Examples of org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor

Package org.springframework.scheduling.concurrent

Examples of org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor

org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor
JavaBean that allows for configuring a JDK 1.5 {@link java.util.concurrent.ThreadPoolExecutor}in bean style (through its "corePoolSize", "maxPoolSize", "keepAliveSeconds", "queueCapacity" properties), exposing it as a Spring {@link org.springframework.core.task.TaskExecutor}. This is an alternative to configuring a ThreadPoolExecutor instance directly using constructor injection, with a separate {@link ConcurrentTaskExecutor} adapter wrapping it.
For any custom needs, in particular for defining a {@link java.util.concurrent.ScheduledThreadPoolExecutor}, it is recommended to use a straight definition of the Executor instance or a factory method definition that points to the JDK 1.5 {@link java.util.concurrent.Executors} class.To expose such a raw Executor as a Spring {@link org.springframework.core.task.TaskExecutor}, simply wrap it with a {@link ConcurrentTaskExecutor} adapter.
NOTE: This class implements Spring's {@link org.springframework.core.task.TaskExecutor} interface as well as the JDK 1.5{@link java.util.concurrent.Executor} interface, with the former being the primaryinterface, the other just serving as secondary convenience. For this reason, the exception handling follows the TaskExecutor contract rather than the Executor contract, in particular regarding the {@link org.springframework.core.task.TaskRejectedException}. @author Juergen Hoeller @since 2.0 @see org.springframework.core.task.TaskExecutor @see java.util.concurrent.Executor @see java.util.concurrent.ThreadPoolExecutor @see java.util.concurrent.ScheduledThreadPoolExecutor @see java.util.concurrent.Executors @see ConcurrentTaskExecutor

    public boolean isUseRouteBuilder() {
        return false;
    }


    private void sendMessagesToQueue() throws Exception {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.afterPropertiesSet();
        executor.execute(new Runnable() {
            public void run() {
                for (int i = 0; i < 10; i++) {
                    // when this delay is removed, the seda endpoint has ordering issues
                    try {
                        // do some random sleep to simulate spread in user activity

View Full Code Here

    public void testConcurrentConsumersWithReply() throws Exception {
        // latch for the 5 exchanges we expect
        final CountDownLatch latch = new CountDownLatch(5);


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int count = i;
            executor.execute(new Runnable() {
                public void run() {
                    // request body is InOut pattern and thus we expect a reply (JMSReply)
                    Object response = template.requestBody("activemq:a", "World #" + count);
                    assertEquals("Bye World #" + count, response);
                    latch.countDown();

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        }
        super.tearDown();
    }


    protected TaskExecutor createTaskExecutor() {
        ThreadPoolTaskExecutor exec = new CleanThreadPoolTaskExecutor();
        exec.setWaitForTasksToCompleteOnShutdown(true);
        exec.setQueueCapacity(0);
        exec.afterPropertiesSet();
        return exec;
    }

View Full Code Here

    public void testConcurrentConsumersWithReply() throws Exception {
        // latch for the 5 exchanges we expect
        final CountDownLatch latch = new CountDownLatch(5);


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int count = i;
            executor.execute(new Runnable() {
                public void run() {
                    // request body is InOut pattern and thus we expect a reply (JMSReply)
                    Object response = template.requestBody("activemq:a", "World #" + count);
                    assertEquals("Bye World #" + count, response);
                    latch.countDown();
                }
            });
        }


        long start = System.currentTimeMillis();


        // wait for test completion, timeout after 30 sec to let other unit test run to not wait forever
        latch.await(30000L, TimeUnit.MILLISECONDS);
        assertEquals("Latch should be zero", 0, latch.getCount());


        long delta = System.currentTimeMillis() - start;
        assertTrue("Should be faster than 20000 millis, took " + delta + " millis", delta < 20000L);
        executor.shutdown();
    }

View Full Code Here


        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(total);


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int threadCount = i;
            executor.execute(new Runnable() {
                public void run() {
                    int start = threadCount * 200;
                    for (int i = 0; i < 200; i++) {
                        try {
                            // do some random sleep to simulate spread in user activity
                            Thread.sleep(new Random().nextInt(10));
                        } catch (InterruptedException e) {
                            // ignore
                        }
                        template.sendBody(uri, "<person><id>" + (start + i + 1) + "</id><name>James</name></person>");
                    }
                }
            });
        }


        mock.assertNoDuplicates(body());


        assertMockEndpointsSatisfied();
        executor.shutdown();
    }

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        int total = 200;
        final int group = total / 20;
        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(total);


        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(20);
        executor.afterPropertiesSet();
        for (int i = 0; i < 20; i++) {
            final int threadCount = i;
            executor.execute(new Runnable() {
                public void run() {
                    int start = threadCount * group;
                    for (int i = 0; i < group; i++) {
                        try {
                            // do some random sleep to simulate spread in user activity

View Full Code Here


        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(total);


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int threadCount = i;
            executor.execute(new Runnable() {
                public void run() {
                    int start = threadCount * 200;
                    for (int i = 0; i < 200; i++) {
                        try {
                            // do some random sleep to simulate spread in user activity

View Full Code Here

        // latch for the 5 exchanges we expect
        final CountDownLatch latch = new CountDownLatch(5);
        long start = System.currentTimeMillis();


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int count = i;
            executor.execute(new Runnable() {
                public void run() {
                    // requestbody is InOut pattern and thus we expect a reply (JMSReply)
                    Object response = template.requestBody("activemq:a", "World #" + count);
                    assertEquals("Bye World #" + count, response);
                    latch.countDown();

View Full Code Here

        int total = 2000;
        final int group = total / 20;
        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedMessageCount(total);


        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(20);
        executor.afterPropertiesSet();
        for (int i = 0; i < 20; i++) {
            final int threadCount = i;
            executor.execute(new Runnable() {
                public void run() {
                    int start = threadCount * group;
                    for (int i = 0; i < group; i++) {
                        try {
                            // do some random sleep to simulate spread in user activity

View Full Code Here

    public void testConcurrentConsumersWithReply() throws Exception {
        // latch for the 5 exchanges we expect
        final CountDownLatch latch = new CountDownLatch(5);


        // setup a task executor to be able send the messages in parallel
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(5);
        executor.afterPropertiesSet();
        for (int i = 0; i < 5; i++) {
            final int count = i;
            executor.execute(new Runnable() {
                public void run() {
                    // request body is InOut pattern and thus we expect a reply (JMSReply)
                    Object response = template.requestBody("activemq:a", "World #" + count);
                    assertEquals("Bye World #" + count, response);
                    latch.countDown();

View Full Code Here

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