Class: Fog::Service

Inherits:
Object
  • Object
show all
Defined in:
lib/fog/core/service.rb

Defined Under Namespace

Modules: Collections Classes: Error, NotFound

Class Method Summary collapse

Class Method Details

.collection(new_collection) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 108

def collection(new_collection)
  collections << new_collection
end

.collections ⇒ Object 



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# File 'lib/fog/core/service.rb', line 112

def collections
  @collections ||= []
end

.inherited(child) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 41

def inherited(child)
  child.class_eval <<-EOS, __FILE__, __LINE__
    module Collections
      include Fog::Service::Collections

      def service
        #{child}
      end
    end

    def self.service
      #{child}
    end
  EOS
end

.inject_parameter_specs ⇒ Object

this is to accomodate Real implementations of Service subclasses NOTE: it might be good to enforce parameter specs to Mock classes as well.



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# File 'lib/fog/core/service.rb', line 23

def inject_parameter_specs
  lambda do |spec|
    implementation = "Real"
    self.const_set(implementation, Class.new) unless self.const_defined? implementation
    realclass = self.const_get implementation

    if realclass.declared_parameters_for(:'self.new', :required).empty?
      required = declared_parameters_for(:'self.new', :required)
      realclass.send(:requires, *required)
    end
  
    if realclass.declared_parameters_for(:'self.new', :optional).empty?
      optional = declared_parameters_for(:'self.new', :optional)
      realclass.send(:recognizes, *optional) 
    end
  end
end

.model(new_model) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 116

def model(new_model)
  models << new_model
end

.model_path(new_path) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 104

def model_path(new_path)
  @model_path = new_path
end

.models ⇒ Object 



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# File 'lib/fog/core/service.rb', line 120

def models
  @models ||= []
end

.new(options = {}) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 61

def new(options={})
  if Fog.bin
    default_credentials = filter_parameters(Fog.credentials)
    options = default_credentials.merge(options)
  end

  setup_requirements

  if Fog.mocking?
    service::Mock.send(:include, service::Collections)
    service::Mock.new(options)
  else
    service::Real.send(:include, service::Collections)
    service::Real.new(options)
  end
end

.request(new_request) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 128

def request(new_request)
  requests << new_request
end

.request_path(new_path) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 124

def request_path(new_path)
  @request_path = new_path
end

.requests ⇒ Object 



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# File 'lib/fog/core/service.rb', line 132

def requests
  @requests ||= []
end

.requirements ⇒ Object 



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# File 'lib/fog/core/service.rb', line 57

def requirements
  declared_parameters_for :'self.new', :required
end

.reset_data(keys = Mock.data.keys) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 136

def reset_data(keys=Mock.data.keys)
  Mock.reset_data(keys)
end

.setup_requirements ⇒ Object 



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# File 'lib/fog/core/service.rb', line 78

def setup_requirements
  if superclass.respond_to?(:setup_requirements)
    superclass.setup_requirements
  end

  @required ||= false
  unless @required
    for collection in collections
      require [@model_path, collection].join('/')
      constant = collection.to_s.split('_').map {|characters| characters[0...1].upcase << characters[1..-1]}.join('')
      service::Collections.module_eval <<-EOS, __FILE__, __LINE__
        def #{collection}(attributes = {})
          #{service}::#{constant}.new({:connection => self}.merge(attributes))
        end
      EOS
    end
    for model in models
      require [@model_path, model].join('/')
    end
    for request in requests
      require [@request_path, request].join('/')
    end
    @required = true
  end
end