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# frozen_string_literal: true
module Karafka
module Routing
# Proxy is used as a translation layer in between the DSL and raw topic and consumer group
# objects.
class Proxy
attr_reader :target
# @param target [Object] target object to which we proxy any DSL call
# @param defaults [Proc] defaults for target that should be applicable after the proper
# proxy context (if needed)
# @param block [Proc, nil] block that we want to evaluate in the proxy context or nil if no
# proxy block context for example because whole context is taken from defaults
def initialize(target, defaults = ->(_) {}, &block)
@target = target
instance_eval(&block) if block
instance_eval(&defaults) if defaults
end
# Translates the no "=" DSL of routing into elements assignments on target
# @param method_name [Symbol] name of the missing method
def method_missing(method_name, ...)
return super unless respond_to_missing?(method_name)
if @target.respond_to?(:"#{method_name}=")
@target.public_send(:"#{method_name}=", ...)
else
@target.public_send(method_name, ...)
end
end
# Tells whether or not a given element exists on the target
# @param method_name [Symbol] name of the missing method
# @param include_private [Boolean] should we include private in the check as well
def respond_to_missing?(method_name, include_private = false)
@target.respond_to?(:"#{method_name}=", include_private) ||
@target.respond_to?(method_name, include_private) ||
super
end
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems