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#ifndef STORM_SETTINGS_OPTION_H_
#define STORM_SETTINGS_OPTION_H_
#include <iostream>
#include <string>
#include <cstdint>
#include <cctype>
#include <vector>
#include <memory>
#include <algorithm>
#include <unordered_set>
#include "ArgumentType.h"
#include "ArgumentBase.h"
#include "Argument.h"
#include "src/exceptions/ExceptionMacros.h"
#include "src/exceptions/IllegalArgumentException.h"
#include "src/exceptions/OptionUnificationException.h"
namespace storm {
namespace settings {
// Forward-declare settings manager and module settings classes.
class SettingsManager;
namespace modules {
class ModuleSettings;
}
/*!
* This class represents one command-line option.
*/
class Option {
public:
// Declare settings manager and module settings classes as friends.
friend class SettingsManager;
friend class modules::ModuleSettings;
/*!
* Creates an option with the given parameters.
*
* @param moduleName The module to which this option belongs.
* @param longOptionName The long option name.
* @param optionDescription The description of the option.
* @param isOptionRequired Sets whether the option is required to appear.
* @param requireModulePrefix A flag that indicates whether this option requires to be prefixed with the
* module name.
* @param optionArguments The arguments of the option.
*/
Option(std::string const& moduleName, std::string const& longOptionName, std::string const& optionDescription, bool isOptionRequired, bool requireModulePrefix, std::vector<std::shared_ptr<ArgumentBase>> const& optionArguments = std::vector<std::shared_ptr<ArgumentBase>>()) : Option(moduleName, longOptionName, "", false, optionDescription, isOptionRequired, requireModulePrefix, optionArguments) {
// Intentionally left empty.
}
/*!
* Creates an option with the given parameters.
*
* @param moduleName The module to which this option belongs.
* @param longOptionName The long option name.
* @param shortOptionName The short option name.
* @param optionDescription The description of the option.
* @param isOptionRequired Sets whether the option is required to appear.
* @param requireModulePrefix A flag that indicates whether this option requires to be prefixed with the
* module name.
* @param optionArguments The arguments of the option.
*/
Option(std::string const& moduleName, std::string const& longOptionName, std::string const& shortOptionName, std::string const& optionDescription, bool isOptionRequired, bool requireModulePrefix, std::vector<std::shared_ptr<ArgumentBase>> const& optionArguments = std::vector<std::shared_ptr<ArgumentBase>>()) : Option(moduleName, longOptionName, shortOptionName, true, optionDescription, isOptionRequired, requireModulePrefix, optionArguments) {
// Intentionally left empty.
}
/*!
* Checks whether the given option is compatible with the current one. If not, an exception is thrown.
*
* @param other The other option with which to check compatibility.
* @return True iff the given argument is compatible with the current one.
*/
bool isCompatibleWith(Option const& other) {
LOG_THROW(this->getArgumentCount() == other.getArgumentCount(), storm::exceptions::OptionUnificationException, "Unable to unify two options, because their argument count differs.");
for(size_t i = 0; i != this->arguments.size(); i++) {
ArgumentBase const& firstArgument = this->getArgument(i);
ArgumentBase const& secondArgument = other.getArgument(i);
LOG_THROW(firstArgument.getType() == secondArgument.getType(), storm::exceptions::OptionUnificationException, "Unable to unify two options, because their arguments are incompatible.");
switch (firstArgument.getType()) {
case ArgumentType::String:
static_cast<storm::settings::Argument<std::string> const&>(firstArgument).isCompatibleWith(static_cast<storm::settings::Argument<std::string> const&>(secondArgument));
break;
case ArgumentType::Integer:
static_cast<storm::settings::Argument<int_fast64_t> const&>(firstArgument).isCompatibleWith(static_cast<storm::settings::Argument<int_fast64_t> const&>(secondArgument));
break;
case ArgumentType::UnsignedInteger:
static_cast<storm::settings::Argument<uint_fast64_t> const&>(firstArgument).isCompatibleWith(static_cast<storm::settings::Argument<uint_fast64_t> const&>(secondArgument));
break;
case ArgumentType::Double:
static_cast<storm::settings::Argument<double> const&>(firstArgument).isCompatibleWith(static_cast<storm::settings::Argument<double> const&>(secondArgument));
break;
case ArgumentType::Boolean:
static_cast<storm::settings::Argument<bool> const&>(firstArgument).isCompatibleWith(static_cast<storm::settings::Argument<bool> const&>(secondArgument));
break;
}
}
return true;
}
/*!
* Retrieves the argument count this option expects.
*
* @return The argument count of this option.
*/
uint_fast64_t getArgumentCount() const {
return this->arguments.size();
}
/*!
* Retrieves the i-th argument of this option.
*
* @param argumentIndex The index of the argument to retrieve.
* @return The i-th argument of this option.
*/
ArgumentBase const& getArgument(uint_fast64_t argumentIndex) const {
LOG_THROW(argumentIndex < this->getArgumentCount(), storm::exceptions::IllegalArgumentException, "Index of argument is out of bounds.");
return *this->arguments.at(argumentIndex);
}
/*!
* Returns a reference to the argument with the specified long name.
*
* @param argumentName The name of the argument to retrieve.
* @return The argument with the given name.
*/
ArgumentBase const& getArgumentByName(std::string const& argumentName) const {
auto argumentIterator = this->argumentNameMap.find(argumentName);
LOG_THROW(argumentIterator != this->argumentNameMap.end(), storm::exceptions::IllegalArgumentException, "Unable to retrieve argument with unknown name " << argumentName << ".");
return *argumentIterator->second;
}
/*!
* Retrieves the long name of this option.
*
* @return The long name of this option.
*/
std::string const& getLongName() const {
return this->longName;
}
/*!
* Retrieves whether this option has a short name.
*
* @return True iff the option has a short name.
*/
bool getHasShortName() const {
return this->hasShortName;
}
/*!
* Retrieves the short name of this option.
*
* @return The short name of this option.
*/
std::string const& getShortName() const {
return this->shortName;
}
/*!
* Retrieves the description of the option.
*
* @return The description of the option.
*/
std::string const& getDescription() const {
return this->description;
}
/*!
* Retrieves the name of the module to which this option belongs.
*
* @return The name of the module to which this option belongs.
*/
std::string const& getModuleName() const {
return this->moduleName;
}
/*!
* Retrieves whether the option is required.
*
* @return True iff the option is required.
*/
bool getIsRequired() const {
return this->isRequired;
}
/*!
* Retrieves whether the option has been set.
*
* @return True iff the option has been set.
*/
bool getHasOptionBeenSet() const {
return this->hasBeenSet;
}
private:
// The long name of the option.
std::string longName;
// A flag that indicates whether the option has a short name.
bool hasShortName;
// The short name of the option if any is set and an empty string otherwise.
std::string shortName;
// The description of the option.
std::string description;
// The name of the module to which this option belongs.
std::string moduleName;
// A flag that indicates whether this option is required to appear.
bool isRequired;
// A flag that indicates whether this option is required to be prefixed with the module name.
bool requireModulePrefix;
// A flag that indicates whether this option has been set.
bool hasBeenSet;
// The arguments of this option (possibly empty).
std::vector<std::shared_ptr<ArgumentBase>> arguments;
// A mapping from argument names of this option to the actual arguments.
std::unordered_map<std::string, std::shared_ptr<ArgumentBase>> argumentNameMap;
/*!
* Creates an option with the given parameters.
*
* @param moduleName The module to which this option belongs.
* @param longOptionName The long option name.
* @param shortOptionName The short option name.
* @param hasShortOptionName A flag that indicates whether this option has a short name.
* @param optionDescription The description of the option.
* @param isOptionRequired Sets whether the option is required to appear.
* @param requireModulePrefix A flag that indicates whether this option requires to be prefixed with the
* module name.
* @param optionArguments The arguments of the option.
*/
Option(std::string const& moduleName, std::string const& longOptionName, std::string const& shortOptionName, bool hasShortOptionName, std::string const& optionDescription, bool isOptionRequired, bool requireModulePrefix, std::vector<std::shared_ptr<ArgumentBase>> const& optionArguments = std::vector<std::shared_ptr<ArgumentBase>>()) : longName(longOptionName), hasShortName(hasShortOptionName), shortName(shortOptionName), description(optionDescription), moduleName(moduleName), isRequired(isOptionRequired), requireModulePrefix(requireModulePrefix), hasBeenSet(false), arguments(), argumentNameMap() {
// First, do some sanity checks.
LOG_THROW(!longName.empty(), storm::exceptions::IllegalArgumentException, "Unable to construct option with empty name.");
LOG_THROW(!moduleName.empty(), storm::exceptions::IllegalArgumentException, "Unable to construct option with empty module name.");
bool longNameContainsNonAlpha = std::find_if(longName.begin(), longName.end(), [](char c) { return !std::isalpha(c); }) != longName.end();
LOG_THROW(!longNameContainsNonAlpha, storm::exceptions::IllegalArgumentException, "Unable to construct option with illegal name.");
bool shortNameContainsNonAlpha = std::find_if(shortName.begin(), shortName.end(), [](char c) { return !std::isalpha(c); }) != shortName.end();
LOG_THROW(!shortNameContainsNonAlpha, storm::exceptions::IllegalArgumentException, "Unable to construct option with illegal name.");
// Then index all arguments.
for (auto const& argument : arguments) {
argumentNameMap.emplace(argument->getName(), argument);
}
}
/*!
* Sets the flag that marks the option as being (un)set.
*
* @param newValue The new status of the flag.
*/
void setHasOptionBeenSet(bool newValue = true) {
this->hasBeenSet = newValue;
}
};
}
}
#endif // STORM_SETTINGS_OPTION_H_