org.springframework.retry.policy.RetryContextSerializationTests.java Source code

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Here is the source code for org.springframework.retry.policy.RetryContextSerializationTests.java

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/*
 * Copyright 2012-2015 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.retry.policy;

import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.regex.Pattern;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.junit.runners.Parameterized.Parameters;

import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.classify.SubclassClassifier;
import org.springframework.context.annotation.ClassPathScanningCandidateComponentProvider;
import org.springframework.core.type.filter.AssignableTypeFilter;
import org.springframework.core.type.filter.RegexPatternTypeFilter;
import org.springframework.retry.RetryContext;
import org.springframework.retry.RetryPolicy;
import org.springframework.util.ClassUtils;
import org.springframework.util.SerializationUtils;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

/**
 * @author Dave Syer
 *
 */
@RunWith(Parameterized.class)
public class RetryContextSerializationTests {

    private static Log logger = LogFactory.getLog(RetryContextSerializationTests.class);

    private RetryPolicy policy;

    @Parameters(name = "{index}: {0}")
    public static List<Object[]> policies() {
        List<Object[]> result = new ArrayList<Object[]>();
        ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(true);
        scanner.addIncludeFilter(new AssignableTypeFilter(RetryPolicy.class));
        scanner.addExcludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*Test.*")));
        scanner.addExcludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*Mock.*")));
        Set<BeanDefinition> candidates = scanner.findCandidateComponents("org.springframework.retry.policy");
        for (BeanDefinition beanDefinition : candidates) {
            try {
                result.add(new Object[] { BeanUtils
                        .instantiate(ClassUtils.resolveClassName(beanDefinition.getBeanClassName(), null)) });
            } catch (Exception e) {
                logger.warn("Cannot create instance of " + beanDefinition.getBeanClassName(), e);
            }
        }
        ExceptionClassifierRetryPolicy extra = new ExceptionClassifierRetryPolicy();
        extra.setExceptionClassifier(new SubclassClassifier<Throwable, RetryPolicy>(new AlwaysRetryPolicy()));
        result.add(new Object[] { extra });
        return result;
    }

    public RetryContextSerializationTests(RetryPolicy policy) {
        this.policy = policy;
    }

    @Test
    public void testSerializationCycleForContext() {
        RetryContext context = policy.open(null);
        assertEquals(0, context.getRetryCount());
        policy.registerThrowable(context, new RuntimeException());
        assertEquals(1, context.getRetryCount());
        assertEquals(1, ((RetryContext) SerializationUtils.deserialize(SerializationUtils.serialize(context)))
                .getRetryCount());
    }

    @Test
    public void testSerializationCycleForPolicy() {
        assertTrue(SerializationUtils.deserialize(SerializationUtils.serialize(policy)) instanceof RetryPolicy);
    }

}