| /** |
| * 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.camel.component.jpa; |
| |
| import java.util.List; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| import javax.persistence.EntityManager; |
| import javax.persistence.PersistenceException; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.Consumer; |
| import org.apache.camel.Endpoint; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.Processor; |
| import org.apache.camel.ProducerTemplate; |
| import org.apache.camel.examples.MultiSteps; |
| import org.apache.camel.impl.DefaultCamelContext; |
| import org.apache.camel.util.ServiceHelper; |
| import org.junit.After; |
| import org.junit.Assert; |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| import org.springframework.orm.jpa.JpaCallback; |
| import org.springframework.orm.jpa.JpaTemplate; |
| |
| /** |
| * @version |
| */ |
| public class JpaWithNamedQueryTest extends Assert { |
| |
| protected static final transient Logger LOG = LoggerFactory.getLogger(JpaWithNamedQueryTest.class); |
| |
| protected CamelContext camelContext = new DefaultCamelContext(); |
| protected ProducerTemplate template; |
| protected JpaEndpoint endpoint; |
| protected TransactionStrategy transactionStrategy; |
| protected JpaTemplate jpaTemplate; |
| protected Consumer consumer; |
| protected Exchange receivedExchange; |
| protected CountDownLatch latch = new CountDownLatch(1); |
| protected String entityName = MultiSteps.class.getName(); |
| protected String queryText = "select o from " + entityName + " o where o.step = 1"; |
| |
| @Test |
| public void testProducerInsertsIntoDatabaseThenConsumerFiresMessageExchange() throws Exception { |
| transactionStrategy.execute(new JpaCallback() { |
| public Object doInJpa(EntityManager entityManager) throws PersistenceException { |
| // lets delete any exiting records before the test |
| entityManager.createQuery("delete from " + entityName).executeUpdate(); |
| |
| // now lets create a dummy entry |
| MultiSteps dummy = new MultiSteps("cheese"); |
| dummy.setStep(4); |
| entityManager.persist(dummy); |
| return null; |
| } |
| }); |
| |
| List results = jpaTemplate.find(queryText); |
| assertEquals("Should have no results: " + results, 0, results.size()); |
| |
| // lets produce some objects |
| template.send(endpoint, new Processor() { |
| public void process(Exchange exchange) { |
| exchange.getIn().setBody(new MultiSteps("foo@bar.com")); |
| } |
| }); |
| |
| // now lets assert that there is a result |
| results = jpaTemplate.find(queryText); |
| assertEquals("Should have results: " + results, 1, results.size()); |
| MultiSteps mail = (MultiSteps)results.get(0); |
| assertEquals("address property", "foo@bar.com", mail.getAddress()); |
| |
| // now lets create a consumer to consume it |
| consumer = endpoint.createConsumer(new Processor() { |
| public void process(Exchange e) { |
| LOG.info("Received exchange: " + e.getIn()); |
| receivedExchange = e; |
| latch.countDown(); |
| } |
| }); |
| consumer.start(); |
| |
| boolean received = latch.await(50, TimeUnit.SECONDS); |
| assertTrue("Did not receive the message!", received); |
| |
| assertReceivedResult(receivedExchange); |
| |
| // lets now test that the database is updated |
| // we need to sleep as we will be invoked from inside the transaction! |
| Thread.sleep(1000); |
| |
| transactionStrategy.execute(new JpaCallback() { |
| @SuppressWarnings("unchecked") |
| public Object doInJpa(EntityManager entityManager) throws PersistenceException { |
| |
| // now lets assert that there are still 2 entities left |
| List<MultiSteps> rows = entityManager.createQuery("select x from MultiSteps x").getResultList(); |
| assertEquals("Number of entities: " + rows, 2, rows.size()); |
| |
| int counter = 1; |
| for (MultiSteps row : rows) { |
| LOG.info("entity: " + counter++ + " = " + row); |
| |
| if (row.getAddress().equals("foo@bar.com")) { |
| LOG.info("Found updated row: " + row); |
| |
| assertEquals("Updated row step for: " + row, getUpdatedStepValue(), row.getStep()); |
| } else { |
| // dummy row |
| assertEquals("dummy row step for: " + row, 4, row.getStep()); |
| } |
| } |
| return null; |
| } |
| }); |
| |
| JpaConsumer jpaConsumer = (JpaConsumer) consumer; |
| assertURIQueryOption(jpaConsumer); |
| } |
| |
| protected void assertReceivedResult(Exchange exchange) { |
| assertNotNull(exchange); |
| MultiSteps result = exchange.getIn().getBody(MultiSteps.class); |
| assertNotNull("Received a POJO", result); |
| assertEquals("address property", "foo@bar.com", result.getAddress()); |
| } |
| |
| protected int getUpdatedStepValue() { |
| return 2; |
| } |
| |
| protected void assertURIQueryOption(JpaConsumer jpaConsumer) { |
| assertEquals("step1", jpaConsumer.getNamedQuery()); |
| } |
| |
| @Before |
| public void setUp() throws Exception { |
| template = camelContext.createProducerTemplate(); |
| ServiceHelper.startServices(template, camelContext); |
| |
| Endpoint value = camelContext.getEndpoint(getEndpointUri()); |
| assertNotNull("Could not find endpoint!", value); |
| assertTrue("Should be a JPA endpoint but was: " + value, value instanceof JpaEndpoint); |
| endpoint = (JpaEndpoint)value; |
| |
| transactionStrategy = endpoint.createTransactionStrategy(); |
| jpaTemplate = endpoint.getTemplate(); |
| } |
| |
| protected String getEndpointUri() { |
| return "jpa://" + MultiSteps.class.getName() + "?consumer.namedQuery=step1"; |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| ServiceHelper.stopServices(consumer, template, camelContext); |
| } |
| } |