com.cefriel.util.MappingFileAggregation Maven / Gradle / Ivy

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Chimera Component for the Apache Camel framework that enables RML based mappings through a fork of the rmlmapper library

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/*
 * Copyright (c) 2019-2022 Cefriel.
 *
 * 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 com.cefriel.util;

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

import java.io.InputStream;
public class MappingFileAggregation implements AggregationStrategy {
    @Override
    public Exchange aggregate(Exchange oldExchange, Exchange newExchange) {
        InputStream newInputStream = newExchange.getMessage().getBody(InputStream.class);
        if (newInputStream != null) {
            oldExchange.setProperty(ChimeraRmlConstants.RML_MAPPINGS, newInputStream);
        }
        return oldExchange;
    }
}