Examples of org.springframework.util.backoff.BackOff

Package org.springframework.util.backoff

Examples of org.springframework.util.backoff.BackOff

org.springframework.util.backoff.BackOff
he operation recovery/retry loop: long waitInterval = exec.nextBackOffMillis(); if (waitInterval == BackOffExecution.STOP) { // do not retry operation } else { // sleep, e.g. Thread.sleep(waitInterval) // retry operation } } Once the underlying operation has completed successfully, the execution instance can be simply discarded. @author Stephane Nicoll @since 4.1 @see BackOffExecution

 */
public class DefaultMessageListenerContainerTests {


  @Test
  public void applyBackOff() {
    BackOff mock = mock(BackOff.class);
    BackOffExecution execution = mock(BackOffExecution.class);
    given(execution.nextBackOff()).willReturn(BackOffExecution.STOP);
    given(mock.start()).willReturn(execution);


    DefaultMessageListenerContainer container = createContainer(mock, createFailingContainerFactory());
    container.start();
    assertEquals(true, container.isRunning());

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    verify(execution).nextBackOff();
  }


  @Test
  public void applyBackOffRetry() {
    BackOff mock = mock(BackOff.class);
    BackOffExecution execution = mock(BackOffExecution.class);
    given(execution.nextBackOff()).willReturn(50L, BackOffExecution.STOP);
    given(mock.start()).willReturn(execution);


    DefaultMessageListenerContainer container = createContainer(mock, createFailingContainerFactory());
    container.start();
    container.refreshConnectionUntilSuccessful();

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    verify(execution, times(2)).nextBackOff();
  }


  @Test
  public void recoverResetBackOff() {
    BackOff mock = mock(BackOff.class);
    BackOffExecution execution = mock(BackOffExecution.class);
    given(execution.nextBackOff()).willReturn(50L, 50L, 50L); // 3 attempts max
    given(mock.start()).willReturn(execution);


    DefaultMessageListenerContainer container = createContainer(mock, createRecoverableContainerFactory(1));
    container.start();
    container.refreshConnectionUntilSuccessful();

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  }


  @Test
  public void backOffOverridesRecoveryInterval() {
    DefaultJmsListenerContainerFactory factory = new DefaultJmsListenerContainerFactory();
    BackOff backOff = new FixedBackOff();
    factory.setBackOff(backOff);
    factory.setRecoveryInterval(2000L);


    SimpleJmsListenerEndpoint endpoint = new SimpleJmsListenerEndpoint();
    MessageListener messageListener = new MessageListenerAdapter();

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  }


  @Test
  public void testRecoveryInterval() {
    Object testBackOff = context.getBean("testBackOff");
    BackOff backOff1 = getBackOff("listener1");
    BackOff backOff2 = getBackOff("listener2");
    long recoveryInterval3 = getRecoveryInterval(DefaultMessageListenerContainer.class.getName() + "#0");


    assertSame(testBackOff, backOff1);
    assertSame(testBackOff, backOff2);
    assertEquals(DefaultMessageListenerContainer.DEFAULT_RECOVERY_INTERVAL, recoveryInterval3);

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    DefaultMessageListenerContainer container = this.context.getBean(containerBeanName, DefaultMessageListenerContainer.class);
    return (BackOff) new DirectFieldAccessor(container).getPropertyValue("backOff");
  }


  private long getRecoveryInterval(String containerBeanName) {
    BackOff backOff = getBackOff(containerBeanName);
    assertEquals(FixedBackOff.class, backOff.getClass());
    return ((FixedBackOff)backOff).getInterval();
  }

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Related Classes of org.springframework.util.backoff.BackOff

org.springframework.jms.config.JmsListenerContainerFactoryTests

org.springframework.jms.config.JmsNamespaceHandlerTests

org.springframework.jms.listener.DefaultMessageListenerContainerTests

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