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StringAggregator.java
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StringAggregator.java
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/*
* 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.kafkaconnector.aggregator;
import org.apache.camel.AggregationStrategy;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
public class StringAggregator implements AggregationStrategy {
@Override
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
// lets append the old body to the new body
if (oldExchange == null) {
return newExchange;
}
String body = oldExchange.getIn().getBody(String.class);
if (body != null) {
Message newIn = newExchange.getIn();
String newBody = newIn.getBody(String.class);
if (newBody != null) {
body += System.lineSeparator() + newBody;
}
newIn.setBody(body);
}
return newExchange;
}
}