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 com.oracle.jmx.remote.rest.json;

    27 

    28 /**

    29  * @author harsha

    30  */

    31 public class JSONPrimitive implements JSONElement {

    32 

    33     private final Object value;

    34 

    35     public JSONPrimitive(long i) {

    36         value = i;

    37     }

    38 

    39     public JSONPrimitive(double i) {

    40         value = i;

    41     }

    42 

    43     public JSONPrimitive(Boolean i) {

    44         value = i;

    45     }

    46 

    47     public JSONPrimitive(String s) {

    48         value = s;

    49     }

    50 

    51     public static String escape(String s) {

    52         StringBuilder sb = new StringBuilder();

    53         for (int i = 0; i < s.length(); i++) {

    54             char ch = s.charAt(i);

    55             if (ch == '\\') {

    56                 if (i < s.length() - 1 && (s.charAt(i + 1) == '\\' || s.charAt(i + 1) == '"')) {

    57                     sb.append(ch).append(s.charAt(i + 1));

    58                     i++;

    59                 } else {

    60                     sb.append("\\\\");

    61                 }

    62             } else if (ch == '"') {

    63                 sb.append("\\\"");

    64             } else {

    65                 sb.append(ch);

    66             }

    67         }

    68         return sb.toString();

    69     }

    70 

    71     public Object getValue() {

    72         return value;

    73     }

    74 

    75     @Override

    76     public String toJsonString() {

    77         if (value instanceof String) {

    78             return "\"" + escape(value.toString()) + "\"";

    79         }

    80         return value != null ? value.toString() : null;

    81     }

    82 

    83     @Override

    84     public int hashCode() {

    85         if (value instanceof String) {

    86             return ((String) value).hashCode();

    87         } else if (value instanceof Long) {

    88             return ((Long) value).hashCode();

    89         } else if (value instanceof Double) {

    90             return ((Double) value).hashCode();

    91         } else if (value instanceof Boolean) {

    92             return ((Boolean) value).hashCode();

    93         } else {

    94             return super.hashCode();

    95         }

    96     }

    97 

    98     @Override

    99     public boolean equals(Object obj) {

   100         if (obj == this) {

   101             return true;

   102         }

   103 

   104         if (!(obj instanceof JSONPrimitive)) {

   105             return false;

   106         }

   107 

   108         JSONPrimitive o = (JSONPrimitive) obj;

   109 

   110         if (value == null && o.getValue() == null) {

   111             return true;

   112         }

   113 

   114         if (value != null && o.getValue() != null) {

   115             if (value.getClass().equals(o.getValue().getClass())) {

   116                 return value.equals(o.getValue());

   117             }

   118         }

   119         return false;

   120     }

   121 }