Class: Miasma::Models::Orchestration::Stack::Resource

Inherits:

Types::Model

• Object
• Types::Data
• Types::Model
• Miasma::Models::Orchestration::Stack::Resource

show all

Includes:

Utils::Immutable

Defined in:

lib/miasma/models/orchestration/resource.rb

Overview

Instance Attribute Summary (collapse)

• - (Miasma::Types::Api) api inherited from Types::Model readonly

  Underlying service API.

• - (Object) stack readonly

  Returns the value of attribute stack.

Instance Method Summary (collapse)

• - (Miasma::Types::Model) dereference

  Provides mapped resource class.

• - (Miasma::Types::Model) expand (also: #instance)

  Provide proper instance from resource.

• - (Object) frozen_valid_state(*args) included from Utils::Immutable

  Freezes underlying data hash.

• - (Resource) initialize(stack, args = {}) constructor

  A new instance of Resource.

• - (Object) perform_reload

  Proxy reload action up to the API.

• - (Object) save included from Utils::Immutable
• - (TrueClass, FalseClass) within?(api, collection)

  Resource is within the collection on the api.

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# File 'lib/miasma/models/orchestration/resource.rb', line 21

def initialize(stack, args={})
  @stack = stack
  super stack.api, args
end

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# File 'lib/miasma/models/orchestration/resource.rb', line 19

def stack
  @stack
end

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# File 'lib/miasma/models/orchestration/resource.rb', line 27

def dereference
  # Insert provider to namespace
  provider_const = self.class.name.split('::').insert(3, Utils.camel(api.provider))
  provider_const.slice!(-2, 2)
  # Insert mapping constant name and fetch
 const = provider_const.push(:RESOURCE_MAPPING).inject(Object) do |memo, konst|
    res = memo.const_get(konst)
    break unless res
    res
  end
  unless(const[self.type])
    raise KeyError.new "Failed to locate requested mapping! (`#{self.type}`)"
  end
  const[self.type]
end

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# File 'lib/miasma/models/orchestration/resource.rb', line 46

def expand
  info = dereference
  api.api_for(info[:api]).send(info[:collection]).get(self.id)
end

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# File 'lib/miasma/models/orchestration/resource.rb', line 53

def perform_reload
  api.resource_reload(self)
end

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# File 'lib/miasma/models/orchestration/resource.rb', line 62

def within?(api, collection)
  begin
    info = dereference
    info[:api] == api &&
      info[:collection] == collection
  rescue KeyError
    false
  end
end