Archiving a bunch of old stuff

oldstuff/sylvilagus/jruby/lib/sylvilagus/ch02/hello_world.rb

@@ -0,0 +1,23 @@
+require 'sylvilagus/init'
+require 'sylvilagus/ch02'
+
+require 'rabbitmq-client.jar'
+import com.rabbitmq.client.ConnectionFactory
+
+module Sylvilagus::Ch02::HelloWorld
+  module ClassMethods
+    def with_hello_world_channel(&block)
+      factory = ConnectionFactory.new
+      factory.uri = ENV.fetch('SYLVILAGUS_AMQP_URI')
+      conn = factory.new_connection
+
+      channel = conn.create_channel
+      channel.exchange_declare('hello-exchange', 'direct', true)
+      channel.queue_declare('hello-queue', false, false, false, nil)
+
+      block.call(channel)
+    ensure
+      conn.close
+    end
+  end
+end

oldstuff/sylvilagus/jruby/lib/sylvilagus/ch02/hello_world_consumer.rb

@@ -0,0 +1,41 @@
+require 'sylvilagus/ch02/hello_world'
+
+class Sylvilagus::Ch02::HelloWorldConsumer < Java::ComRabbitmqClient::DefaultConsumer
+  class << self
+    include Sylvilagus::Ch02::HelloWorld::ClassMethods
+
+    def main
+      with_hello_world_channel do |channel|
+        consumer = new(channel)
+
+        STDERR.puts 'Starting consume loop...'
+        channel.basic_consume('hello-queue', false, consumer)
+
+        loop do
+          sleep 1
+          break if consumer.done?
+        end
+      end
+    end
+  end
+
+  def done?
+    @done ||= false
+  end
+
+  def handleDelivery(consumer_tag, envelope, properties, body)
+    body_string = Java::OrgJruby::RubyString.bytes_to_string(body)
+
+    puts "Consumed #{body_string.inspect}"
+    channel.basic_ack(envelope.delivery_tag, false)
+
+    if body_string == 'quit'
+      STDERR.puts 'Quitting...'
+      @done = true
+    end
+  end
+end
+
+if $0 == __FILE__
+  Sylvilagus::Ch02::HelloWorldConsumer.main
+end

oldstuff/sylvilagus/jruby/lib/sylvilagus/ch02/hello_world_producer.rb

@@ -0,0 +1,20 @@
+require 'sylvilagus/ch02/hello_world'
+
+class Sylvilagus::Ch02::HelloWorldProducer
+  class << self
+    include Sylvilagus::Ch02::HelloWorld::ClassMethods
+
+    def main(args = ARGV.clone)
+      raise 'Missing message arg!' if args.empty?
+      message = args.fetch(0)
+      with_hello_world_channel do |channel|
+        channel.basic_publish('hello-exchange', 'hola', nil, message.to_java_bytes)
+        puts "Published #{message.inspect}"
+      end
+    end
+  end
+end
+
+if $0 == __FILE__
+  Sylvilagus::Ch02::HelloWorldProducer.main(ARGV)
+end