Example usage for java.util.concurrent FutureTask FutureTask

Introduction

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

Prototype

public FutureTask(Runnable runnable, V result) 

Source Link

Document

Creates a FutureTask that will, upon running, execute the given Runnable , and arrange that get will return the given result on successful completion.

Usage

From source file:org.gytheio.health.CompositeComponentUnavailableAction.java

protected void execute(final ComponentUnavailableAction action, final Throwable e) throws Throwable {
    FutureTask<Void> task = null;
    try {//from w w  w . j av a 2 s  . c om
        task = new FutureTask<Void>(new Runnable() {
            @Override
            public void run() {
                action.execute(e);
            }
        }, null);

        getExecutorService().execute(task);
        task.get(actionTimeoutMs, TimeUnit.MILLISECONDS);
    } catch (TimeoutException e1) {
        task.cancel(true);
        throw e;
    } catch (InterruptedException e1) {
        // We were asked to stop
        task.cancel(true);
    } catch (ExecutionException e1) {
        // Unwrap our cause and throw that
        Throwable cause = e.getCause();
        throw cause;
    }
}

---

From source file:io.pivotal.spring.xd.jdbcgpfdist.GPFDistMessageHandler.java

public void start() {

    try {//w w w. j  a v  a2 s .  c o  m

        taskFuture = new TaskFuture();
        //init counter
        meterCount = 0;

        context = new RuntimeContext();

        Environment.initializeIfEmpty().assignErrorJournal();
        processor = RingBufferProcessor.create(false);

        if (rateInterval > 0) {
            meter = new Meter();
        }

        log.info("Creating gpfdist protocol listener on port=" + port);
        gpfdistServer = new GPFDistServer(processor, port, flushCount, flushTime, batchTimeout, batchCount);
        gpfdistServer.start();
        log.info("gpfdist protocol listener running on port=" + gpfdistServer.getLocalPort());
        context.addLocation(NetworkUtils.getGPFDistUri(gpfdistServer.getLocalPort()));

        log.info("Scheduling gpfdist task with batchPeriod=" + batchPeriod);
        sqlTaskScheduler.schedule((new FutureTask<Void>(() -> {
            boolean taskValue = true;
            try {
                while (!taskFuture.interrupted) {
                    try {
                        greenplumLoad.load(context);
                    } catch (Exception e) {
                        log.error("Error in load", e);
                    }
                    Thread.sleep(batchPeriod * 1000);
                }
            } catch (Exception e) {
                taskValue = false;
            }
            taskFuture.set(taskValue);
        }, null)), new Date());

    } catch (Exception e) {
        throw new RuntimeException("Error starting protocol listener", e);
    }

}

---

From source file:org.jactr.core.module.declarative.four.learning.DefaultDeclarativeLearningModule4.java

public DefaultDeclarativeLearningModule4() {
    super("DeclarativeLearningV4");

    _modelListener = new ModelListenerAdaptor() {

        @Override//from ww  w  .ja v  a  2s.c  om
        public void moduleInstalled(ModelEvent event) {
            tryToAttach();
        }

        @Override
        public void cycleStarted(ModelEvent event) {
            /*
             * we don't need this code to do anything. it will be executed after all
             * the other tasks have been, i.e., all learning is done. if
             * getExecutor() returns the inline, nothing changes
             */
            FutureTask<Object> blockingTask = new FutureTask<Object>(new Runnable() {

                public void run() {
                    // noop once completed, object will be available
                }
            }, new Object());

            getExecutor().execute(blockingTask);

            try {
                blockingTask.get();
            } catch (Exception e) {
                LOGGER.error("Could not block while waiting for learning to finish ", e);
            }
        }
    };
}

---

From source file:com.googlecode.jsfFlex.shared.tasks.TaskRunnerImpl.java

public void queueFutureTask(final String taskName, final AbstractTask toAdd) {
    final FutureTask<Void> task = new FutureTask<Void>(new Runnable() {
        public void run() {
            toAdd.performTask();//from w  ww . j  av  a2 s. co m
            _queuedTasks.remove(taskName);
            _log.info("Queued taskName has been completed : " + taskName);
        }
    }, null);

    Future<Void> previousTask = _queuedTasks.putIfAbsent(taskName, task);
    if (previousTask != null) {
        throw new RuntimeException(DUPLICATE_QUEUE_TASK_ID_PROVIDED + taskName);
    }
    _queuedService.submit(task);
}

---

From source file:org.luwrain.app.commander.PanelArea.java

boolean runHookOnFilesToProcess(String hookPrefix, boolean background) {
    NullCheck.notEmpty(hookPrefix, "hookPrefix");
    final Object arg;
    final String hookName;
    if (isLocalDir()) {
        final File[] files = getFilesToProcess();
        if (files.length == 0)
            return false;
        final String[] names = new String[files.length];
        for (int i = 0; i < files.length; i++)
            names[i] = files[i].getAbsolutePath();
        arg = ScriptUtils.createReadOnlyArray(names);
        hookName = hookPrefix + ".local";
    } else/*  w  w  w.j  a v a 2s  . co  m*/
        return false;
    if (!background)
        try {
            if (luwrain.xRunHooks(hookName + ".custom", new Object[] { arg },
                    Luwrain.HookStrategy.CHAIN_OF_RESPONSIBILITY))
                return true;
            return luwrain.xRunHooks(hookName, new Object[] { arg },
                    Luwrain.HookStrategy.CHAIN_OF_RESPONSIBILITY);
        } catch (RuntimeException e) {
            luwrain.crash(e);
            return true;
        }
    luwrain.executeBkg(new FutureTask(() -> {
        try {
            if (luwrain.xRunHooks(hookName + ".custom", new Object[] { arg },
                    Luwrain.HookStrategy.CHAIN_OF_RESPONSIBILITY))
                return;
            luwrain.xRunHooks(hookName, new Object[] { arg }, Luwrain.HookStrategy.CHAIN_OF_RESPONSIBILITY);
            return;
        } catch (RuntimeException e) {
            luwrain.crash(e);
        }
    }, null));
    return true;
}

---

From source file:org.springframework.xd.greenplum.gpfdist.GPFDistMessageHandler.java

@Override
protected void doStart() {
    try {/* w  ww .j a  v  a 2 s . com*/
        log.info("Creating gpfdist protocol listener on port=" + port);
        gpfdistServer = new GPFDistServer(processor, port, flushCount, flushTime, batchTimeout, batchCount);
        gpfdistServer.start();
        log.info("gpfdist protocol listener running on port=" + gpfdistServer.getLocalPort());
    } catch (Exception e) {
        throw new RuntimeException("Error starting protocol listener", e);
    }

    if (greenplumLoad != null) {
        log.info("Scheduling gpload task with batchPeriod=" + batchPeriod);

        final RuntimeContext context = new RuntimeContext();
        context.addLocation(NetworkUtils.getGPFDistUri(gpfdistServer.getLocalPort()));

        sqlTaskScheduler.schedule((new FutureTask<Void>(new Runnable() {
            @Override
            public void run() {
                boolean taskValue = true;
                try {
                    while (!taskFuture.interrupted) {
                        try {
                            greenplumLoad.load(context);
                        } catch (Exception e) {
                            log.error("Error in load", e);
                        }
                        Thread.sleep(batchPeriod * 1000);
                    }
                } catch (Exception e) {
                    taskValue = false;
                }
                taskFuture.set(taskValue);
            }
        }, null)), new Date());

    } else {
        log.info("Skipping gpload tasks because greenplumLoad is not set");
    }
}

---

From source file:org.commonreality.sensors.xml.XMLSensor.java

@Override
public void stop() throws Exception {
    if (LOGGER.isDebugEnabled())
        LOGGER.debug("Stopping");

    _isStopping = true;//from  w ww  . j  a va 2 s.c o m
    synchronized (_pendingTimeFrames) {
        _pendingTimeFrames.clear();
    }

    // clear out the trash
    FutureTask<Boolean> waitForMe = new FutureTask<Boolean>(new Runnable() {

        public void run() {
        }
    }, Boolean.TRUE);
    _service.execute(waitForMe);

    /*
     * interrupt the executor.. so that if it is currently waiting, say for the
     * clock..
     */
    _noOp.interrupt();
    _processFrame.interrupt();

    /*
     * and wait for it to finish
     */
    waitForMe.get();
    super.stop();
}

---

From source file:org.springframework.cloud.stream.module.gpfdist.sink.GpfdistMessageHandler.java

@Override
protected void doStart() {
    try {/* ww  w . jav  a 2 s .  c o m*/
        log.info("Creating gpfdist protocol listener on port=" + port);
        gpfdistServer = new GpfdistServer(processor, port, flushCount, flushTime, batchTimeout, batchCount);
        gpfdistServer.start();
        log.info("gpfdist protocol listener running on port=" + gpfdistServer.getLocalPort());
    } catch (Exception e) {
        throw new RuntimeException("Error starting protocol listener", e);
    }

    if (greenplumLoad != null) {
        log.info("Scheduling gpload task with batchPeriod=" + batchPeriod);

        final RuntimeContext context = new RuntimeContext();
        context.addLocation(NetworkUtils.getGPFDistUri(gpfdistServer.getLocalPort()));

        sqlTaskScheduler.schedule((new FutureTask<Void>(new Runnable() {
            @Override
            public void run() {
                boolean taskValue = true;
                try {
                    while (!taskFuture.interrupted) {
                        try {
                            greenplumLoad.load(context);
                        } catch (Exception e) {
                            log.error("Error in load", e);
                        }
                        Thread.sleep(batchPeriod * 1000);
                    }
                } catch (Exception e) {
                    taskValue = false;
                }
                taskFuture.set(taskValue);
            }
        }, null)), new Date());

    } else {
        log.info("Skipping gpload tasks because greenplumLoad is not set");
    }
}

---

From source file:org.springframework.cloud.stream.app.gpfdist.sink.GpfdistMessageHandler.java

@Override
protected void doStart() {
    try {//from  w  w w . ja v  a2s  .  c o m
        log.info("Creating gpfdist protocol listener on port=" + port);
        gpfdistServer = new GpfdistServer(processor, port, flushCount, flushTime, batchTimeout, batchCount);
        gpfdistServer.start();
        log.info("gpfdist protocol listener running on port=" + gpfdistServer.getLocalPort());
    } catch (Exception e) {
        throw new RuntimeException("Error starting protocol listener", e);
    }

    if (greenplumLoad != null) {
        log.info("Scheduling gpload task with batchPeriod=" + batchPeriod);

        final RuntimeContext context = new RuntimeContext(NetworkUtils
                .getGPFDistUri(hostInfoDiscovery.getHostInfo().getAddress(), gpfdistServer.getLocalPort()));

        sqlTaskScheduler.schedule((new FutureTask<Void>(new Runnable() {
            @Override
            public void run() {
                boolean taskValue = true;
                try {
                    while (!taskFuture.interrupted) {
                        try {
                            greenplumLoad.load(context);
                        } catch (Exception e) {
                            log.error("Error in load", e);
                        }
                        Thread.sleep(batchPeriod * 1000);
                    }
                } catch (Exception e) {
                    taskValue = false;
                }
                taskFuture.set(taskValue);
            }
        }, null)), new Date());

    } else {
        log.info("Skipping gpload tasks because greenplumLoad is not set");
    }
}

---

From source file:test.com.azaptree.services.executor.ThreadPoolExecutorTest.java

@Test
public void testPurge() {
    pauseableExecutor.setCorePoolSize(1);
    pauseableExecutor.setMaximumPoolSize(1);
    pauseableExecutor.pause();/*ww w.  j a va  2s . c  o  m*/
    for (int i = 0; i < 100; i++) {
        final FutureTask<Boolean> futureTask = new FutureTask<>(new Task(), Boolean.TRUE);
        pauseableExecutor.execute(futureTask);
        futureTask.cancel(true);
    }
    Assert.assertEquals(pauseableExecutor.getQueue().size(), 99);
    pauseableExecutor.purge();
    Assert.assertEquals(pauseableExecutor.getQueue().size(), 0);
    pauseableExecutor.resume();
}

---

• «
• 1
• 2
• 3
• 4
• »