Iguana 1.0.0
Implementation Guardian of Analysis Algorithms
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iguana::Logger Class Reference

#include <Logger.h>

Detailed Description

Simple logger service.

  • Each algorithm instance should own a Logger instance
  • The user may control the log level of each Logger, thus the log level of each algorithm
  • Errors and warnings print to stderr, whereas all other levels print to stdout

Definition at line 17 of file Logger.h.

Public Types

enum  Level {
  trace , debug , info , quiet ,
  warn , error , silent
}

Public Member Functions

template<typename... VALUES>
void Debug (std::string_view message, const VALUES... vals) const
 Printout a log message at the debug level.
void DisableStyle ()
 Disable styled log printout color and emphasis.
void EnableStyle ()
 Enable styled log printouts, with color and emphasis.
template<typename... VALUES>
void Error (std::string_view message, const VALUES... vals) const
 Printout a log message at the error level.
Level GetLevel ()
template<typename... VALUES>
void Info (std::string_view message, const VALUES... vals) const
 Printout a log message at the info level.
 Logger (std::string_view name="log", Level const lev=DEFAULT_LEVEL, bool const enable_style=true)
template<typename... VALUES>
void Print (Level const lev, std::string_view message, const VALUES... vals) const
void SetLevel (Level const lev)
void SetLevel (std::string_view lev)
template<typename... VALUES>
void Trace (std::string_view message, const VALUES... vals) const
 Printout a log message at the trace level.
template<typename... VALUES>
void Warn (std::string_view message, const VALUES... vals) const
 Printout a log message at the warn level.

Static Public Member Functions

static std::string Header (std::string_view message, int const width=50)

Static Public Attributes

static Level const DEFAULT_LEVEL = info
 The default log level.

Friends

class Object

Member Enumeration Documentation

◆ Level

enum iguana::Logger::Level

These are the available log levels, from lowest to highest:

  • trace: the most verbose level, used for fine-grained printouts for each event
  • debug: less verbose printout, expected to be less frequent than trace
  • info: the least verbose printout; this is the default level
  • quiet: use this level to only allow warnings and errors, silencing all other printouts
  • warn: an issue that may or may not be critical
  • error: an issue that is likely critical
  • silent: use this level to silence all printouts (use it at your own risk!)

Definition at line 32 of file Logger.h.

Constructor & Destructor Documentation

◆ Logger()

iguana::Logger::Logger ( std::string_view name = "log",
Level const lev = DEFAULT_LEVEL,
bool const enable_style = true )
Parameters
namethe name of this logger instance, which will be include in all of its printouts
levthe log level
enable_styleif true, certain printouts will be styled with color and emphasis

◆ ~Logger()

iguana::Logger::~Logger ( )
inline

Definition at line 49 of file Logger.h.

Member Function Documentation

◆ Debug()

template<typename... VALUES>
void iguana::Logger::Debug ( std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the debug level.

See also
Logger::Print for more details

Definition at line 82 of file Logger.h.

◆ Error()

template<typename... VALUES>
void iguana::Logger::Error ( std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the error level.

See also
Logger::Print for more details

Definition at line 91 of file Logger.h.

◆ GetLevel()

Level iguana::Logger::GetLevel ( )

Get the current log level

Returns
the log level

◆ Header()

std::string iguana::Logger::Header ( std::string_view message,
int const width = 50 )
static

Generate a header for a printout

Parameters
messagethe header message
widththe width of the header in number of characters
Returns
the header string

◆ Info()

template<typename... VALUES>
void iguana::Logger::Info ( std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the info level.

See also
Logger::Print for more details

Definition at line 85 of file Logger.h.

◆ Print()

template<typename... VALUES>
void iguana::Logger::Print ( Level const lev,
std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the specified level. The message will only print if lev is at least as high as the current level of this Logger instance, as set by Logger::SetLevel.

Parameters
levthe log level for this message
messagethe message to print; this may be a format string, as in fmt::format
valsvalues for the format string message

Definition at line 99 of file Logger.h.

◆ SetLevel() [1/2]

void iguana::Logger::SetLevel ( Level const lev)

Set the log level to this level. Log messages with a lower level will not be printed.

See also
Logger::Level for available levels.
Parameters
levthe log level

◆ SetLevel() [2/2]

void iguana::Logger::SetLevel ( std::string_view lev)

Set the log level to this level. Log messages with a lower level will not be printed.

See also
Logger::Level for available levels.
Parameters
levthe log level name

◆ Trace()

template<typename... VALUES>
void iguana::Logger::Trace ( std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the trace level.

See also
Logger::Print for more details

Definition at line 79 of file Logger.h.

◆ Warn()

template<typename... VALUES>
void iguana::Logger::Warn ( std::string_view message,
const VALUES... vals ) const
inline

Printout a log message at the warn level.

See also
Logger::Print for more details

Definition at line 88 of file Logger.h.

◆ Object

friend class Object
friend

Definition at line 20 of file Logger.h.

Member Data Documentation

◆ DEFAULT_LEVEL

Level const iguana::Logger::DEFAULT_LEVEL = info
static

The default log level.

Definition at line 43 of file Logger.h.

The documentation for this class was generated from the following file:
  • /builds/hallb/clas12/iguana/iguana_v1.0.0/src/iguana/services/Logger.h