Examples with RetryCallback cn.taketoday.retry.RetryCallback used on opensource projects

Example 1 with RetryCallback

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

the class MethodInvocationRetryListenerSupportTests method testCloseWithRetryCallbackShouldntCallDoCloseMethod.

@Test
public void testCloseWithRetryCallbackShouldntCallDoCloseMethod() {
    final AtomicInteger callsOnDoCloseMethod = new AtomicInteger(0);
    MethodInvocationRetryListenerSupport support = new MethodInvocationRetryListenerSupport() {

        @Override
        protected <T, E extends Throwable> void doClose(RetryContext context, MethodInvocationRetryCallback<T, E> callback, Throwable throwable) {
            callsOnDoCloseMethod.incrementAndGet();
        }
    };
    RetryContext context = mock(RetryContext.class);
    RetryCallback callback = mock(RetryCallback.class);
    support.close(context, callback, null);
    assertEquals(0, callsOnDoCloseMethod.get());
}

Example 2 with RetryCallback

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

the class RetryTemplateTests method testSpecificExceptionRetry.

@Test
public void testSpecificExceptionRetry() throws Throwable {
    for (int x = 1; x <= 10; x++) {
        final int attemptsBeforeSuccess = x;
        final AtomicInteger attempts = new AtomicInteger(0);
        RetryCallback<String, IllegalStateException> callback = new RetryCallback<String, IllegalStateException>() {

            @Override
            public String doWithRetry(RetryContext context) throws IllegalStateException {
                if (attempts.incrementAndGet() < attemptsBeforeSuccess) {
                    // can't really tell the difference between runtime exceptions.
                    throw new IllegalArgumentException("Planned");
                }
                return "foo";
            }
        };
        RetryTemplate retryTemplate = new RetryTemplate();
        retryTemplate.setRetryPolicy(new SimpleRetryPolicy(x));
        retryTemplate.execute(callback);
        assertEquals(x, attempts.get());
    }
}

Example 3 with RetryCallback

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

the class StatefulRecoveryRetryTests method testCacheCapacityNotReachedIfRecovered.

@Test
public void testCacheCapacityNotReachedIfRecovered() throws Throwable {
    SimpleRetryPolicy retryPolicy = new SimpleRetryPolicy(1);
    this.retryTemplate.setRetryPolicy(retryPolicy);
    this.retryTemplate.setRetryContextCache(new MapRetryContextCache(2));
    final StringHolder item = new StringHolder("foo");
    RetryState state = new DefaultRetryState(item);
    RetryCallback<Object, Exception> callback = new RetryCallback<Object, Exception>() {

        @Override
        public Object doWithRetry(RetryContext context) throws Exception {
            StatefulRecoveryRetryTests.this.count++;
            throw new RuntimeException("Barf!");
        }
    };
    RecoveryCallback<Object> recoveryCallback = new RecoveryCallback<Object>() {

        @Override
        public Object recover(RetryContext context) throws Exception {
            return null;
        }
    };
    try {
        this.retryTemplate.execute(callback, recoveryCallback, state);
        fail("Expected RuntimeException");
    } catch (RuntimeException e) {
        assertEquals("Barf!", e.getMessage());
    }
    this.retryTemplate.execute(callback, recoveryCallback, state);
    RetryContext context = this.retryTemplate.open(retryPolicy, state);
    // True after exhausted - the history is reset...
    assertEquals(0, context.getRetryCount());
}

Example 4 with RetryCallback

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

the class StatefulRecoveryRetryTests method testCacheCapacity.

@Test
public void testCacheCapacity() throws Throwable {
    this.retryTemplate.setRetryPolicy(new SimpleRetryPolicy(1));
    this.retryTemplate.setRetryContextCache(new MapRetryContextCache(1));
    RetryCallback<Object, Exception> callback = context -> {
        StatefulRecoveryRetryTests.this.count++;
        throw new RuntimeException("Barf!");
    };
    try {
        this.retryTemplate.execute(callback, new DefaultRetryState("foo"));
        fail("Expected RuntimeException");
    } catch (RuntimeException e) {
        assertEquals("Barf!", e.getMessage());
    }
    try {
        this.retryTemplate.execute(callback, new DefaultRetryState("bar"));
        fail("Expected RetryException");
    } catch (RetryException e) {
        String message = e.getNestedMessage();
        assertTrue("Message does not contain 'capacity': " + message, message.contains("capacity"));
    }
}

Example 5 with RetryCallback

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

the class StatefulRecoveryRetryTests method testSwitchToStatelessForNoRollback.

@Test
public void testSwitchToStatelessForNoRollback() throws Throwable {
    this.retryTemplate.setRetryPolicy(new SimpleRetryPolicy(1));
    // Roll back for these:
    BinaryExceptionClassifier classifier = new BinaryExceptionClassifier(Collections.<Class<? extends Throwable>>singleton(DataAccessException.class));
    // ...but not these:
    assertFalse(classifier.classify(new RuntimeException()));
    final String input = "foo";
    RetryState state = new DefaultRetryState(input, classifier);
    RetryCallback<String, Exception> callback = new RetryCallback<String, Exception>() {

        @Override
        public String doWithRetry(RetryContext context) throws Exception {
            throw new RuntimeException("Barf!");
        }
    };
    RecoveryCallback<String> recoveryCallback = new RecoveryCallback<String>() {

        @Override
        public String recover(RetryContext context) {
            StatefulRecoveryRetryTests.this.count++;
            StatefulRecoveryRetryTests.this.list.add(input);
            return input;
        }
    };
    Object result = null;
    // On the second retry, the recovery path is taken...
    result = this.retryTemplate.execute(callback, recoveryCallback, state);
    // default result is the item
    assertEquals(input, result);
    assertEquals(1, this.count);
    assertEquals(input, this.list.get(0));
}