Module: Logging
- Includes:
- File_Checking
- Included in:
- Action, Cell, Column, Menu, Row, Scrollable, SheetData, SheetInterface, TClass, TClass, ViewWorkBook
- Defined in:
- lib/logging.rb
Overview
of the object. Example for a class-level logger: # ——————– class TClass
self.extend(Logging)
@@log = init_logger(STDOUT)
def test_log
@@log.info('class-level logger called from instance: ' << @@log.to_s)
@log = @@log
@log.info('AGAIN: class-level logger called from instance: ' << @log.to_s)
end
def self::test_log
@log.info('class-level logger called from class: ' << @log.to_s)
@@log.info('AGAIN: class-level logger called from class: ' << @@log.to_s)
end
end #——————— Example for a object-level logger: ATTN! This means 1 logger per object. # ——————– class TClass
include Logging
def initialize
init_logger(STDOUT, Logger::DEBUG)
end
def test_log
@log.debug('called test_log() ')
end
end
Constant Summary collapse
- @@have_log =
false
- @@LOG_CONF =
File.dirname(File.absolute_path(__FILE__)) << File::Separator << 'log.conf'
Instance Method Summary collapse
-
#init_logger(target = STDOUT, level = Logger::INFO) ⇒ Object
Call this method in an instance-method (e.g. initialize() ) to define the object-level logger; i.e.
-
#log_level=(level) ⇒ Object
set the log-level.
-
#log_target=(target) ⇒ Object
Set the log-target to an IO object.
Methods included from File_Checking
Instance Method Details
#init_logger(target = STDOUT, level = Logger::INFO) ⇒ Object
Call this method in an instance-method (e.g. initialize() ) to define the object-level logger; i.e. an object-specific member @log. Call this method within the class-definition for a class-level logger; i.e. a member @log for class-level acces. The method returns the logger, so you can actually do what you want with it.
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# File 'lib/logging.rb', line 69 def init_logger(target = STDOUT, level = Logger::INFO) # Prepare for a class-level logger. This is actually quite cool. # ---> Ingeniuous code starts here cn = (self.class == Class ? name : self.class.name) # <--- Ingeniuous code ends here # allow to override the set log-levels with an # external configuration (log.conf). log_conf(cn) # Or use the defaults as set here or elsewhere... @level ||= level @target ||= target @log = Logger.new(@target) @log.level = @level @log.formatter = proc do |severity, datetime, progname, msg| t = Time.now "#{cn}: #{severity} #{t.hour}-#{t.min}-#{t.sec}: #{msg}\n" end if ! @@have_log @log.debug cn.dup << ' reading logging-configuration from ' << @@LOG_CONF @@have_log = true @log.debug('level is ' << level.to_s) end return @log end |
#log_level=(level) ⇒ Object
set the log-level
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# File 'lib/logging.rb', line 107 def log_level=(level) @level = level @log.level = @level end |
#log_target=(target) ⇒ Object
Set the log-target to an IO object.
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# File 'lib/logging.rb', line 100 def log_target=(target) @target = target @log = Logger.new(@@target) @log.level = @level end |