m
public Callable<Void> feed(final HttpServletRequest request) {
    return new Callable<Void>() {

        @Override
        public Void call() {
            PageRequest pageable = new PageRequest(0, 20, Direction.DESC, "created");
            Page<Post> posts = postRepository.findAll(QPost.post.publish.isTrue(), pageable);

            String host = "http://" + request.getAttribute("host") + "/";

            Feed feed = new Feed();

            List<SyndPerson> authors = new ArrayList<>();
            Person author = new Person();
            author.setName("Sungha Jun");
            author.setUri(host);
            authors.add(author);

            feed.setId(host);
            feed.setTitle("steelheart*Rocks!");
            feed.setAuthors(authors);
            feed.setCopyright("http://creativecommons.org/licenses/by/3.0/deed.en");

            for (Post post : posts) {
                Date updated = null;
                if (post.getUpdated() == null) {
                    updated = post.getCreated();
                } else {
                    updated = post.getUpdated();
                }

                if (feed.getUpdated() == null || updated.compareTo(feed.getUpdated()) > 0) {
                    feed.setUpdated(updated);
                }
            }

            if (feed.getUpdated() == null) {
                feed.setUpdated(new Date());
            }

            Link link = new Link();
            link.setType(MediaType.TEXT_HTML_VALUE);
            link.setHref(host + "feed");

            List<Link> links = new ArrayList<>();
            links.add(link);

            feed.setAlternateLinks(links);
            feed.setLogo(host + "img/logo@2x.png");

            return null;
        }
    };
}