Class: Jets::Cfn::Resource::Nested::AppClass

Inherits:
Base
  • Object
show all
Defined in:
lib/jets/cfn/resource/nested/app_class.rb

Direct Known Subclasses

Shared

Instance Method Summary collapse

Methods inherited from Base

#template_filename, #template_url

Methods inherited from Base

#attributes, #logical_id, #permission, #properties, #replacements, #replacer, #standarize, #template, truncate_id, #type

Methods included from Util::Camelize

#camelize

Constructor Details

#initialize(options = {}) ⇒ AppClass 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 3

def initialize(options={})
  super
  @path = options[:path]
end

Instance Method Details

#add_stagger_depends_on(stacks) ⇒ Object

For staggering. We’re abusing depends_on to slow down the update rate.

For this type of depends_on, there are no template parameters or outputs. To use the normal depends at we would have to make app classes adhere to what Jets::Stack::Depends requires. This is mainly dependency_outputs and output_keys for each class right now. It would not be that difficult but is not needed. So we create the Jets::Stack::Depends::Item objects directly.



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 43

def add_stagger_depends_on(stacks)
  stack_names = stacks.map { |s| s.current_app_class.to_s.underscore }
  items = stack_names.map { |name| Jets::Stack::Depends::Item.new(name) }
  @stagger_depends_on ||= []
  @stagger_depends_on += items.flatten
end

#all_depends_on ⇒ Object

Always returns an Array, could be empty



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 31

def all_depends_on
  depends_on = current_app_class.depends_on || [] # contains Depends::Items
  stagger_depends_on = @stagger_depends_on  || [] # contains Depends::Items
  depends_on + stagger_depends_on
end

#app_logical_id ⇒ Object

map the path to a camelized logical_id. Example:

/tmp/jets/demo/templates/demo-dev-2-posts_controller.yml to
PostsController



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 110

def app_logical_id
  regexp = Regexp.new(".*#{Jets::Names.templates_folder}/app-")
  controller_name = @path.sub(regexp, '').sub('.yml', '')
  controller_name.underscore.camelize
end

#authorizer_output(desc) ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 76

def authorizer_output(desc)
  authorizer_stack, authorizer_logical_id = desc.split('.')
  # IE: MainAuthorizer.Outputs.ProtectAuthorizer
  "#{authorizer_stack}.Outputs.#{authorizer_logical_id}"
end

#controller? ⇒ Boolean 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 90

def controller?
  @path.include?('_controller.yml')
end

#controller_params ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 57

def controller_params
  return {} if Jets::Router.no_routes?

  params = {
    RestApi: "!GetAtt ApiGateway.Outputs.RestApi",
  }

  template_path = @path
  template = Jets::Cfn::Template.load_file(template_path)
  template[:Parameters].each do |p,data|
    case p
    when /Authorizer$/ # AWS::ApiGateway::Authorizer in authorizers templates. IE: demo-dev-authorizers.yml
      # Description contains metadata to get the Authorizer logical id
      params[p] = "!GetAtt #{authorizer_output(data[:Description])}"
    end
  end
  params
end

#current_app_class ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 98

def current_app_class
  templates_prefix = "#{Jets::Names.templates_folder}/app-"
  @path.sub(templates_prefix, '')
    .sub(/\.yml$/,'')
    .gsub('-','/')
    .camelize
    .constantize
end

#definition ⇒ Object

interface method



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 9

def definition
  logical_id = app_logical_id
  defintion = {
    logical_id => {
      Type: "AWS::CloudFormation::Stack",
      Properties: {
        TemplateURL: template_url,
        Parameters: parameters,
      }
    }
  }
  defintion[logical_id][:DependsOn] = depends.stack_list if depends
  defintion
end

#depends ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 24

def depends
  return if all_depends_on.empty?
  Jets::Stack::Depends.new(all_depends_on)
end

#job? ⇒ Boolean 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 94

def job?
  @path.include?('_job.yml')
end

#outputs ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 82

def outputs
  if controller? or job?
    {}
  else
    super # { logical_id => "!Ref #{logical_id}" } in base.rb
  end
end

#parameters ⇒ Object 



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# File 'lib/jets/cfn/resource/nested/app_class.rb', line 50

def parameters
  params = Jets::Cfn::Params::Common.parameters
  params.merge!(controller_params) if controller?
  params.merge!(depends.params) if depends
  params
end