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/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef CONVERT_H
#define CONVERT_H
#include "base/i2-base.hpp"
#include "base/value.hpp"
#include <boost/lexical_cast.hpp>
namespace icinga
{
/**
* Utility class for converting types.
*
* @ingroup base
*/
class Convert
{
public:
template<typename T>
static long ToLong(const T& val)
{
try {
return boost::lexical_cast<long>(val);
} catch (const std::exception&) {
std::ostringstream msgbuf;
msgbuf << "Can't convert '" << val << "' to an integer.";
BOOST_THROW_EXCEPTION(std::invalid_argument(msgbuf.str()));
}
}
template<typename T>
static double ToDouble(const T& val)
{
try {
return boost::lexical_cast<double>(val);
} catch (const std::exception&) {
std::ostringstream msgbuf;
msgbuf << "Can't convert '" << val << "' to a floating point number.";
BOOST_THROW_EXCEPTION(std::invalid_argument(msgbuf.str()));
}
}
static long ToLong(const Value& val)
{
return val;
}
static long ToLong(double val)
{
return static_cast<long>(val);
}
static double ToDouble(const Value& val)
{
return val;
}
static bool ToBool(const Value& val)
{
return val.ToBool();
}
template<typename T>
static String ToString(const T& val)
{
return boost::lexical_cast<std::string>(val);
}
static String ToString(const String& val);
static String ToString(const Value& val);
static String ToString(double val);
static double ToDateTimeValue(double val);
static double ToDateTimeValue(const Value& val);
private:
Convert();
};
}
#endif /* CONVERT_H */
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