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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
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 * GPL Classpath Exception:
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 *
 * Modifications:
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package com.sun.jersey.json.impl;

import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map;
import org.codehaus.jettison.json.JSONArray;
import org.codehaus.jettison.json.JSONException;
import org.codehaus.jettison.json.JSONObject;

/**
 *
 * @author ps23762
 */
final class JSONTransformer {
    @SuppressWarnings("unchecked")
    static  Map asMap(String jsonObjectVal) throws JSONException {
        if (null == jsonObjectVal) {
            return null;
        }
        Map result = new HashMap();

        JSONObject sourceMap = new JSONObject(jsonObjectVal);
        Iterator keyIterator = sourceMap.keys();
        while (keyIterator.hasNext()) {
            String key = keyIterator.next();
            result.put(key, (T)sourceMap.get(key));
        }
        return result;
    }
    
    
    @SuppressWarnings("unchecked")
    static  Collection asCollection(String jsonArrayVal) throws JSONException {
        if (null == jsonArrayVal) {
            return null;
        }
        Collection result = new LinkedList();

        JSONArray arrayVal = new JSONArray(jsonArrayVal);
        for (int i = 0; i < arrayVal.length(); i++) {
            result.add((T)arrayVal.get(i));
        }
        return result;
    }
    
    static String asJsonArray(Collection collection) {
        return (null == collection) ? "[]" : (new JSONArray(collection)).toString();
    }
    
    static String asJsonObject(Map map) {
        return (null == map) ? "{}" : (new JSONObject(map)).toString();
    }
}