Class: CloudBuilder::Resource

Inherits:
Object
  • Object
show all
Includes:
ExposesRefs
Defined in:
lib/cloud_builder/resource.rb

Instance Method Summary collapse

Methods included from ExposesRefs

#base64, #get_att, #join, #ref

Constructor Details

#initialize(stack, name, &block) ⇒ Resource

Returns a new instance of Resource.



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# File 'lib/cloud_builder/resource.rb', line 6

def initialize(stack, name, &block)
  @stack   = stack
  @type       = nil
  @properties = {}
  @metadata = {}
  @block = block
  @deletion_policy = nil
  @update_policy = nil
  @depends_on = nil
  
  # add metadata describing the brick we were defined in
  if @block.binding.eval('@type')
    metadata do 
      brick_name @block.binding.eval('@type')
    end
  end
  
  instance_eval(&block)
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(field, *params) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 102

def method_missing(field, *params)
  if @stack.reference_type(field.to_s) == :map
    Reference::Map.new(field)
  else
    @current_map[DSL.format(field)] = DSL.jsonize(params.first)
  end
end

Instance Method Details

#brick ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 60

def brick
  @block.binding.eval('brick')
end

#deletion_policy(value) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 48

def deletion_policy(value)
  @deletion_policy = value
end

#depends_on(value) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 52

def depends_on(value)
  @depends_on = value
end

#globals ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 64

def globals 
  @stack.globals
end

#metadata ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 41

def metadata
  old_map = @current_map
  @current_map = @metadata
  yield
  @current_map = old_map
end

#properties ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 34

def properties
  old_map = @current_map
  @current_map = @properties
  yield
  @current_map = old_map
end

#tags(tag_map, propagate = nil) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 68

def tags(tag_map, propagate = nil)
  list = @current_map[TAGS] ||= []
  tag_map = Hash[tag_map.map { |key, value| [key.to_s, value] }]
  tag_map.keys.sort.each do |key|
    if propagate.nil?
      list << {KEY => DSL.format(key), VALUE => DSL.jsonize(tag_map[key])}
    else
      list << {KEY => DSL.format(key), VALUE => DSL.jsonize(tag_map[key]), PROPAGATE_AT_LAUNCH => propagate }
    end
  end
end

#to_json_data ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 80

def to_json_data
  ret = {TYPE => @type, METADATA => @metadata, PROPERTIES => @properties}
  
  if @version
    ret["Version"] = @version
  end
  
  if @deletion_policy
    ret[DELETION_POLICY] = @deletion_policy
  end

  if @depends_on
    ret[DEPENDS_ON] = @depends_on
  end
  
  if @update_policy
    ret[UPDATE_POLICY] = @update_policy
  end

  ret     
end

#type(value) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 26

def type(value)
  @type = value
end

#update_policy(value) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 56

def update_policy(value)
  @update_policy = value
end

#version(value) ⇒ Object 



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# File 'lib/cloud_builder/resource.rb', line 30

def version(value)
  @version = value
end