/*******************************************************************************
 * ============LICENSE_START==================================================
 * * org.onap.dmaap
 * * ===========================================================================
 * * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
 * * ===========================================================================
 * * 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.json;

import java.util.Iterator;


public class CookieList {

    /**
     * Convert a cookie list into a JSONObject. A cookie list is a sequence
     * of name/value pairs. The names are separated from the values by '='.
     * The pairs are separated by ';'. The names and the values
     * will be unescaped, possibly converting '+' and '%' sequences.
     *
     * To add a cookie to a cooklist,
     * cookielistJSONObject.put(cookieJSONObject.getString("name"),
     *     cookieJSONObject.getString("value"));
     * @param string  A cookie list string
     * @return A JSONObject
     * @throws JSONException
     */
    public static JSONObject toJSONObject(String string) throws JSONException {
        JSONObject jo = new JSONObject();
        JSONTokener x = new JSONTokener(string);
        while (x.more()) {
            String name = Cookie.unescape(x.nextTo('='));
            x.next('=');
            jo.put(name, Cookie.unescape(x.nextTo(';')));
            x.next();
        }
        return jo;
    }


    /**
     * Convert a JSONObject into a cookie list. A cookie list is a sequence
     * of name/value pairs. The names are separated from the values by '='.
     * The pairs are separated by ';'. The characters '%', '+', '=', and ';'
     * in the names and values are replaced by "%hh".
     * @param jo A JSONObject
     * @return A cookie list string
     * @throws JSONException
     */
    public static String toString(JSONObject jo) throws JSONException {
        boolean      b = false;
        Iterator<String> keys = jo.keys();
        String       string;
        StringBuffer sb = new StringBuffer();
        while (keys.hasNext()) {
            string = keys.next().toString();
            if (!jo.isNull(string)) {
                if (b) {
                    sb.append(';');
                }
                sb.append(Cookie.escape(string));
                sb.append("=");
                sb.append(Cookie.escape(jo.getString(string)));
                b = true;
            }
        }
        return sb.toString();
    }
}