Class: Puppet::Parser::AST::Resource

Inherits:
ResourceReference show all
Defined in:
lib/puppet/parser/ast/resource.rb

Direct Known Subclasses

ResourceOverride

Constant Summary

Constants inherited from Puppet::Parser::AST

AST

Instance Attribute Summary collapse

Attributes inherited from Branch

#children, #pin

Attributes inherited from Puppet::Parser::AST

#parent, #scope

Attributes included from Util::Docs

#doc, #nodoc

Attributes included from FileCollection::Lookup

#file_index, #line

Instance Method Summary collapse

Methods inherited from ResourceReference

#to_s

Methods inherited from Branch

#each, #initialize

Methods inherited from Puppet::Parser::AST

associates_doc, #evaluate_match, #initialize, #inspect, #parsefail, #parsewrap, #safeevaluate, settor?, #use_docs

Methods included from Util::Docs

#desc, #dochook, #doctable, #nodoc?, #pad, scrub

Methods included from Util::MethodHelper

#requiredopts, #set_options, #symbolize_options

Methods included from Util::Errors

#adderrorcontext, #devfail, #error_context, #exceptwrap, #fail

Methods included from FileCollection::Lookup

#file, #file=, #file_collection

Constructor Details

This class inherits a constructor from Puppet::Parser::AST::Branch

Instance Attribute Details

#exported ⇒ Object

Returns the value of attribute exported.



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# File 'lib/puppet/parser/ast/resource.rb', line 10

def exported
  @exported
end

#parameters ⇒ Object

Returns the value of attribute parameters.



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# File 'lib/puppet/parser/ast/resource.rb', line 11

def parameters
  @parameters
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/puppet/parser/ast/resource.rb', line 10

def title
  @title
end

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/puppet/parser/ast/resource.rb', line 10

def type
  @type
end

#virtual ⇒ Object

Returns the value of attribute virtual.



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# File 'lib/puppet/parser/ast/resource.rb', line 10

def virtual
  @virtual
end

Instance Method Details

#evaluate(scope) ⇒ Object

Does not actually return an object; instead sets an object in the current scope.



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# File 'lib/puppet/parser/ast/resource.rb', line 15

def evaluate(scope)
  # Evaluate all of the specified params.
  paramobjects = parameters.collect { |param|
    param.safeevaluate(scope)
  }

  resource_titles = @title.safeevaluate(scope)

  # it's easier to always use an array, even for only one name
  resource_titles = [resource_titles] unless resource_titles.is_a?(Array)

  # We want virtual to be true if exported is true.  We can't
  # just set :virtual => self.virtual in the initialization,
  # because sometimes the :virtual attribute is set *after*
  # :exported, in which case it clobbers :exported if :exported
  # is true.  Argh, this was a very tough one to track down.
  virt = self.virtual || self.exported

  # This is where our implicit iteration takes place; if someone
  # passed an array as the name, then we act just like the called us
  # many times.
  fully_qualified_type, resource_titles = scope.resolve_type_and_titles(type, resource_titles)

  resource_titles.flatten.collect { |resource_title|
    exceptwrap :type => Puppet::ParseError do
      resource = Puppet::Parser::Resource.new(
        fully_qualified_type, resource_title,
        :parameters => paramobjects,
        :file => self.file,
        :line => self.line,
        :exported => self.exported,
        :virtual => virt,
        :source => scope.source,
        :scope => scope,
        :strict => true
      )

      if resource.resource_type.is_a? Puppet::Resource::Type
        resource.resource_type.instantiate_resource(scope, resource)
      end
      scope.compiler.add_resource(scope, resource)
      scope.compiler.evaluate_classes([resource_title],scope,false) if fully_qualified_type == 'class'
      resource
    end
  }.reject { |resource| resource.nil? }
end