source: projects/synaptic/trunk/common/rcacheactor.h @ 280

Revision 280, 2.9 KB checked in by yasumichi, 13 years ago (diff)

first import

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1/* rcacheactor.h
2 *
3 * Copyright (c) 2000-2003 Conectiva S/A
4 *               2002 Michael Vogt <mvo@debian.org>
5 *
6 * Author: Alfredo K. Kojima <kojima@conectiva.com.br>
7 *         Michael Vogt <mvo@debian.org>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of the
12 * License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 */
24
25#ifndef RCACHEACTOR_H
26#define RCACHEACTOR_H
27
28#include "rpackagelister.h"
29#include <regex.h>
30
31class RCacheActor:public RCacheObserver {
32 public:
33
34   enum Action {
35      ACTION_KEEP,
36      ACTION_INSTALL,
37      ACTION_REINSTALL,
38      ACTION_REMOVE
39   };
40
41 protected:
42
43   RPackageLister *_lister;
44   RPackageLister::pkgState *_laststate;
45
46 public:
47
48   virtual void run(vector<RPackage *> &List, int Action) = 0;
49
50   virtual void notifyCachePreChange() {
51      updateState();
52   };
53
54   virtual void notifyCachePostChange();
55
56   virtual void notifyCacheOpen() {
57   };
58
59   virtual void updateState() {
60      delete _laststate;
61      _laststate = new RPackageLister::pkgState;
62      _lister->saveState(*_laststate);
63   };
64
65   RCacheActor(RPackageLister *lister)
66 :   _lister(lister), _laststate(0) {
67      _lister->registerCacheObserver(this);
68   };
69
70   virtual ~ RCacheActor() {
71      _lister->unregisterCacheObserver(this);
72   };
73};
74
75class RCacheActorRecommends:public RCacheActor {
76 protected:
77
78   typedef vector<string> ListType;
79   typedef map<string, ListType> MapType;
80   typedef map<regex_t *, ListType> RegexMapType;
81
82   MapType _map;
83   MapType _map_wildcard;
84   RegexMapType _map_regex;
85
86   string _langLast;
87   ListType _langCache;
88
89   void setLanguageCache();
90
91   inline bool actOnPkg(string name, int Action) {
92      RPackage *Pkg = _lister->getPackage(name);
93      if (Pkg != NULL) {
94         switch (Action) {
95            case ACTION_KEEP:
96               Pkg->setKeep();
97               break;
98            case ACTION_INSTALL:
99               Pkg->setInstall();
100               break;
101            case ACTION_REMOVE:
102               Pkg->setRemove();
103               break;
104         }
105         return true;
106      }
107      return false;
108   };
109
110
111 public:
112
113   virtual void run(vector<RPackage *> &List, int Action);
114
115   virtual void notifyCachePostChange();
116
117   RCacheActorRecommends(RPackageLister *lister, string FileName);
118   virtual ~RCacheActorRecommends();
119};
120
121#endif
122
123// vim:sts=3:sw=3
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