AttributeMap Class Reference

A attribute map for telemetry data. More...

#include <cvb/telemetry/attribute_map.hpp>

Inherited by Log, and Span.

Public Member Functions
AttributeMap &	operator() (const std::string &key, const Char *value)
	Specialization for Cvb::Char*.
AttributeMap &	operator() (const std::string &key, void *value)
	Specialization for void*.
	operator bool () const noexcept
	Operator to evaluate as bool.
template<>
AttributeMap &	operator() (const std::string &key, const double &value)
	Specialization for double.
template<>
AttributeMap &	operator() (const std::string &key, const float &value)
	Specialization for float.
template<>
AttributeMap &	operator() (const std::string &key, const String &value)
	Specialization for Cvb::String.
template<>
AttributeMap &	operator() (const std::string &key, const bool &value)
	Specialization for bool.
template<>
AttributeMap &	operator() (const std::string &key, const int8_t &value)
	Specialization for int8_t.
template<>
AttributeMap &	operator() (const std::string &key, const uint8_t &value)
	Specialization for uint8_t.
template<>
AttributeMap &	operator() (const std::string &key, const int16_t &value)
	Specialization for int16_t.
template<>
AttributeMap &	operator() (const std::string &key, const uint16_t &value)
	Specialization for uint16_t.
template<>
AttributeMap &	operator() (const std::string &key, const int32_t &value)
	Specialization for int32_t.
template<>
AttributeMap &	operator() (const std::string &key, const uint32_t &value)
	Specialization for uint32_t.
template<>
AttributeMap &	operator() (const std::string &key, const int64_t &value)
	Specialization for int64_t.
template<>
AttributeMap &	operator() (const std::string &key, const uint64_t &value)
	Specialization for uint64_t.

Detailed Description

A attribute map for telemetry data.

An attribute map stores additional meta data associated with logs or traces. The data is stored as key, value pair. Attributes can be stored in a Log or Span using operator(). Internally all data stored will be mapped to either

• bool
• int64_t
• double
• std::string (utf8)

Member Function Documentation

operator bool()

operator bool ( ) const

inlineexplicitnoexcept

Operator to evaluate as bool.

Exceptions

Does	not throw any exception.

Dummy spans always evaluate to false. Otherwise spans evaluate to true.