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Versions: 8
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Contents
module Dragonfly
class Analyser < FunctionManager
configurable_attr :enable_cache, true
configurable_attr :cache_size, 100
def initialize
super
analyser = self
@analysis_methods = Module.new do
define_method :analyser do
analyser
end
end
@analysis_method_names = []
end
attr_reader :analysis_methods, :analysis_method_names
def analyse(temp_object, method, *args)
if enable_cache
key = [temp_object.object_id, method, *args]
cache[key] ||= call_last(method, temp_object, *args)
else
call_last(method, temp_object, *args)
end
rescue NotDefined, UnableToHandle => e
log.warn(e.message)
nil
end
# Each time a function is registered with the analyser,
# add a method to the analysis_methods module.
# Expects the object that is extended to define 'analyse(method, *args)'
def add(name, *args, &block)
analysis_methods.module_eval %(
def #{name}(*args)
analyse(:#{name}, *args)
end
)
analysis_method_names << name.to_sym
super
end
def clear_cache!
@cache = nil
end
private
def cache
@cache ||= SimpleCache.new(cache_size)
end
end
end
Version data entries
8 entries across 8 versions & 2 rubygems