org.springframework.retry.backoff.BackOffPolicySerializationTests.java Source code

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Here is the source code for org.springframework.retry.backoff.BackOffPolicySerializationTests.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.backoff;

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.context.annotation.ClassPathScanningCandidateComponentProvider;
import org.springframework.core.type.filter.AssignableTypeFilter;
import org.springframework.core.type.filter.RegexPatternTypeFilter;
import org.springframework.retry.context.RetryContextSupport;
import org.springframework.util.ClassUtils;
import org.springframework.util.SerializationUtils;

import static org.junit.Assert.assertTrue;

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

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

    private BackOffPolicy 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(BackOffPolicy.class));
        scanner.addExcludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*Test.*")));
        scanner.addExcludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*Mock.*")));
        scanner.addExcludeFilter(new RegexPatternTypeFilter(Pattern.compile(".*Configuration.*")));
        Set<BeanDefinition> candidates = scanner.findCandidateComponents("org.springframework.retry");
        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());
            }
        }
        return result;
    }

    public BackOffPolicySerializationTests(BackOffPolicy policy) {
        this.policy = policy;
    }

    @Test
    public void testSerializationCycleForContext() {
        BackOffContext context = policy.start(new RetryContextSupport(null));
        if (context != null) {
            assertTrue(SerializationUtils
                    .deserialize(SerializationUtils.serialize(context)) instanceof BackOffContext);
        }
    }

}