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:org.eclipse.virgo.ide.runtime.internal.core.command.AbstractJmxServerCommand.java

protected final Object execute(final JmxServerCommandTemplate template) throws TimeoutException {

    Callable<Object> deployOperation = new Callable<Object>() {

        public Object call() throws Exception {
            JMXConnector connector = null;
            try {
                connector = getJmxConnector();
                return template.invokeOperation(connector.getMBeanServerConnection());
            } finally {
                if (connector != null) {
                    try {
                        connector.close();
                    } catch (IOException e) {
                        SpringCore.log(e);
                    }/* w ww.  ja  v  a2 s. com*/
                }
            }
        }
    };

    FutureTask<Object> task = new FutureTask<Object>(deployOperation);
    ServerCorePlugin.EXECUTOR.submit(task);

    try {
        return task.get(30, TimeUnit.SECONDS);
    } catch (InterruptedException e) {
        // swallow exception here
    } catch (ExecutionException e) {
        // swallow exception here
    }

    return null;
}

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

@Test
public void testDeleteMultimedia() {
    this.execute(new Callable<Object>() {
        @Override/*from  ww  w .ja  v a2  s. c  o m*/
        public Object call() {
            final BlackboardMultimediaResponse response = new BlackboardMultimediaResponse();
            response.setCreatorId("test@example.com");
            response.setDescription("super sweet media");
            response.setMultimediaId(183838);
            response.setSize(1024);

            final Multimedia mm = dao.createMultimedia(response, "aliens_exist.pdf");

            dao.deleteMultimedia(mm);

            Multimedia shouldBeNull = dao.getMultimediaByBlackboardId(mm.getBbMultimediaId());
            assertNull(shouldBeNull);
            return null;
        }
    });
}

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From source file:org.fcrepo.indexer.solr.SolrIndexer.java

@Override
public Callable<UpdateResponse> updateSynch(final String id, final NamedFields fields) {
    LOGGER.debug("Received request for update to: {}", id);
    return new Callable<UpdateResponse>() {

        @Override/*from   w  ww.  j a va 2 s.  c o  m*/
        public UpdateResponse call() {
            try {
                LOGGER.debug("Executing request to Solr index for identifier: {} with fields: {}", id, fields);
                // add the identifier of the resource as a unique index-key
                fields.put("id", asList(id));
                // pack the fields into a Solr input doc
                final SolrInputDocument inputDoc = fromMap(fields);
                LOGGER.debug("Created SolrInputDocument: {}", inputDoc);

                final UpdateResponse resp = server.add(inputDoc);
                if (resp.getStatus() == 0) {
                    LOGGER.debug("Update request was successful for: {}", id);
                } else {
                    LOGGER.error("Update request returned error code: {} for identifier: {}", resp.getStatus(),
                            id);
                }
                LOGGER.debug("Received result from Solr request.");
                return resp;
            } catch (final SolrServerException | IOException e) {
                LOGGER.error("Update exception: {}!", e);
                throw propagate(e);
            }
        }
    };
}

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From source file:io.fabric8.forge.camel.commands.project.helper.CamelCommandsHelper.java

public static Callable<Iterable<ComponentDto>> createAllComponentDtoValues(final Project project,
        final CamelCatalog camelCatalog, final UISelectOne<String> componentCategoryFilter,
        final boolean excludeComponentsOnClasspath) {
    // use callable so we can live update the filter
    return new Callable<Iterable<ComponentDto>>() {
        @Override//from   ww w.java  2 s .co m
        public Iterable<ComponentDto> call() throws Exception {
            String label = componentCategoryFilter.getValue();
            return new CamelComponentsCompleter(project, camelCatalog, null, excludeComponentsOnClasspath, true,
                    false, false).getValueChoices(label);
        }
    };
}

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From source file:de.btobastian.javacord.entities.impl.ImplInviteBuilder.java

@Override
public Future<Invite> create(FutureCallback<Invite> callback) {
    ListenableFuture<Invite> future = api.getThreadPool().getListeningExecutorService()
            .submit(new Callable<Invite>() {
                @Override//from   w  w  w.java2 s. c  o m
                public Invite call() throws Exception {
                    logger.debug(
                            "Trying to create invite for channel {} (max uses: {}, temporary: {}, max age: {}",
                            textChannel == null ? voiceChannel : textChannel, maxUses, temporary, maxAge);
                    JSONObject jsonParam = new JSONObject();
                    if (maxUses > 0) {
                        jsonParam.put("max_uses", maxUses);
                    }
                    if (temporary > -1) {
                        jsonParam.put("temporary", temporary == 1);
                    }
                    if (maxAge > 0) {
                        jsonParam.put("max_age", maxAge);
                    }
                    String channelId = textChannel == null ? voiceChannel.getId() : textChannel.getId();
                    HttpResponse<JsonNode> response = Unirest
                            .post("https://discordapp.com/api/channels/" + channelId + "/invites")
                            .header("authorization", api.getToken()).header("Content-Type", "application/json")
                            .body(jsonParam.toString()).asJson();
                    api.checkResponse(response);
                    api.checkRateLimit(response, RateLimitType.UNKNOWN, null, null);
                    JSONObject data = response.getBody().getObject();
                    logger.debug("Created invite for channel {} (max uses: {}, temporary: {}, max age: {}",
                            textChannel == null ? voiceChannel : textChannel, maxUses, temporary,
                            data.has("max_age") ? data.getInt("max_age") : -1);
                    return new ImplInvite(api, data);
                }
            });
    if (callback != null) {
        Futures.addCallback(future, callback);
    }
    return future;
}

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From source file:cherry.chart.app.LineChartBatch.java

@Override
public ExitStatus execute(String... args) {

    int nThread = (args.length < 1 ? defaultNumThread : parseInt(args[0]));
    int count = (args.length < 2 ? defaultCount : parseInt(args[1]));

    ExecutorService executorService = Executors.newFixedThreadPool(nThread);
    List<Future<Boolean>> tasks = new LinkedList<>();

    for (int i = 0; i < count; i++) {

        final String numStr = String.valueOf(i);
        tasks.add(executorService.submit(new Callable<Boolean>() {
            @Override//from w  w w  .ja v a2 s. com
            public Boolean call() {

                File f = new File(toDir, format(file, numStr));
                String t = format(title, numStr);

                CategoryDataset dataset = createDataset();
                JFreeChart chart = ChartFactory.createLineChart(t, xLabel, yLabel, dataset);

                try (OutputStream out = new FileOutputStream(f)) {
                    ChartUtilities.writeChartAsPNG(out, chart, width, height);
                    return true;
                } catch (IOException ex) {
                    log.error("failed to create file", ex);
                    return false;
                }
            }
        }));
    }

    boolean success = true;
    for (Future<Boolean> future : tasks) {
        try {
            success &= future.get();
        } catch (ExecutionException | InterruptedException ex) {
            log.error("failed to get result", ex);
            success = false;
        }
    }
    return (success ? ExitStatus.NORMAL : ExitStatus.ERROR);
}

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From source file:co.cask.cdap.internal.app.services.ProgramLifecycleServiceTest.java

@Test
public void testInvalidFlowRunRecord() throws Exception {
    // Create App with Flow and the deploy
    HttpResponse response = deploy(WordCountApp.class, Constants.Gateway.API_VERSION_3_TOKEN, TEST_NAMESPACE1);
    Assert.assertEquals(200, response.getStatusLine().getStatusCode());

    final Id.Program wordcountFlow1 = Id.Program.from(TEST_NAMESPACE1, "WordCountApp", ProgramType.FLOW,
            "WordCountFlow");

    // flow is stopped initially
    Assert.assertEquals("STOPPED", getProgramStatus(wordcountFlow1));

    // start a flow and check the status
    startProgram(wordcountFlow1);//from  w  w w  .  jav  a2 s  .  c  om
    waitState(wordcountFlow1, ProgramRunStatus.RUNNING.toString());

    // Wait until we have a run record
    Tasks.waitFor(1, new Callable<Integer>() {
        @Override
        public Integer call() throws Exception {
            return getProgramRuns(wordcountFlow1, ProgramRunStatus.RUNNING.toString()).size();
        }
    }, 5, TimeUnit.SECONDS);

    // Get the RunRecord
    List<RunRecord> runRecords = getProgramRuns(wordcountFlow1, ProgramRunStatus.RUNNING.toString());
    Assert.assertEquals(1, runRecords.size());
    RunRecord rr = runRecords.get(0);

    // Check the RunRecords status
    Assert.assertEquals(ProgramRunStatus.RUNNING, rr.getStatus());

    // Lets set the runtime info to off
    RuntimeInfo runtimeInfo = runtimeService.lookup(wordcountFlow1, RunIds.fromString(rr.getPid()));
    ProgramController programController = runtimeInfo.getController();
    programController.stop();

    Thread.sleep(2000);

    // Verify that the status of that run is KILLED
    RunRecordMeta runRecordMeta = store.getRun(wordcountFlow1, rr.getPid());
    Assert.assertEquals(ProgramRunStatus.KILLED, runRecordMeta.getStatus());

    // Use the store manipulate state to be RUNNING
    long now = System.currentTimeMillis();
    long nowSecs = TimeUnit.MILLISECONDS.toSeconds(now);
    store.setStart(wordcountFlow1, rr.getPid(), nowSecs);

    // Now check again via Store to assume data store is wrong.
    runRecordMeta = store.getRun(wordcountFlow1, rr.getPid());
    Assert.assertEquals(ProgramRunStatus.RUNNING, runRecordMeta.getStatus());

    // Verify there is NO FAILED run record for the application
    runRecords = getProgramRuns(wordcountFlow1, ProgramRunStatus.FAILED.toString());
    Assert.assertEquals(0, runRecords.size());

    // Lets fix it
    Set<String> processedInvalidRunRecordIds = Sets.newHashSet();
    programLifecycleService.validateAndCorrectRunningRunRecords(ProgramType.FLOW, processedInvalidRunRecordIds);

    // Verify there is one FAILED run record for the application
    runRecords = getProgramRuns(wordcountFlow1, ProgramRunStatus.FAILED.toString());
    Assert.assertEquals(1, runRecords.size());
    rr = runRecords.get(0);
    Assert.assertEquals(ProgramRunStatus.FAILED, rr.getStatus());
}

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From source file:com.norman0406.slimgress.API.Interface.Interface.java

public AuthSuccess authenticate(final String token) {
    FutureTask<AuthSuccess> future = new FutureTask<AuthSuccess>(new Callable<AuthSuccess>() {
        @Override//from   ww w  .  j  a  v  a 2s . c  om
        public AuthSuccess call() throws Exception {
            // see http://blog.notdot.net/2010/05/Authenticating-against-App-Engine-from-an-Android-app
            // also use ?continue= (?)

            String login = mApiBaseURL + mApiLogin + token;
            HttpGet get = new HttpGet(login);

            try {
                HttpResponse response = null;
                synchronized (Interface.this) {
                    mClient.getParams().setBooleanParameter(ClientPNames.HANDLE_REDIRECTS, false);
                    Log.i("Interface", "executing authentication");
                    response = mClient.execute(get);
                }
                assert (response != null);
                @SuppressWarnings("unused")
                String content = EntityUtils.toString(response.getEntity());
                response.getEntity().consumeContent();

                if (response.getStatusLine().getStatusCode() == 401) {
                    // the token has expired
                    Log.i("Interface", "401: authentication token has expired");
                    return AuthSuccess.TokenExpired;
                } else if (response.getStatusLine().getStatusCode() != 302) {
                    // Response should be a redirect
                    Log.i("Interface", "unknown error: " + response.getStatusLine().getReasonPhrase());
                    return AuthSuccess.UnknownError;
                } else {
                    // get cookie
                    synchronized (Interface.this) {
                        for (Cookie cookie : mClient.getCookieStore().getCookies()) {
                            if (cookie.getName().equals("SACSID")) { // secure cookie! (ACSID is non-secure http cookie)
                                mCookie = cookie.getValue();
                            }
                        }
                    }

                    if (mCookie == null) {
                        Log.i("Interface", "authentication token has expired");
                        return AuthSuccess.TokenExpired;
                    }

                    Log.i("Interface", "authentication successful");
                    return AuthSuccess.Successful;
                }
            } catch (ClientProtocolException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                synchronized (Interface.this) {
                    mClient.getParams().setBooleanParameter(ClientPNames.HANDLE_REDIRECTS, true);
                }
            }
            return AuthSuccess.Successful;
        }
    });

    // start thread
    new Thread(future).start();

    // obtain authentication return value
    AuthSuccess retVal = AuthSuccess.UnknownError;
    try {
        retVal = future.get();
    } catch (InterruptedException e) {
        e.printStackTrace();
    } catch (ExecutionException e) {
        e.printStackTrace();
    }

    return retVal;
}

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From source file:com.microsoft.azure.management.network.UsageOperationsImpl.java

/**
* Lists compute usages for a subscription.
*
* @param location Required. The location upon which resource usage is
* queried.//from   w ww  . ja  v a2  s . c o m
* @return The List Usages operation response.
*/
@Override
public Future<UsagesListResponse> listAsync(final String location) {
    return this.getClient().getExecutorService().submit(new Callable<UsagesListResponse>() {
        @Override
        public UsagesListResponse call() throws Exception {
            return list(location);
        }
    });
}

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From source file:com.aol.advertising.qiao.injector.RandomIntegerDataSource.java

protected void _registerStatsCollector() {
    if (statsCollector != null)
        statsCollector.register(new Callable<Void>() {
            @Override/*from  w ww  .j a v a  2 s  . c o  m*/
            public Void call() {
                if (numGenerated.get() > 0)
                    eventPublisher.publishEvent(new StatsEvent(this, this.getClass().getSimpleName(), funnelId,
                            StatsOp.INCRBY, "random_input", numGenerated.getAndSet(0)));

                return null;
            }

        });
}

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