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fog--fog/lib/fog/core/attributes.rb
Juris Galang 827c029a99 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
2010-12-01 14:34:42 -08:00

178 lines
4.7 KiB
Ruby

module Fog
module Attributes
module ClassMethods
def _load(marshalled)
new(Marshal.load(marshalled))
end
def aliases
@aliases ||= {}
end
def attributes
@attributes ||= []
end
def attribute(name, options = {})
class_eval <<-EOS, __FILE__, __LINE__
def #{name}
attributes[:#{name}]
end
EOS
case options[:type]
when :boolean
class_eval <<-EOS, __FILE__, __LINE__
def #{name}=(new_#{name})
attributes[:#{name}] = case new_#{name}
when 'true'
true
when '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})
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[:#{squash}] || new_data["#{squash}"]
attributes[:#{name}] = new_data[:#{squash}] || 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
@attributes ||= []
@attributes |= [name]
for new_alias in [*options[:aliases]]
aliases[new_alias] = name
end
end
def identity(name, options = {})
@identity = name
self.attribute(name, options)
end
def ignore_attributes(*args)
@ignored_attributes = args
end
def ignored_attributes
@ignored_attributes ||= []
end
end
module InstanceMethods
def _dump
Marshal.dump(attributes)
end
def attributes
@attributes ||= {}
end
def identity
send(self.class.instance_variable_get('@identity'))
end
def identity=(new_identity)
send("#{self.class.instance_variable_get('@identity')}=", new_identity)
end
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 (public_methods | private_methods).detect {|method| ["#{key}=", :"#{key}="].include?(method)}
send("#{key}=", value)
else
attributes[key] = value
end
end
end
self
end
def new_record?
!identity
end
# check that the attributes specified in args exist and is not nil
def requires(*args)
missing = []
for arg in [:connection] | args
missing << arg unless send("#{arg}")
end
unless missing.empty?
if missing.length == 1
raise(ArgumentError, "#{missing.first} is required for this operation")
else
raise(ArgumentError, "#{missing[0...-1].join(", ")} and #{missing[-1]} are required for this operation")
end
end
end
private
def remap_attributes(attributes, mapping)
for key, value in mapping
if attributes.key?(key)
attributes[value] = attributes.delete(key)
end
end
end
end
end
end