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# An actual indirection.
class Puppet::Indirector::Indirection
@@indirections = []
# Clear all cached termini from all indirections.
def self.clear_cache
@@indirections.each { |ind| ind.clear_cache }
end
# Find an indirection by name. This is provided so that Terminus classes
# can specifically hook up with the indirections they are associated with.
def self.instance(name)
@@indirections.find { |i| i.name == name }
end
attr_accessor :name, :model
# Clear our cached list of termini.
# This is only used for testing.
def clear_cache
@termini.clear
end
# This is only used for testing.
def delete
@@indirections.delete(self) if @@indirections.include?(self)
end
def initialize(model, name, options = {})
@model = model
@name = name
options.each do |name, value|
begin
send(name.to_s + "=", value)
rescue NoMethodError
raise ArgumentError, "%s is not a valid Indirection parameter" % name
end
end
@termini = {}
@terminus_types = {}
raise(ArgumentError, "Indirection %s is already defined" % @name) if @@indirections.find { |i| i.name == @name }
@@indirections << self
end
# Return the singleton terminus for this indirection.
def terminus(terminus_name = nil)
# Get the name of the terminus.
unless terminus_name
param_name = "%s_terminus" % self.name
if Puppet.settings.valid?(param_name)
terminus_name = Puppet.settings[param_name]
else
terminus_name = Puppet[:default_terminus]
end
unless terminus_name and terminus_name.to_s != ""
raise ArgumentError, "Invalid terminus name %s" % terminus_name.inspect
end
terminus_name = terminus_name.intern if terminus_name.is_a?(String)
end
return @termini[terminus_name] ||= make_terminus(terminus_name)
end
def find(*args)
terminus.find(*args)
end
def destroy(*args)
terminus.destroy(*args)
end
def search(*args)
terminus.search(*args)
end
# these become instance methods
def save(*args)
terminus.save(*args)
end
private
# Create a new terminus instance.
def make_terminus(name)
# Load our terminus class.
unless klass = Puppet::Indirector::Terminus.terminus_class(name, self.name)
raise ArgumentError, "Could not find terminus %s for indirection %s" % [name, self.name]
end
return klass.new
end
end
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