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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.openjpa.persistence.compat;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import org.apache.openjpa.persistence.EntityManagerImpl;
import org.apache.openjpa.persistence.OpenJPAEntityManagerFactorySPI;
import org.apache.openjpa.persistence.OpenJPAPersistence;
import org.apache.openjpa.persistence.relations.TblChild;
import org.apache.openjpa.persistence.relations.TblGrandChild;
import org.apache.openjpa.persistence.relations.TblParent;
import org.apache.openjpa.persistence.simple.Person;
import org.apache.openjpa.persistence.test.AllowFailure;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
/**
* <b>TestQuerySQLCache</b> is used to verify multiple permutations of openjpa.jdbc.QuerySQLCache settings that were
* valid in JPA 1.2 but may not be valid in JPA 2.0
*/
public class TestQuerySQLCache extends SingleEMFTestCase {
final int nThreads = 5;
final int nPeople = 100;
final int nIterations = 10;
@Override
public void setUp() {
// need this to cleanup existing tables as some entity names are reused
setUp(DROP_TABLES, Person.class, TblChild.class, TblGrandChild.class, TblParent.class);
}
/*
* Verify an exception is thrown if a bad cache implementation class is specified
*/
public void testBadCustomCacheSetting() {
Map props = new HashMap(System.getProperties());
props.put("openjpa.MetaDataFactory", "jpa(Types=" + Person.class.getName() + ")");
props.put("openjpa.jdbc.QuerySQLCache",
"org.apache.openjpa.persistence.compatible.TestQuerySQLCache.BadCacheMap");
try {
OpenJPAEntityManagerFactorySPI emf = (OpenJPAEntityManagerFactorySPI)OpenJPAPersistence.
cast(Persistence.createEntityManagerFactory("test", props));
//
// EMF creation must throw an exception because the cache implementation class will not be found
//
assertFalse(false);
}
catch (Exception e) {
assertTrue(true);
}
}
/*
* Verify multi-threaded multi-entity manager finder works with the QuerySQLCache set to "all"
*/
@AllowFailure(message="OPENJPA-1179 2.0 doesn't allow 'all' as in previous releases")
public void testMultiEMCachingAll() {
Map props = new HashMap(System.getProperties());
props.put("openjpa.MetaDataFactory", "jpa(Types=" + Person.class.getName() + ")");
props.put("openjpa.jdbc.QuerySQLCache", "all");
runMultiEMCaching(props);
}
/*
* Verify multi-threaded multi-entity manager finder works with the QuerySQLCache set to "true"
*/
public void testMultiEMCachingTrue() {
Map props = new HashMap(System.getProperties());
props.put("openjpa.MetaDataFactory", "jpa(Types=" + Person.class.getName() + ")");
props.put("openjpa.jdbc.QuerySQLCache", "true");
runMultiEMCaching(props);
}
/*
* Verify QuerySQLCacheValue setting "true" uses the expected cache implementation and is caching
*/
@AllowFailure(message="Fails after first run with duplicate key value in a unique PK constraint or index")
public void testEagerFetch() {
Map props = new HashMap(System.getProperties());
props.put("openjpa.MetaDataFactory", "jpa(Types=" + TblChild.class.getName() + ";"
+ TblGrandChild.class.getName() + ";"
+ TblParent.class.getName() + ")");
props.put("openjpa.jdbc.QuerySQLCache", "true");
OpenJPAEntityManagerFactorySPI emf = (OpenJPAEntityManagerFactorySPI) OpenJPAPersistence.
cast(Persistence.createEntityManagerFactory("test", props));
EntityManagerImpl em = (EntityManagerImpl)emf.createEntityManager();
em.getTransaction().begin();
for (int i = 1; i < 3; i++) {
TblParent p = new TblParent();
p.setParentId(i);
TblChild c = new TblChild();
c.setChildId(i);
c.setTblParent(p);
p.addTblChild(c);
em.persist(p);
em.persist(c);
TblGrandChild gc = new TblGrandChild();
gc.setGrandChildId(i);
gc.setTblChild(c);
c.addTblGrandChild(gc);
em.persist(p);
em.persist(c);
em.persist(gc);
}
em.flush();
em.getTransaction().commit();
em.clear();
for (int i = 1; i < 3; i++) {
TblParent p = em.find(TblParent.class, i);
int pid = p.getParentId();
assertEquals(pid, i);
Collection<TblChild> children = p.getTblChildren();
boolean hasChild = false;
for (TblChild c : children) {
hasChild = true;
Collection<TblGrandChild> gchildren = c.getTblGrandChildren();
int cid = c.getChildId();
assertEquals(cid, i);
boolean hasGrandChild = false;
for (TblGrandChild gc : gchildren) {
hasGrandChild = true;
int gcId = gc.getGrandChildId();
assertEquals(gcId, i);
}
assertTrue(hasGrandChild);
}
assertTrue(hasChild);
}
em.close();
emf.close();
}
private void runMultiEMCaching(Map props) {
EntityManagerFactory emfac = Persistence.createEntityManagerFactory("test", props);
EntityManager em = emfac.createEntityManager();
//
// Create some entities
//
em.getTransaction().begin();
for (int i = 0; i < nPeople; i++) {
Person p = new Person();
p.setId(i);
em.persist(p);
}
em.flush();
em.getTransaction().commit();
em.close();
Thread[] newThreads = new Thread[nThreads];
FindPeople[] customer = new FindPeople[nThreads];
for (int i=0; i < nThreads; i++) {
customer[i] = new FindPeople(emfac, 0, nPeople, nIterations, i);
newThreads[i] = new Thread(customer[i]);
newThreads[i].start();
}
//
// Wait for the worker threads to complete
//
for (int i = 0; i < nThreads; i++) {
try {
newThreads[i].join();
}
catch (InterruptedException e) {
this.fail("Caught Interrupted Exception: " + e);
}
}
//
// Run through the state of all runnables to assert if any of them failed.
//
for (int i = 0; i < nThreads; i++) {
assertFalse(customer[i].hadFailures());
}
//
// Clean up the entities used in this test
//
em = emfac.createEntityManager();
em.getTransaction().begin();
for (int i = 0; i < nPeople; i++) {
Person p = em.find(Person.class, i);
em.remove(p);
}
em.flush();
em.getTransaction().commit();
em.close();
}
/*
* Simple runnable to test finder in a tight loop. Multiple instances of this runnable will run simultaneously
*/
private class FindPeople implements Runnable {
private int startId;
private int endId;
private int thread;
private int iterations;
private EntityManagerFactory emf;
private boolean failures = false;
public FindPeople(EntityManagerFactory emf, int startId, int endId, int iterations, int thread) {
super();
this.startId = startId;
this.endId = endId;
this.thread = thread;
this.iterations = iterations;
this.emf = emf;
}
public boolean hadFailures() {
return failures;
}
public void run() {
try {
EntityManager em = emf.createEntityManager();
for (int j = 0; j < iterations; j++) {
for (int i = startId; i < endId; i++) {
Person p1 = em.find(Person.class, i);
if (p1.getId() != i) {
System.out.println("Finder failed: " + i);
failures = true;
break;
}
}
em.clear();
}
em.close();
}
catch (Exception e) {
failures = true;
System.out.println("Thread " + thread + " exception :" + e );
}
}
}
}