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/*******************************************************************************
 *  ============LICENSE_START=======================================================
 *  org.onap.dmaap
 *  ================================================================================
 *  Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 *  ================================================================================
 *  Modifications Copyright © 2021 Orange.
 *  ================================================================================
 *  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.
 *  ============LICENSE_END=========================================================
 *
 *  ECOMP is a trademark and service mark of AT&T Intellectual Property.
 *
 *******************************************************************************/

package org.onap.dmaap.mr.dme.client;

import com.att.aft.dme2.api.util.DME2ExchangeFaultContext;
import com.att.aft.dme2.api.util.DME2ExchangeReplyHandler;
import com.att.aft.dme2.api.util.DME2ExchangeResponseContext;
import java.io.File;
import java.io.FileWriter;
import org.onap.dmaap.mr.client.MRClientFactory;
import org.onap.dmaap.mr.client.impl.MRSimplerBatchPublisher;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PreferredRouteReplyHandler implements DME2ExchangeReplyHandler {

    private static final Logger logger = LoggerFactory.getLogger(PreferredRouteReplyHandler.class);

    @Override
    public void handleReply(DME2ExchangeResponseContext responseData) {

        if (responseData != null) {
            MRClientFactory.DME2HeadersMap = responseData.getResponseHeaders();
            if (responseData.getResponseHeaders().get("transactionId") != null) {
                logger.info("Transaction_Id : " + responseData.getResponseHeaders().get("transactionId"));
            }

            if (responseData.getRouteOffer() != null) {
                routeWriter("preferredRouteKey", responseData.getRouteOffer());
            }
        }
    }

    @Override
    public void handleFault(DME2ExchangeFaultContext responseData) {

    }

    @Override
    public void handleEndpointFault(DME2ExchangeFaultContext responseData) {

    }

    public void routeWriter(String routeKey, String routeValue) {

        try (FileWriter routeWriter = new FileWriter(new File(MRSimplerBatchPublisher.routerFilePath))) {
            routeWriter.write(routeKey + "=" + routeValue);
        } catch (Exception ex) {
            logger.error("Reply Router Error " + ex);
        }

    }
}