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fog--fog/lib/fog/core/attributes.rb

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module Fog
module Attributes
module ClassMethods
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def _load(marshalled)
new(Marshal.load(marshalled))
end
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def aliases
@aliases ||= {}
end
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def attributes
@attributes ||= []
end
def attribute(name, options = {})
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class_eval <<-EOS, __FILE__, __LINE__
def #{name}
attributes[:#{name}]
end
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EOS
case options[:type]
when :boolean
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = case new_#{name}
when true,'true'
true
when false,'false'
false
end
end
EOS
when :float
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = new_#{name}.to_f
end
EOS
when :integer
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = new_#{name}.to_i
end
EOS
when :string
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = new_#{name}.to_s
end
EOS
when :time
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = if new_#{name}.nil? || new_#{name} == "" || new_#{name}.is_a?(Time)
new_#{name}
else
Time.parse(new_#{name})
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end
end
EOS
when :array
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = [*new_#{name}]
end
EOS
else
if squash = options[:squash]
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_data)
if new_data.is_a?(Hash)
if new_data.has_key?(:'#{squash}')
attributes[:#{name}] = new_data[:'#{squash}']
elsif new_data.has_key?("#{squash}")
attributes[:#{name}] = new_data["#{squash}"]
else
attributes[:#{name}] = [ new_data ]
end
else
attributes[:#{name}] = new_data
end
end
EOS
else
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = new_#{name}
end
EOS
end
end
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@attributes ||= []
@attributes |= [name]
for new_alias in [*options[:aliases]]
aliases[new_alias] = name
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end
end
def identity(name, options = {})
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@identity = name
self.attribute(name, options)
end
def ignore_attributes(*args)
@ignored_attributes = args
end
def ignored_attributes
@ignored_attributes ||= []
end
end
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module InstanceMethods
def _dump(level)
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Marshal.dump(attributes)
end
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def attributes
@attributes ||= {}
end
def dup
copy = super
copy.dup_attributes!
copy
end
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def identity
send(self.class.instance_variable_get('@identity'))
end
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def identity=(new_identity)
send("#{self.class.instance_variable_get('@identity')}=", new_identity)
end
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def merge_attributes(new_attributes = {})
for key, value in new_attributes
unless self.class.ignored_attributes.include?(key)
if aliased_key = self.class.aliases[key]
send("#{aliased_key}=", value)
elsif self.respond_to?("#{key}=",true)
send("#{key}=", value)
else
attributes[key] = value
end
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end
end
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self
end
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def new_record?
!identity
end
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This is a combination of 23 commits (included merges from upstream); this commit(s) include changes to enforces recognizes/requires parameters for all supported services. Comments from the included commits follow: - Added google_storage_* keys - Fixed indentations. - Factored out requires and recognizes method implementation (now relies on the requires and recognizes clause from the NamedParameters module) - Added dependency to named-parameters gem. - Added recognizes declaration to classes for all supported services to enforce parameter name checks - - passing an unrecognized key when instantiating a service object will now cause an ArgumentError to be raised. - Added NOTE - comment added - check/filter-out keys from credentials that are not required by the class being instantiated - [local|storage] properly write out file contents - Added google_storage_* keys - Fixed indentations. - added put_object_acl request (ref: https://github.com/geemus/fog/issues#issue/74) - Release 0.3.24 - remove tracker reference from README - issues is now the goto for bugs/todo - notify and gracefully skip credential-less testsa - [rackspace|storage] fixes for directory/files - [local|storage] CGI.escape file names - Release 0.3.25 - updated deps; recognized_parameters -> declared_parameters; restored options filtering if Fog.bin - Added requires/recognizes to Fog::Terremark::Ecloud - Updted to use latest named-parameters gem. - Filter out unwanted parameters when Fog.bin - Updated to latest named-parameters gem - commented out unnecessary code - fix missing "volume" parameter error when setting Fog::AWS::Volume#server to nil (in order to detach it) - documentation update for key_pairs and helper - [aws|compute] commented/documented flavors/volumes - Fixes for issue 38 and 39 Closes #96
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# check that the attributes specified in args exist and is not nil
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def requires(*args)
missing = missing_attributes(args)
if missing.length == 1
raise(ArgumentError, "#{missing.first} is required for this operation")
elsif missing.any?
raise(ArgumentError, "#{missing[0...-1].join(", ")} and #{missing[-1]} are required for this operation")
end
end
def requires_one(*args)
missing = missing_attributes(args)
if missing.length == args.length
raise(ArgumentError, "#{missing[0...-1].join(", ")} or #{missing[-1]} are required for this operation")
end
end
protected
def missing_attributes(args)
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missing = []
for arg in [:connection] | args
unless send("#{arg}") || attributes.has_key?(arg)
missing << arg
end
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end
missing
end
def dup_attributes!
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@attributes = @attributes.dup if @attributes
end
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private
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def remap_attributes(attributes, mapping)
for key, value in mapping
if attributes.key?(key)
attributes[value] = attributes.delete(key)
end
end
end
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end
end
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end