Examples of RetryTemplate

org.springframework.osgi.service.importer.support.internal.support.RetryTemplate
Wrapper retry template. This class does specialized retries using a given callback and lock. @author Costin Leau
org.springframework.retry.support.RetryTemplate
Template class that simplifies the execution of operations with retry semantics.
Retryable operations are encapsulated in implementations of the {@link RetryCallback}interface and are executed using one of the supplied execute methods.
By default, an operation is retried if is throws any {@link Exception} or subclass of{@link Exception}. This behaviour can be changed by using the {@link #setRetryPolicy(RetryPolicy)} method.
Also by default, each operation is retried for a maximum of three attempts with no back off in between. This behaviour can be configured using the {@link #setRetryPolicy(RetryPolicy)} and {@link #setBackOffPolicy(BackOffPolicy)}properties. The {@link org.springframework.retry.backoff.BackOffPolicy} controls howlong the pause is between each individual retry attempt.
This class is thread-safe and suitable for concurrent access when executing operations and when performing configuration changes. As such, it is possible to change the number of retries on the fly, as well as the {@link BackOffPolicy} used and no in progressretryable operations will be affected. @author Rob Harrop @author Dave Syer @author Gary Russell @author Artem Bilan

Examples of org.springframework.retry.support.RetryTemplate

   * @param properties The properties.
   * @return The channel, or a wrapper.
   */
  private MessageChannel addRetryIfNeeded(final String name, final DirectChannel bridgeToModuleChannel,
      RedisPropertiesAccessor properties) {
    final RetryTemplate retryTemplate = buildRetryTemplateIfRetryEnabled(properties);
    if (retryTemplate == null) {
      return bridgeToModuleChannel;
    }
    else {
      DirectChannel channel = new DirectChannel() {


        @Override
        protected boolean doSend(final Message<?> message, final long timeout) {
          try {
            return retryTemplate.execute(new RetryCallback<Boolean, Exception>() {


              @Override
              public Boolean doWithRetry(RetryContext context) throws Exception {
                return bridgeToModuleChannel.send(message, timeout);
              }

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Examples of org.springframework.retry.support.RetryTemplate

    assertThat(
        channel.getClass().getName(), containsString("RedisMessageBus$")); // retry wrapper
    assertThat(
        TestUtils.getPropertyValue(TestUtils.getPropertyValue(endpoint, "consumers", List.class).get(1),
            "outputChannel").getClass().getName(), containsString("RedisMessageBus$")); // retry wrapper
    RetryTemplate retry = TestUtils.getPropertyValue(channel, "val$retryTemplate", RetryTemplate.class);
    assertEquals(23, TestUtils.getPropertyValue(retry, "retryPolicy.maxAttempts"));
    assertEquals(2000L, TestUtils.getPropertyValue(retry, "backOffPolicy.initialInterval"));
    assertEquals(20000L, TestUtils.getPropertyValue(retry, "backOffPolicy.maxInterval"));
    assertEquals(5.0, TestUtils.getPropertyValue(retry, "backOffPolicy.multiplier"));
  }

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Examples of org.springframework.retry.support.RetryTemplate

        /**
         * Do not have Spring AMQP re-try messages upon failure, leave it to Camel
         * @return An advice chain populated with a NeverRetryPolicy
         */
        public final Advice[] getAdviceChain() {
            RetryTemplate retryRule = new RetryTemplate();
            retryRule.setRetryPolicy(new NeverRetryPolicy());
            
            StatefulRetryOperationsInterceptorFactoryBean retryOperation = new StatefulRetryOperationsInterceptorFactoryBean();
            retryOperation.setRetryOperations(retryRule);
            retryOperation.setMessageKeyGeneretor(new DefaultKeyGenerator());

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Examples of org.springframework.retry.support.RetryTemplate

        /**
         * Do not have Spring AMQP re-try messages upon failure, leave it to Camel
         * @return An advice chain populated with a NeverRetryPolicy
         */
        public final Advice[] getAdviceChain() {
            RetryTemplate retryRule = new RetryTemplate();
            retryRule.setRetryPolicy(new NeverRetryPolicy());
            
            StatefulRetryOperationsInterceptorFactoryBean retryOperation = new StatefulRetryOperationsInterceptorFactoryBean();
            retryOperation.setRetryOperations(retryRule);
            retryOperation.setMessageKeyGeneretor(new DefaultKeyGenerator());

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Examples of org.springframework.retry.support.RetryTemplate

    assertEquals(2, count);
  }


  @Test
  public void testDefaultInterceptorWithRecovery() throws Exception {
    RetryTemplate template = new RetryTemplate();
    template.setRetryPolicy(new SimpleRetryPolicy(1, Collections
        .<Class<? extends Throwable>, Boolean> singletonMap(Exception.class, true)));
    interceptor.setRetryOperations(template);
    interceptor.setRecoverer(new MethodInvocationRecoverer<Void>() {
      public Void recover(Object[] args, Throwable cause) {
        return null;

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Examples of org.springframework.retry.support.RetryTemplate

      public Object invoke(MethodInvocation invocation) throws Throwable {
        list.add("chain");
        return invocation.proceed();
      }
    });
    RetryTemplate template = new RetryTemplate();
    template.setRetryPolicy(new SimpleRetryPolicy(2, Collections
        .<Class<? extends Throwable>, Boolean> singletonMap(Exception.class, true)));
    interceptor.setRetryOperations(template);
    service.service();
    assertEquals(2, count);
    assertEquals(2, list.size());

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Examples of org.springframework.retry.support.RetryTemplate

  }


  @Test
  public void testRetryExceptionAfterTooManyAttempts() throws Exception {
    ((Advised) service).addAdvice(interceptor);
    RetryTemplate template = new RetryTemplate();
    template.setRetryPolicy(new NeverRetryPolicy());
    interceptor.setRetryOperations(template);
    try {
      service.service();
      fail("Expected Exception.");
    }

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Examples of org.springframework.retry.support.RetryTemplate

    assertEquals(3, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
  }


  @Test
  public void testWithCustomRetryTemplate() {
    RetryOperations retryOperations = new RetryTemplate();
    StatefulRetryOperationsInterceptor interceptor = RetryInterceptorBuilder.stateful()
        .retryOperations(retryOperations)
        .build();
    assertEquals(3, TestUtils.getPropertyValue(interceptor, "retryOperations.retryPolicy.maxAttempts"));
    assertSame(retryOperations, TestUtils.getPropertyValue(interceptor, "retryOperations"));

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Examples of org.springframework.retry.support.RetryTemplate

        /**
         * Do not have Spring AMQP re-try messages upon failure, leave it to Camel
         * @return An advice chain populated with a NeverRetryPolicy
         */
        public final Advice[] getAdviceChain() {
            RetryTemplate retryRule = new RetryTemplate();
            retryRule.setRetryPolicy(new NeverRetryPolicy());
            
            StatefulRetryOperationsInterceptorFactoryBean retryOperation = new StatefulRetryOperationsInterceptorFactoryBean();
            retryOperation.setRetryOperations(retryRule);
            retryOperation.setMessageKeyGeneretor(new DefaultKeyGenerator());

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Examples of org.springframework.retry.support.RetryTemplate

    SimpleMessageConverter messageConverter = new SimpleMessageConverter();
    // There will be no key for these messages so they cannot be recovered...
    messageConverter.setCreateMessageIds(false);
    this.messageConverter = messageConverter;
    // Beware of context cache busting if retry policy fails...
    this.retryTemplate = new RetryTemplate();
    this.retryTemplate.setRetryContextCache(new MapRetryContextCache(1));
    // The container should have shutdown, so there are now no active consumers
    exception.handleAssertionErrors();
    exception.expectMessage("expected:<1> but was:<0>");
    doTestStatefulRetry(messageCount, txSize, failFrequency, concurrentConsumers);

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