1 /*

     2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.internal.management.remote.rest.json;

    27 

    28 import java.util.ArrayList;

    29 import java.util.Iterator;

    30 

    31 /**

    32  * @author harsha

    33  */

    34 public class JSONArray extends ArrayList<JSONElement> implements JSONElement {

    35 

    36     private static final long serialVersionUID = -506975558678956426L;

    37 

    38     @Override

    39     public String toJsonString() {

    40         if (isEmpty()) {

    41             return null;

    42         }

    43         StringBuilder sbuild = new StringBuilder();

    44         sbuild.append("[");

    45         Iterator<JSONElement> itr = iterator();

    46         while (itr.hasNext()) {

    47             JSONElement val = itr.next();

    48             if (val != null)

    49                 sbuild.append(val.toJsonString()).append(", ");

    50             else

    51                 sbuild.append("null").append(", ");

    52         }

    53 

    54         sbuild.deleteCharAt(sbuild.lastIndexOf(","));

    55         sbuild.append("]");

    56         return sbuild.toString();

    57     }

    58 }