/*
|
* Copyright 2002, LifeLine Networks BV (www.lifeline.nl). All rights reserved.
|
* Copyright 2002, Bastiaan Bakker. All rights reserved.
|
*
|
* See the COPYING file for the terms of usage and distribution.
|
*/
|
|
#if !defined(h_3e645482_ae6a_43e5_8f81_abbc4200212d)
|
#define h_3e645482_ae6a_43e5_8f81_abbc4200212d
|
|
#include <map>
|
#include <string>
|
#include <sstream>
|
#include <stdexcept>
|
#include "Portability.hh"
|
|
namespace log4cpp
|
{
|
class FactoryParams;
|
namespace details
|
{
|
class base_validator_data
|
{
|
public:
|
base_validator_data(const char* tag, const FactoryParams* params) : tag_(tag), params_(params){}
|
|
protected:
|
const char* tag_;
|
const FactoryParams* params_;
|
|
template<typename T>
|
void assign(const std::string& param_value, T& value) const
|
{
|
assign_impl(param_value, value);
|
}
|
|
template<typename T>
|
void assign_impl(const std::string& param_value, T& value) const
|
{
|
std::stringstream s;
|
s << param_value;
|
s >> value;
|
}
|
|
void assign_impl(const std::string& param_value, std::string& value) const
|
{
|
value = param_value;
|
}
|
|
void throw_error(const char* param_name) const
|
{
|
std::stringstream s;
|
s << "Property '" << param_name << "' required to configure " << tag_;
|
throw std::runtime_error(s.str());
|
}
|
};
|
|
class parameter_validator;
|
}
|
|
class LOG4CPP_EXPORT FactoryParams
|
{
|
typedef std::map<std::string, std::string> storage_t;
|
|
storage_t storage_;
|
|
public:
|
typedef storage_t::const_iterator const_iterator;
|
|
const std::string& operator[](const std::string& v) const;
|
std::string& operator[](const std::string& v) { return storage_[v]; }
|
details::parameter_validator get_for(const char* tag) const;
|
const_iterator find(const std::string& t) const;
|
const_iterator begin() const { return storage_.begin(); }
|
const_iterator end() const { return storage_.end(); }
|
};
|
|
namespace details
|
{
|
class optional_params_validator;
|
class required_params_validator : public base_validator_data
|
{
|
public:
|
required_params_validator(const char* tag, const FactoryParams* params) : base_validator_data(tag, params) {}
|
|
#if defined(_MSC_VER) && _MSC_VER < 1300
|
template<typename T>
|
optional_params_validator optional(const char* param, T& value) const { optional_params_validator v(tag_, params_); v(param, value); return v; }
|
#else
|
template<typename T>
|
optional_params_validator optional(const char* param, T& value) const;
|
#endif
|
|
template<typename T>
|
const required_params_validator& operator()(const char* param, T& value) const
|
{
|
FactoryParams::const_iterator i = params_->find(param);
|
if (i != params_->end())
|
assign(i->second, value);
|
else
|
throw_error(param);
|
|
return *this;
|
}
|
|
};
|
|
class optional_params_validator : public base_validator_data
|
{
|
public:
|
optional_params_validator(const char* tag, const FactoryParams* params) : base_validator_data(tag, params) {}
|
|
template<typename T>
|
required_params_validator required(const char* param, T& value) const { required_params_validator v(tag_, params_); v(param, value); return v; }
|
|
template<typename T>
|
const optional_params_validator& operator()(const char* param, T& value) const
|
{
|
FactoryParams::const_iterator i = params_->find(param);
|
if (i != params_->end())
|
assign(i->second, value);
|
|
return *this;
|
|
}
|
};
|
|
class parameter_validator : public base_validator_data
|
{
|
public:
|
parameter_validator(const char* tag, const FactoryParams* params) : base_validator_data(tag, params) {}
|
|
template<typename T>
|
required_params_validator required(const char* param, T& value) const { required_params_validator v(tag_, params_); v(param, value); return v; }
|
|
template<typename T>
|
optional_params_validator optional(const char* param, T& value) const { optional_params_validator v(tag_, params_); v(param, value); return v; }
|
};
|
|
#if !(defined(_MSC_VER) && _MSC_VER < 1300)
|
template<typename T>
|
optional_params_validator
|
required_params_validator::optional(const char* param, T& value) const
|
{
|
optional_params_validator v(tag_, params_);
|
v(param, value);
|
return v;
|
}
|
#endif
|
}
|
|
inline details::parameter_validator FactoryParams::get_for(const char* tag) const
|
{
|
return details::parameter_validator(tag, this);
|
}
|
}
|
|
#endif // h_3e645482_ae6a_43e5_8f81_abbc4200212d
|
