Class: Fog::Service

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

Direct Known Subclasses

AWS::AutoScaling, AWS::CloudFormation, AWS::CloudWatch, AWS::DataPipeline, AWS::DynamoDB, AWS::ELB, AWS::EMR, AWS::ElasticBeanstalk, AWS::Elasticache, AWS::Glacier, AWS::IAM, AWS::RDS, AWS::SES, AWS::SNS, AWS::SQS, AWS::STS, AWS::SimpleDB, Account::StormOnDemand, Billing::StormOnDemand, Bluebox::BLB, CDN::AWS, CDN::HP, CDN::Rackspace, Compute::AWS, Compute::BareMetalCloud, Compute::Bluebox, Compute::Brightbox, Compute::Clodo, Compute::CloudSigma, Compute::Cloudstack, Compute::DigitalOcean, Compute::Ecloud, Compute::Glesys, Compute::GoGrid, Compute::Google, Compute::HP, Compute::IBM, Compute::Joyent, Compute::Libvirt, Compute::Linode, Compute::Ninefold, Compute::OpenStack, Compute::Openvz, Compute::Ovirt, Compute::Rackspace, Compute::RackspaceV2, Compute::Serverlove, Compute::StormOnDemand, Compute::Vmfusion, Compute::Voxel, Compute::Vsphere, Compute::XenServer, DNS::AWS, DNS::Bluebox, DNS::DNSMadeEasy, DNS::DNSimple, DNS::Dreamhost, DNS::Dynect, DNS::Linode, DNS::Rackspace, DNS::StormOnDemand, DNS::Zerigo, HP::BlockStorage, Identity::OpenStack, Image::OpenStack, Metering::OpenStack, Monitoring::StormOnDemand, Network::OpenStack, Network::StormOnDemand, Rackspace::BlockStorage, Rackspace::Databases, Rackspace::Identity, Rackspace::LoadBalancers, Rackspace::Monitoring, RiakCS::Provisioning, RiakCS::Usage, Fog::Storage::AWS, Fog::Storage::Atmos, Fog::Storage::Google, Fog::Storage::HP, Fog::Storage::IBM, Fog::Storage::InternetArchive, Fog::Storage::Local, Fog::Storage::OpenStack, Fog::Storage::Rackspace, Fog::Storage::StormOnDemand, Fog::Support::StormOnDemand, VPN::StormOnDemand, Vcloud::Compute, Volume::OpenStack

Defined Under Namespace

Modules: Collections, NoLeakInspector Classes: Error, NotFound

Class Method Summary collapse

Class Method Details

.coerce_options(options) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 129

def coerce_options(options)
  options.each do |key, value|
    value_string = value.to_s.downcase
    if value.nil?
      options.delete(key)
    elsif value == value_string.to_i.to_s
      options[key] = value.to_i
    else
      options[key] = case value_string
      when 'false'
        false
      when 'true'
        true
      else
        value
      end
    end
  end
end

.collection(new_collection) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 121

def collection(new_collection)
  collections << new_collection
end

.collections ⇒ Object 



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# File 'lib/fog/core/service.rb', line 125

def collections
  @collections ||= []
end

.fetch_credentials(options) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 72

def fetch_credentials(options)
  # attempt to load credentials from config file
  begin
    Fog.credentials.reject {|key, value| !(recognized | requirements).include?(key)}
  rescue LoadError
    # if there are no configured credentials, do nothing
    {}
  end
end

.inherited(child) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 36

def inherited(child)
  child.class_eval <<-EOS, __FILE__, __LINE__
    class Error < Fog::Service::Error; end
    class NotFound < Fog::Service::NotFound; end

    module Collections
      include Fog::Service::Collections

      def service
        #{child}
      end
    end

    def self.service
      #{child}
    end
  EOS
end

.mocked_requests ⇒ Object 



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# File 'lib/fog/core/service.rb', line 149

def mocked_requests
  @mocked_requests ||= []
end

.model(new_model) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 153

def model(new_model)
  models << new_model
end

.model_path(new_path) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 117

def model_path(new_path)
  @model_path = new_path
end

.models ⇒ Object 



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# File 'lib/fog/core/service.rb', line 157

def models
  @models ||= []
end

.new(options = {}) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 55

def new(options={})
  options = Fog.symbolize_credentials(options)
  options = fetch_credentials(options).merge(options)
  validate_options(options)
  coerce_options(options)
  setup_requirements

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

.recognized ⇒ Object 



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# File 'lib/fog/core/service.rb', line 195

def recognized
  @recognized ||= [:connection_options]
end

.recognizes(*args) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 191

def recognizes(*args)
  recognized.concat(args)
end

.request(new_request) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 165

def request(new_request)
  requests << new_request
end

.request_path(new_path) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 161

def request_path(new_path)
  @request_path = new_path
end

.requests ⇒ Object 



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# File 'lib/fog/core/service.rb', line 169

def requests
  @requests ||= []
end

.requirements ⇒ Object 



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# File 'lib/fog/core/service.rb', line 187

def requirements
  @requirements ||= []
end

.requires(*args) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 183

def requires(*args)
  requirements.concat(args)
end

.secrets(*args) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 173

def secrets(*args)
  if args.empty?
    @secrets ||= []
  else
    args.inject(secrets) do |secrets, secret|
      secrets << "@#{secret}".to_sym
    end
  end
end

.setup_requirements ⇒ Object 



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# File 'lib/fog/core/service.rb', line 82

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({:service => 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('/')
      if service::Mock.method_defined?(request)
        mocked_requests << request
      else
        service::Mock.module_eval <<-EOS, __FILE__, __LINE__
          def #{request}(*args)
            Fog::Mock.not_implemented
          end
        EOS
      end
    end
    @required = true
  end
end

.validate_options(options) ⇒ Object 



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# File 'lib/fog/core/service.rb', line 199

def validate_options(options)
  keys = []
  for key, value in options
    unless value.nil?
      keys << key
    end
  end
  missing = requirements - keys
  unless missing.empty?
    raise ArgumentError, "Missing required arguments: #{missing.join(', ')}"
  end

  unless recognizes.empty?
    unrecognized = options.keys - requirements - recognized
    unless unrecognized.empty?
      raise ArgumentError, "Unrecognized arguments: #{unrecognized.join(', ')}"
    end
  end
end