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Contents
require 'dry-equalizer'
module Messaging
module Routing
# Internal: Used by subscribers to match messages.
class MessageMatcher
include Dry::Equalizer(:pattern)
attr_accessor :pattern
def initialize(pattern:)
self.pattern = pattern
end
# Internal: See routing.rb for examples on how it is used.
def matches?(message)
matches_pattern?(message)
end
def matches_pattern?(message)
case pattern
when Regexp
pattern =~ message.message_type
when Class, Module
/^#{pattern}/ =~ message.message_type
when Proc
pattern.call(message)
else
false
end
end
def call(message)
matches?(message)
end
def all_matching_messages
Messaging.defined_messages.select(&method(:matches?))
end
# Internal: Get all topics that the matcher would need to match a message.
#
# Used by the Kafka adapter to setup consumers.
def topics
all_matching_messages.map(&:topic).uniq
end
def categories
all_matching_messages.map { |m| m.new.stream_category }.uniq
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems