Class: Opener::LanguageIdentifier::Detector

Inherits:
Object
  • Object
show all
Defined in:
lib/opener/language_identifier/detector.rb

Overview

Ruby wrapper around the Cybozu DetectorFactory and Detector classes. This class automatically handles switching of profiles based on input sizes, assigning priorities to languages, etc.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(backend = nil, fallback = nil) ⇒ Detector

Returns a new instance of Detector.

Parameters:

  • options (Hash) 


16
17
18
19
20
21
22
23
24
25
 
# File 'lib/opener/language_identifier/detector.rb', line 16

def initialize backend = nil, fallback = nil
  klass     = Backend.const_get backend.to_sym if backend
  klass   ||= Backend::LanguageDetection
  @backend  = klass.new

  klass     = Backend.const_get fallback.to_sym if fallback
  @fallback = klass.new if klass

  @timeout = ENV['TIMEOUT']&.to_i
end

Instance Attribute Details

#backend ⇒ Object (readonly)

Returns the value of attribute backend.



10
11
12
 
# File 'lib/opener/language_identifier/detector.rb', line 10

def backend
  @backend
end

Instance Method Details

#backend_detect(backend, input) ⇒ Object 



38
39
40
41
42
43
 
# File 'lib/opener/language_identifier/detector.rb', line 38

def backend_detect backend, input
  return backend.detect input unless @timeout
  Timeout.timeout @timeout do
    backend.detect input
  end
end

#detect(input) ⇒ String

Returns:

  • (String) 


30
31
32
33
34
35
36
 
# File 'lib/opener/language_identifier/detector.rb', line 30

def detect(input)
  backend_detect @backend, input
rescue
  raise unless @fallback
  puts 'Using fallback backend' if ENV['DEBUG']
  backend_detect @fallback, input
end