Examples of java.util.concurrent.ExecutorService.invokeAll()

Class java.util.concurrent.ExecutorService

Examples of java.util.concurrent.ExecutorService.invokeAll()

java.util.concurrent.ExecutorService.invokeAll()
Executes the given tasks, returning a list of Futures holding their status and results when all complete. {@link Future#isDone} is {@code true} for eachelement of the returned list. Note that a completed task could have terminated either normally or by throwing an exception. The results of this method are undefined if the given collection is modified while this operation is in progress. @param tasks the collection of tasks @param < T> the type of the values returned from the tasks @return a list of Futures representing the tasks, in the samesequential order as produced by the iterator for the given task list, each of which has completed @throws InterruptedException if interrupted while waiting, inwhich case unfinished tasks are cancelled @throws NullPointerException if tasks or any of its elements are {@code null} @throws RejectedExecutionException if any task cannot bescheduled for execution

            }


            ExecutorService executor = Executors.newFixedThreadPool(numThreads);
            long start = System.currentTimeMillis();


            List<Future<Long>> results = executor.invokeAll(clients,
                                                            10, TimeUnit.MINUTES);
            long end = System.currentTimeMillis();
            long count = 0;
            for (Future<Long> r : results) {
                if (!r.isDone()) {

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        mock.expectedBodiesReceived(total);
        mock.expectedHeaderReceived("total", total);
        mock.expectedPropertyReceived(Exchange.AGGREGATED_SIZE, size);


        // submit all tasks
        service.invokeAll(tasks);


        assertMockEndpointsSatisfied();


        assertEquals(100, COUNTER.get());
        // Need to shutdown the threadpool

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        MockEndpoint mock = getMockEndpoint("mock:result");
        MockEndpoint mock2 = getMockEndpoint2("mock:result");


        // submit all tasks
        service.invokeAll(tasks);
        service.shutdown();
        service.awaitTermination(10, TimeUnit.SECONDS);


        int contextCount = mock.getReceivedCounter();
        int context2Count = mock2.getReceivedCounter();

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                    }
                });
            }


            final ExecutorService executorService = Executors.newFixedThreadPool(10);
            final List<Future<String>> results = executorService.invokeAll(callables);
            final Set<String> replies = new HashSet<String>();
            for (Future<String> future : results) {
                // wait at most 60 sec to not hang test
                String reply = future.get(60, TimeUnit.SECONDS);
                assertTrue(reply.startsWith("Bye "));

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        for (int i = 0; i < _noOfThreads; i++) {
            callables.add(new WebServiceInvoker(i));
        }


        ExecutorService executorService = Executors.newFixedThreadPool(DEFAULT_THREAD_COUNT);
        Collection<Future<String>> futures = executorService.invokeAll(callables);
        Assert.assertEquals(futures.size(), _noOfThreads);
        int i = 0;


        for (Future<String> future : futures) {
            response = future.get();

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                public Boolean call() {
                    return threadPoolRejectionCommand().execute();
                }
            });
        }
        final Collection<Future<Boolean>> results = executorService.invokeAll(rejectCommands);
        boolean rejectionFound = false;
        for (final Future<Boolean> future : results) {
            if (future.get()) {
                rejectionFound = true;
            }

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        return i;
      }
    };


    List<Future<Integer>> futures =
        executor.invokeAll(Collections.nCopies(10, incrementTask));


    for (int i = 0; i < 10; i++) {
      Future<Integer> future = futures.get(i);
      assertTrue("Task should have been run before being returned", future.isDone());
      assertEquals(i, future.get().intValue());

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      Reader reader = new Reader(getDatabaseURL(server));
      workers.add(reader);
    }


    List<Future<Void>> futures = executor.invokeAll(workers);


    System.out.println("Threads started, waiting for the end");


    executor.shutdown();
    Assert.assertTrue(executor.awaitTermination(10, TimeUnit.MINUTES));

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      Reader reader = new Reader(getDatabaseURL(server));
      workers.add(reader);
    }


    List<Future<Void>> futures = executor.invokeAll(workers);


    System.out.println("Threads started, waiting for the end");


    executor.shutdown();
    Assert.assertTrue(executor.awaitTermination(10, TimeUnit.MINUTES));

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               List<Callable<CheckResult>> tasks = new ArrayList<Callable<CheckResult>>();
               for (int i = 0; i < checkThreads; ++i) {
                  Range range = Range.divideRange(numEntries, checkThreads, i);
                  tasks.add(new CheckRangeTask(range.getStart(), range.getEnd()));
               }
               for (Future<CheckResult> future : executor.invokeAll(tasks)) {
                  CheckResult value = future.get();
                  result.merge(value);
               }
               executor.shutdown();
            }

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