ConcatenatingAggregationStrategy.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.routing.multicast;

import org.apache.camel.Exchange;
import org.apache.camel.processor.aggregate.AggregationStrategy;

/**
 * Aggregation strategy that concatenates String mockreply.
 */
public class ConcatenatingAggregationStrategy implements AggregationStrategy {
    @Override
    public Exchange aggregate(Exchange exchange1, Exchange exchange2) {
        if (exchange1 == null) {
            return exchange2;
        } else {
            String body1 = exchange1.getIn().getBody(String.class);
            String body2 = exchange2.getIn().getBody(String.class);
            String merged = (body1 == null) ? body2 : body1 + "," + body2;
            exchange1.getIn().setBody(merged);
            return exchange1;
        }
    }
}