Module: PoolParty::DefinableResource

Included in:
Object
Defined in:
lib/poolparty/modules/definable_resource.rb

Instance Method Summary collapse

Instance Method Details

#define_resource(name, &block) ⇒ Object

Define a new resource that can be called like any other resource Similar to any other resource (like file or exec) but you define it how you want it to work Example:

define_resource(:line_in_file) do end

Within the block, you can define any methods you want to run as part of the resource

One thing to note is that this is NOT like other resources in the sense that it does not give you any extra methods like the resources do

For example usage, see lib/poolparty/plugins/line.rb



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# File 'lib/poolparty/modules/definable_resource.rb', line 18

def define_resource(name, &block)
  symc = "#{name}".classify
  klass = symc.class_constant(PoolParty::Resources::CustomResource, {:preserve => true}, &block)
  PoolParty::Resources.module_eval &block
  klass
end

#virtual_resource(name = :virtual_resource, opts = {}, &block) ⇒ Object

Allow us to create virtual resources Generally, in plugins This sets a virtual resource against the Resource class Example:

virtual_resource(:virtualhost) do
end

This defines a virtualhost as a virtual resource and consequently gives the methods has_virtualhost and does_not_have_virtualhost

Note that you can define any resources within the virtual resource within the definition or the call. Call example: has_virtualhost do
name "xnot.org" end

Which sets the virtual host's name as xnot.org

This is included in the poolparty-apache-plugin



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# File 'lib/poolparty/modules/definable_resource.rb', line 46

def virtual_resource(name=:virtual_resource, opts={}, &block)
  symc = "#{name}".classify
  eval <<-EOE
    class PoolParty::Resources::#{symc} < PoolParty::Resources::Resource
    end
  EOE
  klass = "PoolParty::Resources::#{symc}".constantize
  klass.module_eval &block if block
  klass.send :define_method, :virtual_resource?, Proc.new{true}
  klass
end