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/**
 * ============LICENSE_START==========================================
 * org.onap.aai
 * ===================================================================
 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
 * Copyright © 2017-2018 Amdocs
 * ===================================================================
 * 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============================================
 */
package org.onap.aai.modelloader.util;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.XML;

public class JsonXmlConverter {

    private JsonXmlConverter() {
        throw new AssertionError("Instantiating utility class.");
    }

    /**
     * Determines whether or not the supplied text string represents a valid JSON structure or not.
     * 
     * @param text The text to be evaluated.
     * @return - true if the string represents a valid JSON object, false, otherwise.
     */
    public static boolean isValidJson(String text) {
        try {
            new JSONObject(text);
        } catch (JSONException ex) {
            try {
                new JSONArray(text);
            } catch (JSONException ex1) {
                return false;
            }
        }

        return true;
    }

    /**
     * Takes a text string representing a valid JSON structure and converts it to an equivalent XML string.
     * 
     * @param jsonText The JSON string to convert to XML.
     * @return an XML string representation of the supplied JSON string.
     */
    public static String convertJsonToXml(String jsonText) {
        return XML.toString(new JSONObject(jsonText));
    }

    /**
     * Takes a text string representing a valid XML structure and converts it to an equivalent JSON string.
     * 
     * @param xmlText The XML string to convert to JSON.
     * @return a JSON string representation of the supplied XML string.
     */
    public static String convertXmlToJson(String xmlText) {
        JSONObject jsonObj = XML.toJSONObject(xmlText);
        return jsonObj.toString();
    }
}