Class: Jets::Resource::ChildStack::AppClass

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

Direct Known Subclasses

Shared

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#outputs, #template_url

Methods inherited from Base

#replacements, #resource

Constructor Details

#initialize(s3_bucket, options = {}) ⇒ AppClass

Returns a new instance of AppClass.



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# File 'lib/jets/resource/child_stack/app_class.rb', line 8

def initialize(s3_bucket, options={})
  super
  @path = options[:path]
end

Class Method Details

.common_parameters ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 61

def self.common_parameters
  parameters = {
    IamRole: "!GetAtt IamRole.Arn",
    S3Bucket: "!Ref S3Bucket",
  }
  parameters[:GemLayer] = "!Ref GemLayer" unless Jets.poly_only?
  parameters
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/resource/child_stack/app_class.rb', line 47

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/resource/child_stack/app_class.rb', line 35

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

#api_resource_page(parameter) ⇒ Object 



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

def api_resource_page(parameter)
  ApiResource::Page.logical_id(parameter)
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/resource/child_stack/app_class.rb', line 116

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

#controller? ⇒ Boolean

Returns:

  • (Boolean) 


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

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

#controller_params ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 70

def controller_params
  return {} if Jets::Router.routes.empty?

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

  template_path = @path
  template = Jets::Cfn::BuiltTemplate.get(template_path)
  template['Parameters'].keys.each do |p|
    case p
    when /Resource$/ # AWS::ApiGateway::Resource in api-resources templates. IE: demo-dev-api-resources-2.yml
      params[p] = "!GetAtt #{api_resource_page(p)}.Outputs.#{p}"
    when 'RootResourceId'
      params[p] = "!GetAtt ApiGateway.Outputs.RootResourceId"
    end
  end
  params
end

#current_app_class ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 104

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

#definition ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 13

def definition
  logical_id = app_logical_id
  defintion = {
    logical_id => {
      type: "AWS::CloudFormation::Stack",
      properties: {
        template_url: template_url,
        parameters: parameters,
      }
    }
  }
  defintion[logical_id][:depends_on] = depends.stack_list if depends
  defintion
end

#depends ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 28

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

#parameters ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 54

def parameters
  common = self.class.common_parameters
  common.merge!(controller_params) if controller?
  common.merge!(depends.params) if depends
  common
end

#scoped_routes ⇒ Object 



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

def scoped_routes
  @routes ||= Jets::Router.routes.select do |route|
    route.controller_name == current_app_class.to_s
  end
end

#template_filename ⇒ Object 



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# File 'lib/jets/resource/child_stack/app_class.rb', line 122

def template_filename
  @path
end