content: /*
   * Copyright (c) 2015, 2020, Oracle and/or its affiliates.
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License, version 2.0, as published by the
   * Free Software Foundation.
   *
   * This program is also distributed with certain software (including but not
   * limited to OpenSSL) that is licensed under separate terms, as designated in a
   * particular file or component or in included license documentation. The
   * authors of MySQL hereby grant you an additional permission to link the
   * program and your derivative works with the separately licensed software that
   * they have included with MySQL.
   *
   * Without limiting anything contained in the foregoing, this file, which is
   * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
   * version 1.0, a copy of which can be found at
   * http://oss.oracle.com/licenses/universal-foss-exception.
   *
   * This program is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
   * FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
   * for more details.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
   */
  
  package com.mysql.cj.xdevapi;
  
  import java.util.TreeMap;
  
  /**
   * Represents a JSON <b>object</b>:
   * 
   * <pre>
   *   {}
   *   or
   *   {key : value}
   *   or
   *   {key : value, key : value, ...}
   * </pre>
   * 
   * <b>key</b> is a JSON <b>string</b>.
   * <b>value</b> is any of JSON <b>object</b>, <b>array</b>, <b>number</b>, <b>string</b>, true, false, null.
   * 
   * Example of valid JSON object:
   * 
   * <pre>
   * {
   * "field1" : "value 1",
   * "field2" : 1.234544E+26,
   * "field3" : true,
   * "field4" : false,
   * "field5" : null,
   * "field6" : {
   *            "inner field 1" : "inner value 1",
   *            "inner field 2" : 2,
   *            "inner field 3" : true,
   *            "inner field 4" : false,
   *            "inner field 5" : null,
   *            "inner field 6" : [],
   *            "inner field 7" : {}
   *            },
   * "field7" : ["arr1", 3, true, false, null, [], {}]
   * }
   * </pre>
   * 
   * To create {@link DbDoc} from existing string representation you need to use {@link JsonParser#parseDoc(java.io.StringReader)} method:
   * 
   * <pre>
   * DbDoc doc = JsonParser.parseDoc(new StringReader(&quot;{\&quot;key1\&quot; : \&quot;value1\&quot;}&quot;));
   * </pre>
   * 
   * You can construct JSON document by {@link DbDoc}, {@link JsonString}, {@link JsonNumber}, {@link JsonArray} and {@link JsonLiteral} methods and get JSON
   * string representation by using {@link #toString()} method. For example, to get the document shown above:
   * 
   * <pre>
   * DbDoc doc = new DbDoc().add(&quot;field1&quot;, new JsonString().setValue(&quot;value 1&quot;)).add(&quot;field2&quot;, new JsonNumber().setValue(&quot;12345.44E22&quot;))
   *         .add(&quot;field3&quot;, JsonLiteral.TRUE).add(&quot;field4&quot;, JsonLiteral.FALSE).add(&quot;field5&quot;, JsonLiteral.NULL)
   *         .add(&quot;field6&quot;,
   *                 new DbDoc().add(&quot;inner field 1&quot;, new JsonString().setValue(&quot;inner value 1&quot;)).add(&quot;inner field 2&quot;, new JsonNumber().setValue(&quot;2&quot;))
   *                         .add(&quot;inner field 3&quot;, JsonLiteral.TRUE).add(&quot;inner field 4&quot;, JsonLiteral.FALSE).add(&quot;inner field 5&quot;, JsonLiteral.NULL)
   *                         .add(&quot;inner field 6&quot;, new JsonArray()).add(&quot;inner field 7&quot;, new DbDoc()))
   *         .add(&quot;field7&quot;, new JsonArray().addValue(new JsonString().setValue(&quot;arr1&quot;)).addValue(new JsonNumber().setValue(&quot;3&quot;)).addValue(JsonLiteral.TRUE)
   *                 .addValue(JsonLiteral.FALSE).addValue(JsonLiteral.NULL).addValue(new JsonArray()).addValue(new DbDoc()));
   * 
   * doc.toString();
   * </pre>
   */
  public class DbDocImpl extends TreeMap<String, JsonValue> implements DbDoc {
  
      private static final long serialVersionUID = 6557406141541247905L;
  
      @Override
      public String toString() {
          StringBuilder sb = new StringBuilder("{");
          for (String key : keySet()) {
              if (sb.length() > 1) {
                  sb.append(",");
              }
              sb.append("\"").append(key).append("\":").append(get(key).toString());
          }
          sb.append("}");
          return sb.toString();
      }
  
      @Override
      public String toFormattedString() {
          StringBuilder sb = new StringBuilder("{");
          for (String key : keySet()) {
              if (sb.length() > 1) {
                  sb.append(",");
              }
              sb.append("\n\"").append(key).append("\" : ").append(get(key).toFormattedString());
          }
          if (size() > 0) {
              sb.append("\n");
          }
          sb.append("}");
          return sb.toString();
      }
  
      public DbDoc add(String key, JsonValue val) {
          put(key, val);
          return this;
      }
  
  }
  