Class: Chef::ResourceDefinition

Inherits:
Object
  • Object
show all
Includes:
Mixin::FromFile, Mixin::ParamsValidate
Defined in:
lib/chef/resource_definition.rb

Instance Attribute Summary collapse

Attributes included from Mixin::FromFile

#source_file

Instance Method Summary collapse

Methods included from Mixin::ParamsValidate

#lazy, #set_or_return, #validate

Methods included from Mixin::FromFile

#class_from_file, #from_file

Constructor Details

#initialize(node = nil) ⇒ ResourceDefinition

Returns a new instance of ResourceDefinition.



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# File 'lib/chef/resource_definition.rb', line 30

def initialize(node = nil)
  @name = nil
  @params = {}
  @recipe = nil
  @node = node
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(symbol, *args) ⇒ Object

When we do the resource definition, we're really just setting new values for the parameters we prototyped at the top. This method missing is as simple as it gets.



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# File 'lib/chef/resource_definition.rb', line 62

def method_missing(symbol, *args)
  @params[symbol] = args.length == 1 ? args[0] : args
end

Instance Attribute Details

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/chef/resource_definition.rb', line 28

def name
  @name
end

#node ⇒ Object

Returns the value of attribute node.



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# File 'lib/chef/resource_definition.rb', line 28

def node
  @node
end

#params ⇒ Object

Returns the value of attribute params.



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# File 'lib/chef/resource_definition.rb', line 28

def params
  @params
end

#recipe ⇒ Object

Returns the value of attribute recipe.



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# File 'lib/chef/resource_definition.rb', line 28

def recipe
  @recipe
end

Instance Method Details

#define(resource_name, prototype_params = nil, &block) ⇒ Object 



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# File 'lib/chef/resource_definition.rb', line 37

def define(resource_name, prototype_params = nil, &block)
  unless resource_name.is_a?(Symbol)
    raise ArgumentError, "You must use a symbol when defining a new resource!"
  end

  @name = resource_name
  if prototype_params
    unless prototype_params.is_a?(Hash)
      raise ArgumentError, "You must pass a hash as the prototype parameters for a definition."
    end

    @params = prototype_params
  end
  if Kernel.block_given?
    @recipe = block
  else
    raise ArgumentError, "You must pass a block to a definition."
  end
  Chef::DSL::Definitions.add_definition(name)
  true
end

#to_s ⇒ Object 



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# File 'lib/chef/resource_definition.rb', line 66

def to_s
  (name).to_s
end