SplitReaggregateRouteBuilder.java

/*
 * Copyright (C) Scott Cranton, Jakub Korab, and Christian Posta
 * https://github.com/CamelCookbook
 *
 * Licensed 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.camelcookbook.splitjoin.splitreaggregate;

import org.apache.camel.builder.RouteBuilder;
import org.camelcookbook.splitjoin.aggregate.SetAggregationStrategy;

public class SplitReaggregateRouteBuilder extends RouteBuilder {
    @Override
    public void configure() throws Exception {
        from("direct:in")
            .split(xpath("/books/book"))
                .setHeader("category", xpath("/book/@category").stringResult())
                .transform(xpath("/book/@title").stringResult())
                .to("direct:groupByCategory")
            .end();

        from("direct:groupByCategory")
            .aggregate(header("category"), new SetAggregationStrategy()).completionTimeout(500)
                .to("mock:out")
            .end();

        from("direct:combined")
            .split(xpath("/books/book"))
                .setHeader("category", xpath("/book/@category").stringResult())
                .transform(xpath("/book/@title").stringResult())
                .aggregate(header("category"), new SetAggregationStrategy()).completionTimeout(500)
                    .to("mock:out")
                .endParent()
            .end();
    }
}