/**
* 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.processor.jpa;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.examples.SendEmail;
import org.apache.camel.spring.SpringRouteBuilder;
import org.junit.Test;
import org.springframework.context.expression.BeanFactoryResolver;
import org.springframework.expression.Expression;
import org.springframework.expression.spel.standard.SpelExpressionParser;
import org.springframework.expression.spel.support.StandardEvaluationContext;
import org.springframework.orm.jpa.LocalEntityManagerFactoryBean;
import static org.hamcrest.CoreMatchers.equalTo;
/**
* @version
*/
public class JpaRouteSharedEntityManagerTest extends AbstractJpaTest {
protected static final String SELECT_ALL_STRING = "select x from " + SendEmail.class.getName() + " x";
private CountDownLatch latch = new CountDownLatch(1);
@Test
public void testRouteJpaShared() throws Exception {
MockEndpoint mock = getMockEndpoint("mock:result");
mock.expectedMessageCount(1);
int countStart = getBrokerCount();
assertThat("brokerCount", countStart, equalTo(1));
template.sendBody("direct:startShared", new SendEmail("one@somewhere.org"));
// start route
context.startRoute("jpaShared");
// not the cleanest way to check the number of open connections
int countEnd = getBrokerCount();
assertThat("brokerCount", countEnd, equalTo(1));
latch.countDown();
assertMockEndpointsSatisfied();
}
private int getBrokerCount() {
LocalEntityManagerFactoryBean entityManagerFactory = applicationContext.getBean("&entityManagerFactory", LocalEntityManagerFactoryBean.class);
//uses Spring EL so we don't need to reference the classes
StandardEvaluationContext context = new StandardEvaluationContext(entityManagerFactory);
context.setBeanResolver(new BeanFactoryResolver(applicationContext));
SpelExpressionParser parser = new SpelExpressionParser();
Expression expression = parser.parseExpression("nativeEntityManagerFactory.brokerFactory.openBrokers");
List<?> brokers = expression.getValue(context, List.class);
return brokers.size();
}
@Test
public void testRouteJpaNotShared() throws Exception {
MockEndpoint mock = getMockEndpoint("mock:result");
mock.expectedMessageCount(1);
template.sendBody("direct:startNotshared", new SendEmail("one@somewhere.org"));
int countStart = getBrokerCount();
assertThat("brokerCount", countStart, equalTo(1));
// start route
context.startRoute("jpaOwn");
// not the cleanest way to check the number of open connections
int countEnd = getBrokerCount();
assertThat("brokerCount", countEnd, equalTo(2));
latch.countDown();
assertMockEndpointsSatisfied();
}
@Override
protected RouteBuilder createRouteBuilder() {
return new SpringRouteBuilder() {
public void configure() {
from("direct:startNotshared").to("jpa://" + SendEmail.class.getName() + "?");
from("direct:startShared").to("jpa://" + SendEmail.class.getName() + "?sharedEntityManager=true&joinTransaction=false");
from("jpa://" + SendEmail.class.getName() + "?sharedEntityManager=true&joinTransaction=false").routeId("jpaShared").autoStartup(false).process(new LatchProcessor()).to("mock:result");
from("jpa://" + SendEmail.class.getName() + "?sharedEntityManager=false").routeId("jpaOwn").autoStartup(false).process(new LatchProcessor()).to("mock:result");
}
};
}
@Override
protected String routeXml() {
return "org/apache/camel/processor/jpa/springJpaRouteTest.xml";
}
@Override
protected String selectAllString() {
return SELECT_ALL_STRING;
}
private class LatchProcessor implements Processor {
@Override
public void process(Exchange exchange) throws Exception {
latch.await(2, TimeUnit.SECONDS);
}
}
}