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/*
* Copyright 2002-2013 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.aop.target;
import org.junit.Before;
import org.junit.Test;
import org.springframework.beans.factory.support.DefaultListableBeanFactory;
import org.springframework.beans.factory.xml.XmlBeanDefinitionReader;
import org.springframework.core.io.Resource;
import org.springframework.tests.sample.beans.ITestBean;
import org.springframework.tests.sample.beans.SideEffectBean;
import static org.junit.Assert.*;
import static org.springframework.tests.TestResourceUtils.*;
/**
* @author Rod Johnson
* @author Chris Beams
*/
public class ThreadLocalTargetSourceTests {
private static final Resource CONTEXT = qualifiedResource(ThreadLocalTargetSourceTests.class, "context.xml");
/** Initial count value set in bean factory XML */
private static final int INITIAL_COUNT = 10;
private DefaultListableBeanFactory beanFactory;
@Before
public void setUp() throws Exception {
this.beanFactory = new DefaultListableBeanFactory();
new XmlBeanDefinitionReader(this.beanFactory).loadBeanDefinitions(CONTEXT);
}
/**
* We must simulate container shutdown, which should clear threads.
*/
protected void tearDown() {
this.beanFactory.destroySingletons();
}
/**
* Check we can use two different ThreadLocalTargetSources
* managing objects of different types without them interfering
* with one another.
*/
@Test
public void testUseDifferentManagedInstancesInSameThread() {
SideEffectBean apartment = (SideEffectBean) beanFactory.getBean("apartment");
assertEquals(INITIAL_COUNT, apartment.getCount() );
apartment.doWork();
assertEquals(INITIAL_COUNT + 1, apartment.getCount() );
ITestBean test = (ITestBean) beanFactory.getBean("threadLocal2");
assertEquals("Rod", test.getName());
assertEquals("Kerry", test.getSpouse().getName());
}
@Test
public void testReuseInSameThread() {
SideEffectBean apartment = (SideEffectBean) beanFactory.getBean("apartment");
assertEquals(INITIAL_COUNT, apartment.getCount() );
apartment.doWork();
assertEquals(INITIAL_COUNT + 1, apartment.getCount() );
apartment = (SideEffectBean) beanFactory.getBean("apartment");
assertEquals(INITIAL_COUNT + 1, apartment.getCount() );
}
/**
* Relies on introduction.
*/
@Test
public void testCanGetStatsViaMixin() {
ThreadLocalTargetSourceStats stats = (ThreadLocalTargetSourceStats) beanFactory.getBean("apartment");
// +1 because creating target for stats call counts
assertEquals(1, stats.getInvocationCount());
SideEffectBean apartment = (SideEffectBean) beanFactory.getBean("apartment");
apartment.doWork();
// +1 again
assertEquals(3, stats.getInvocationCount());
// + 1 for states call!
assertEquals(3, stats.getHitCount());
apartment.doWork();
assertEquals(6, stats.getInvocationCount());
assertEquals(6, stats.getHitCount());
// Only one thread so only one object can have been bound
assertEquals(1, stats.getObjectCount());
}
@Test
public void testNewThreadHasOwnInstance() throws InterruptedException {
SideEffectBean apartment = (SideEffectBean) beanFactory.getBean("apartment");
assertEquals(INITIAL_COUNT, apartment.getCount() );
apartment.doWork();
apartment.doWork();
apartment.doWork();
assertEquals(INITIAL_COUNT + 3, apartment.getCount() );
class Runner implements Runnable {
public SideEffectBean mine;
@Override
public void run() {
this.mine = (SideEffectBean) beanFactory.getBean("apartment");
assertEquals(INITIAL_COUNT, mine.getCount() );
mine.doWork();
assertEquals(INITIAL_COUNT + 1, mine.getCount() );
}
}
Runner r = new Runner();
Thread t = new Thread(r);
t.start();
t.join();
assertNotNull(r);
// Check it didn't affect the other thread's copy
assertEquals(INITIAL_COUNT + 3, apartment.getCount() );
// When we use other thread's copy in this thread
// it should behave like ours
assertEquals(INITIAL_COUNT + 3, r.mine.getCount() );
// Bound to two threads
assertEquals(2, ((ThreadLocalTargetSourceStats) apartment).getObjectCount());
}
/**
* Test for SPR-1442. Destroyed target should re-associated with thread and not throw NPE
*/
@Test
public void testReuseDestroyedTarget() {
ThreadLocalTargetSource source = (ThreadLocalTargetSource)this.beanFactory.getBean("threadLocalTs");
// try first time
source.getTarget();
source.destroy();
// try second time
try {
source.getTarget();
}
catch (NullPointerException ex) {
fail("Should not throw NPE");
}
}
}
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