bundles/org.eclipse.rap.rwt.visualization.google/src/org/eclipse/rap/rwt/visualization/google/internal/json/CookieList.java

package org.eclipse.rap.rwt.visualization.google.internal.json;

/*******************************************************************************
* Copyright (c) 2002 JSON.org
* 
* Permission is hereby granted, free of charge, to any person obtaining 
* a copy of this software and associated documentation files (the 
* "Software"), to deal in the Software without restriction, including 
* without limitation the rights to use, copy, modify, merge, publish, 
* distribute, sublicense, and/or sell copies of the Software, and to 
* permit persons to whom the Software is furnished to do so, subject to 
* the following conditions:
* 
* The above copyright notice and this permission notice shall be 
* included in all copies or substantial portions of the Software.
* 
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
******************************************************************************/

import java.util.Iterator;

/**
 * Convert a web browser cookie list string to a JSONObject and back.
 * @author JSON.org
 * @version 2008-09-18
 */
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 o = new JSONObject();
        JSONTokener x = new JSONTokener(string);
        while (x.more()) {
            String name = Cookie.unescape(x.nextTo('='));
            x.next('=');
            o.put(name, Cookie.unescape(x.nextTo(';')));
            x.next();
        }
        return o;
    }


    /**
     * 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 o A JSONObject
     * @return A cookie list string
     * @throws JSONException
     */
    public static String toString(JSONObject o) throws JSONException {
        boolean      b = false;
        Iterator     keys = o.keys();
        String       s;
        StringBuffer sb = new StringBuffer();
        while (keys.hasNext()) {
            s = keys.next().toString();
            if (!o.isNull(s)) {
                if (b) {
                    sb.append(';');
                }
                sb.append(Cookie.escape(s));
                sb.append("=");
                sb.append(Cookie.escape(o.getString(s)));
                b = true;
            }
        }
        return sb.toString();
    }
}