#include "sp-factory.h"

#include <stdexcept>

#include "sp-object.h"
#include "xml/node.h"


SPFactory::TypeNotRegistered::TypeNotRegistered(const std::string& type)
	: std::exception(), type(type) {
}

const char* SPFactory::TypeNotRegistered::what() const throw() {
	return type.c_str();
}

SPFactory& SPFactory::instance() {
	static SPFactory factory;
	return factory;
}

bool SPFactory::registerObject(const std::string& id, CreateFunction* createFunction) {
	return this->objectMap.insert(std::make_pair(id, createFunction)).second;
}

SPObject* SPFactory::createObject(const std::string& id) const {
	std::map<const std::string, CreateFunction*>::const_iterator it = this->objectMap.find(id);

	if (it == this->objectMap.end()) {
		throw TypeNotRegistered(id);
	}

	return (*it).second();
}