/*
* Copyright (C) Scott Cranton and Jakub Korab
* https://github.com/CamelCookbook
*
* Licensed 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.camelcookbook.transactions.idempotentconsumerintransaction;
import javax.sql.DataSource;
import org.apache.camel.CamelContext;
import org.apache.camel.CamelExecutionException;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.component.sql.SqlComponent;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.impl.SimpleRegistry;
import org.apache.camel.processor.idempotent.jdbc.JdbcMessageIdRepository;
import org.apache.camel.spi.IdempotentRepository;
import org.apache.camel.spring.spi.SpringTransactionPolicy;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.apache.commons.lang.exception.ExceptionUtils;
import org.camelcookbook.transactions.dao.AuditLogDao;
import org.camelcookbook.transactions.utils.EmbeddedDataSourceFactory;
import org.camelcookbook.transactions.utils.ExceptionThrowingProcessor;
import org.junit.Test;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;
import org.springframework.transaction.support.TransactionTemplate;
/**
* Demonstrates the use of onCompletion blocks.
*/
public class IdempotentConsumerInTransactionTest extends CamelTestSupport {
private AuditLogDao auditLogDao;
private DataSource auditDataSource;
private IdempotentRepository idempotentRepository;
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new IdempotentConsumerInTransactionRouteBuilder(idempotentRepository);
}
@Override
protected CamelContext createCamelContext() throws Exception {
SimpleRegistry registry = new SimpleRegistry();
auditDataSource = EmbeddedDataSourceFactory.getDataSource("sql/schema.sql");
registry.put("auditDataSource", auditDataSource);
DataSourceTransactionManager transactionManager = new DataSourceTransactionManager(auditDataSource);
registry.put("transactionManager", transactionManager);
SpringTransactionPolicy propagationRequired = new SpringTransactionPolicy();
propagationRequired.setTransactionManager(transactionManager);
propagationRequired.setPropagationBehaviorName("PROPAGATION_REQUIRED");
registry.put("PROPAGATION_REQUIRED", propagationRequired);
auditLogDao = new AuditLogDao(auditDataSource);
TransactionTemplate transactionTemplate = new TransactionTemplate();
transactionTemplate.setTransactionManager(transactionManager);
transactionTemplate.setPropagationBehaviorName("PROPAGATION_REQUIRES_NEW");
idempotentRepository = new JdbcMessageIdRepository(auditDataSource, transactionTemplate, "ws");
CamelContext camelContext = new DefaultCamelContext(registry);
SqlComponent sqlComponent = new SqlComponent();
sqlComponent.setDataSource(auditDataSource);
camelContext.addComponent("sql", sqlComponent);
return camelContext;
}
@Test
public void testTransactedExceptionThrown() throws InterruptedException {
String message = "this message will explode";
assertEquals(0, auditLogDao.getAuditCount(message));
MockEndpoint mockCompleted = getMockEndpoint("mock:out");
mockCompleted.setExpectedMessageCount(1);
mockCompleted.whenAnyExchangeReceived(new ExceptionThrowingProcessor());
try {
template.sendBodyAndHeader("direct:transacted", message, "messageId", "foo");
fail();
} catch (CamelExecutionException cee) {
assertEquals("boom!", ExceptionUtils.getRootCause(cee).getMessage());
}
assertMockEndpointsSatisfied();
assertEquals(0, auditLogDao.getAuditCount(message)); // the insert was rolled back
// even though the transaction rolled back, the repository should still contain an entry for this messageId
assertTrue(idempotentRepository.contains("foo"));
}
@Test
public void testTransactedExceptionNotThrown() throws InterruptedException {
String message = "this message will be OK";
assertEquals(0, auditLogDao.getAuditCount(message));
MockEndpoint mockCompleted = getMockEndpoint("mock:out");
mockCompleted.setExpectedMessageCount(1);
template.sendBodyAndHeader("direct:transacted", message, "messageId", "foo");
assertMockEndpointsSatisfied();
assertEquals(1, auditLogDao.getAuditCount(message)); // the insert was successful
// even though the transaction rolled back, the repository should still contain an entry for this messageId
assertTrue(idempotentRepository.contains("foo"));
}
@Test
public void testWebserviceExceptionRollsBackTransactionAndIdempotentRepository() throws InterruptedException {
String message = "this message will be OK";
assertEquals(0, auditLogDao.getAuditCount(message));
MockEndpoint mockCompleted = getMockEndpoint("mock:out");
mockCompleted.setExpectedMessageCount(0);
MockEndpoint mockWs = getMockEndpoint("mock:ws");
mockWs.whenAnyExchangeReceived(new ExceptionThrowingProcessor("ws is down"));
try {
template.sendBodyAndHeader("direct:transacted", message, "messageId", "foo");
fail();
} catch (CamelExecutionException cee) {
assertEquals("ws is down", ExceptionUtils.getRootCause(cee).getMessage());
}
assertMockEndpointsSatisfied();
assertEquals(0, auditLogDao.getAuditCount(message)); // the insert was successful
// the repository has not seen this messageId
assertTrue(!idempotentRepository.contains("foo"));
}
}