Class: SplitIoClient::SplitClient

Inherits:
Object
  • Object
show all
Defined in:
lib/splitclient-rb/clients/split_client.rb

Instance Method Summary collapse

Constructor Details

#initialize(api_key, config = {}, adapter = nil, splits_repository, segments_repository, impressions_repository, metrics_repository) ⇒ SplitIoClient

Creates a new split client instance that connects to split.io API.

Parameters:

  • api_key (String) —

    the API key for your split account



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# File 'lib/splitclient-rb/clients/split_client.rb', line 9

def initialize(api_key, config = {}, adapter = nil, splits_repository, segments_repository, impressions_repository, metrics_repository)
  @config = config

  @splits_repository = splits_repository
  @segments_repository = segments_repository
  @impressions_repository = impressions_repository
  @metrics_repository = metrics_repository

  @adapter = adapter
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 128

def destroy
  @config.logger.info('Split client shutdown started...') if @config.debug_enabled

  @config.threads[:impressions_sender].raise(SplitIoClient::ImpressionShutdownException)
  @config.threads.reject { |k, _| k == :impressions_sender }.each do |name, thread|
    Thread.kill(thread)
  end

  @metrics_repository.clear
  @splits_repository.clear
  @segments_repository.clear

  @config.logger.info('Split client shutdown complete') if @config.debug_enabled
end

#get_treatment(key, split_name, attributes = nil, split_data = nil, store_impressions = true, multiple = false, evaluator = nil) ⇒ String/Hash

obtains the treatment for a given feature

Parameters:

  • key (String/Hash) —

    user id or hash with matching_key/bucketing_key

  • split_name (String/Array) —

    name of the feature that is being validated or array of them

  • attributes (Hash) (defaults to: nil) —

    attributes to pass to the treatment class

  • split_data (Hash) (defaults to: nil) —

    split data, when provided this method doesn't fetch splits_repository for the data

  • store_impressions (Boolean) (defaults to: true) —

    impressions aren't stored if this flag is false

  • multiple (Hash) (defaults to: false) —

    internal flag to signal if method is called by get_treatments

  • evaluator (Evaluator) (defaults to: nil) —

    Evaluator class instance, used to cache treatments

Returns:

  • (String/Hash) —

    Treatment as String or Hash of treatments in case of array of features



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# File 'lib/splitclient-rb/clients/split_client.rb', line 56

def get_treatment(
    key, split_name, attributes = nil, split_data = nil, store_impressions = true,
    multiple = false, evaluator = nil
  )
  bucketing_key, matching_key = keys_from_key(key)
  treatment_data = { label: Engine::Models::Label::DEFINITION_NOT_FOUND, treatment: SplitIoClient::Engine::Models::Treatment::CONTROL }
  evaluator ||= Engine::Parser::Evaluator.new(@segments_repository, @splits_repository)

  if matching_key.nil?
    @config.logger.warn('matching_key was null for split_name: ' + split_name.to_s)
    return parsed_treatment(multiple, treatment_data)
  end

  if split_name.nil?
    @config.logger.warn('split_name was null for key: ' + key)
    return parsed_treatment(multiple, treatment_data)
  end

  start = Time.now

  begin
    split = multiple ? split_data : @splits_repository.get_split(split_name)

    if split.nil?
      @config.logger.debug("split_name: #{split_name} does not exist. Returning CONTROL")
      return parsed_treatment(multiple, treatment_data)
    else
      treatment_data =
        evaluator.call(
        { bucketing_key: bucketing_key, matching_key: matching_key }, split, attributes
      )
    end
  rescue StandardError => error
    @config.log_found_exception(__method__.to_s, error)

    store_impression(
      split_name, matching_key, bucketing_key,
      {
        treatment: SplitIoClient::Engine::Models::Treatment::CONTROL,
        label: SplitIoClient::Engine::Models::Label::EXCEPTION
      },
      store_impressions, attributes
    )

    return parsed_treatment(multiple, treatment_data)
  end

  begin
    latency = (Time.now - start) * 1000.0
    # Disable impressions if @config.impressions_queue_size == -1
    split && store_impression(split_name, matching_key, bucketing_key, treatment_data, store_impressions, attributes)

    # Measure
    @adapter.metrics.time('sdk.get_treatment', latency)
  rescue StandardError => error
    @config.log_found_exception(__method__.to_s, error)

    store_impression(
      split_name, matching_key, bucketing_key,
      {
        treatment: SplitIoClient::Engine::Models::Treatment::CONTROL,
        label: SplitIoClient::Engine::Models::Label::EXCEPTION
      },
      store_impressions, attributes
    )

    return parsed_treatment(multiple, treatment_data)
  end

  parsed_treatment(multiple, treatment_data)
end

#get_treatments(key, split_names, attributes = nil) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 20

def get_treatments(key, split_names, attributes = nil)
  bucketing_key, matching_key = keys_from_key(key)
  evaluator = Engine::Parser::Evaluator.new(@segments_repository, @splits_repository, true)

  treatments_labels_change_numbers =
    @splits_repository.get_splits(split_names).each_with_object({}) do |(name, data), memo|
      memo.merge!(name => get_treatment(key, name, attributes, data, false, true, evaluator))
    end

  if @config.impressions_queue_size > 0
    time = (Time.now.to_f * 1000.0).to_i
    @impressions_repository.add_bulk(
      matching_key, bucketing_key, treatments_labels_change_numbers, time
    )

    route_impressions(split_names, matching_key, bucketing_key, time, treatments_labels_change_numbers, attributes)
  end

  split_names = treatments_labels_change_numbers.keys
  treatments = treatments_labels_change_numbers.values.map { |v| v[:treatment] }

  Hash[split_names.zip(treatments)]
end

#impression_router ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 183

def impression_router
  @impression_router ||= SplitIoClient::ImpressionRouter.new(@config)
end

#keys_from_key(key) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 187

def keys_from_key(key)
  case key.class.to_s
  when 'Hash'
    key.values_at(:bucketing_key, :matching_key).map { |k| k.nil? ? nil : k.to_s }
  else
    [nil, key].map { |k| k.nil? ? nil : k.to_s }
  end
end

#parsed_treatment(multiple, treatment_data) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 196

def parsed_treatment(multiple, treatment_data)
  if multiple
    {
      treatment: treatment_data[:treatment],
      label: treatment_data[:label],
      change_number: treatment_data[:change_number]
    }
  else
    treatment_data[:treatment]
  end
end

#route_impression(split_name, matching_key, bucketing_key, time, treatment, attributes) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 161

def route_impression(split_name, matching_key, bucketing_key, time, treatment, attributes)
  impression_router.add(
    split_name: split_name,
    matching_key: matching_key,
    bucketing_key: bucketing_key,
    time: time,
    treatment: treatment,
    attributes: attributes
  )
end

#route_impressions(split_names, matching_key, bucketing_key, time, treatments_labels_change_numbers, attributes) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 172

def route_impressions(split_names, matching_key, bucketing_key, time, treatments_labels_change_numbers, attributes)
  impression_router.add_bulk(
    split_names: split_names,
    matching_key: matching_key,
    bucketing_key: bucketing_key,
    time: time,
    treatments_labels_change_numbers: treatments_labels_change_numbers,
    attributes: attributes
  )
end

#store_impression(split_name, matching_key, bucketing_key, treatment, store_impressions, attributes) ⇒ Object 



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# File 'lib/splitclient-rb/clients/split_client.rb', line 143

def store_impression(split_name, matching_key, bucketing_key, treatment, store_impressions, attributes)
  time = (Time.now.to_f * 1000.0).to_i
  route_impression(split_name, matching_key, bucketing_key, time, treatment, attributes) if @config.impression_listener && store_impressions

  return if @config.impressions_queue_size <= 0 || !store_impressions

  @impressions_repository.add(split_name,
    'keyName' => matching_key,
    'bucketingKey' => bucketing_key,
    'treatment' => treatment[:treatment],
    'label' => @config.labels_enabled ? treatment[:label] : nil,
    'time' => time,
    'changeNumber' => treatment[:change_number]
  )
rescue StandardError => error
  @config.log_found_exception(__method__.to_s, error)
end