src/ConfigOption.h

   1 /*
   2  * $Id: ConfigOption.h,v 1.1 2004/12/20 16:30:32 robertc Exp $
   3  *
   4  *
   5  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   6  * ----------------------------------------------------------
   7  *
   8  *  Squid is the result of efforts by numerous individuals from
   9  *  the Internet community; see the CONTRIBUTORS file for full
  10  *  details.   Many organizations have provided support for Squid's
  11  *  development; see the SPONSORS file for full details.  Squid is
  12  *  Copyrighted (C) 2001 by the Regents of the University of
  13  *  California; see the COPYRIGHT file for full details.  Squid
  14  *  incorporates software developed and/or copyrighted by other
  15  *  sources; see the CREDITS file for full details.
  16  *
  17  *  This program is free software; you can redistribute it and/or modify
  18  *  it under the terms of the GNU General Public License as published by
  19  *  the Free Software Foundation; either version 2 of the License, or
  20  *  (at your option) any later version.
  21  *
  22  *  This program is distributed in the hope that it will be useful,
  23  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *  GNU General Public License for more details.
  26  *
  27  *  You should have received a copy of the GNU General Public License
  28  *  along with this program; if not, write to the Free Software
  29  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  30  *
  31  */
  32 #ifndef SQUID_CONFIGOPTION_H
  33 #define SQUID_CONFIGOPTION_H
  34
  35 class StoreEntry;
  36
  37 /* for Vector<> */
  38 #include "Array.h"
  39
  40
  41 /* cache option parsers */
  42
  43 class ConfigOption
  44 {
  45
  46 public:
  47     virtual ~ConfigOption() {}
  48
  49     virtual bool parse(char const *option, const char *value, int reconfiguring) = 0;
  50     virtual void dump (StoreEntry * e) const = 0;
  51 };
  52
  53 class ConfigOptionVector : public ConfigOption
  54 {
  55
  56 public:
  57     virtual ~ConfigOptionVector();
  58     virtual bool parse(char const *option, const char *value, int reconfiguring);
  59     virtual void dump(StoreEntry * e) const;
  60     Vector<ConfigOption *>options;
  61 };
  62
  63 template <class C>
  64 class ConfigOptionAdapter : public ConfigOption
  65 {
  66
  67 public:
  68     ConfigOptionAdapter(C& theObject, bool (C::*parseFP)(char const *option, const char *value, int reconfiguring), void (C::*dumpFP) (StoreEntry * e) const) : object(theObject), parser (parseFP), dumper(dumpFP) {}
  69
  70     bool parse(char const *option, const char *value, int reconfiguring)
  71     {
  72         if (parser)
  73             return (object.*parser)(option, value, reconfiguring);
  74
  75         return false;
  76     }
  77
  78     void dump(StoreEntry * e) const
  79     {
  80         if (dumper)
  81             (object.*dumper) (e);
  82     }
  83
  84 private:
  85     C &object;
  86     bool (C::*parser) (char const *option, const char *value, int reconfiguring) ;
  87     void (C::*dumper)(StoreEntry * e) const;
  88 };
  89
  90 #endif /* SQUID_CONFIGOPTION_H */