/**
* 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.component.elasticsearch5.aggregation;
import org.apache.camel.Exchange;
import org.apache.camel.InvalidPayloadRuntimeException;
import org.apache.camel.processor.aggregate.AggregationStrategy;
import org.elasticsearch.action.ActionRequest;
import org.elasticsearch.action.DocWriteRequest;
import org.elasticsearch.action.bulk.BulkRequest;
/**
* Aggregates two {@link ActionRequest}s into a single {@link BulkRequest}.
*/
public class BulkRequestAggregationStrategy implements AggregationStrategy {
@Override
public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
// Don't use getBody(Class<T>) here as we don't want to coerce the body type using a type converter.
Object objBody = newExchange.getIn().getBody();
if (!(objBody instanceof DocWriteRequest[])) {
throw new InvalidPayloadRuntimeException(newExchange, DocWriteRequest[].class);
}
DocWriteRequest[] newBody = (DocWriteRequest[]) objBody;
BulkRequest request;
if (oldExchange == null) {
request = new BulkRequest();
request.add(newBody);
newExchange.getIn().setBody(request);
return newExchange;
} else {
request = oldExchange.getIn().getBody(BulkRequest.class);
request.add(newBody);
return oldExchange;
}
}
}