Class: Togls::RuleRepository

Inherits:
Object
  • Object
show all
Defined in:
lib/togls/rule_repository.rb

Overview

Rule Repository

The Rule Repository is the intended interface to store and retrieve rules. It does these by interfacing with Rule Repository Drivers which are passed in during construction as an Array.

Instance Method Summary collapse

Constructor Details

#initialize(drivers) ⇒ RuleRepository

Returns a new instance of RuleRepository.



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# File 'lib/togls/rule_repository.rb', line 8

def initialize(drivers)
  unless drivers.is_a?(Array)
    raise Togls::InvalidDriver, 'RuleRepository requires a valid driver'
  end
  if drivers.empty?
    raise Togls::MissingDriver, 'RuleRepository requires a driver'
  end
  @drivers = drivers
end

Instance Method Details

#extract_storage_payload(rule) ⇒ Object 



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# File 'lib/togls/rule_repository.rb', line 25

def extract_storage_payload(rule)
  { 'klass' => rule.class, 'data' => rule.data }
end

#fetch_rule_data(id) ⇒ Object 



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# File 'lib/togls/rule_repository.rb', line 29

def fetch_rule_data(id)
  rule_data = nil
  @drivers.reverse.each do |driver|
    rule_data = driver.get(id)
    break if rule_data
  end
  rule_data
end

#get(rule_id) ⇒ Object 



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# File 'lib/togls/rule_repository.rb', line 38

def get(rule_id)
  rule_data = fetch_rule_data(rule_id)
  reconstitute_rule(rule_data)
end

#reconstitute_rule(rule_data) ⇒ Object 



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# File 'lib/togls/rule_repository.rb', line 43

def reconstitute_rule(rule_data)
  rule_data['klass'].new(rule_data['data'])
end

#store(rule) ⇒ Object 



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# File 'lib/togls/rule_repository.rb', line 18

def store(rule)
  rule_data = extract_storage_payload(rule)
  @drivers.each do |driver|
    driver.store(rule.id, rule_data)
  end
end