Class: Cisco::ChefUtils

Inherits:
Object
  • Object
show all
Defined in:
lib/cisco_node_utils/cisco_cmn_utils.rb

Overview

ChefUtils - helper class for Chef code generation

Class Method Summary collapse

Class Method Details

.generic_prop_set(klass, rlbname, props) ⇒ Object 



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# File 'lib/cisco_node_utils/cisco_cmn_utils.rb', line 63

def self.generic_prop_set(klass, rlbname, props)
  props.each do |prop|
    klass.instance_eval do
      # Helper Chef setter method, e.g.:
      #   if @new_resource.foo.nil?
      #     def_prop = @rlb.default_foo
      #     @new_resource.foo(def_prop)
      #   end
      #   current = @rlb.foo
      #   if current != @new_resource.foo
      #     converge_by("update foo '#{current}' => " +
      #                 "'#{@new_resource.foo}'") do
      #       @rlb.foo=(@new_resource.foo)
      #     end
      #   end
      if @new_resource.send(prop).nil?
        def_prop = instance_variable_get(rlbname).send("default_#{prop}")
        # Set resource to default if recipe property is not specified
        @new_resource.send(prop, def_prop)
      end
      current = instance_variable_get(rlbname).send(prop)
      if current != @new_resource.send(prop)
        converge_by("update #{prop} '#{current}' => " \
                    "'#{@new_resource.send(prop)}'") do
          instance_variable_get(rlbname).send("#{prop}=",
                                              @new_resource.send(prop))
        end
      end
    end
  end
end