1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
module Knapsack
class Logger
attr_accessor :level
DEBUG = 0
INFO = 1
WARN = 2
UnknownLogLevel = Class.new(StandardError)
def log(level, text=nil)
level_method =
case level
when DEBUG then :debug
when INFO then :info
when WARN then :warn
else raise UnknownLogLevel
end
public_send(level_method, text)
end
def debug(text=nil)
return if level != DEBUG
puts text
end
def info(text=nil)
return if level > INFO
puts text
end
def warn(text=nil)
return if level > WARN
puts text
end
end
end
|
