com.googlecode.ehcache.annotations.integration.TriggersRemoveAfterMethodInvocationTest.java Source code

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Here is the source code for com.googlecode.ehcache.annotations.integration.TriggersRemoveAfterMethodInvocationTest.java

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/**
 * Copyright 2010-2011 Nicholas Blair, Eric Dalquist
 *
 * 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 com.googlecode.ehcache.annotations.integration;

import java.util.concurrent.BrokenBarrierException;

import junit.framework.Assert;
import net.sf.ehcache.Cache;
import net.sf.ehcache.CacheManager;
import net.sf.ehcache.Element;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import com.googlecode.ehcache.annotations.TriggersRemove;
import com.googlecode.ehcache.annotations.When;
import com.googlecode.ehcache.annotations.util.ThreadGroupRunner;

/**
 * Test harness for {@link TriggersRemove} with {@link When#AFTER_METHOD_INVOCATION}.
 * 
 * @author Nicholas Blair
 * @version $Id$
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("/triggersRemoveAfterMethodInvocationTestContext.xml")
public class TriggersRemoveAfterMethodInvocationTest {

    private TriggersRemoveAfterMethodInvocationImpl triggersRemoveTestImpl;
    private CacheManager cacheManager;

    /**
     * @param triggersRemoveTestImpl the triggersRemoveTestImpl to set
     */
    @Autowired
    public void setTriggersRemoveTestImpl(TriggersRemoveAfterMethodInvocationImpl triggersRemoveTestImpl) {
        this.triggersRemoveTestImpl = triggersRemoveTestImpl;
    }

    /**
     * @param cacheManager the cacheManager to set
     */
    @Autowired
    public void setCacheManager(CacheManager cacheManager) {
        this.cacheManager = cacheManager;
    }

    /**
     * 
     */
    @Test
    public void testHarness() {
        Cache cache = cacheManager.getCache("triggersRemoveAfterInvocationTestCache");

        Assert.assertEquals(0, cache.getSize());
        // place an element in the cache so we can tell when removeAll was called
        cache.put(new Element("key", "value"));
        Assert.assertEquals(1, cache.getSize());

        ThreadGroupRunner groupRunner = new ThreadGroupRunner("triggersRemoveAfterMethodInvocationTest", true);
        groupRunner.addTask(new Runnable() {
            public void run() {
                //2 
                triggersRemoveTestImpl.afterMethodInvocation("foo");
                try {
                    // 6
                    triggersRemoveTestImpl.getCyclicBarrier().await();
                } catch (InterruptedException e) {
                    Assert.fail(e.getMessage());
                    e.printStackTrace();
                } catch (BrokenBarrierException e) {
                    Assert.fail(e.getMessage());
                    e.printStackTrace();
                }
            }
        });

        // 1
        groupRunner.start();
        try {
            // 2
            triggersRemoveTestImpl.getCyclicBarrier().await();
        } catch (InterruptedException e) {
            Assert.fail(e.getMessage());
            e.printStackTrace();
        } catch (BrokenBarrierException e) {
            Assert.fail(e.getMessage());
            e.printStackTrace();
        }

        // 4: child thread inside TriggersRemove annotated method
        Assert.assertEquals(1, cache.getSize());
        // 5a
        triggersRemoveTestImpl.getProceedLatch().countDown();
        // TriggersRemove annotated method invocation complete
        try {
            // 6 
            triggersRemoveTestImpl.getCyclicBarrier().await();
        } catch (InterruptedException e) {
            Assert.fail(e.getMessage());
            e.printStackTrace();
        } catch (BrokenBarrierException e) {
            Assert.fail(e.getMessage());
            e.printStackTrace();
        }

        // at this point the removeAll has been called, verify cache is empty
        Assert.assertEquals(0, cache.getSize());
        try {
            groupRunner.join();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

}