Contents

require 'noam_lemma'

# This is an example of a Ruby Lemma that publishes message and *also* uses the
# "Guest" model of connection. This Lemma will advertise that it's available on
# the local network, without a specified room, and will only begin subscribing
# to messages once a server requests a connection from the Lemma.

subscriber = Noam::Lemma.new('example-guest-subscriber', ["e3"], [])

# The `hear` method sets a a block of code to be called when an event is heard
# from a specific event.
subscriber.hear('e3') do |message|
  puts "Heard message"
  puts "Event: #{message.event}"
  puts "Value: #{message.value.inspect}"
end

# Using the `discover` method asks the Lemma to announce it's presence and
# wait for a message from a server that may want to connect to it.

subscriber.discover

loop do
  # The `listen` method will return an Message::Heard object once one is received by the
  # Lemma. Until an event is heard, the `listen` method blocks.
  begin
    m = subscriber.listen
    puts "Read: #{m.event} -> #{m.value.inspect}"
  rescue Noam::Disconnected
    puts "Disconnected"
    break
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
noam_lemma-0.2.1.3	examples/free_guest_subscriber.rb