Class: Puppet::Parser::Relationship

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/parser/relationship.rb

Constant Summary collapse

PARAM_MAP = 
{:relationship => :before, :subscription => :notify}

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, target, type) ⇒ Relationship

Returns a new instance of Relationship.



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# File 'lib/puppet/parser/relationship.rb', line 26

def initialize(source, target, type)
  @source, @target, @type = source, target, type
end

Instance Attribute Details

#source ⇒ Object

Returns the value of attribute source.



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# File 'lib/puppet/parser/relationship.rb', line 2

def source
  @source
end

#target ⇒ Object

Returns the value of attribute target.



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# File 'lib/puppet/parser/relationship.rb', line 2

def target
  @target
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/puppet/parser/relationship.rb', line 2

def type
  @type
end

Instance Method Details

#arrayify(resources, left) ⇒ Object 



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# File 'lib/puppet/parser/relationship.rb', line 6

def arrayify(resources, left)
  case resources
  when Puppet::Pops::Evaluator::Collectors::AbstractCollector
    # on the LHS, go as far left as possible, else whatever the collected result is
    left ? leftmost_alternative(resources) : resources.collected.values
  when Array
    resources
  else
    [resources]
  end
end

#evaluate(catalog) ⇒ Object 



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# File 'lib/puppet/parser/relationship.rb', line 18

def evaluate(catalog)
  arrayify(source, true).each do |s|
    arrayify(target, false).each do |t|
      mk_relationship(s, t, catalog)
    end
  end
end

#mk_relationship(source, target, catalog) ⇒ Object 



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# File 'lib/puppet/parser/relationship.rb', line 34

def mk_relationship(source, target, catalog)
  source_ref = canonical_ref(source)
  target_ref = canonical_ref(target)
  rel_param = param_name

  unless source_resource = catalog.resource(*source_ref)
    raise ArgumentError, _("Could not find resource '%{source}' for relationship on '%{target}'") % { source: source.to_s, target: target.to_s }
  end
  unless catalog.resource(*target_ref)
    raise ArgumentError, _("Could not find resource '%{target}' for relationship from '%{source}'") % { target: target.to_s, source: source.to_s }
  end
  Puppet.debug {"Adding relationship from #{source} to #{target} with '#{param_name}'"}
  if source_resource[rel_param].class != Array
    source_resource[rel_param] = [source_resource[rel_param]].compact
  end
  source_resource[rel_param] << (target_ref[1].nil? ? target_ref[0] : "#{target_ref[0]}[#{target_ref[1]}]")
end

#param_name ⇒ Object 



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# File 'lib/puppet/parser/relationship.rb', line 30

def param_name
  PARAM_MAP[type] || raise(ArgumentError, _("Invalid relationship type %{relationship_type}") % { relationship_type: type })
end