jsonformatter.h
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1 /*
2  * Copyright (C) 2011 Tommi Maekitalo
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * As a special exception, you may use this file as part of a free
10  * software library without restriction. Specifically, if other files
11  * instantiate templates or use macros or inline functions from this
12  * file, or you compile this file and link it with other files to
13  * produce an executable, this file does not by itself cause the
14  * resulting executable to be covered by the GNU General Public
15  * License. This exception does not however invalidate any other
16  * reasons why the executable file might be covered by the GNU Library
17  * General Public License.
18  *
19  * This library is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22  * Lesser General Public License for more details.
23  *
24  * You should have received a copy of the GNU Lesser General Public
25  * License along with this library; if not, write to the Free Software
26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
27  */
28 
29 #ifndef CXXTOOLS_JSONFORMATTER_H
30 #define CXXTOOLS_JSONFORMATTER_H
31 
32 #include <cxxtools/formatter.h>
33 #include <cxxtools/textstream.h>
34 
35 namespace cxxtools
36 {
37  class JsonFormatter : public Formatter
38  {
39  public:
41  : _ts(0),
42  _level(1),
43  _lastLevel(0),
44  _beautify(false)
45  {
46  }
47 
48  explicit JsonFormatter(std::basic_ostream<cxxtools::Char>& ts)
49  : _ts(0),
50  _level(1),
51  _lastLevel(0),
52  _beautify(false)
53  {
54  begin(ts);
55  }
56 
57  void begin(std::basic_ostream<cxxtools::Char>& ts);
58 
59  void finish();
60 
61  virtual void addValueString(const std::string& name, const std::string& type,
62  const String& value);
63 
64  virtual void addValueStdString(const std::string& name, const std::string& type,
65  const std::string& value);
66 
67  virtual void addValueBool(const std::string& name, const std::string& type,
68  bool value);
69 
70  virtual void addValueInt(const std::string& name, const std::string& type,
71  int_type value);
72 
73  virtual void addValueUnsigned(const std::string& name, const std::string& type,
74  unsigned_type value);
75 
76  virtual void addValueFloat(const std::string& name, const std::string& type,
77  long double value);
78 
79  virtual void addNull(const std::string& name, const std::string& type);
80 
81  virtual void beginArray(const std::string& name, const std::string& type);
82 
83  virtual void finishArray();
84 
85  virtual void beginObject(const std::string& name, const std::string& type);
86 
87  virtual void beginMember(const std::string& name);
88 
89  virtual void finishMember();
90 
91  virtual void finishObject();
92 
93  bool beautify() const { return _beautify; }
94 
95  void beautify(bool sw) { _beautify = sw; }
96 
97  void beginValue(const std::string& name);
98 
99  void finishValue();
100 
101  private:
102  void indent();
103  void stringOut(const std::string& str);
104  void stringOut(const cxxtools::String& str);
105 
106  std::basic_ostream<cxxtools::Char>* _ts;
107  unsigned _level;
108  unsigned _lastLevel;
109  bool _beautify;
110  };
111 
112 }
113 
114 #endif // CXXTOOLS_JSONFORMATTER_H
115