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

  }


  @Bean
  public ThreadPoolTaskExecutor clientInboundChannelExecutor() {
    TaskExecutorRegistration reg = getClientInboundChannelRegistration().getOrCreateTaskExecRegistration();
    ThreadPoolTaskExecutor executor = reg.getTaskExecutor();
    executor.setThreadNamePrefix("clientInboundChannel-");
    return executor;
  }

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  }


  @Bean
  public ThreadPoolTaskExecutor clientOutboundChannelExecutor() {
    TaskExecutorRegistration reg = getClientOutboundChannelRegistration().getOrCreateTaskExecRegistration();
    ThreadPoolTaskExecutor executor = reg.getTaskExecutor();
    executor.setThreadNamePrefix("clientOutboundChannel-");
    return executor;
  }

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  }


  @Bean
  public ThreadPoolTaskExecutor brokerChannelExecutor() {
    ChannelRegistration reg = getBrokerRegistry().getBrokerChannelRegistration();
    ThreadPoolTaskExecutor executor;
    if (reg.hasTaskExecutor()) {
      executor = reg.taskExecutor().getTaskExecutor();
    }
    else {
      // Should never be used
      executor = new ThreadPoolTaskExecutor();
      executor.setCorePoolSize(0);
      executor.setMaxPoolSize(1);
      executor.setQueueCapacity(0);
    }
    executor.setThreadNamePrefix("brokerChannel-");
    return executor;
  }

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    this.keepAliveSeconds = keepAliveSeconds;
    return this;
  }


  protected ThreadPoolTaskExecutor getTaskExecutor() {
    ThreadPoolTaskExecutor executor = (this.taskExecutor != null ? this.taskExecutor : new ThreadPoolTaskExecutor());
    executor.setCorePoolSize(this.corePoolSize);
    executor.setMaxPoolSize(this.maxPoolSize);
    executor.setKeepAliveSeconds(this.keepAliveSeconds);
    executor.setQueueCapacity(this.queueCapacity);
    executor.setAllowCoreThreadTimeOut(true);
    return executor;
  }

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    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

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        int total = 10000;
        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

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  }


  @Test
  public void testBufferedExecuteRejected() throws Exception {


    ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
    taskExecutor.setCorePoolSize(1);
    taskExecutor.setMaxPoolSize(1);
    taskExecutor.setQueueCapacity(0);
    taskExecutor.afterPropertiesSet();


    ThrottledTaskExecutor executor = new ThrottledTaskExecutor(taskExecutor, 10);
    service = new ExecutorCompletionService<String>(executor);


    service.submit(new Callable<String>() {

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  @Override
  public Collection<StepExecution> handle(StepExecutionSplitter stepSplitter,
      StepExecution stepExecution) throws Exception {
    final List<Future<StepExecution>> tasks = new ArrayList<Future<StepExecution>>();
    final Set<StepExecution> result = new HashSet<StepExecution>();
    final ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();


    int stepExecutionCount = jobRepository.getStepExecutionCount(stepExecution.getJobExecution().getJobInstance(), stepExecution.getStepName());


    boolean isRestart = stepExecutionCount > 1;


    Set<StepExecution> partitionStepExecutions = splitStepExecution(stepExecution, isRestart);


    for (StepExecution curStepExecution : partitionStepExecutions) {
      partitionStepNames.add(curStepExecution.getStepName());
    }


    taskExecutor.setCorePoolSize(threads);
    taskExecutor.setMaxPoolSize(threads);


    taskExecutor.initialize();


    for (final StepExecution curStepExecution : partitionStepExecutions) {
      final FutureTask<StepExecution> task = createTask(step, curStepExecution);


      try {
        taskExecutor.execute(task);
        tasks.add(task);
      } catch (TaskRejectedException e) {
        // couldn't execute one of the tasks
        ExitStatus exitStatus = ExitStatus.FAILED
            .addExitDescription("TaskExecutor rejected the task for this step.");

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    factory = new FaultTolerantStepFactoryBean<String, String>();


    factory.setBeanName("stepName");
    factory.setTransactionManager(transactionManager);
    factory.setCommitInterval(3);
    ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
    taskExecutor.setCorePoolSize(3);
    taskExecutor.setMaxPoolSize(6);
    taskExecutor.setQueueCapacity(0);
    taskExecutor.afterPropertiesSet();
    factory.setTaskExecutor(taskExecutor);


  }

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    factory = new FaultTolerantStepFactoryBean<String, String>();


    factory.setTransactionManager(transactionManager);
    factory.setBeanName("stepName");
    factory.setCommitInterval(3);
    ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
    taskExecutor.setCorePoolSize(3);
    taskExecutor.setMaxPoolSize(6);
    taskExecutor.setQueueCapacity(0);
    taskExecutor.afterPropertiesSet();
    factory.setTaskExecutor(taskExecutor);


    factory.setSkipLimit(10);
    factory.setSkippableExceptionClasses(getExceptionMap(Exception.class));

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