opensync-plugin/src/idmap.h

   1 //
   2 // \file        uidmap.h
   3 //              Class that maps opensync UID strings to Blackberry
   4 //              Record ID's and back.
   5 //
   6
   7 /*
   8     Copyright (C) 2007-2010, Net Direct Inc. (http://www.netdirect.ca/)
   9
  10     This program is free software; you can redistribute it and/or modify
  11     it under the terms of the GNU General Public License as published by
  12     the Free Software Foundation; either version 2 of the License, or
  13     (at your option) any later version.
  14
  15     This program is distributed in the hope that it will be useful,
  16     but WITHOUT ANY WARRANTY; without even the implied warranty of
  17     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  18
  19     See the GNU General Public License in the COPYING file at the
  20     root directory of this project for more details.
  21 */
  22
  23 #ifndef __BARRY_SYNC_UIDMAP_H__
  24 #define __BARRY_SYNC_UIDMAP_H__
  25
  26 #include <map>
  27 #include <string>
  28 #include <stdint.h>
  29
  30 class idmap
  31 {
  32 public:
  33         typedef std::string                     uid_type;
  34         typedef uint32_t                        rid_type; // record ID
  35         typedef std::map<uid_type, rid_type>    map_type;
  36         typedef map_type::iterator              iterator;
  37         typedef map_type::const_iterator        const_iterator;
  38
  39 private:
  40         // blank objects, so references work
  41         uid_type m_blank_uid;
  42         rid_type m_blank_rid;
  43
  44         // the map data
  45         map_type m_map;
  46
  47 public:
  48         idmap();
  49         ~idmap();
  50
  51         bool Load(const char *filename);
  52         bool Save(const char *filename) const;
  53
  54         bool UidExists(const uid_type &uid, const_iterator *it = 0) const;
  55         bool RidExists(const rid_type &rid, const_iterator *it = 0) const;
  56
  57         const uid_type& GetUid(const rid_type &rid) const;
  58         const rid_type& GetRid(const uid_type &uid) const;
  59
  60         const uid_type& operator[] (const rid_type &rid) const;
  61         const rid_type& operator[] (const uid_type &uid) const;
  62
  63         // returns map::end() if either id already exists, otherwise
  64         // returns newly mapped item iterator.
  65         //
  66         // The other versions of the function are to make conversion
  67         // between different types easier, giving ability to map
  68         // with any reasonable type, and then access the real
  69         // values through the iterator if needed.
  70         const_iterator Map(const uid_type &uid, const rid_type &rid);
  71         const_iterator Map(unsigned long uid_number, const rid_type &rid);
  72         const_iterator Map(unsigned long uid_number, const std::string &rid_string);
  73
  74         void Unmap(iterator i) { m_map.erase(i); }
  75         void UnmapUid(const uid_type &uid);
  76         void UnmapRid(const rid_type &rid);
  77
  78         // some stl-like functions
  79         iterator begin() { return m_map.begin(); }
  80         iterator end() { return m_map.end(); }
  81         void clear() { m_map.clear(); }
  82 };
  83
  84 #endif
  85