Class: Puppet::ResourceApi::Property

Inherits:
Property
  • Object
show all
Defined in:
lib/puppet/resource_api/property.rb

Overview

Class containing property functionality for ResourceApi.

Instance Method Summary collapse

Constructor Details

#initialize(type_name, data_type, attribute_name, resource_hash, referrable_type = nil) ⇒ Property

This initialize takes arguments and sets up new property. parent class.

Parameters:

  • the name of the Puppet Type

  • the data type of property instance

  • the name of attribue of the property

  • the resource hash instance which is passed to the



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# File 'lib/puppet/resource_api/property.rb', line 16

def initialize(type_name, data_type, attribute_name, resource_hash, referrable_type = nil)
  @type_name = type_name
  @data_type = data_type
  @attribute_name = attribute_name
  @resource = resource_hash[:resource]
  @referrable_type = referrable_type

  # Do not want to define insync on the base class because
  # this overrides for everything instead of only for the
  # appropriate instance/class of the property.
  if self.class != Puppet::ResourceApi::Property
    # Define class method insync?(is) if the custom_insync feature flag is set
    if referrable_type&.type_definition&.feature?('custom_insync')
      def_custom_insync?
      @change_to_s_value = 'Custom insync logic determined that this resource is out of sync' if @attribute_name == :rsapi_custom_insync_trigger
    # Define class method insync?(is) if the name is :ensure and custom_insync feature flag is not set
    elsif @attribute_name == :ensure
      def_ensure_insync?
    end
  end

  # Pass resource to parent Puppet class.
  super(**resource_hash)
end

Instance Method Details

#call_provider(_value) ⇒ Object

stop puppet from trying to call into the provider when no pre-defined values have been specified “This is not the provider you are looking for.” – Obi-Wan Kaniesobi.



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# File 'lib/puppet/resource_api/property.rb', line 140

def call_provider(_value); end

#def_custom_insync? ⇒ Boolean

Returns:



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# File 'lib/puppet/resource_api/property.rb', line 91

def def_custom_insync?
  define_singleton_method(:insync?) do |is|
    provider    = @referrable_type.my_provider
    context     = @referrable_type.context
    should_hash = @resource.rsapi_canonicalized_target_state
    is_hash     = @resource.rsapi_current_state
    title       = @resource.rsapi_title

    raise(Puppet::DevError, 'No insync? method defined in the provider; an insync? method must be defined if the custom_insync feature is defined for the type') unless provider.respond_to?(:insync?)

    provider_insync_result, change_message = provider.insync?(context, title, @attribute_name, is_hash, should_hash)

    @change_to_s_value = change_message unless provider_insync_result.nil? || change_message.nil? || change_message.empty?

    case provider_insync_result
    when nil
      # If validating ensure and no custom insync was used, check if rs_value matches is.
      return rs_value.to_s == is.to_s if @attribute_name == :ensure

      # Otherwise, super and rely on Puppet::Property.insync?
      super(is)
    when TrueClass, FalseClass
      provider_insync_result
    else
      # When returning anything else, raise a DevError for a non-idiomatic return
      raise(Puppet::DevError, "Custom insync for #{@attribute_name} returned a #{provider_insync_result.class} with a value of #{provider_insync_result.inspect} instead of true/false; insync? MUST return nil or the boolean true or false") # rubocop:disable Layout/LineLength
    end
  end

  define_singleton_method(:change_to_s) do |current_value, newvalue|
    # As defined in the custom insync? method, it is sometimes useful to overwrite the default change messaging;
    # The enables a user to return a more useful change report than a strict "is to should" report.
    # If @change_to_s_value is not set, Puppet writes a generic change notification, like:
    #   Notice: /Stage[main]/Main/<type_name>[<name_hash>]/<property name>: <property name> changed <is value> to <should value>
    # If #change_to_s_value is *nil* Puppet writes a weird empty message like:
    #   Notice: /Stage[main]/Main/<type_name>[<name_hash>]/<property name>:
    @change_to_s_value || super(current_value, newvalue)
  end
end

#def_ensure_insync? ⇒ Boolean

method overloaded only for the :ensure property, add option to check if the rs_value matches is. Only if the class is child of Puppet::ResourceApi::Property.

Returns:



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# File 'lib/puppet/resource_api/property.rb', line 87

def def_ensure_insync?
  define_singleton_method(:insync?) { |is| rs_value.to_s == is.to_s }
end

#rs_value ⇒ Object

used internally



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# File 'lib/puppet/resource_api/property.rb', line 80

def rs_value
  @should ? @should.first : @should
end

#should ⇒ type

This method returns value of the property.

Returns:

  • the property value



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# File 'lib/puppet/resource_api/property.rb', line 43

def should
  if @attribute_name == :ensure && rs_value.is_a?(String)
    rs_value.to_sym
  elsif rs_value == false
    # work around https://tickets.puppetlabs.com/browse/PUP-2368
    :false # rubocop:disable Lint/BooleanSymbol
  elsif rs_value == true
    # work around https://tickets.puppetlabs.com/browse/PUP-2368
    :true # rubocop:disable Lint/BooleanSymbol
  else
    rs_value
  end
end

#should=(value) ⇒ type

This method sets and returns value of the property and sets @shouldorig.

Parameters:

  • the value to be set and clean

Returns:

  • the property value



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# File 'lib/puppet/resource_api/property.rb', line 60

def should=(value)
  @shouldorig = value

  value = value.to_s if @attribute_name == :ensure

  # Puppet requires the @should value to always be stored as an array. We do not use this
  # for anything else
  # @see Puppet::Property.should=(value)
  @should = [
    Puppet::ResourceApi::DataTypeHandling.mungify(
      @data_type,
      value,
      "#{@type_name}.#{@attribute_name}",
      Puppet::ResourceApi.caller_is_resource_app?
    )
  ]
end