/*
* Copyright 2006-2013 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.batch.core.step.item;
import java.util.Collection;
import java.util.Collections;
import junit.framework.TestCase;
import org.springframework.batch.repeat.RepeatContext;
import org.springframework.batch.repeat.context.RepeatContextSupport;
import org.springframework.batch.repeat.exception.SimpleLimitExceptionHandler;
import org.springframework.batch.repeat.support.RepeatSynchronizationManager;
import org.springframework.retry.RetryContext;
import org.springframework.retry.RetryPolicy;
import org.springframework.retry.policy.AlwaysRetryPolicy;
import org.springframework.retry.policy.NeverRetryPolicy;
/**
* @author Dave Syer
*
*/
public class SimpleRetryExceptionHandlerTests extends TestCase {
private RepeatContext context = new RepeatContextSupport(new RepeatContextSupport(null));
/*
* (non-Javadoc)
*
* @see junit.framework.TestCase#setUp()
*/
@Override
protected void setUp() throws Exception {
RepeatSynchronizationManager.register(context);
}
/*
* (non-Javadoc)
*
* @see junit.framework.TestCase#tearDown()
*/
@Override
protected void tearDown() throws Exception {
RepeatSynchronizationManager.clear();
}
/**
* Test method for
* {@link org.springframework.batch.core.step.item.SimpleRetryExceptionHandler#handleException(org.springframework.batch.repeat.RepeatContext, java.lang.Throwable)} .
*/
public void testRethrowWhenRetryExhausted() throws Throwable {
RetryPolicy retryPolicy = new NeverRetryPolicy();
RuntimeException ex = new RuntimeException("foo");
SimpleRetryExceptionHandler handler = getHandlerAfterRetry(retryPolicy, ex, Collections
.<Class<? extends Throwable>> singleton(Error.class));
// Then pretend to handle the exception in the parent context...
try {
handler.handleException(context.getParent(), ex);
fail("Expected RuntimeException");
}
catch (RuntimeException e) {
assertEquals(ex, e);
}
assertEquals(0, context.attributeNames().length);
// One for the retry exhausted flag and one for the counter in the
// delegate exception handler
assertEquals(2, context.getParent().attributeNames().length);
}
/**
* Test method for
* {@link org.springframework.batch.core.step.item.SimpleRetryExceptionHandler#handleException(org.springframework.batch.repeat.RepeatContext, java.lang.Throwable)} .
*/
public void testNoRethrowWhenRetryNotExhausted() throws Throwable {
RetryPolicy retryPolicy = new AlwaysRetryPolicy();
RuntimeException ex = new RuntimeException("foo");
SimpleRetryExceptionHandler handler = getHandlerAfterRetry(retryPolicy, ex, Collections
.<Class<? extends Throwable>> singleton(Error.class));
// Then pretend to handle the exception in the parent context...
handler.handleException(context.getParent(), ex);
assertEquals(0, context.attributeNames().length);
assertEquals(0, context.getParent().attributeNames().length);
}
/**
* Test method for
* {@link org.springframework.batch.core.step.item.SimpleRetryExceptionHandler#handleException(org.springframework.batch.repeat.RepeatContext, java.lang.Throwable)} .
*/
public void testRethrowWhenFatal() throws Throwable {
RetryPolicy retryPolicy = new AlwaysRetryPolicy();
RuntimeException ex = new RuntimeException("foo");
SimpleRetryExceptionHandler handler = getHandlerAfterRetry(retryPolicy, ex, Collections
.<Class<? extends Throwable>> singleton(RuntimeException.class));
// Then pretend to handle the exception in the parent context...
try {
handler.handleException(context.getParent(), ex);
fail("Expected RuntimeException");
}
catch (RuntimeException e) {
assertEquals(ex, e);
}
assertEquals(0, context.attributeNames().length);
// One for the counter in the delegate exception handler
assertEquals(1, context.getParent().attributeNames().length);
}
/**
* @param retryPolicy
* @param ex
* @return
*/
private SimpleRetryExceptionHandler getHandlerAfterRetry(RetryPolicy retryPolicy, RuntimeException ex,
Collection<Class<? extends Throwable>> fatalExceptions) {
// Always rethrow if the retry is exhausted
SimpleRetryExceptionHandler handler = new SimpleRetryExceptionHandler(retryPolicy,
new SimpleLimitExceptionHandler(0), fatalExceptions);
// Simulate a failed retry...
RetryContext retryContext = retryPolicy.open(null);
retryPolicy.registerThrowable(retryContext, ex);
handler.close(retryContext, null, ex);
return handler;
}
}