src/k8sdbjs/k8sdb.h

   1 /* coded by Ketmar // Vampire Avalon (psyc://ketmar.no-ip.org/~Ketmar)
   2  * Understanding is not required. Only obedience.
   3  *
   4  * This program is free software. It comes without any warranty, to
   5  * the extent permitted by applicable law. You can redistribute it
   6  * and/or modify it under the terms of the Do What The Fuck You Want
   7  * To Public License, Version 2, as published by Sam Hocevar. See
   8  * http://sam.zoy.org/wtfpl/COPYING for more details.
   9  */
  10 #ifndef K8SDB_H
  11 #define K8SDB_H
  12
  13 #include <QByteArray>
  14 #include <QFile>
  15 #include <QHash>
  16 #include <QList>
  17 #include <QKeySequence>
  18 #include <QSet>
  19 #include <QString>
  20 #include <QStringList>
  21
  22 #include "k8json.h"
  23 #include "k8ascii85.h"
  24
  25
  26 class K8SDB {
  27 public:
  28   enum CreateMode {
  29     OpenExisting=0,
  30     OpenAlways=1,
  31     WipeAlways=2
  32   };
  33
  34   enum Type {
  35     Invalid=0,
  36     Boolean=1,
  37     Integer=2, //32-bit signed integer
  38     String=3,
  39     ByteArray=4,
  40     KeySequence=5,
  41     MaxKeyType
  42   };
  43
  44   K8SDB (const QString &aPathName, CreateMode cMode=OpenExisting);
  45   ~K8SDB ();
  46
  47   inline bool isOpen () const { return mIsOpen; }
  48   inline const QString &pathname () const { return mFileName; }
  49
  50   /*
  51    * TypeOverwrite: overwrite existing keys with different type in set()?
  52    * default: yes
  53    */
  54   inline bool typeOverwrite () const { return mTypeOverwrite; }
  55   inline void setTypeOverwrite (bool tover) { mTypeOverwrite = tover; }
  56
  57   bool remove (const QString &name);
  58   /*
  59    * remove all keys with names starting from 'name'
  60    */
  61   bool removeAll (const QString &name);
  62   bool hasKey (const QString &name) const;
  63   Type type (const QString &name) const; // returns Invalid if there is no such key
  64
  65   bool set (const QString &name, bool v);
  66   inline bool setBool (const QString &name, bool v) { return set(name, v); }
  67   bool set (const QString &name, qint32 v);
  68   inline bool setInt (const QString &name, qint32 v) { return set(name, v); }
  69   bool set (const QString &name, const QString &v);
  70   inline bool set (const QString &name, const char *v) { return set(name, QString(v)); }
  71   bool set (const QString &name, const QKeySequence &v);
  72   bool set (const QString &name, const QByteArray &v);
  73   bool set (const QString &name, Type type, const QString &v);
  74
  75   bool toBool (const QString &name, bool *ok=0);
  76   qint32 toInt (const QString &name, bool *ok=0);
  77   QString toString (const QString &name, bool *ok=0);
  78   QByteArray toByteArray (const QString &name, bool *ok=0);
  79   QKeySequence toKeySequence (const QString &name, bool *ok=0);
  80
  81   QString asString (const QString &name, bool *ok=0);
  82
  83   QStringList keys () const;
  84   QStringList keysPfx (const QString &pfx) const;
  85
  86   static const char *typeName (Type type);
  87
  88 private:
  89   bool readJSON ();
  90   bool writeJSON ();
  91
  92 private:
  93   QString mFileName;
  94   CreateMode mMode;
  95   bool mTypeOverwrite;
  96   bool mIsOpen;
  97
  98   QHash<QString, QVariant> mKeys;
  99 };
 100
 101
 102
 103 #endif