/**
* 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.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.idempotent.jpa.MessageProcessed;
import org.apache.camel.spring.SpringCamelContext;
import org.apache.camel.spring.SpringRouteBuilder;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Before;
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;
import static org.apache.camel.processor.idempotent.jpa.JpaMessageIdRepository.jpaMessageIdRepository;
/**
* @version
*/
public class JpaIdempotentConsumerTest extends CamelTestSupport {
protected static final String SELECT_ALL_STRING = "select x from " + MessageProcessed.class.getName() + " x where x.processorName = ?1";
protected static final String PROCESSOR_NAME = "myProcessorName";
protected ApplicationContext applicationContext;
protected JpaTemplate jpaTemplate;
protected Endpoint startEndpoint;
protected MockEndpoint resultEndpoint;
@Override
protected CamelContext createCamelContext() throws Exception {
applicationContext = new ClassPathXmlApplicationContext("org/apache/camel/processor/jpa/spring.xml");
cleanupRepository();
return SpringCamelContext.springCamelContext(applicationContext);
}
@Override
public boolean isUseRouteBuilder() {
return false;
}
protected void cleanupRepository() {
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<Object>() {
public Object doInTransaction(TransactionStatus arg0) {
List<?> list = jpaTemplate.find(SELECT_ALL_STRING, PROCESSOR_NAME);
for (Object item : list) {
jpaTemplate.remove(item);
}
jpaTemplate.flush();
return Boolean.TRUE;
}
});
}
@Override
@Before
public void setUp() throws Exception {
super.setUp();
startEndpoint = resolveMandatoryEndpoint("direct:start");
resultEndpoint = getMockEndpoint("mock:result");
}
@SuppressWarnings("unchecked")
@Test
public void testDuplicateMessagesAreFilteredOut() throws Exception {
context.addRoutes(new SpringRouteBuilder() {
@Override
public void configure() throws Exception {
// START SNIPPET: idempotent
from("direct:start").idempotentConsumer(
header("messageId"),
jpaMessageIdRepository(lookup(JpaTemplate.class), PROCESSOR_NAME)
).to("mock:result");
// END SNIPPET: idempotent
}
});
context.start();
resultEndpoint.expectedBodiesReceived("one", "two", "three");
sendMessage("1", "one");
sendMessage("2", "two");
sendMessage("1", "one");
sendMessage("2", "two");
sendMessage("1", "one");
sendMessage("3", "three");
assertMockEndpointsSatisfied();
// all 3 messages should be in jpa repo
Set<String> ids = new HashSet<String>();
List<MessageProcessed> list = jpaTemplate.find(SELECT_ALL_STRING, PROCESSOR_NAME);
for (MessageProcessed item : list) {
ids.add(item.getMessageId());
}
assertEquals(3, ids.size());
assertTrue("Should contain message 1", ids.contains("1"));
assertTrue("Should contain message 2", ids.contains("2"));
assertTrue("Should contain message 3", ids.contains("3"));
}
@SuppressWarnings("unchecked")
@Test
public void testFailedExchangesNotAdded() throws Exception {
context.addRoutes(new SpringRouteBuilder() {
@Override
public void configure() throws Exception {
errorHandler(deadLetterChannel("mock:error").maximumRedeliveries(0).redeliveryDelay(0).logStackTrace(false));
from("direct:start").idempotentConsumer(
header("messageId"),
jpaMessageIdRepository(lookup(JpaTemplate.class), PROCESSOR_NAME)
).process(new Processor() {
public void process(Exchange exchange) throws Exception {
String id = exchange.getIn().getHeader("messageId", String.class);
if (id.equals("2")) {
throw new IllegalArgumentException("Damn I cannot handle id 2");
}
}
}).to("mock:result");
}
});
context.start();
// we send in 2 messages with id 2 that fails
getMockEndpoint("mock:error").expectedMessageCount(2);
resultEndpoint.expectedBodiesReceived("one", "three");
sendMessage("1", "one");
sendMessage("2", "two");
sendMessage("1", "one");
sendMessage("2", "two");
sendMessage("1", "one");
sendMessage("3", "three");
assertMockEndpointsSatisfied();
// only message 1 and 3 should be in jpa repo
Set<String> ids = new HashSet<String>();
List<MessageProcessed> list = jpaTemplate.find(SELECT_ALL_STRING, PROCESSOR_NAME);
for (MessageProcessed item : list) {
ids.add(item.getMessageId());
}
assertEquals(2, ids.size());
assertTrue("Should contain message 1", ids.contains("1"));
assertTrue("Should contain message 3", ids.contains("3"));
}
protected void sendMessage(final Object messageId, final Object body) {
template.send(startEndpoint, new Processor() {
public void process(Exchange exchange) {
// now lets fire in a message
Message in = exchange.getIn();
in.setBody(body);
in.setHeader("messageId", messageId);
}
});
}
}