Examples of IExecutorService

com.hazelcast.core.IExecutorService
Distributed implementation of {@link ExecutorService}. IExecutorService provides additional methods like executing tasks on a specific member, on a member who is owner of a specific key, executing a tasks on multiple members and listening execution result using a callback. @see ExecutorService @see ExecutionCallback @see MultiExecutionCallback

Examples of com.hazelcast.core.IExecutorService

    }


    private void executeOnMembers(String[] args) {
        // executeOnMembers <echo-string>
        try {
            IExecutorService executorService = hazelcast.getExecutorService("default");
            Echo task = new Echo(args[1]);
            Map<Member, Future<String>> results = executorService.submitToAllMembers(task);


            for (Future f : results.values()) {
                println(f.get());
            }
        } catch (InterruptedException e) {

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Examples of com.hazelcast.core.IExecutorService

        int taskCount = Integer.parseInt(args[1]);
        int durationSec = Integer.parseInt(args[2]);


        long startMs = System.currentTimeMillis();


        IExecutorService executor = hazelcast.getExecutorService("e" + threadCount);
        List<Future> futures = new LinkedList<Future>();
        List<Member> members = new LinkedList<Member>(hazelcast.getCluster().getMembers());


        int totalThreadCount = hazelcast.getCluster().getMembers().size() * threadCount;


        int latchId = 0;
        for (int k = 0; k < taskCount; k++) {
            Member member = members.get(k % members.size());
            if (taskCount % totalThreadCount == 0) {
                latchId = taskCount / totalThreadCount;
                hazelcast.getCountDownLatch("latch" + latchId).trySetCount(totalThreadCount);


            }
            Future f = executor.submitToMember(new SimulateLoadTask(durationSec, k + 1, "latch" + latchId), member);
            futures.add(f);
        }


        for (Future f : futures) {
            try {

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Examples of com.hazelcast.core.IExecutorService

    }


    private void doExecute(boolean onKey, boolean onMember, String[] args) {
        // executeOnKey <echo-string> <key>
        try {
            IExecutorService executorService = hazelcast.getExecutorService("default");
            Echo callable = new Echo(args[1]);
            Future<String> future;
            if (onKey) {
                String key = args[2];
                future = executorService.submitToKeyOwner(callable, key);
            } else if (onMember) {
                int memberIndex = Integer.parseInt(args[2]);
                List<Member> members = new LinkedList(hazelcast.getCluster().getMembers());
                if (memberIndex >= members.size()) {
                    throw new IndexOutOfBoundsException("Member index: " + memberIndex + " must be smaller than " + members
                            .size());
                }
                Member member = members.get(memberIndex);
                future = executorService.submitToMember(callable, member);
            } else {
                future = executorService.submit(callable);
            }
            println("Result: " + future.get());
        } catch (InterruptedException e) {
            e.printStackTrace();
        } catch (ExecutionException e) {

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Examples of com.hazelcast.core.IExecutorService

    }


    private void executeOnMembers(String[] args) {
        // executeOnMembers <echo-string>
        try {
            IExecutorService executorService = hazelcast.getExecutorService("default");
            Echo task = new Echo(args[1]);
            Map<Member, Future<String>> results = executorService.submitToAllMembers(task);


            for (Future f : results.values()) {
                println(f.get());
            }
        } catch (InterruptedException e) {

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Examples of com.hazelcast.core.IExecutorService

        final Set<Member> membersSet = instances[0].getCluster().getMembers();
        final Member[] members = membersSet.toArray(new Member[membersSet.size()]);
        final Random random = new Random();
        final String name = "testSubmitToMembersCallable";
        for (int i = 0; i < k; i++) {
            final IExecutorService service = instances[i].getExecutorService(name);
            final String script = "hazelcast.getAtomicLong('" + name + "').incrementAndGet();";
            final int n = random.nextInt(k) + 1;
            sum += n;
            Member[] m = new Member[n];
            System.arraycopy(members, 0, m, 0, n);
            service.submitToMembers(new ScriptCallable(script, null), Arrays.asList(m), callback);
        }


        assertTrue(latch.await(30, TimeUnit.SECONDS));
        final IAtomicLong result = instances[0].getAtomicLong(name);
        assertEquals(sum, result.get());

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Examples of com.hazelcast.core.IExecutorService


            public void onComplete(Map<Member, Object> values) {
            }
        };
        for (int i = 0; i < k; i++) {
            final IExecutorService service = instances[i].getExecutorService("testSubmitToAllMembersCallable");
            final String script = "hazelcast.getAtomicLong('testSubmitToAllMembersCallable').incrementAndGet();";
            service.submitToAllMembers(new ScriptCallable(script, null), callback);
        }
        countDownLatch.await(30, TimeUnit.SECONDS);
        final IAtomicLong result = instances[0].getAtomicLong("testSubmitToAllMembersCallable");
        assertEquals(k * k, result.get());
        assertEquals(k * k, count.get());

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Examples of com.hazelcast.core.IExecutorService

     * Test the method isDone()
     */
    @Test
    public void testIsDoneMethod() throws Exception {
        Callable<String> task = new BasicTestTask();
        IExecutorService executor = createSingleNodeExecutorService("isDoneMethod");
        Future future = executor.submit(task);
        if (future.isDone()) {
            assertTrue(future.isDone());
        }
        assertEquals(future.get(), BasicTestTask.RESULT);
        assertTrue(future.isDone());

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Examples of com.hazelcast.core.IExecutorService

     * Test the Execution Callback
     */
    @Test
    public void testExecutionCallback() throws Exception {
        Callable<String> task = new BasicTestTask();
        IExecutorService executor = createSingleNodeExecutorService("testExecutionCallback");
        final CountDownLatch latch = new CountDownLatch(1);
        final ExecutionCallback executionCallback = new ExecutionCallback() {
            public void onResponse(Object response) {
                latch.countDown();
            }


            public void onFailure(Throwable t) {
            }
        };
        executor.submit(task, executionCallback);


        assertTrue(latch.await(2, TimeUnit.SECONDS));
    }

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Examples of com.hazelcast.core.IExecutorService

    public void testStatsIssue2039() throws InterruptedException, ExecutionException, TimeoutException {
        final Config config = new Config();
        final String name = "testStatsIssue2039";
        config.addExecutorConfig(new ExecutorConfig(name).setQueueCapacity(1).setPoolSize(1));
        final HazelcastInstance instance = createHazelcastInstance(config);
        final IExecutorService executorService = instance.getExecutorService(name);




        executorService.execute(new SleepLatchRunnable());


        assertTrue(SleepLatchRunnable.startLatch.await(30, TimeUnit.SECONDS));
        final Future waitingInQueue = executorService.submit(new EmptyRunnable());


        final Future rejected = executorService.submit(new EmptyRunnable());


        try {
            rejected.get(1, TimeUnit.MINUTES);
        } catch (Exception e) {
            boolean isRejected = e.getCause() instanceof RejectedExecutionException;
            if (!isRejected) {
                fail(e.toString());
            }
        } finally {
            SleepLatchRunnable.sleepLatch.countDown();
        }


        waitingInQueue.get(1, TimeUnit.MINUTES);


        final LocalExecutorStats stats = executorService.getLocalExecutorStats();
        assertEquals(2, stats.getStartedTaskCount());
        assertEquals(0, stats.getPendingTaskCount());
    }

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Examples of com.hazelcast.core.IExecutorService

    }




    @Test
    public void testExecutorServiceStats() throws InterruptedException, ExecutionException {
        final IExecutorService executorService = createSingleNodeExecutorService("testExecutorServiceStats");
        final int k = 10;
        LatchRunnable.latch = new CountDownLatch(k);


        for (int i = 0; i < k; i++) {
            executorService.execute(new LatchRunnable());
        }
        LatchRunnable.latch.await(2, TimeUnit.MINUTES);


        final Future<Boolean> f = executorService.submit(new SleepingTask(10000));
        Thread.sleep(1000);
        f.cancel(true);
        try {
            f.get();
        } catch (CancellationException e) {
        }


        final LocalExecutorStats stats = executorService.getLocalExecutorStats();
        assertEquals(k + 1, stats.getStartedTaskCount());
        assertEquals(k, stats.getCompletedTaskCount());
        assertEquals(0, stats.getPendingTaskCount());
        assertEquals(1, stats.getCancelledTaskCount());
    }

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