src/ConfigOption.h

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