/**
* 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 java.util.List;
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.AbstractListAggregationStrategy;
/**
*
*/
public class CustomListAggregationStrategyTest extends ContextTestSupport {
@SuppressWarnings("unchecked")
public void testCustomAggregationStrategy() throws Exception {
MockEndpoint result = getMockEndpoint("mock:result");
result.expectedMessageCount(1);
template.sendBodyAndHeader("direct:start", "100", "id", "1");
template.sendBodyAndHeader("direct:start", "150", "id", "1");
template.sendBodyAndHeader("direct:start", "130", "id", "1");
assertMockEndpointsSatisfied();
// the list will be stored as the message body by default
List<Integer> numbers = result.getExchanges().get(0).getIn().getBody(List.class);
assertNotNull(numbers);
assertEquals(Integer.valueOf("100"), numbers.get(0));
assertEquals(Integer.valueOf("150"), numbers.get(1));
assertEquals(Integer.valueOf("130"), numbers.get(2));
}
@Override
protected RouteBuilder createRouteBuilder() throws Exception {
return new RouteBuilder() {
@Override
public void configure() throws Exception {
from("direct:start")
.aggregate(new MyListOfNumbersStrategy()).header("id")
.completionSize(3)
.to("mock:result");
}
};
}
// START SNIPPET: e1
/**
* Our strategy just group a list of integers.
*/
public final class MyListOfNumbersStrategy extends AbstractListAggregationStrategy<Integer> {
@Override
public Integer getValue(Exchange exchange) {
// the message body contains a number, so just return that as-is
return exchange.getIn().getBody(Integer.class);
}
}
// END SNIPPET: e1
}