Files
CoolProp/include/Configuration.h
2014-12-12 18:51:11 -05:00

232 lines
8.8 KiB
C++

#ifndef COOLPROP_CONFIGURATION
#define COOLPROP_CONFIGURATION
#include "Exceptions.h"
#include "CoolPropTools.h"
#if !defined(SWIG) // Hide this for swig - Swig gets confused
#include "rapidjson/rapidjson_include.h"
#endif
/* See http://stackoverflow.com/a/148610
* See http://stackoverflow.com/questions/147267/easy-way-to-use-variables-of-enum-types-as-string-in-c#202511
* This will be used to generate an enum like:
* enum configuration_keys {NORMALIZE_GAS_CONSTANTS, CRITICAL_SPLINES_ENABLED};
*
* The values in this list are given by:
* enum, string representation of enum, default value
*
* The type of the default value specifies the only type that will be accepted for this parameter
*/
#define CONFIGURATION_KEYS_ENUM \
X(NORMALIZE_GAS_CONSTANTS, "NORMALIZE_GAS_CONSTANTS", true) \
X(CRITICAL_WITHIN_1UK, "CRITICAL_WITHIN_1UK", true) \
X(CRITICAL_SPLINES_ENABLED, "CRITICAL_SPLINES_ENABLED", true) \
X(ALTERNATIVE_REFPROP_PATH, "ALTERNATIVE_REFPROP_PATH", "")
// Use preprocessor to create the Enum
enum configuration_keys{
#define X(Enum, String, Default) Enum,
CONFIGURATION_KEYS_ENUM
#undef X
};
namespace CoolProp
{
/// Convert the configuration key to a string in a 1-1 representation.
std::string config_key_to_string(configuration_keys keys);
/// A class that contains one entry in configuration
/// Can be cast to yield the output value
class ConfigurationItem
{
public:
enum ConfigurationDataTypes {CONFIGURATION_NOT_DEFINED_TYPE = 0,
CONFIGURATION_BOOL_TYPE,
CONFIGURATION_DOUBLE_TYPE,
CONFIGURATION_INTEGER_TYPE,
CONFIGURATION_STRING_TYPE,
CONFIGURATION_ENDOFLIST_TYPE};
ConfigurationDataTypes type;
/// Cast to boolean
operator bool() { check_data_type(CONFIGURATION_BOOL_TYPE); return v_bool; };
/// Cast to double
operator double() { check_data_type(CONFIGURATION_DOUBLE_TYPE); return v_double; };
/// Cast to string
operator std::string() { check_data_type(CONFIGURATION_STRING_TYPE); return v_string; };
// Initializer for bool
ConfigurationItem(configuration_keys key, bool val){
this->key = key; type = CONFIGURATION_BOOL_TYPE; v_bool = val;
};
// Initializer for integer
ConfigurationItem(configuration_keys key, int val){
this->key = key; type = CONFIGURATION_INTEGER_TYPE; v_integer = val;
};
// Initializer for double
ConfigurationItem(configuration_keys key, double val){
this->key = key; type = CONFIGURATION_DOUBLE_TYPE; v_double = val;
};
// Initializer for const char *
ConfigurationItem(configuration_keys key, const char *val){
this->key = key; type = CONFIGURATION_STRING_TYPE; v_string = val;
};
// Initializer for string
ConfigurationItem(configuration_keys key, std::string val){
this->key = key; type = CONFIGURATION_STRING_TYPE; v_string = val;
};
void set_bool(bool val){
check_data_type(CONFIGURATION_BOOL_TYPE);
v_bool = val;
}
void set_integer(int val){
check_data_type(CONFIGURATION_INTEGER_TYPE);
v_integer = val;
}
void set_double(double val){
check_data_type(CONFIGURATION_DOUBLE_TYPE);
v_double = val;
}
void set_string(std::string val){
check_data_type(CONFIGURATION_STRING_TYPE);
v_string = val;
}
configuration_keys get_key(void){
return this->key;
}
#if !defined(SWIG)
/// Cast to rapidjson::Value
void add_to_json(rapidjson::Value &val, rapidjson::Document &d){
std::string name_string = config_key_to_string(key);
rapidjson::Value name(name_string.c_str(), d.GetAllocator());
switch (type){
case CONFIGURATION_BOOL_TYPE:
{
rapidjson::Value v(v_bool);
val.AddMember(name, v, d.GetAllocator()); break;
}
case CONFIGURATION_INTEGER_TYPE:
{
rapidjson::Value v(v_integer);
val.AddMember(name, v, d.GetAllocator()); break;
}
case CONFIGURATION_DOUBLE_TYPE:
{
rapidjson::Value v(v_double);
val.AddMember(name, v, d.GetAllocator()); break;
}
case CONFIGURATION_STRING_TYPE:
{
rapidjson::Value v(v_string.c_str(), d.GetAllocator());
val.AddMember(name, v, d.GetAllocator()); break;
}
case CONFIGURATION_ENDOFLIST_TYPE:
case CONFIGURATION_NOT_DEFINED_TYPE:
throw ValueError();
}
}
void set_from_json(rapidjson::Value &val){
switch (type){
case CONFIGURATION_BOOL_TYPE: if (!val.IsBool()){throw ValueError(format("Input is not boolean"));}; v_bool = val.GetBool(); break;
case CONFIGURATION_INTEGER_TYPE: if (!val.IsInt()){throw ValueError(format("Input is not integer"));}; v_integer = val.GetInt(); break;
case CONFIGURATION_DOUBLE_TYPE: if (!val.IsDouble()){throw ValueError(format("Input is not double"));}; v_double = val.GetDouble(); break;
case CONFIGURATION_STRING_TYPE: if (!val.IsString()){throw ValueError(format("Input is not string"));}; v_string = val.GetString(); break;
case CONFIGURATION_ENDOFLIST_TYPE:
case CONFIGURATION_NOT_DEFINED_TYPE:
throw ValueError();
}
}
#endif // !defined(SWIG)
protected:
void check_data_type(ConfigurationDataTypes type){
if (type != this->type){
throw ValueError(format("type does not match"));
}
};
double v_double;
bool v_bool;
int v_integer;
std::string v_string;
configuration_keys key;
};
class Configuration
{
protected:
std::map<configuration_keys,ConfigurationItem> items;
public:
Configuration(){set_defaults();};
~Configuration(){};
/// Get an item from the configuration
ConfigurationItem &get_item(configuration_keys key){
std::map<configuration_keys,ConfigurationItem>::iterator it;
// Try to find it
it = items.find(key);
// If equal to end, not found
if (it != items.end()){
// Found, return it
return it->second;
}
else{
throw ValueError(format("invalid item"));
}
}
/// Add an item to the configuration
void add_item(ConfigurationItem item)
{
std::pair<configuration_keys, ConfigurationItem> pair(item.get_key(), item);
items.insert(pair);
};
/// Return a reference to all of the items
std::map<configuration_keys, ConfigurationItem> & get_items(void){return items;};
/// Set the default values in the configuration
void set_defaults(void)
{
/* ***MAGIC WARNING**!!
* See http://stackoverflow.com/a/148610
* See http://stackoverflow.com/questions/147267/easy-way-to-use-variables-of-enum-types-as-string-in-c#202511
*/
#define X(Enum, String, Default) \
add_item(ConfigurationItem(Enum, Default));
CONFIGURATION_KEYS_ENUM
#undef X
};
};
/// *********************************************************
/// GETTERS
/// *********************************************************
/// Return the value of a boolean key from the configuration
bool get_config_bool(configuration_keys key);
double get_config_double(configuration_keys key);
std::string get_config_string(configuration_keys key);
#if !defined(SWIG) // Hide this for swig - Swig gets confused
void get_config_as_json(rapidjson::Document &doc);
#endif
/// Get values in the configuration based as json data in string format
std::string get_config_as_json_string();
/// *********************************************************
/// SETTERS
/// *********************************************************
void set_config_bool(configuration_keys key, bool val);
void set_config_double(configuration_keys key, double val);
void set_config_string(configuration_keys key, std::string val);
/// Set values in the configuration based on a json file
#if !defined(SWIG) // Hide this for swig - Swig gets confused
void set_config_json(rapidjson::Document &doc);
#endif
void set_config_as_json_string(std::string &s);
}
#endif // COOLPROP_CONFIGURATION