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# frozen_string_literal: true
# Copyright, 2017, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative 'buffer'
module Console
UNKNOWN = 'unknown'
class Filter
def self.[] **levels
klass = Class.new(self)
min_level, max_level = levels.values.minmax
klass.instance_exec do
const_set(:LEVELS, levels)
const_set(:MINIMUM_LEVEL, min_level)
const_set(:MAXIMUM_LEVEL, max_level)
levels.each do |name, level|
const_set(name.to_s.upcase, level)
define_method(name) do |subject = nil, *arguments, **options, &block|
if self.enabled?(subject, level)
self.call(subject, *arguments, severity: name, **options, **@options, &block)
end
end
define_method("#{name}!") do
@level = level
end
define_method("#{name}?") do
@level <= level
end
end
end
return klass
end
def initialize(output, verbose: true, level: self.class::DEFAULT_LEVEL, enabled: nil, **options)
@output = output
@verbose = verbose
@level = level
@subjects = {}
@options = options
if enabled
enabled.each{|name| enable(name)}
end
end
def with(level: @level, verbose: @verbose, **options)
dup.tap do |logger|
logger.level = level
logger.verbose! if verbose
logger.options = @options.merge(options)
end
end
attr_accessor :output
attr :verbose
attr :level
attr :subjects
attr_accessor :options
def level= level
if level.is_a? Symbol
@level = self.class::LEVELS[level]
else
@level = level
end
end
def verbose!(value = true)
@verbose = value
@output.verbose!(value)
end
def off!
@level = self.class::MAXIMUM_LEVEL + 1
end
def all!
@level = self.class::MINIMUM_LEVEL - 1
end
# You can enable and disable logging for classes. This function checks if logging for a given subject is enabled.
# @param subject [Object] the subject to check.
def enabled?(subject, level = self.class::MINIMUM_LEVEL)
if specific_level = @subjects[subject.class]
return level >= specific_level
end
if level >= @level
return true
end
end
# Enable specific log level for the given class.
# @param name [String, Class] The class to enable.
def enable(subject, level = self.class::MINIMUM_LEVEL)
unless subject.is_a?(Class)
subject = subject.class
end
@subjects[subject] = level
end
# Disable specific logging for the specific class.
# @param name [String, Class] The class to disable.
def disable(subject)
unless subject.is_a? Class
subject = subject.class
end
@subjects.delete(subject)
end
def call(*arguments, **options, &block)
@output.call(*arguments, **options, &block)
end
end
end
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