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|
require 'set'
module Flipper
module Adapters
# Public: Adapter for storing everything in memory.
# Useful for tests/specs.
class Memory
include ::Flipper::Adapter
FeaturesKey = :features
# Public: The name of the adapter.
attr_reader :name
# Public
def initialize(source = nil)
@source = source || {}
@name = :memory
end
# Public: The set of known features.
def features
@source.keys.to_set
end
# Public: Adds a feature to the set of known features.
def add(feature)
@source[feature.key] ||= default_config
true
end
# Public: Removes a feature from the set of known features and clears
# all the values for the feature.
def remove(feature)
@source.delete(feature.key)
true
end
# Public: Clears all the gate values for a feature.
def clear(feature)
@source[feature.key] = default_config
true
end
# Public
def get(feature)
@source[feature.key] || default_config
end
def get_multi(features)
result = {}
features.each do |feature|
result[feature.key] = @source[feature.key] || default_config
end
result
end
def get_all
@source
end
# Public
def enable(feature, gate, thing)
@source[feature.key] ||= default_config
case gate.data_type
when :boolean
clear(feature)
@source[feature.key][gate.key] = thing.value.to_s
when :integer
@source[feature.key][gate.key] = thing.value.to_s
when :set
@source[feature.key][gate.key] << thing.value.to_s
else
raise "#{gate} is not supported by this adapter yet"
end
true
end
# Public
def disable(feature, gate, thing)
@source[feature.key] ||= default_config
case gate.data_type
when :boolean
clear(feature)
when :integer
@source[feature.key][gate.key] = thing.value.to_s
when :set
@source[feature.key][gate.key].delete thing.value.to_s
else
raise "#{gate} is not supported by this adapter yet"
end
true
end
# Public
def inspect
attributes = [
'name=:memory',
"source=#{@source.inspect}",
]
"#<#{self.class.name}:#{object_id} #{attributes.join(', ')}>"
end
end
end
end
|
