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Contents
module MCollective
class Aggregate
class Base
attr_accessor :name, :result, :output_name, :action, :aggregate_format, :arguments
def initialize(output_name, arguments, aggregate_format, action)
@name = self.class.to_s
@output_name = output_name
# Any additional arguments passed in the ddl after the output field will
# be stored in the arguments array which can be used in the function
@arguments = arguments
@aggregate_format = aggregate_format
@action = action
@result = {:value => nil, :type => nil, :output => output_name}
startup_hook
end
['startup_hook', 'process_result'].each do |method|
define_method method do
raise RuntimeError, "'#{method}' method of function class #{@name} has not yet been implemented"
end
end
# Stops execution of the function and returns a specific ResultObject,
# aggregate functions will most likely override this but this is the simplest
# case so we might as well default to that
def summarize
raise "Result type is not set while trying to summarize aggregate function results" unless @result[:type]
result_class(@result[:type]).new(@result, @aggregate_format, @action)
end
def result_class(type)
Result.const_get("#{type.to_s.capitalize}Result")
end
end
end
end
Version data entries
56 entries across 56 versions & 2 rubygems