/**
 *     Copyright (c) 2018 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.
 */
package org.onap.nbi.apis.serviceinventory.jolt;

import java.util.List;
import org.onap.nbi.exceptions.TechnicalException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import com.bazaarvoice.jolt.Chainr;
import com.bazaarvoice.jolt.JsonUtils;
import com.bazaarvoice.jolt.exception.JoltException;

@Service
public class FindServiceInventoryJsonTransformer {

    private Chainr chainr;

    private static final Logger LOGGER = LoggerFactory.getLogger(FindServiceInventoryJsonTransformer.class);

    public FindServiceInventoryJsonTransformer() {
        List<Object> specs = JsonUtils.classpathToList("/jolt/findServiceInventory.json");
        this.chainr = Chainr.fromSpec(specs);
    }

    public Object transform(Object serviceSpec) {
        Object output = null;
        try {
            output = chainr.transform(serviceSpec);
        } catch (JoltException joE) {
            LOGGER.error("Unable to transform SDC response with JOLT Transformer : " + joE.getMessage());
            throw new TechnicalException("Error while parsing ONAP response");
        }
        return output;
    }

}