mirror of https://github.com/Icinga/icinga2.git
85 lines
1.5 KiB
C++
85 lines
1.5 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#ifndef CONVERT_H
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#define CONVERT_H
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#include "base/i2-base.hpp"
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#include "base/value.hpp"
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#include <boost/lexical_cast.hpp>
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namespace icinga
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{
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/**
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* Utility class for converting types.
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*
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* @ingroup base
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*/
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class Convert
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{
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public:
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template<typename T>
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static long ToLong(const T& val)
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{
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try {
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return boost::lexical_cast<long>(val);
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} catch (const std::exception&) {
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std::ostringstream msgbuf;
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msgbuf << "Can't convert '" << val << "' to an integer.";
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BOOST_THROW_EXCEPTION(std::invalid_argument(msgbuf.str()));
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}
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}
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template<typename T>
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static double ToDouble(const T& val)
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{
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try {
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return boost::lexical_cast<double>(val);
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} catch (const std::exception&) {
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std::ostringstream msgbuf;
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msgbuf << "Can't convert '" << val << "' to a floating point number.";
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BOOST_THROW_EXCEPTION(std::invalid_argument(msgbuf.str()));
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}
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}
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static long ToLong(const Value& val)
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{
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return val;
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}
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static long ToLong(double val)
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{
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return static_cast<long>(val);
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}
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static double ToDouble(const Value& val)
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{
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return val;
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}
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static bool ToBool(const Value& val)
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{
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return val.ToBool();
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}
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template<typename T>
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static String ToString(const T& val)
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{
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return boost::lexical_cast<std::string>(val);
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}
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static String ToString(const String& val);
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static String ToString(const Value& val);
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static String ToString(double val);
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static double ToDateTimeValue(double val);
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static double ToDateTimeValue(const Value& val);
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private:
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Convert();
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};
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}
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#endif /* CONVERT_H */
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