/**
 * 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.aggregator;

import org.apache.camel.CamelException;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.processor.aggregate.AggregationStrategy;
import org.apache.camel.processor.aggregate.PredicateAggregationCollection;

/**
 * Unit test inspired by user forum.
 */
public class AggregatorAndOnExceptionTest extends ContextTestSupport {

    public void testAggregateAndOnException() throws Exception {
        MockEndpoint mock = getMockEndpoint("mock:result");
        mock.expectedBodiesReceived("Bye World");

        template.sendBodyAndHeader("seda:start", "Hello World", "id", 123);
        template.sendBodyAndHeader("seda:start", "Bye World", "id", 123);

        assertMockEndpointsSatisfied();
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                errorHandler(deadLetterChannel("mock:error"));

                onException(CamelException.class).maximumRedeliveries(2);

                from("seda:start")
                    .aggregate(new PredicateAggregationCollection(header("id"),
                        new AggregationStrategy() {
                            public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
                                return newExchange;
                            }
                        },
                        property(Exchange.AGGREGATED_SIZE).isEqualTo(2)))
                    .batchTimeout(500L)
                    .to("mock:result");
            }
        };
    }
}
