DeadLetterChannelNotHandleNewExceptionTest.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;

import org.apache.camel.CamelExecutionException;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Handler;
import org.apache.camel.builder.RouteBuilder;

public class DeadLetterChannelNotHandleNewExceptionTest extends ContextTestSupport {

    public static class BadErrorHandler {
        @Handler
        public void onException(Exchange exchange, Exception exception) throws Exception {
            throw new RuntimeException("error in errorhandler");
        }
    }

    public void testDeadLetterChannelNotHandleNewException() throws Exception {
        try {
            template.sendBody("direct:start", "Hello World");
            fail("Should have thrown exception");
        } catch (CamelExecutionException e) {
            RuntimeException cause = assertIsInstanceOf(RuntimeException.class, e.getCause());
            assertEquals("error in errorhandler", cause.getMessage());
        }
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                errorHandler(deadLetterChannel("bean:" + BadErrorHandler.class.getName())
                        .deadLetterHandleNewException(false));

                from("direct:start")
                    .log("Incoming ${body}")
                    .throwException(new IllegalArgumentException("Forced"));
            }
        };
    }
}