opm-simulators/opm/models/utils/parametersystem.hh
2024-08-12 15:40:28 +02:00

1231 lines
39 KiB
C++

// -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
// vi: set et ts=4 sw=4 sts=4:
/*
This file is part of the Open Porous Media project (OPM).
OPM is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
OPM 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with OPM. If not, see <http://www.gnu.org/licenses/>.
Consult the COPYING file in the top-level source directory of this
module for the precise wording of the license and the list of
copyright holders.
*/
/*!
* \file
*
* \brief This file provides the infrastructure to retrieve run-time parameters
*
* Internally, runtime parameters are implemented using
* Dune::ParameterTree with the default value taken from the parameter
* definition.
*/
#ifndef OPM_PARAMETER_SYSTEM_HH
#define OPM_PARAMETER_SYSTEM_HH
#include <opm/models/utils/propertysystem.hh>
#if HAVE_QUAD
#include <opm/material/common/quad.hpp>
#endif // HAVE_QUAD
#include <dune/common/classname.hh>
#include <dune/common/parametertree.hh>
#include <charconv>
#include <fstream>
#include <iostream>
#include <list>
#include <map>
#include <set>
#include <sstream>
#include <stdexcept>
#include <string>
#include <tuple>
#include <type_traits>
#include <unistd.h>
#include <sys/ioctl.h>
namespace Opm::Parameters {
namespace detail {
template <typename, class = void>
struct has_name : public std::false_type {};
template <typename T>
struct has_name<T, std::void_t<decltype(std::declval<T>().name)>>
: public std::true_type {};
//! get the name data member of a parameter
template<class Parameter>
auto getParamName()
{
if constexpr (has_name<Parameter>::value) {
return Parameter::name;
} else {
std::string paramName = Dune::className<Parameter>();
paramName.replace(0, std::strlen("Opm::Parameters::"), "");
const auto pos = paramName.find_first_of('<');
if (pos != std::string::npos) {
paramName.erase(pos);
}
return paramName;
}
}
}
struct ParamInfo
{
std::string paramName;
std::string paramTypeName;
std::string typeTagName;
std::string usageString;
std::string compileTimeValue;
bool isHidden;
bool operator==(const ParamInfo& other) const
{
return other.paramName == paramName
&& other.paramTypeName == paramTypeName
&& other.typeTagName == typeTagName
&& other.usageString == usageString;
}
};
/*!
* \ingroup Parameter
*
* \brief Retrieve a runtime parameter.
*
* The default value is specified via the property system.
*
* Example:
*
* \code
* // Retrieves value UpwindWeight, default
* // is taken from the property UpwindWeight
* ::Opm::Parameters::get<TypeTag, Properties::UpwindWeight>();
* \endcode
*/
template <class TypeTag, template<class,class> class Property>
auto get(bool errorIfNotRegistered = true);
/*!
* \ingroup Parameter
*
* \brief Retrieve a runtime parameter.
*
* The default value is specified in the parameter struct.
*
* Example:
*
* \code
* // Retrieves value UpwindWeight, default
* // is taken from the property UpwindWeight
* ::Opm::Parameters::get<::Opm::Parameters::UpwindWeight>();
* \endcode
*/
template <class Param>
auto Get(bool errorIfNotRegistered = true);
/*!
* \ingroup Parameter
*
* \brief Set a runtime parameter.
*
* Override the default value specified.
*
* Example:
*
* \code
* // Set the value UpwindWeight
* ::Opm::Parameters::Set<::Opm::Parameters::UpwindWeight>(3.0);
* \endcode
*/
template <class Param>
auto SetDefault(decltype(Param::value) new_value);
class ParamRegFinalizerBase_
{
public:
virtual ~ParamRegFinalizerBase_()
{}
virtual void retrieve() = 0;
};
template <class TypeTag, template<class,class> class Property>
class ParamRegFinalizerTT_ : public ParamRegFinalizerBase_
{
public:
void retrieve() override
{
// retrieve the parameter once to make sure that its value does
// not contain a syntax error.
std::ignore = get<TypeTag, Property>(/*errorIfNotRegistered=*/true);
}
};
template <class Param>
class ParamRegFinalizer_ : public ParamRegFinalizerBase_
{
public:
void retrieve() override
{
// retrieve the parameter once to make sure that its value does
// not contain a syntax error.
std::ignore = Get<Param>(/*errorIfNotRegistered=*/true);
}
};
struct MetaData
{
using type = Dune::ParameterTree;
static Dune::ParameterTree& tree()
{ return *storage_().tree; }
static std::map<std::string, ParamInfo>& mutableRegistry()
{ return storage_().registry; }
static const std::map<std::string, ParamInfo>& registry()
{ return storage_().registry; }
static std::list<std::unique_ptr<ParamRegFinalizerBase_>> &registrationFinalizers()
{ return storage_().finalizers; }
static bool& registrationOpen()
{ return storage_().registrationOpen; }
static void clear()
{
storage_().tree = std::make_unique<Dune::ParameterTree>();
storage_().finalizers.clear();
storage_().registrationOpen = true;
storage_().registry.clear();
}
private:
// this is not pretty, but handling these attributes as static variables inside
// member functions of the ParameterMetaData property class triggers a bug in clang
// 3.5's address sanitizer which causes these variables to be initialized multiple
// times...
struct Storage_
{
Storage_()
{
tree = std::make_unique<Dune::ParameterTree>();
registrationOpen = true;
}
std::unique_ptr<Dune::ParameterTree> tree;
std::map<std::string, ParamInfo> registry;
std::list<std::unique_ptr<ParamRegFinalizerBase_>> finalizers;
bool registrationOpen;
};
static Storage_& storage_()
{
static Storage_ obj;
return obj;
}
};
// function prototype declarations
void printParamUsage_(std::ostream& os, const ParamInfo& paramInfo);
void getFlattenedKeyList_(std::list<std::string>& dest,
const Dune::ParameterTree& tree,
const std::string& prefix = "");
inline std::string breakLines_(const std::string& msg,
int indentWidth,
int maxWidth)
{
std::string result;
int startInPos = 0;
int inPos = 0;
int lastBreakPos = 0;
int ttyPos = 0;
for (; inPos < int(msg.size()); ++ inPos, ++ ttyPos) {
if (msg[inPos] == '\n') {
result += msg.substr(startInPos, inPos - startInPos + 1);
startInPos = inPos + 1;
lastBreakPos = startInPos + 1;
// we need to use -1 here because ttyPos is incremented after the loop body
ttyPos = -1;
continue;
}
if (std::isspace(msg[inPos]))
lastBreakPos = inPos;
if (ttyPos >= maxWidth) {
if (lastBreakPos > startInPos) {
result += msg.substr(startInPos, lastBreakPos - startInPos);
startInPos = lastBreakPos + 1;
lastBreakPos = startInPos;
inPos = startInPos;
}
else {
result += msg.substr(startInPos, inPos - startInPos);
startInPos = inPos;
lastBreakPos = startInPos;
inPos = startInPos;
}
result += "\n";
for (int i = 0; i < indentWidth; ++i)
result += " ";
ttyPos = indentWidth;
}
}
result += msg.substr(startInPos);
return result;
}
inline int getTtyWidth_()
{
int ttyWidth = 10*1000; // effectively do not break lines at all.
if (isatty(STDOUT_FILENO)) {
#if defined TIOCGWINSZ
// This is a bit too linux specific, IMO. let's do it anyway
struct winsize ttySize;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &ttySize);
ttyWidth = std::max<int>(80, ttySize.ws_col);
#else
// default for systems that do not implement the TIOCGWINSZ ioctl
ttyWidth = 100;
#endif
}
return ttyWidth;
}
inline void printParamUsage_(std::ostream& os, const ParamInfo& paramInfo)
{
std::string paramMessage, paramType, paramDescription;
int ttyWidth = getTtyWidth_();
// convert the CamelCase name to a command line --parameter-name.
std::string cmdLineName = "-";
const std::string camelCaseName = paramInfo.paramName;
for (unsigned i = 0; i < camelCaseName.size(); ++i) {
if (isupper(camelCaseName[i]))
cmdLineName += "-";
cmdLineName += static_cast<char>(std::tolower(camelCaseName[i]));
}
// assemble the printed output
paramMessage = " ";
paramMessage += cmdLineName;
// add the =VALUE_TYPE part
bool isString = false;
if (paramInfo.paramTypeName == Dune::className<std::string>()
|| paramInfo.paramTypeName == "const char *")
{
paramMessage += "=STRING";
isString = true;
}
else if (paramInfo.paramTypeName == Dune::className<float>()
|| paramInfo.paramTypeName == Dune::className<double>()
|| paramInfo.paramTypeName == Dune::className<long double>()
#if HAVE_QUAD
|| paramInfo.paramTypeName == Dune::className<quad>()
#endif // HAVE_QUAD
)
paramMessage += "=SCALAR";
else if (paramInfo.paramTypeName == Dune::className<int>()
|| paramInfo.paramTypeName == Dune::className<unsigned int>()
|| paramInfo.paramTypeName == Dune::className<short>()
|| paramInfo.paramTypeName == Dune::className<unsigned short>())
paramMessage += "=INTEGER";
else if (paramInfo.paramTypeName == Dune::className<bool>())
paramMessage += "=BOOLEAN";
else if (paramInfo.paramTypeName.empty()) {
// the parameter is a flag. Do nothing!
}
else {
// unknown type
paramMessage += "=VALUE";
}
// fill up the up help string to the 50th character
paramMessage += " ";
while (paramMessage.size() < 50)
paramMessage += " ";
// append the parameter usage string.
paramMessage += paramInfo.usageString;
// add the default value
if (!paramInfo.paramTypeName.empty()) {
if (paramMessage.back() != '.')
paramMessage += '.';
paramMessage += " Default: ";
if (paramInfo.paramTypeName == "bool") {
if (paramInfo.compileTimeValue == "0")
paramMessage += "false";
else
paramMessage += "true";
}
else if (isString) {
paramMessage += "\"";
paramMessage += paramInfo.compileTimeValue;
paramMessage += "\"";
}
else
paramMessage += paramInfo.compileTimeValue;
}
paramMessage = breakLines_(paramMessage, /*indent=*/52, ttyWidth);
paramMessage += "\n";
// print everything
os << paramMessage;
}
inline void getFlattenedKeyList_(std::list<std::string>& dest,
const Dune::ParameterTree& tree,
const std::string& prefix)
{
// add the keys of the current sub-structure
for (const auto& valueKey : tree.getValueKeys()) {
std::string newKey(prefix + valueKey);
dest.push_back(newKey);
}
// recursively add all substructure keys
for (const auto& subKey : tree.getSubKeys()) {
std::string newPrefix(prefix + subKey + '.');
getFlattenedKeyList_(dest, tree.sub(subKey), newPrefix);
}
}
// print the values of a list of parameters
inline void printParamList_(std::ostream& os,
const std::list<std::string>& keyList,
bool printDefaults = false)
{
const Dune::ParameterTree& tree = MetaData::tree();
for (const auto& key : keyList) {
const auto& paramInfo = MetaData::registry().at(key);
const std::string& defaultValue = paramInfo.compileTimeValue;
std::string value = defaultValue;
if (tree.hasKey(key))
value = tree.get(key, "");
os << key << "=\"" << value << "\"";
if (printDefaults)
os << " # default: \"" << defaultValue << "\"";
os << "\n";
}
}
//! \endcond
/*!
* \ingroup Parameter
* \brief Print a usage message for all run-time parameters.
*
* \param helpPreamble The string that is printed after the error message and before the
* list of parameters.
* \param errorMsg The error message to be printed, if any
* \param os The \c std::ostream which should be used.
*/
inline void printUsage(const std::string& helpPreamble,
const std::string& errorMsg = "",
std::ostream& os = std::cerr,
const bool showAll = false)
{
if (!errorMsg.empty()) {
os << errorMsg << "\n\n";
}
os << breakLines_(helpPreamble, /*indent=*/2, /*maxWidth=*/getTtyWidth_());
os << "\n";
os << "Recognized options:\n";
if (!helpPreamble.empty()) {
ParamInfo pInfo;
pInfo.paramName = "h,--help";
pInfo.usageString = "Print this help message and exit";
printParamUsage_(os, pInfo);
pInfo.paramName = "-help-all";
pInfo.usageString = "Print all parameters, including obsolete, hidden and deprecated ones.";
printParamUsage_(os, pInfo);
}
for (const auto& param : MetaData::registry()) {
if (showAll || !param.second.isHidden)
printParamUsage_(os, param.second);
}
}
/// \cond 0
inline int noPositionalParameters_(std::set<std::string>&,
std::string& errorMsg,
int,
const char** argv,
int paramIdx,
int)
{
errorMsg = std::string("Illegal parameter \"")+argv[paramIdx]+"\".";
return 0;
}
/// \endcond
inline void removeLeadingSpace_(std::string& s)
{
unsigned i;
for (i = 0; i < s.size(); ++ i)
if (!std::isspace(s[i]))
break;
s = s.substr(i);
}
inline std::string transformKey_(const std::string& s,
bool capitalizeFirstLetter = true,
const std::string& errorPrefix = "")
{
std::string result;
if (s.empty())
throw std::runtime_error(errorPrefix+"Empty parameter names are invalid");
if (!std::isalpha(s[0]))
throw std::runtime_error(errorPrefix+"Parameter name '" + s + "' is invalid: First character must be a letter");
if (capitalizeFirstLetter)
result += static_cast<char>(std::toupper(s[0]));
else
result += s[0];
for (unsigned i = 1; i < s.size(); ++i) {
if (s[i] == '-') {
++ i;
if (s.size() <= i || !std::isalpha(s[i]))
throw std::runtime_error(errorPrefix+"Invalid parameter name '" + s + "'");
result += static_cast<char>(std::toupper(s[i]));
}
else if (!std::isalnum(s[i]))
throw std::runtime_error(errorPrefix+"Invalid parameter name '" + s + "'");
else
result += s[i];
}
return result;
}
inline std::string parseKey_(std::string& s)
{
unsigned i;
for (i = 0; i < s.size(); ++ i)
if (std::isspace(s[i]) || s[i] == '=')
break;
std::string ret = s.substr(0, i);
s = s.substr(i);
return ret;
}
// parse a quoted string
inline std::string parseQuotedValue_(std::string& s, const std::string& errorPrefix)
{
if (s.empty() || s[0] != '"')
throw std::runtime_error(errorPrefix+"Expected quoted string");
std::string result;
unsigned i = 1;
for (; i < s.size(); ++i) {
// handle escape characters
if (s[i] == '\\') {
++ i;
if (s.size() <= i)
throw std::runtime_error(errorPrefix+"Unexpected end of quoted string");
if (s[i] == 'n')
result += '\n';
else if (s[i] == 'r')
result += '\r';
else if (s[i] == 't')
result += '\t';
else if (s[i] == '"')
result += '"';
else if (s[i] == '\\')
result += '\\';
else
throw std::runtime_error(errorPrefix+"Unknown escape character '\\" + s[i] + "'");
}
else if (s[i] == '"')
break;
else
result += s[i];
}
s = s.substr(i+1);
return result;
}
inline std::string parseUnquotedValue_(std::string& s, const std::string&)
{
unsigned i;
for (i = 0; i < s.size(); ++ i)
if (std::isspace(s[i]))
break;
std::string ret = s.substr(0, i);
s = s.substr(i);
return ret;
}
/*!
* \ingroup Parameter
* \brief Parse the parameters provided on the command line.
*
* This function does some basic syntax checks.
*
* \param argc The number of parameters passed by the operating system to the
* main() function
* \param argv The array of strings passed by the operating system to the main()
* function
* \param helpPreamble If non-empty, the --help and -h parameters will be recognized and
* the content of the string will be printed before the list of
* command line parameters
* \return Empty string if everything worked out. Otherwise the thing that could
* not be read.
*/
template <class PositionalArgumentCallback>
std::string parseCommandLineOptions(int argc,
const char **argv,
const std::string& helpPreamble = "",
const PositionalArgumentCallback& posArgCallback = noPositionalParameters_)
{
// handle the "--help" parameter
if (!helpPreamble.empty()) {
for (int i = 1; i < argc; ++i) {
if (std::string("-h") == argv[i]
|| std::string("--help") == argv[i]) {
printUsage(helpPreamble, /*errorMsg=*/"", std::cout);
return "Help called";
}
if (std::string("--help-all") == argv[i]) {
printUsage(helpPreamble, /*errorMsg=*/"", std::cout, true);
return "Help called";
}
}
}
std::set<std::string> seenKeys;
int numPositionalParams = 0;
for (int i = 1; i < argc; ++i) {
// All non-positional command line options need to start with '-'
if (strlen(argv[i]) < 4
|| argv[i][0] != '-'
|| argv[i][1] != '-')
{
std::string errorMsg;
int numHandled = posArgCallback(seenKeys, errorMsg, argc, argv,
i, numPositionalParams);
if (numHandled < 1) {
std::ostringstream oss;
if (!helpPreamble.empty())
printUsage(helpPreamble, errorMsg, std::cerr);
return errorMsg;
}
else {
++ numPositionalParams;
i += numHandled - 1;
continue;
}
}
std::string paramName, paramValue;
// read a --my-opt=abc option. This gets transformed
// into the parameter "MyOpt" with the value being
// "abc"
// There is nothing after the '-'
if (argv[i][2] == 0 || !std::isalpha(argv[i][2])) {
std::ostringstream oss;
oss << "Parameter name of argument " << i
<< " ('" << argv[i] << "') "
<< "is invalid because it does not start with a letter.";
if (!helpPreamble.empty())
printUsage(helpPreamble, oss.str(), std::cerr);
return oss.str();
}
// copy everything after the "--" into a separate string
std::string s(argv[i] + 2);
// parse argument
paramName = transformKey_(parseKey_(s), /*capitalizeFirst=*/true);
if (seenKeys.count(paramName) > 0) {
std::string msg =
std::string("Parameter '")+paramName+"' specified multiple times as a "
"command line parameter";
if (!helpPreamble.empty())
printUsage(helpPreamble, msg, std::cerr);
return msg;
}
seenKeys.insert(paramName);
if (s.empty() || s[0] != '=') {
std::string msg =
std::string("Parameter '")+paramName+"' is missing a value. "
+" Please use "+argv[i]+"=value.";
if (!helpPreamble.empty())
printUsage(helpPreamble, msg, std::cerr);
return msg;
}
paramValue = s.substr(1);
// Put the key=value pair into the parameter tree
MetaData::tree()[paramName] = paramValue;
}
return "";
}
/*!
* \ingroup Parameter
* \brief Read the parameters from an INI-style file.
*
* This function does some basic syntax checks.
*/
inline void parseParameterFile(const std::string& fileName, bool overwrite = true)
{
std::set<std::string> seenKeys;
std::ifstream ifs(fileName);
unsigned curLineNum = 0;
while (ifs) {
// string and file processing in c++ is quite blunt!
std::string curLine;
std::getline(ifs, curLine);
curLineNum += 1;
std::string errorPrefix = fileName+":"+std::to_string(curLineNum)+": ";
// strip leading white space
removeLeadingSpace_(curLine);
// ignore empty and comment lines
if (curLine.empty() || curLine[0] == '#' || curLine[0] == ';')
continue;
// TODO (?): support for parameter groups.
// find the "key" of the key=value pair
std::string key = parseKey_(curLine);
std::string canonicalKey = transformKey_(key, /*capitalizeFirst=*/true, errorPrefix);
if (seenKeys.count(canonicalKey) > 0)
throw std::runtime_error(errorPrefix+"Parameter '"+canonicalKey+"' seen multiple times in the same file");
seenKeys.insert(canonicalKey);
// deal with the equals sign
removeLeadingSpace_(curLine);
if (curLine.empty() || curLine[0] != '=')
std::runtime_error(errorPrefix+"Syntax error, expecting 'key=value'");
curLine = curLine.substr(1);
removeLeadingSpace_(curLine);
if (curLine.empty() || curLine[0] == '#' || curLine[0] == ';')
std::runtime_error(errorPrefix+"Syntax error, expecting 'key=value'");
// get the value
std::string value;
if (curLine[0] == '"')
value = parseQuotedValue_(curLine, errorPrefix);
else
value = parseUnquotedValue_(curLine, errorPrefix);
// ignore trailing comments
removeLeadingSpace_(curLine);
if (!curLine.empty() && curLine[0] != '#' && curLine[0] != ';')
std::runtime_error(errorPrefix+"Syntax error, expecting 'key=value'");
// all went well, add the parameter to the database object
if (overwrite || !MetaData::tree().hasKey(canonicalKey)) {
MetaData::tree()[canonicalKey] = value;
}
}
}
/*!
* \ingroup Parameter
* \brief Print values of the run-time parameters.
*
* \param os The \c std::ostream on which the message should be printed
*/
inline void printValues(std::ostream& os = std::cout)
{
std::list<std::string> runTimeAllKeyList;
std::list<std::string> runTimeKeyList;
std::list<std::string> unknownKeyList;
getFlattenedKeyList_(runTimeAllKeyList, MetaData::tree());
for (const auto& key : runTimeAllKeyList) {
if (MetaData::registry().find(key) == MetaData::registry().end()) {
// key was not registered by the program!
unknownKeyList.push_back(key);
}
else {
// the key was specified at run-time
runTimeKeyList.push_back(key);
}
}
// loop over all registered parameters
std::list<std::string> compileTimeKeyList;
for (const auto& reg : MetaData::registry()) {
// check whether the key was specified at run-time
if (MetaData::tree().hasKey(reg.first)) {
continue;
} else {
compileTimeKeyList.push_back(reg.first);
}
}
// report the values of all registered (and unregistered)
// parameters
if (runTimeKeyList.size() > 0) {
os << "# [known parameters which were specified at run-time]\n";
printParamList_(os, runTimeKeyList, /*printDefaults=*/true);
}
if (compileTimeKeyList.size() > 0) {
os << "# [parameters which were specified at compile-time]\n";
printParamList_(os, compileTimeKeyList, /*printDefaults=*/false);
}
if (unknownKeyList.size() > 0) {
os << "# [unused run-time specified parameters]\n";
for (const auto& unused : unknownKeyList) {
os << unused << "=\"" << MetaData::tree().get(unused, "") << "\"\n" << std::flush;
}
}
}
/*!
* \ingroup Parameter
* \brief Print the list of unused run-time parameters.
*
* \param os The \c std::ostream on which the message should be printed
*
* \return true if something was printed
*/
inline bool printUnused(std::ostream& os = std::cout)
{
std::list<std::string> runTimeAllKeyList;
std::list<std::string> unknownKeyList;
getFlattenedKeyList_(runTimeAllKeyList, MetaData::tree());
for (const auto& key : runTimeAllKeyList) {
if (MetaData::registry().find(key) == MetaData::registry().end()) {
// key was not registered by the program!
unknownKeyList.push_back(key);
}
}
if (unknownKeyList.size() > 0) {
os << "# [unused run-time specified parameters]\n";
for (const auto& unused : unknownKeyList) {
os << unused << "=\""
<< MetaData::tree().get(unused, "") << "\"\n" << std::flush;
}
return true;
}
return false;
}
template <class TypeTag, template<class,class> class Param>
auto get(bool errorIfNotRegistered)
{
const std::string paramName = getPropName<TypeTag, Param>();
const auto defaultValue = getPropValue<TypeTag, Param>();
using ParamType = std::conditional_t<std::is_same_v<decltype(defaultValue),
const char* const>, std::string,
std::remove_const_t<decltype(defaultValue)>>;
if (errorIfNotRegistered) {
if (MetaData::registrationOpen())
throw std::runtime_error("Parameters can only retrieved after _all_ of them have "
"been registered.");
if (MetaData::registry().find(paramName) == MetaData::registry().end()) {
throw std::runtime_error("Accessing parameter " + paramName
+" without prior registration is not allowed.");
}
}
// prefix the parameter name by the model's GroupName. E.g. If
// the model specifies its group name to be 'Stokes', in an
// INI file this would result in something like:
//
// [Stokes]
// NewtonWriteConvergence = true
// retrieve actual parameter from the parameter tree
return MetaData::tree().template get<ParamType>(paramName, defaultValue);
}
template <class Param>
auto Get(bool errorIfNotRegistered)
{
const std::string paramName = detail::getParamName<Param>();
if (errorIfNotRegistered) {
if (MetaData::registrationOpen())
throw std::runtime_error("Parameters can only retrieved after _all_ of them have "
"been registered.");
if (MetaData::registry().find(paramName) == MetaData::registry().end()) {
throw std::runtime_error("Accessing parameter " + paramName
+" without prior registration is not allowed.");
}
}
using ParamType = std::conditional_t<std::is_same_v<decltype(Param::value),
const char* const>, std::string,
std::remove_const_t<decltype(Param::value)>>;
ParamType defaultValue = Param::value;
const std::string& defVal = MetaData::mutableRegistry()[paramName].compileTimeValue;
if constexpr (std::is_same_v<ParamType, std::string>) {
defaultValue = defVal;
}
else if constexpr (std::is_same_v<ParamType, bool>) {
defaultValue = defVal == "1";
}
#if HAVE_QUAD
else if constexpr (std::is_same_v<ParamType, quad>) {
defaultValue = std::strtold(defVal.data(), nullptr);
}
#endif
else {
std::from_chars(defVal.data(), defVal.data() + defVal.size(), defaultValue);
}
// prefix the parameter name by the model's GroupName. E.g. If
// the model specifies its group name to be 'Stokes', in an
// INI file this would result in something like:
//
// [Stokes]
// NewtonWriteConvergence = true
// retrieve actual parameter from the parameter tree
return MetaData::tree().template get<ParamType>(paramName, defaultValue);
}
template <class Param>
auto SetDefault(decltype(Param::value) new_value)
{
const std::string paramName = detail::getParamName<Param>();
if (MetaData::registry().find(paramName) == MetaData::registry().end()) {
throw std::runtime_error("Accessing parameter " + paramName +
" without prior registration is not allowed.");
}
std::ostringstream oss;
oss << new_value;
MetaData::mutableRegistry()[paramName].compileTimeValue = oss.str();
}
/*!
* \brief Retrieves the lists of parameters specified at runtime and their values.
*
* The two arguments besides the TypeTag are assumed to be STL containers which store
* std::pair<std::string, std::string>.
*/
template <class Container>
void getLists(Container& usedParams, Container& unusedParams)
{
usedParams.clear();
unusedParams.clear();
if (MetaData::registrationOpen()) {
throw std::runtime_error("Parameter lists can only retrieved after _all_ of them have "
"been registered.");
}
// get all parameter keys
std::list<std::string> allKeysList;
getFlattenedKeyList_(allKeysList, MetaData::tree());
for (const auto& key : allKeysList) {
if (MetaData::registry().find(key) == MetaData::registry().end()) {
// key was not registered
unusedParams.emplace_back(key, MetaData::tree()[key]);
}
else {
// key was registered
usedParams.emplace_back(key, MetaData::tree()[key]);
}
}
}
inline void reset()
{
MetaData::clear();
}
/*!
* \brief Returns true if a parameter has been specified at runtime, false
* otherwise.
*
* If the parameter in question has not been registered, this throws an exception.
*/
template <class TypeTag, template<class, class> class Param>
bool isSet(bool errorIfNotRegistered = true)
{
const std::string paramName = getPropName<TypeTag,Param>();
if (errorIfNotRegistered) {
if (MetaData::registrationOpen()) {
throw std::runtime_error("Parameters can only checked after _all_ of them have "
"been registered.");
}
if (MetaData::registry().find(paramName) == MetaData::registry().end())
throw std::runtime_error("Accessing parameter " + std::string(paramName) +
" without prior registration is not allowed.");
}
// check whether the parameter is in the parameter tree
return MetaData::tree().hasKey(paramName);
}
/*!
* \brief Returns true if a parameter has been specified at runtime, false
* otherwise.
*
* If the parameter in question has not been registered, this throws an exception.
*/
template <class Param>
bool IsSet(bool errorIfNotRegistered = true)
{
const std::string paramName = detail::getParamName<Param>();
if (errorIfNotRegistered) {
if (MetaData::registrationOpen()) {
throw std::runtime_error("Parameters can only checked after _all_ of them have "
"been registered.");
}
if (MetaData::registry().find(paramName) == MetaData::registry().end())
throw std::runtime_error("Accessing parameter " + std::string(paramName) +
" without prior registration is not allowed.");
}
// check whether the parameter is in the parameter tree
return MetaData::tree().hasKey(paramName);
}
/*!
* \ingroup Parameter
*
* \brief Register a run-time parameter.
*
* In OPM, parameters can only be used after they have been
* registered.
*
* Example:
*
* \code
* // Registers a run-time parameter "UpwindWeight"
* and the description "Relative weight of the upwind node."
* registerParam<TypeTag,UpwindWeight>("Relative weight of the upwind node.");
* \endcode
*/
template <class TypeTag, template<class,class> class Param>
void registerParam(const char* usageString)
{
const std::string paramName = getPropName<TypeTag,Param>();
if (!MetaData::registrationOpen()) {
throw std::logic_error("Parameter registration was already closed before "
"the parameter '" + paramName + "' was registered.");
}
const auto defaultValue = getPropValue<TypeTag, Param>();
using ParamType = std::conditional_t<std::is_same_v<decltype(defaultValue),
const char* const>, std::string,
std::remove_const_t<decltype(defaultValue)>>;
MetaData::registrationFinalizers().push_back(
std::make_unique<ParamRegFinalizerTT_<TypeTag, Param>>());
ParamInfo paramInfo;
paramInfo.paramName = paramName;
paramInfo.paramTypeName = Dune::className<ParamType>();
std::string tmp = Dune::className<TypeTag>();
tmp.replace(0, strlen("Opm::Properties::TTag::"), "");
paramInfo.usageString = usageString;
std::ostringstream oss;
oss << defaultValue;
paramInfo.compileTimeValue = oss.str();
paramInfo.isHidden = false;
if (MetaData::registry().find(paramName) != MetaData::registry().end()) {
// allow to register a parameter twice, but only if the
// parameter name, type and usage string are exactly the same.
if (MetaData::registry().at(paramName) == paramInfo) {
return;
}
throw std::logic_error("Parameter " + paramName
+" registered twice with non-matching characteristics.");
}
MetaData::mutableRegistry()[paramName] = paramInfo;
}
/*!
* \ingroup Parameter
*
* \brief Register a run-time parameter.
*
* In OPM, parameters can only be used after they have been
* registered.
*
* Example:
*
* \code
* // Registers a run-time parameter "UpwindWeight"
* and the description "Relative weight of the upwind node."
* registerParam<TypeTag,UpwindWeight>("Relative weight of the upwind node.");
* \endcode
*/
template <class Param>
void Register(const char* usageString)
{
const std::string paramName = detail::getParamName<Param>();
if (!MetaData::registrationOpen()) {
throw std::logic_error("Parameter registration was already closed before "
"the parameter '" + paramName + "' was registered.");
}
const auto defaultValue = Param::value;
using ParamType = std::conditional_t<std::is_same_v<decltype(defaultValue),
const char* const>, std::string,
std::remove_const_t<decltype(defaultValue)>>;
MetaData::registrationFinalizers().push_back(
std::make_unique<ParamRegFinalizer_<Param>>());
ParamInfo paramInfo;
paramInfo.paramName = paramName;
paramInfo.paramTypeName = Dune::className<ParamType>();
paramInfo.usageString = usageString;
std::ostringstream oss;
oss << defaultValue;
paramInfo.compileTimeValue = oss.str();
paramInfo.isHidden = false;
if (MetaData::registry().find(paramName) != MetaData::registry().end()) {
// allow to register a parameter twice, but only if the
// parameter name, type and usage string are exactly the same.
if (MetaData::registry().at(paramName) == paramInfo) {
return;
}
throw std::logic_error("Parameter " + paramName
+" registered twice with non-matching characteristics.");
}
MetaData::mutableRegistry()[paramName] = paramInfo;
}
/*!
* \brief Indicate that a given parameter should not be mentioned in the help message
*
* This allows to deal with unused parameters
*/
template <class TypeTag, template<class,class> class Param>
void hideParam()
{
const std::string paramName = getPropName<TypeTag,Param>();
if (!MetaData::registrationOpen()) {
throw std::logic_error("Parameter '" +paramName + "' declared as hidden"
" when parameter registration was already closed.");
}
auto paramInfoIt = MetaData::mutableRegistry().find(paramName);
if (paramInfoIt == MetaData::mutableRegistry().end()) {
throw std::logic_error("Tried to declare unknown parameter '"
+ paramName + "' hidden.");
}
auto& paramInfo = paramInfoIt->second;
paramInfo.isHidden = true;
}
/*!
* \brief Indicate that a given parameter should not be mentioned in the help message
*
* This allows to deal with unused parameters
*/
template <class Param>
void Hide()
{
const std::string paramName = detail::getParamName<Param>();
if (!MetaData::registrationOpen()) {
throw std::logic_error("Parameter '" +paramName + "' declared as hidden"
" when parameter registration was already closed.");
}
auto paramInfoIt = MetaData::mutableRegistry().find(paramName);
if (paramInfoIt == MetaData::mutableRegistry().end()) {
throw std::logic_error("Tried to declare unknown parameter '"
+ paramName + "' hidden.");
}
auto& paramInfo = paramInfoIt->second;
paramInfo.isHidden = true;
}
/*!
* \brief Indicate that all parameters are registered for a given type tag.
*
* If registerParam is called after the invocation of
* \c endParamRegistration, a <tt>std::logic_error</tt> exception
* will be thrown.
*/
inline void endRegistration()
{
if (!MetaData::registrationOpen()) {
throw std::logic_error("Parameter registration was already closed. It is only possible "
"to close it once.");
}
MetaData::registrationOpen() = false;
// loop over all parameters and retrieve their values to make sure
// that there is no syntax error
for (const auto& param : MetaData::registrationFinalizers()) {
param->retrieve();
}
MetaData::registrationFinalizers().clear();
}
//! \endcond
} // namespace Opm::Parameters
#endif // OPM_PARAMETER_SYSTEM_HH