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require 'moneta'
module Flipper
module Adapters
class Moneta
include ::Flipper::Adapter
FEATURES_KEY = :flipper_features
# Public: The name of the adapter.
attr_reader :name
# Public
def initialize(moneta)
@moneta = moneta
@name = :moneta
end
# Public: The set of known features
def features
moneta[FEATURES_KEY] || Set.new
end
# Public: Adds a feature to the set of known features.
def add(feature)
moneta[FEATURES_KEY] = features << feature.key.to_s
true
end
# Public: Removes a feature from the set of known features and clears
# all the values for the feature.
def remove(feature)
moneta[FEATURES_KEY] = features.delete(feature.key.to_s)
moneta.delete(key(feature.key))
true
end
# Public: Clears all the gate values for a feature.
def clear(feature)
moneta[key(feature.key)] = default_config
true
end
# Public: Gets the values for all gates for a given feature.
#
# Returns a Hash of Flipper::Gate#key => value.
def get(feature)
default_config.merge(moneta[key(feature.key)].to_h)
end
# Public: Enables a gate for a given thing.
#
# feature - The Flipper::Feature for the gate.
# gate - The Flipper::Gate to disable.
# thing - The Flipper::Type being enabled for the gate.
#
# Returns true.
def enable(feature, gate, thing)
case gate.data_type
when :boolean, :integer
result = get(feature)
result[gate.key] = thing.value.to_s
moneta[key(feature.key)] = result
when :set
result = get(feature)
result[gate.key] << thing.value.to_s
moneta[key(feature.key)] = result
end
true
end
# Public: Disables a gate for a given thing.
#
# feature - The Flipper::Feature for the gate.
# gate - The Flipper::Gate to disable.
# thing - The Flipper::Type being disabled for the gate.
#
# Returns true.
def disable(feature, gate, thing)
case gate.data_type
when :boolean
clear(feature)
when :integer
result = get(feature)
result[gate.key] = thing.value.to_s
moneta[key(feature.key)] = result
when :set
result = get(feature)
result[gate.key] = result[gate.key].delete(thing.value.to_s)
moneta[key(feature.key)] = result
end
true
end
private
def key(feature_key)
"#{FEATURES_KEY}/#{feature_key}"
end
attr_reader :moneta
end
end
end
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