org.xbib.datastructures.json.simple.JSONArray Maven / Gradle / Ivy

Go to download
/*
 * Copyright (c) 2013 by Yidong Fang
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.xbib.datastructures.json.simple;

import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

@SuppressWarnings({"serial", "rawtypes", "unchecked"})
public class JSONArray extends ArrayList {

    public JSONArray() {
        super();
    }

    public JSONArray(Collection c) {
        super(c);
    }

    public static void writeJSONString(List list, Writer out) throws IOException {
        if (list == null) {
            out.write("null");
            return;
        }
        boolean first = true;
        Iterator iter = list.iterator();
        out.write('[');
        while (iter.hasNext()) {
            if (first) {
                first = false;
            } else {
                out.write(',');
            }
            Object value = iter.next();
            if (value == null) {
                out.write("null");
                continue;
            }
            JSONValue.writeJSONString(value, out);
        }
        out.write(']');
    }

    public static String toJSONString(List list) {
        if (list == null) {
            return "null";
        }
        boolean first = true;
        StringBuffer sb = new StringBuffer();
        Iterator iter = list.iterator();
        sb.append('[');
        while (iter.hasNext()) {
            if (first) {
                first = false;
            } else {
                sb.append(',');
            }
            Object value = iter.next();
            if (value == null) {
                sb.append("null");
                continue;
            }
            sb.append(JSONValue.toJSONString(value));
        }
        sb.append(']');
        return sb.toString();
    }

    @Override
    public String toString() {
        return toJSONString(this);
    }
}