trick/trick_source/sim_services/MonteCarloGeneration/mc_variable.cc
ddj116 483cacfafd
MonteCarloGenerate: Provide more metadata on dispersions (#1608)
* Add type, dispersion, min_value, max_value and other relevant internal
  members of MonteCarloVariable* classes to the output of
  MonteCarlo_Meta_data_output. Motivation is for users wanting to post-process
  dispersion parameters used during generation of runs
* Protect against invalid memory access when length of values is zero in
  MonteCarloVariableRandomStringSet::generate_assignment(). Add a new
  verif sim warning case to cover these new lines
* Update new verif data for SIM_mc_generation to support these changes

Closes #1574

Co-authored-by: Dan Jordan <daniel.d.jordan@nasa.gov>
2023-12-01 10:09:17 -06:00

164 lines
5.3 KiB
C++

/*******************************TRICK HEADER******************************
PURPOSE: ( Base class for the MonteCarloVariable type)
PROGRAMMERS:
(((Gary Turner) (OSR) (October 2019) (Antares) (Initial)))
(((Isaac Reaves) (NASA) (November 2022) (Integration into Trick Core)))
**********************************************************************/
#include "trick/mc_variable.hh"
#include "trick/message_proto.h"
#include "trick/message_type.h"
#include "trick/exec_proto.h"
#include <sstream> // ostringstream
/*****************************************************************************
Constructor
*****************************************************************************/
MonteCarloVariable::MonteCarloVariable(
const std::string & var_name)
:
units(),
include_in_summary(true),
variable_name(var_name),
assignment(),
command(),
type(Undefined)
{}
/*****************************************************************************
insert_units
Purpose:(Provides a unit-conversion insertion into an established command)
*****************************************************************************/
void
MonteCarloVariable::insert_units()
{
// If no units specified, nothing to do here.
if (units.empty()) {
return;
}
// Unreachable code in current implementation. insert_units is only ever
// called immediately after generate_command, which cannot possibly generate
// an empty string.
if (command.empty()) {
std::string message =
std::string("File: ") + __FILE__ + ", Line: " +
std::to_string(__LINE__) + ", Sequencing error\nVariable " +
variable_name.c_str() + " has units specified (" + units.c_str() +
") but no command generated.\nThe command must be generated before " +
"applying units.Will attempt to generate the command to "
"avoid terminal fault but this\nmay not be what was intended.\n";
message_publish(MSG_ERROR, message.c_str());
}
// parse the command
size_t pos_equ = command.find("=");
if (pos_equ == std::string::npos) {
// Unreachable code in current implementation. insert_units is only ever
// called immediately after generate_command, and even if all else fails,
// generate_command produces a command with an = symbol in it, So an =
// will always be found.
std::string message =
std::string("File: ") + __FILE__ + ", Line: " +
std::to_string(__LINE__) + " Invalid command\nFor variable " +
variable_name.c_str() + ", the command is poorly formed.\nCannot " +
"apply units to this command.\n";
message_publish(MSG_ERROR, message.c_str());
exec_terminate_with_return(1, __FILE__, __LINE__, message.c_str());
return;
}
// TODO: Pick a unit-conversion mechanism
// Right now, the only one available is Trick:
trick_units( pos_equ+1);
}
/*****************************************************************************
trick_units
Purpose:(inserts the Trick unit conversion mechanism into an established
command string.)
*****************************************************************************/
void
MonteCarloVariable::trick_units(
size_t insertion_pt)
{
command.insert(insertion_pt, " trick.attach_units(\"" + units + "\",");
command.append(")");
}
/*****************************************************************************
generate_assignment_internal
Purpose:()
*****************************************************************************/
void
MonteCarloVariable::assign_double(
double value)
{
std::ostringstream ostring;
ostring.precision(16);
ostring << value;
assignment = ostring.str();
generate_command();
insert_units();
}
/****************************************************************************/
void
MonteCarloVariable::assign_int(
int value)
{
assignment = std::to_string(value);
generate_command();
insert_units();
}
/****************************************************************************/
void
MonteCarloVariable::generate_command()
{
command = "\n" + variable_name + " = " + assignment;
}
/*****************************************************************************
get_type_str
Purpose:(Return the type of this variable as string. Meant to be overridden
by derived classes)
*****************************************************************************/
std::string MonteCarloVariable::get_type_str() const
{
switch (get_type()) {
// Unreachable case in current implementation.
// All current variable classes have been given a "type"
default:
return(std::string("Undefined_type"));
break;
case MonteCarloVariable::Calculated:
return(std::string("Calculated"));
break;
case MonteCarloVariable::Constant:
return(std::string("Constant"));
break;
case MonteCarloVariable::Execute:
return(std::string("Execute"));
break;
case MonteCarloVariable::Prescribed:
return(std::string("Prescribed"));
break;
case MonteCarloVariable::Random:
return(std::string("Random"));
break;
}
}
/*****************************************************************************
summarize_variable
Purpose:(Provide a string summarizing the attributes of this MonteCarloVariable)
*****************************************************************************/
std::string MonteCarloVariable::summarize_variable() const
{
std::ostringstream ss;
ss << variable_name << std::string(": type=") << get_type_str();
return (ss.str());
}