| /** |
| * 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.Map; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.ConcurrentHashMap; |
| import java.util.concurrent.ExecutorService; |
| import java.util.concurrent.Executors; |
| import java.util.concurrent.Future; |
| |
| import org.apache.camel.CamelContext; |
| import org.apache.camel.builder.RouteBuilder; |
| import org.apache.camel.examples.SendEmail; |
| import org.apache.camel.spring.SpringCamelContext; |
| import org.apache.camel.spring.SpringRouteBuilder; |
| import org.apache.camel.test.junit4.CamelTestSupport; |
| import org.junit.Test; |
| import org.springframework.context.ApplicationContext; |
| import org.springframework.context.support.ClassPathXmlApplicationContext; |
| import org.springframework.orm.jpa.JpaTemplate; |
| import org.springframework.orm.jpa.JpaTransactionManager; |
| import org.springframework.transaction.TransactionDefinition; |
| import org.springframework.transaction.TransactionStatus; |
| import org.springframework.transaction.support.TransactionCallback; |
| import org.springframework.transaction.support.TransactionTemplate; |
| |
| /** |
| * @version |
| */ |
| public class JpaProducerConcurrentTest extends CamelTestSupport { |
| protected static final String SELECT_ALL_STRING = "select x from " + SendEmail.class.getName() + " x"; |
| |
| protected ApplicationContext applicationContext; |
| protected JpaTemplate jpaTemplate; |
| |
| @Test |
| public void testNoConcurrentProducers() throws Exception { |
| doSendMessages(1, 1); |
| } |
| |
| @Test |
| public void testConcurrentProducers() throws Exception { |
| doSendMessages(10, 5); |
| } |
| |
| private void doSendMessages(int files, int poolSize) throws Exception { |
| getMockEndpoint("mock:result").expectedMessageCount(files); |
| getMockEndpoint("mock:result").assertNoDuplicates(body()); |
| |
| ExecutorService executor = Executors.newFixedThreadPool(poolSize); |
| Map<Integer, Future> responses = new ConcurrentHashMap<Integer, Future>(); |
| for (int i = 0; i < files; i++) { |
| final int index = i; |
| Future out = executor.submit(new Callable<Object>() { |
| public Object call() throws Exception { |
| template.sendBody("direct:start", new SendEmail("user" + index + "@somewhere.org")); |
| return null; |
| } |
| }); |
| responses.put(index, out); |
| } |
| |
| assertMockEndpointsSatisfied(); |
| |
| assertEquals(files, responses.size()); |
| |
| // get them so they are complete |
| for (Future future : responses.values()) { |
| future.get(); |
| } |
| |
| // assert in the database |
| assertEntityInDB(files); |
| executor.shutdownNow(); |
| } |
| |
| @Override |
| protected CamelContext createCamelContext() throws Exception { |
| applicationContext = new ClassPathXmlApplicationContext("org/apache/camel/processor/jpa/springJpaRouteTest.xml"); |
| cleanupRepository(); |
| return SpringCamelContext.springCamelContext(applicationContext); |
| } |
| |
| @Override |
| protected RouteBuilder createRouteBuilder() { |
| return new SpringRouteBuilder() { |
| public void configure() { |
| from("direct:start").to("jpa://" + SendEmail.class.getName()).to("mock:result"); |
| } |
| }; |
| } |
| |
| private void assertEntityInDB(int number) throws Exception { |
| jpaTemplate = (JpaTemplate)applicationContext.getBean("jpaTemplate", JpaTemplate.class); |
| |
| List list = jpaTemplate.find(SELECT_ALL_STRING); |
| assertEquals(number, list.size()); |
| |
| assertIsInstanceOf(SendEmail.class, list.get(0)); |
| } |
| |
| @SuppressWarnings("unchecked") |
| protected void cleanupRepository() { |
| jpaTemplate = (JpaTemplate)applicationContext.getBean("jpaTemplate", JpaTemplate.class); |
| |
| TransactionTemplate transactionTemplate = new TransactionTemplate(); |
| transactionTemplate.setTransactionManager(new JpaTransactionManager(jpaTemplate.getEntityManagerFactory())); |
| transactionTemplate.setPropagationBehavior(TransactionDefinition.PROPAGATION_REQUIRED); |
| |
| transactionTemplate.execute(new TransactionCallback() { |
| public Object doInTransaction(TransactionStatus arg0) { |
| List list = jpaTemplate.find(SELECT_ALL_STRING); |
| for (Object item : list) { |
| jpaTemplate.remove(item); |
| } |
| jpaTemplate.flush(); |
| return Boolean.TRUE; |
| } |
| }); |
| } |
| } |