Contents

#!/usr/bin/env ruby
# encoding: utf-8

require "bundler"
Bundler.setup

$:.unshift(File.expand_path("../../../lib", __FILE__))

require 'amqp'


puts "=> Queue redeclaration with different attributes results in a channel exception that is handled"
puts
AMQP.start("amqp://guest:[e-mail]:5672") do |connection, open_ok|
  AMQP::Channel.new do |channel, open_ok|
    puts "Channel ##{channel.id} is now open!"

    channel.on_error do |ch, channel_close|
      puts <<-ERR
      Handling a channel-level exception.

      AMQP class id : #{channel_close.class_id},
      AMQP method id: #{channel_close.method_id},
      Status code   : #{channel_close.reply_code}
      Error message : #{channel_close.reply_text}
      ERR
    end

    EventMachine.add_timer(0.4) do
      # these two definitions result in a race condition. For sake of this example,
      # however, it does not matter. Whatever definition succeeds first, 2nd one will
      # cause a channel-level exception (because attributes are not identical)
      AMQP::Queue.new(channel, "amqpgem.examples.channel_exception", :auto_delete => true, :durable => false) do |queue|
        puts "#{queue.name} is ready to go"
      end

      AMQP::Queue.new(channel, "amqpgem.examples.channel_exception", :auto_delete => true, :durable => true) do |queue|
        puts "#{queue.name} is ready to go"
      end
    end
  end


  show_stopper = Proc.new do
    $stdout.puts "Stopping..."

    connection.close {
      EM.stop { exit }
    }
  end

  Signal.trap "INT", show_stopper
  EM.add_timer(2, show_stopper)
end

Version data entries

53 entries across 53 versions & 1 rubygems

Version	Path
amqp-0.9.2	examples/error_handling/channel_level_exception.rb
amqp-0.9.1	examples/error_handling/channel_level_exception.rb
amqp-0.9.0	examples/error_handling/channel_level_exception.rb
amqp-0.9.0.pre3	examples/error_handling/channel_level_exception.rb
amqp-0.9.0.pre2	examples/error_handling/channel_level_exception.rb
amqp-0.9.0.pre1	examples/error_handling/channel_level_exception.rb
amqp-0.8.4	examples/error_handling/channel_level_exception.rb
amqp-0.8.3	examples/error_handling/channel_level_exception.rb
amqp-0.8.2	examples/error_handling/channel_level_exception.rb
amqp-0.8.1	examples/error_handling/channel_level_exception.rb
amqp-0.8.0	examples/error_handling/channel_level_exception.rb
amqp-0.8.0.rc15	examples/error_handling/channel_level_exception.rb
amqp-0.8.0.rc14	examples/error_handling/channel_level_exception.rb