/**
* 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 junit.framework.TestCase;
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.SendEmail;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.orm.jpa.JpaCallback;
import org.springframework.orm.jpa.JpaTemplate;
import static org.apache.camel.util.ServiceHelper.startServices;
import static org.apache.camel.util.ServiceHelper.stopServices;
/**
* @version $Revision: 664245 $
*/
public class JpaTest extends TestCase {
private static final transient Log LOG = LogFactory.getLog(JpaTest.class);
protected CamelContext camelContext = new DefaultCamelContext();
protected ProducerTemplate template = camelContext.createProducerTemplate();
protected JpaEndpoint endpoint;
protected TransactionStrategy transactionStrategy;
protected JpaTemplate jpaTemplate;
protected Consumer<Exchange> consumer;
protected Exchange receivedExchange;
protected CountDownLatch latch = new CountDownLatch(1);
protected String entityName = SendEmail.class.getName();
protected String queryText = "select o from " + entityName + " o";
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();
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 SendEmail("foo@bar.com"));
}
});
// now lets assert that there is a result
results = jpaTemplate.find(queryText);
assertEquals("Should have results: " + results, 1, results.size());
SendEmail mail = (SendEmail) 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);
assertNotNull(receivedExchange);
SendEmail result = receivedExchange.getIn().getBody(SendEmail.class);
assertNotNull("Received a POJO", result);
assertEquals("address property", "foo@bar.com", result.getAddress());
}
@Override
protected void setUp() throws Exception {
super.setUp();
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://" + SendEmail.class.getName();
}
@Override
protected void tearDown() throws Exception {
stopServices(consumer, template, camelContext);
super.tearDown();
}
}