Class: Hecks::Runtime::PolicyInterpreter

Inherits:
Object
  • Object
show all
Defined in:
lib/hecks/runtime/policy_interpreter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(registry, door:) ⇒ PolicyInterpreter

Returns a new instance of PolicyInterpreter.



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# File 'lib/hecks/runtime/policy_interpreter.rb', line 14

def initialize(registry, door:)
  @registry = registry
  @door     = door
end

Instance Attribute Details

#registry ⇒ Object (readonly)

Returns the value of attribute registry.



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# File 'lib/hecks/runtime/policy_interpreter.rb', line 12

def registry
  @registry
end

Instance Method Details

#react(event, domain) ⇒ Object

deliver returns nil for a policy whose where did not hold — SILENTLY, the same as a policy policies_for never selected at all (an event_qualifier miss carries no reaction_log entry either) — so nothing is appended for it. A for_each policy answers an ARRAY (one record per matched row) rather than one record ; Array(...) is wrong here (it would explode a plain record Hash into its own key/value pairs), so the two shapes are told apart explicitly.



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# File 'lib/hecks/runtime/policy_interpreter.rb', line 26

def react(event, domain)
  policies_for(event).each do |policy, home_domain|
    result = deliver(policy, event, home_domain)
    next if result.nil?

    (result.is_a?(Array) ? result : [result]).each { |record| @registry.reaction_log << record }
  end
end