Class: Split::Configuration

Inherits:
Object
  • Object
show all
Defined in:
lib/split/configuration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initializeConfiguration

Returns a new instance of Configuration.



157
158
159
160
161
162
163
164
165
166
167
168
# File 'lib/split/configuration.rb', line 157

def initialize
  @ignore_ip_addresses = []
  @ignore_filter = proc{ |request| is_robot? || is_ignored_ip_address? }
  @db_failover = false
  @db_failover_on_db_error = proc{|error|} # e.g. use Rails logger here
  @db_failover_allow_parameter_override = false
  @allow_multiple_experiments = false
  @enabled = true
  @experiments = {}
  @persistence = Split::Persistence::SessionAdapter
  @algorithm = Split::Algorithms::WeightedSample
end

Instance Attribute Details

#algorithmObject

Returns the value of attribute algorithm.



13
14
15
# File 'lib/split/configuration.rb', line 13

def algorithm
  @algorithm
end

#allow_multiple_experimentsObject

Returns the value of attribute allow_multiple_experiments.



10
11
12
# File 'lib/split/configuration.rb', line 10

def allow_multiple_experiments
  @allow_multiple_experiments
end

#botsObject

Returns the value of attribute bots.



3
4
5
# File 'lib/split/configuration.rb', line 3

def bots
  @bots
end

#db_failoverObject

Returns the value of attribute db_failover.



7
8
9
# File 'lib/split/configuration.rb', line 7

def db_failover
  @db_failover
end

#db_failover_allow_parameter_overrideObject

Returns the value of attribute db_failover_allow_parameter_override.



9
10
11
# File 'lib/split/configuration.rb', line 9

def db_failover_allow_parameter_override
  @db_failover_allow_parameter_override
end

#db_failover_on_db_errorObject

Returns the value of attribute db_failover_on_db_error.



8
9
10
# File 'lib/split/configuration.rb', line 8

def db_failover_on_db_error
  @db_failover_on_db_error
end

#enabledObject

Returns the value of attribute enabled.



11
12
13
# File 'lib/split/configuration.rb', line 11

def enabled
  @enabled
end

#experimentsObject

Returns the value of attribute experiments.



16
17
18
# File 'lib/split/configuration.rb', line 16

def experiments
  @experiments
end

#ignore_filterObject

Returns the value of attribute ignore_filter.



6
7
8
# File 'lib/split/configuration.rb', line 6

def ignore_filter
  @ignore_filter
end

#ignore_ip_addressesObject

Returns the value of attribute ignore_ip_addresses.



5
6
7
# File 'lib/split/configuration.rb', line 5

def ignore_ip_addresses
  @ignore_ip_addresses
end

#persistenceObject

Returns the value of attribute persistence.



12
13
14
# File 'lib/split/configuration.rb', line 12

def persistence
  @persistence
end

#robot_regexObject

Returns the value of attribute robot_regex.



4
5
6
# File 'lib/split/configuration.rb', line 4

def robot_regex
  @robot_regex
end

#store_overrideObject

Returns the value of attribute store_override.



14
15
16
# File 'lib/split/configuration.rb', line 14

def store_override
  @store_override
end

Instance Method Details

#disabled?Boolean

Returns:

  • (Boolean)


73
74
75
# File 'lib/split/configuration.rb', line 73

def disabled?
  !enabled
end

#experiment_for(name) ⇒ Object



77
78
79
80
81
82
# File 'lib/split/configuration.rb', line 77

def experiment_for(name)
  if normalized_experiments
    # TODO symbols
    normalized_experiments[name.to_sym]
  end
end

#metricsObject



84
85
86
87
88
89
90
91
92
93
94
95
96
97
# File 'lib/split/configuration.rb', line 84

def metrics
  return @metrics if defined?(@metrics)
  @metrics = {}
  if self.experiments
    self.experiments.each do |key, value|
      metric_name = value_for(value, :metric).to_sym rescue nil
      if metric_name
        @metrics[metric_name] ||= []
        @metrics[metric_name] << Split::Experiment.new(key)
      end
    end
  end
  @metrics
end

#normalize_alternatives(alternatives) ⇒ Object



122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
# File 'lib/split/configuration.rb', line 122

def normalize_alternatives(alternatives)
  given_probability, num_with_probability = alternatives.inject([0,0]) do |a,v|
    p, n = a
    if percent = value_for(v, :percent)
      [p + percent, n + 1]
    else
      a
    end
  end

  num_without_probability = alternatives.length - num_with_probability
  unassigned_probability = ((100.0 - given_probability) / num_without_probability / 100.0)

  if num_with_probability.nonzero?
    alternatives = alternatives.map do |v|
      if (name = value_for(v, :name)) && (percent = value_for(v, :percent))
        { name => percent / 100.0 }
      elsif name = value_for(v, :name)
        { name => unassigned_probability }
      else
        { v => unassigned_probability }
      end
    end

    [alternatives.shift, alternatives]
  else
    alternatives = alternatives.dup
    [alternatives.shift, alternatives]
  end
end

#normalized_experimentsObject



99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
# File 'lib/split/configuration.rb', line 99

def normalized_experiments
  if @experiments.nil?
    nil
  else
    experiment_config = {}
    @experiments.keys.each do |name|
      experiment_config[name.to_sym] = {}
    end

    @experiments.each do |experiment_name, settings|
      if alternatives = value_for(settings, :alternatives)
        experiment_config[experiment_name.to_sym][:alternatives] = normalize_alternatives(alternatives)
      end

      if goals = value_for(settings, :goals)
        experiment_config[experiment_name.to_sym][:goals] = goals
      end
    end

    experiment_config
  end
end