Class: FlapjackConfigurator::EntityMapper

Inherits:
Object
  • Object
show all
Defined in:
lib/flapjack_configurator/entity_mapper.rb

Overview

Walk though the entities and build the map of entities to contacts Built as a class for future proofing and because this is expected to be an expensive operation: so instantiate it once and pass it around.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config_obj, diner) ⇒ EntityMapper

Returns a new instance of EntityMapper.



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# File 'lib/flapjack_configurator/entity_mapper.rb', line 11

def initialize(config_obj, diner)
  @entity_map = {}.tap { |em| config_obj.contact_ids.each { |cn| em[cn.to_sym] = [] } }
  default_contacts = config_obj.default_contacts

  # Walk the entities and compare each individually so that the whitelisting/blacklisting can be easily enforced
  # This probably will need some optimization
  diner.entities.each do |entity|
    contact_defined = false
    config_obj.contact_ids.each do |contact_id|
      match_id = _check_entity(entity, config_obj.contact_config(contact_id))
      if match_id
        @entity_map[contact_id.to_sym].push(entity[:id])
        contact_defined = true
      end
    end

    # ALL is a special case entity, don't associate the default to it.
    # Using next if per Rubocop :)
    next if contact_defined || entity[:id] == 'ALL'
    # No contacts match this entity, add it to the defaults
    default_contacts.each do |contact_id|
      @entity_map[contact_id.to_sym].push(entity[:id])
    end
  end

  return @entity_map
end

Instance Attribute Details

#entity_map ⇒ Object (readonly)

Returns the value of attribute entity_map.



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# File 'lib/flapjack_configurator/entity_mapper.rb', line 9

def entity_map
  @entity_map
end

Instance Method Details

#_check_entity(entity, contact) ⇒ Object

Check if entity should be included in contact Helper for _build_entity_map Returns the entity ID on match or nil on no match



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# File 'lib/flapjack_configurator/entity_mapper.rb', line 42

def _check_entity(entity, contact)
  # Priority 1: Exact Entries
  return true if contact['entities']['exact'].include? entity[:name]

  # Priority 2: Exact blacklist
  return false if contact['entities_blacklist']['exact'].include? entity[:name]

  # Priority 3: Regex blacklist
  contact['entities_blacklist']['regex'].each do |bl_regex|
    return false if /#{bl_regex}/.match(entity[:name])
  end

  # Priority 4: Match regex
  contact['entities']['regex'].each do |m_regex|
    return true if /#{m_regex}/.match(entity[:name])
  end

  # Fallthrough
  return false
end

#entities_for_contact(id) ⇒ Object

Return the entities for the given contact Returns a clone so the returned object is modifyable



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# File 'lib/flapjack_configurator/entity_mapper.rb', line 65

def entities_for_contact(id)
  fail("ID #{id} not in entity map") unless @entity_map.key? id.to_sym
  return DeepClone.clone @entity_map[id.to_sym]
end