/*
* Copyright 2015 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
*
* 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.jbpm.process.workitem.jpa;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import javax.persistence.TypedQuery;
import javax.transaction.UserTransaction;
import org.drools.core.process.instance.impl.WorkItemImpl;
import org.h2.tools.DeleteDbFiles;
import org.h2.tools.Server;
import org.junit.BeforeClass;
import org.junit.Test;
import org.kie.api.io.ResourceType;
import org.kie.api.runtime.KieSession;
import org.kie.api.runtime.manager.RuntimeEngine;
import org.kie.api.runtime.manager.RuntimeEnvironment;
import org.kie.api.runtime.manager.RuntimeEnvironmentBuilder;
import org.kie.api.runtime.manager.RuntimeManager;
import org.kie.api.runtime.manager.RuntimeManagerFactory;
import org.kie.api.runtime.process.WorkItem;
import org.kie.api.runtime.process.WorkItemHandler;
import org.kie.api.runtime.process.WorkItemManager;
import org.kie.api.task.TaskService;
import org.kie.internal.io.ResourceFactory;
import org.kie.internal.runtime.manager.TaskServiceFactory;
import org.kie.internal.runtime.manager.context.EmptyContext;
import bitronix.tm.resource.jdbc.PoolingDataSource;
public class JPAWorkItemHandlerTest {
private static final String P_UNIT = "org.jbpm.test.jpaWIH";
private static EntityManagerFactory emf;
private static WorkItemHandler handler;
private static TestH2Server h2Server;
private static UserTransaction ut;
@BeforeClass
public static void configure() throws InterruptedException, NamingException {
setupPoolingDataSource();
ClassLoader classLoader = JPAWorkItemHandler.class.getClassLoader();
handler = new JPAWorkItemHandler(P_UNIT, classLoader);
emf = Persistence.createEntityManagerFactory(P_UNIT);
ut = getUserTransaction();
}
@Test
public void createOnProcessTest() throws Exception {
String DESC = "Table";
Product p = new Product(DESC, 10f);
startJPAWIHProcess(JPAWorkItemHandler.CREATE_ACTION, p);
UserTransaction ut = getUserTransaction();
ut.begin();
EntityManager em = emf.createEntityManager();
TypedQuery<Product> products = em.createQuery("select p from Product p where p.description = :desc", Product.class);
products.setParameter("desc", DESC);
List<Product> resultList = products.getResultList();
Product result = resultList.iterator().next();
assertEquals(DESC, result.getDescription());
em.remove(result);
em.flush();
em.close();
ut.commit();
}
@Test
public void removeOnProcessTest() throws Exception {
Product p = new Product("A Product", 10f);
ut.begin();
EntityManager em = emf.createEntityManager();
em.persist(p);
long id = p.getId();
em.close();
ut.commit();
startJPAWIHProcess(JPAWorkItemHandler.DELETE_ACTION, p);
ut.begin();
em = emf.createEntityManager();
p = em.find(Product.class, id);
assertNull(p);
ut.commit();
}
@Test
public void updateOnProcessTest() throws Exception {
String DESC = "Table";
String NEW_DESC = "Red Table";
Product p = new Product(DESC, 10f);
ut.begin();
EntityManager em = emf.createEntityManager();
em.persist(p);
long id = p.getId();
em.close();
ut.commit();
p.setDescription(NEW_DESC);
startJPAWIHProcess(JPAWorkItemHandler.UPDATE_ACTION, p);
ut.begin();
em = emf.createEntityManager();
p = em.find(Product.class, id);
assertEquals(p.getDescription(), NEW_DESC);
ut.commit();
removeProduct(p);
}
@Test
public void getActionTest() throws Exception {
Product newProd = create(new Product("some product", 0.1f));
String id = String.valueOf(newProd.getId());
Product product = getProduct(id);
assertEquals(product.getDescription(), newProd.getDescription());
removeProduct(product);
}
@Test
public void queryActionTest() throws Exception {
Product p1 = create(new Product("some prod", 2f));
Product p2 = create(new Product("other prod", 3f));
List<Product> products = getAllProducts();
assertEquals(2, products.size());
removeProduct(p1);
removeProduct(p2);
}
@Test
public void queryWithParameterActionTest() throws Exception {
String DESC = "Cheese";
Product p1 = new Product("Bread", 2f);
Product p2 = new Product("Milk", 3f);
Product p3 = new Product(DESC, 5f);
create(p1);
create(p2);
create(p3);
WorkItemImpl workItem = new WorkItemImpl();
workItem.setParameter(JPAWorkItemHandler.P_ACTION,
JPAWorkItemHandler.QUERY_ACTION);
Map<String, Object> params = new HashMap<>();
params.put("desc", DESC);
workItem.setParameter(JPAWorkItemHandler.P_QUERY,
"SELECT p FROM Product p where p.description = :desc");
workItem.setParameter(JPAWorkItemHandler.P_QUERY_PARAMS, params);
UserTransaction ut = getUserTransaction();
ut.begin();
handler.executeWorkItem(workItem, new TestWorkItemManager(workItem));
ut.commit();
@SuppressWarnings("unchecked")
List<Product> products = (List<Product>) workItem
.getResult(JPAWorkItemHandler.P_QUERY_RESULTS);
assertEquals(1, products.size());
products = getAllProducts();
assertEquals(3, products.size());
for (Product product : products) {
removeProduct(product);
}
products = getAllProducts();
assertEquals(0, products.size());
}
private void removeProduct(Product prod) throws Exception {
ut.begin();
EntityManager em = emf.createEntityManager();
prod = em.find(Product.class, prod.getId());
em.remove(prod);
em.close();
ut.commit();
}
private Product create(Product newProd) throws Exception {
ut.begin();
EntityManager em = emf.createEntityManager();
em.persist(newProd);
em.close();
ut.commit();
return newProd;
}
private List<Product> getAllProducts() throws Exception {
WorkItemImpl workItem = new WorkItemImpl();
workItem.setParameter(JPAWorkItemHandler.P_ACTION,
JPAWorkItemHandler.QUERY_ACTION);
workItem.setParameter(JPAWorkItemHandler.P_QUERY,
"SELECT p FROM Product p");
UserTransaction ut = getUserTransaction();
ut.begin();
handler.executeWorkItem(workItem, new TestWorkItemManager(workItem));
ut.commit();
@SuppressWarnings("unchecked")
List<Product> products = (List<Product>) workItem
.getResult(JPAWorkItemHandler.P_QUERY_RESULTS);
return products;
}
private Product getProduct(String id) throws Exception {
WorkItemImpl workItem = new WorkItemImpl();
workItem.setParameter(JPAWorkItemHandler.P_ACTION,
JPAWorkItemHandler.GET_ACTION);
workItem.setParameter(JPAWorkItemHandler.P_TYPE,
"org.jbpm.process.workitem.jpa.Product");
workItem.setParameter(JPAWorkItemHandler.P_ID, id);
UserTransaction ut = getUserTransaction();
ut.begin();
handler.executeWorkItem(workItem, new TestWorkItemManager(workItem));
ut.commit();
Product product = (Product) workItem
.getResult(JPAWorkItemHandler.P_RESULT);
return product;
}
private void startJPAWIHProcess(String action, Product prod) throws Exception {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("org.jbpm.persistence.jpa");
RuntimeEnvironment env =
RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder()
.entityManagerFactory(emf)
.addEnvironmentEntry("org.kie.internal.runtime.manager.TaskServiceFactory", new TaskServiceFactory(){
@Override
public TaskService newTaskService() {
return null;
}
@Override
public void close() {
}
})
.addAsset(ResourceFactory.newClassPathResource("JPAWIH.bpmn2"),ResourceType.BPMN2)
.get();
RuntimeManager manager = RuntimeManagerFactory.Factory.get().newSingletonRuntimeManager(env);
RuntimeEngine engine = manager.getRuntimeEngine(EmptyContext.get());
KieSession kSession = engine.getKieSession();
JPAWorkItemHandler jpaWih = new JPAWorkItemHandler(P_UNIT, this.getClass().getClassLoader());
kSession.getWorkItemManager().registerWorkItemHandler("JPAWIH", jpaWih);
HashMap<String, Object> params = new HashMap<>();
params.put("action", action);
params.put("obj", prod);
params.put("id", prod.getId());
kSession.startProcess("org.jbpm.JPA_WIH", params);
manager.disposeRuntimeEngine(engine);
manager.close();
}
private static UserTransaction getUserTransaction() throws NamingException {
return (UserTransaction) InitialContext.doLookup("java:comp/UserTransaction");
}
private class TestWorkItemManager implements WorkItemManager {
private WorkItem workItem;
TestWorkItemManager(WorkItem workItem) {
this.workItem = workItem;
}
public void completeWorkItem(long id, Map<String, Object> results) {
((WorkItemImpl) workItem).setResults(results);
}
public void abortWorkItem(long id) {
}
public void registerWorkItemHandler(String workItemName,
WorkItemHandler handler) {
}
}
public static PoolingDataSource setupPoolingDataSource() {
h2Server = new TestH2Server();
h2Server.start();
PoolingDataSource pds = new PoolingDataSource();
pds.setMaxPoolSize(10);
pds.setMinPoolSize(10);
pds.setUniqueName("jpaWIH");
pds.setClassName("bitronix.tm.resource.jdbc.lrc.LrcXADataSource");
pds.setAllowLocalTransactions(true);
pds.getDriverProperties().put("user", "sa");
pds.getDriverProperties().put("url", "jdbc:h2:mem:jpa-wih;MVCC=true");
pds.getDriverProperties().put("driverClassName", "org.h2.Driver");
pds.init();
return pds;
}
private static class TestH2Server {
private Server realH2Server;
public void start() {
if (realH2Server == null || !realH2Server.isRunning(false)) {
try {
realH2Server = Server.createTcpServer(new String[0]);
realH2Server.start();
System.out.println("Started H2 Server...");
} catch (SQLException e) {
throw new RuntimeException("can't start h2 server db", e);
}
}
}
@Override
protected void finalize() throws Throwable {
if (realH2Server != null) {
System.out.println("Stopping H2 Server...");
realH2Server.stop();
}
DeleteDbFiles.execute("", "target/jpa-wih", true);
super.finalize();
}
}
}