camel-2.8.x/camel-core/src/test/java/org/apache/camel/processor/async/AsyncEndpointSplitFineGrainedErrorHandlingTest.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.processor.async;

import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;

/**
 * @version 
 */
public class AsyncEndpointSplitFineGrainedErrorHandlingTest extends ContextTestSupport {

    private static int counter;

    public void testAsyncEndpoint() throws Exception {
        getMockEndpoint("mock:before").expectedBodiesReceived("A", "B", "C");
        getMockEndpoint("mock:after").expectedBodiesReceived("Bye Camel", "Bye Camel", "Bye Camel");
        getMockEndpoint("mock:result").expectedBodiesReceived("A,B,C");

        template.sendBody("direct:start", "A,B,C");

        assertMockEndpointsSatisfied();

        // 3 split messages + 1 redelivery attempt
        assertEquals(3 + 1, counter);
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                context.addComponent("async", new MyAsyncComponent());

                onException(Exception.class).maximumRedeliveries(2).redeliveryDelay(0);

                from("direct:start")
                    .split(body())
                        .to("mock:before")
                        .to("async:Bye Camel")
                        .process(new Processor() {
                            public void process(Exchange exchange) throws Exception {
                                if (counter++ == 1) {
                                    throw new IllegalArgumentException("Cannot do this");
                                }
                            }
                        })
                        .to("mock:after")
                    .end()
                    .to("mock:result");
            }
        };
    }

}