components/camel-rabbitmq/src/test/java/org/apache/camel/component/rabbitmq/RabbitMQRequeueHandledExceptionIntTest.java

/**
 * 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.rabbitmq;

import org.apache.camel.Endpoint;
import org.apache.camel.EndpointInject;
import org.apache.camel.Produce;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.test.junit4.CamelTestSupport;
import org.junit.Test;

/**
 * Integration test to confirm REQUEUE header causes message not to be re-queued when an handled exception occurs.
 */
public class RabbitMQRequeueHandledExceptionIntTest extends CamelTestSupport {
    public static final String ROUTING_KEY = "rk4";

    @Produce(uri = "direct:rabbitMQ")
    protected ProducerTemplate directProducer;

    @EndpointInject(uri = "rabbitmq:localhost:5672/ex4?username=cameltest&password=cameltest"
            + "&autoAck=false&queue=q4&routingKey=" + ROUTING_KEY)
    private Endpoint rabbitMQEndpoint;

    @EndpointInject(uri = "mock:producing")
    private MockEndpoint producingMockEndpoint;

    @EndpointInject(uri = "mock:consuming")
    private MockEndpoint consumingMockEndpoint;

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {

            @Override
            public void configure() throws Exception {
                from("direct:rabbitMQ")
                        .id("producingRoute")
                        .log("Sending message")
                        .inOnly(rabbitMQEndpoint)
                        .to(producingMockEndpoint);

                from(rabbitMQEndpoint)
                        .onException(Exception.class)
                        .handled(true)
                        .end()
                        .id("consumingRoute")
                        .log("Receiving message")
                        .inOnly(consumingMockEndpoint)
                        .throwException(new Exception("Simulated handled exception"));
            }
        };
    }

    @Test
    public void testTrueRequeueHeaderWithHandleExceptionNotCausesRequeue() throws Exception {
        producingMockEndpoint.expectedMessageCount(1);
        consumingMockEndpoint.setMinimumExpectedMessageCount(1);

        directProducer.sendBodyAndHeader("Hello, World!", RabbitMQConstants.REQUEUE, true);

        producingMockEndpoint.assertIsSatisfied();
        consumingMockEndpoint.assertIsSatisfied();
    }
}