Class: LaunchDarkly::InMemoryFeatureStore

Inherits:
Object
  • Object
show all
Defined in:
lib/ldclient-rb/feature_store.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ InMemoryFeatureStore

Returns a new instance of InMemoryFeatureStore.



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# File 'lib/ldclient-rb/feature_store.rb', line 5

def initialize
  @features = Hash.new
  @lock = Concurrent::ReadWriteLock.new
  @initialized = Concurrent::AtomicBoolean.new(false)
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 18

def all
  @lock.with_read_lock do
    @features.select { |_k, f| not f[:deleted] }
  end
end

#delete(key, version) ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 24

def delete(key, version)
  @lock.with_write_lock do
    old = @features[key.to_sym]

    if !old.nil? && old[:version] < version
      old[:deleted] = true
      old[:version] = version
      @features[key.to_sym] = old
    elsif old.nil?
      @features[key.to_sym] = { deleted: true, version: version }
    end
  end
end

#get(key) ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 11

def get(key)
  @lock.with_read_lock do
    f = @features[key.to_sym]
    (f.nil? || f[:deleted]) ? nil : f
  end
end

#init(fs) ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 38

def init(fs)
  @lock.with_write_lock do
    @features.replace(fs)
    @initialized.make_true
  end
end

#initialized? ⇒ Boolean

Returns:



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# File 'lib/ldclient-rb/feature_store.rb', line 55

def initialized?
  @initialized.value
end

#stop ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 59

def stop
  # nothing to do
end

#upsert(key, feature) ⇒ Object 



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# File 'lib/ldclient-rb/feature_store.rb', line 45

def upsert(key, feature)
  @lock.with_write_lock do
    old = @features[key.to_sym]

    if old.nil? || old[:version] < feature[:version]
      @features[key.to_sym] = feature
    end
  end
end