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require "amqp/openable"
require "amqp/callbacks"
module AMQP
module RegisterEntityMixin
# @example Registering Channel implementation
# Adapter.register_entity(:channel, Channel)
# # ... so then I can do:
# channel = client.channel(1)
# # instead of:
# channel = Channel.new(client, 1)
def register_entity(name, klass)
define_method(name) do |*args, &block|
klass.new(self, *args, &block)
end # define_method
end # register_entity
end # RegisterEntityMixin
module ProtocolMethodHandlers
def handle(klass, &block)
HandlersRegistry.register(klass, &block)
end
def handlers
HandlersRegistry.handlers
end
end # ProtocolMethodHandlers
# AMQ entities, as implemented by AMQP, have callbacks and can run them
# when necessary.
#
# @note Exchanges and queues implementation is based on this class.
#
# @abstract
module Entity
#
# Behaviors
#
include Openable
include Callbacks
#
# API
#
# @return [Array<#call>]
attr_reader :callbacks
def initialize(connection)
@connection = connection
# Be careful with default values for #ruby hashes: h = Hash.new(Array.new); h[:key] ||= 1
# won't assign anything to :key. MK.
@callbacks = Hash.new
end # initialize
end # Entity
# Common behavior of AMQ entities that can be either client or server-named, for example, exchanges and queues.
module ServerNamedEntity
# @return [Boolean] true if this entity is anonymous (server-named)
def server_named?
@server_named || @name.nil? || @name.empty?
end
# backwards compabitility. MK.
alias anonymous? server_named?
end # ServerNamedEntity
end
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