JSONObject.java

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * 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 com.motorola.studio.android.json;

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import java.util.Stack;

public class JSONObject extends JSONValue
{
    private final Set<JSONPair> value;

    public JSONObject(Set<JSONPair> value)
    {
        this.value = value;
    }

    @Override
    public Set<JSONPair> getValue()
    {
        return value;
    }

    static JSONValue parseValues(List<Character> json)
    {
        Stack<Character> stack = new Stack<Character>();
        Set<JSONPair> values = new HashSet<JSONPair>();
        boolean parsed = false;
        while (!parsed)
        {
            Character next = json.get(0);

            if (next == '{')
            {
                json.remove(0);
                stack.push('{');
            }
            else if (next == '}')
            {
                json.remove(0);
                if (stack.pop() != '{')
                {
                    throw new IllegalArgumentException();
                }
                else
                {
                    parsed = true;
                }
            }
            else if (next == ' ' || next == '\r' || next == '\n' || next == ',')
            {
                json.remove(0);
            }
            else if (next == '"')
            {
                values.add(JSONPair.parse(json));
            }
        }
        return new JSONObject(values);
    }

    @Override
    public String toString()
    {
        String string = "{";
        Iterator<JSONPair> objectIterator = value.iterator();
        while (objectIterator.hasNext())
        {
            string += objectIterator.next().toString();
            if (objectIterator.hasNext())
            {
                string += ",";
            }
        }
        string += "}";

        return string;
    }

}