Examples with MaxAttemptsRetryPolicy cn.taketoday.retry.policy.MaxAttemptsRetryPolicy used on opensource projects

Example 1 with MaxAttemptsRetryPolicy

use of cn.taketoday.retry.policy.MaxAttemptsRetryPolicy in project today-infrastructure by TAKETODAY.

the class RetryTemplateBuilder method build.

/* ---------------- Building -------------- */
/**
 * Finish configuration and build resulting {@link RetryTemplate}. For default
 * behaviour and concurrency note see class-level doc of {@link RetryTemplateBuilder}.
 * The {@code retryPolicy} of the returned {@link RetryTemplate} is always an instance
 * of {@link CompositeRetryPolicy}, that consists of one base policy, and of
 * {@link BinaryExceptionClassifierRetryPolicy}. The motivation is: whatever base
 * policy we use, exception classification is extremely recommended.
 *
 * @return new instance of {@link RetryTemplate}
 */
public RetryTemplate build() {
    RetryTemplate retryTemplate = new RetryTemplate();
    // Exception classifier
    BinaryExceptionClassifier exceptionClassifier = classifierBuilder != null ? classifierBuilder.build() : BinaryExceptionClassifier.defaultClassifier();
    if (this.baseRetryPolicy == null) {
        this.baseRetryPolicy = new MaxAttemptsRetryPolicy();
    }
    CompositeRetryPolicy finalPolicy = new CompositeRetryPolicy();
    finalPolicy.setPolicies(new RetryPolicy[] { baseRetryPolicy, new BinaryExceptionClassifierRetryPolicy(exceptionClassifier) });
    retryTemplate.setRetryPolicy(finalPolicy);
    if (this.backOffPolicy == null) {
        this.backOffPolicy = new NoBackOffPolicy();
    }
    retryTemplate.setBackOffPolicy(this.backOffPolicy);
    if (this.listeners != null) {
        retryTemplate.setListeners(this.listeners.toArray(new RetryListener[0]));
    }
    return retryTemplate;
}

Example 2 with MaxAttemptsRetryPolicy

use of cn.taketoday.retry.policy.MaxAttemptsRetryPolicy in project today-infrastructure by TAKETODAY.

the class RetryTemplateBuilder method maxAttempts.

/* ---------------- Configure retry policy -------------- */
/**
 * Limits maximum number of attempts to provided value.
 * <p>
 * Invocation of this method does not discard default exception classification rule,
 * that is "retry only on {@link Exception} and it's subclasses".
 *
 * @param maxAttempts includes initial attempt and all retries. E.g: maxAttempts = 3
 * means one initial attempt and two retries.
 * @return this
 * @see MaxAttemptsRetryPolicy
 */
public RetryTemplateBuilder maxAttempts(int maxAttempts) {
    Assert.isTrue(maxAttempts > 0, "Number of attempts should be positive");
    Assert.isNull(this.baseRetryPolicy, "You have already selected another retry policy");
    this.baseRetryPolicy = new MaxAttemptsRetryPolicy(maxAttempts);
    return this;
}

Example 3 with MaxAttemptsRetryPolicy

use of cn.taketoday.retry.policy.MaxAttemptsRetryPolicy in project today-framework by TAKETODAY.

the class RetryTemplateBuilder method maxAttempts.

/* ---------------- Configure retry policy -------------- */
/**
 * Limits maximum number of attempts to provided value.
 * <p>
 * Invocation of this method does not discard default exception classification rule,
 * that is "retry only on {@link Exception} and it's subclasses".
 *
 * @param maxAttempts includes initial attempt and all retries. E.g: maxAttempts = 3
 * means one initial attempt and two retries.
 * @return this
 * @see MaxAttemptsRetryPolicy
 */
public RetryTemplateBuilder maxAttempts(int maxAttempts) {
    Assert.isTrue(maxAttempts > 0, "Number of attempts should be positive");
    Assert.isNull(this.baseRetryPolicy, "You have already selected another retry policy");
    this.baseRetryPolicy = new MaxAttemptsRetryPolicy(maxAttempts);
    return this;
}

Example 4 with MaxAttemptsRetryPolicy

use of cn.taketoday.retry.policy.MaxAttemptsRetryPolicy in project today-framework by TAKETODAY.

the class RetryTemplateBuilder method build.

/* ---------------- Building -------------- */
/**
 * Finish configuration and build resulting {@link RetryTemplate}. For default
 * behaviour and concurrency note see class-level doc of {@link RetryTemplateBuilder}.
 * The {@code retryPolicy} of the returned {@link RetryTemplate} is always an instance
 * of {@link CompositeRetryPolicy}, that consists of one base policy, and of
 * {@link BinaryExceptionClassifierRetryPolicy}. The motivation is: whatever base
 * policy we use, exception classification is extremely recommended.
 *
 * @return new instance of {@link RetryTemplate}
 */
public RetryTemplate build() {
    RetryTemplate retryTemplate = new RetryTemplate();
    // Exception classifier
    BinaryExceptionClassifier exceptionClassifier = classifierBuilder != null ? classifierBuilder.build() : BinaryExceptionClassifier.defaultClassifier();
    if (this.baseRetryPolicy == null) {
        this.baseRetryPolicy = new MaxAttemptsRetryPolicy();
    }
    CompositeRetryPolicy finalPolicy = new CompositeRetryPolicy();
    finalPolicy.setPolicies(new RetryPolicy[] { baseRetryPolicy, new BinaryExceptionClassifierRetryPolicy(exceptionClassifier) });
    retryTemplate.setRetryPolicy(finalPolicy);
    if (this.backOffPolicy == null) {
        this.backOffPolicy = new NoBackOffPolicy();
    }
    retryTemplate.setBackOffPolicy(this.backOffPolicy);
    if (this.listeners != null) {
        retryTemplate.setListeners(this.listeners.toArray(new RetryListener[0]));
    }
    return retryTemplate;
}

Example 5 with MaxAttemptsRetryPolicy

use of cn.taketoday.retry.policy.MaxAttemptsRetryPolicy in project today-framework by TAKETODAY.

the class RetryTemplateBuilderTests method testBasicCustomization.

@Test
public void testBasicCustomization() {
    RetryListener listener1 = mock(RetryListener.class);
    RetryListener listener2 = mock(RetryListener.class);
    RetryTemplate template = RetryTemplate.builder().maxAttempts(10).exponentialBackoff(99, 1.5, 1717).retryOn(IOException.class).retryOn(Collections.<Class<? extends Throwable>>singletonList(IllegalArgumentException.class)).traversingCauses().withListener(listener1).withListeners(Collections.singletonList(listener2)).build();
    PolicyTuple policyTuple = PolicyTuple.extractWithAsserts(template);
    BinaryExceptionClassifier classifier = policyTuple.exceptionClassifierRetryPolicy.getExceptionClassifier();
    Assert.assertTrue(classifier.classify(new FileNotFoundException()));
    Assert.assertTrue(classifier.classify(new IllegalArgumentException()));
    Assert.assertFalse(classifier.classify(new RuntimeException()));
    Assert.assertFalse(classifier.classify(new OutOfMemoryError()));
    Assert.assertTrue(policyTuple.baseRetryPolicy instanceof MaxAttemptsRetryPolicy);
    Assert.assertEquals(10, ((MaxAttemptsRetryPolicy) policyTuple.baseRetryPolicy).getMaxAttempts());
    List<RetryListener> listeners = Arrays.asList(getPropertyValue(template, "listeners", RetryListener[].class));
    Assert.assertEquals(2, listeners.size());
    Assert.assertTrue(listeners.contains(listener1));
    Assert.assertTrue(listeners.contains(listener2));
    Assert.assertTrue(getPropertyValue(template, "backOffPolicy") instanceof ExponentialBackOffPolicy);
}