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/* This file is part of the FaCT++ DL reasoner
Copyright (C) 2003-2015 Dmitry Tsarkov and The University of Manchester
Copyright (C) 2015-2016 Dmitry Tsarkov
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef IFOPTIONS_H
#define IFOPTIONS_H
/********************************************************\
|* Interface for the options management for the FaCT++ *|
\********************************************************/
#include <string>
#include <map>
#include <iosfwd>
#include "fpp_assert.h"
class Configuration;
/// class for working with general options with boolean, integer or text values
class ifOption
{
public: // type interface
/// type of an option
enum ioType { iotBool, iotInt, iotText };
private: // preventing copying (unimplemented)
/// no empty c'tor
ifOption ( void );
/// no copy c'tor
ifOption ( const ifOption& o );
/// no assignment
ifOption& operator = ( const ifOption& o );
protected: // members
/// option name
std::string optionName;
/// informal descriprion
std::string optionDescription;
/// default value (name of type)
std::string defaultValue;
/// textual value [relevant iff (type == iotText)]
std::string tValue;
/// type of value: bool, int or text
ioType type;
/// integer value [relevant iff (type == iotInt)]
int iValue;
/// boolean value [relevant iff (type == iotBool)]
bool bValue;
public: // interface
/// c'tor (init all values including proper ?Value)
ifOption ( const std::string& name, const std::string& desc, ioType t, const std::string& defVal );
/// empty d'tor
~ifOption (void ) {}
// write methods
/// set boolean value; @return false in case of error
bool setValue ( bool b ) { bValue = b; return (type != iotBool); }
/// set integer value; @return false in case of error
bool setValue ( int i ) { iValue = i; return (type != iotInt); }
/// set string value; @return false in case of error
bool setValue ( const std::string& t ) { tValue = t; return (type != iotText); }
/// set textualy given value of current type; @return false in case of error
bool setAValue ( const std::string& s );
// access methods
/// get value of a Boolean option
bool getBool ( void ) const { fpp_assert ( type == iotBool ); return bValue; }
/// get value of an integer option
int getInt ( void ) const { fpp_assert ( type == iotInt ); return iValue; }
/// get value of a string option
const std::string& getText ( void ) const { fpp_assert ( type == iotText ); return tValue; }
/// output in the form of config file
void printConfString ( std::ostream& o ) const;
}; // ifOption
// implementation of class ifOption
inline ifOption :: ifOption ( const std::string& name, const std::string& desc, ioType t, const std::string& defVal )
: optionName(name)
, optionDescription(desc)
, defaultValue(defVal)
, type(t)
{
setAValue (defVal);
}
/// set of options with access by name
class ifOptionSet
{
protected: // internal type definitions
/// base internal type
typedef std::map<std::string,ifOption*> OptionSet;
protected: // members
/// set of all avaliable (given) options
OptionSet Base;
protected: // methods
/// get access option structure by name; @return NULL if no such option was registered
const ifOption* locateOption ( const std::string& name ) const;
public: // interface
/// empty c'tor
ifOptionSet ( void ) {}
/// d'tor (delete all registered options)
~ifOptionSet ( void )
{
for ( OptionSet::iterator p = Base.begin(); p != Base.end(); ++p )
delete p->second;
}
/// register an option with given name, description, type and default. @return true iff such option exists
bool RegisterOption (
const std::string& name,
const std::string& desc,
ifOption::ioType t,
const std::string& defVal )
{
if ( locateOption (name) != NULL )
return true;
Base[name] = new ifOption ( name, desc, t, defVal );
return false;
}
/// init all registered option using given section of given configuration
bool initByConfigure ( Configuration& conf, const std::string& Section );
// read access
/// get Boolean value of given option
bool getBool ( const std::string& optionName ) const
{
const ifOption* p = locateOption ( optionName );
fpp_assert ( p != NULL );
return p->getBool ();
}
/// get integral value of given option
int getInt ( const std::string& optionName ) const
{
const ifOption* p = locateOption ( optionName );
fpp_assert ( p != NULL );
return p->getInt ();
}
/// get string value of given option
const std::string& getText ( const std::string& optionName ) const
{
const ifOption* p = locateOption ( optionName );
fpp_assert ( p != NULL );
return p->getText ();
}
/// output option set in the form of config file
void printConfig ( std::ostream& o ) const;
}; // ifOptionSet
#endif
|
