Class: Originator

Inherits:
Object
  • Object
show all
Includes:
Configuration
Defined in:
lib/gorgon/originator.rb

Instance Method Summary collapse

Methods included from Configuration

#load_configuration_from_file

Constructor Details

#initialize ⇒ Originator

Returns a new instance of Originator.



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# File 'lib/gorgon/originator.rb', line 17

def initialize
  @configuration = nil
  @rsync_daemon = RsyncDaemon.new
end

Instance Method Details

#cancel_job ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 40

def cancel_job
  ShutdownManager.new(protocol: @protocol,
                      job_state: @job_state,
                      rsync_daemon: @rsync_daemon).cancel_job
end

#cleanup_if_job_complete ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 84

def cleanup_if_job_complete
  if @job_state.is_job_complete?
    @logger.log "Job is done"
    @protocol.disconnect
    @rsync_daemon.stop
  end
end

#connection_information ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 127

def connection_information
  configuration[:connection]
end

#create_job_state_and_observers ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 116

def create_job_state_and_observers
  @job_state = JobState.new files.count
  @progress_bar_view = ProgressBarView.new @job_state
  @progress_bar_view.show
  failures_printer = FailuresPrinter.new @job_state
end

#ctrl_c ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 46

def ctrl_c
  puts "\nCtrl-C received! Just wait a moment while I clean up..."
  cancel_job
end

#files ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 131

def files
  @files ||= configuration[:files].reduce([]) do |memo, obj|
    memo.concat(Dir[obj])
  end.uniq
end

#handle_reply(payload) ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 92

def handle_reply(payload)
  payload = Yajl::Parser.new(:symbolize_keys => true).parse(payload)

  # at some point this will probably need to be fancy polymorphic type based responses, or at least a nice switch statement
  if payload[:action] == "finish"
    @job_state.file_finished payload
  elsif payload[:action] == "start"
    @job_state.file_started payload
  elsif payload[:type] == "crash"
    @job_state.gorgon_crash_message payload
  elsif payload[:type] == "exception"
    # TODO
    ap payload
  else
    ap payload
  end

  @logger.log_message payload
  # Uncomment this to see each message received by originator
  # ap payload

  cleanup_if_job_complete
end

#job_definition ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 137

def job_definition
  job_config = configuration[:job]
  if !job_config.has_key?(:source_tree_path)
    job_config[:source_tree_path] = "rsync://#{local_ip_addr}:43434/src"
  end
  JobDefinition.new(configuration[:job])
end

#on_disconnect ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 123

def on_disconnect
  EventMachine.stop
end

#originate ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 22

def originate
  begin
    Signal.trap("INT") { ctrl_c }
    Signal.trap("TERM") { ctrl_c }

    publish
    @logger.log "Originator finished successfully"
  rescue StandardError
    puts "Unhandled exception in originator:"
    puts $!.message
    puts $!.backtrace.join("\n")
    puts "----------------------------------"
    puts "Now attempting to cancel the job."
    @logger.log_error "Unhandled Exception!" if @logger
    cancel_job
  end
end

#publish ⇒ Object 



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# File 'lib/gorgon/originator.rb', line 51

def publish
  @logger = OriginatorLogger.new configuration[:originator_log_file]

  if files.empty?
    $stderr.puts "There are no files to test! Quitting."
    exit 2
  end

  if !@rsync_daemon.start
    @logger.log_error "rsync daemon didn't start!"
    exit 1
  end

  @protocol = OriginatorProtocol.new @logger

  EventMachine.run do
    @logger.log "Connecting..."
    @protocol.connect connection_information, :on_closed => method(:on_disconnect)

    @logger.log "Publishing files..."
    @protocol.publish_files files
    create_job_state_and_observers

    @logger.log "Publishing Job..."
    @protocol.publish_job job_definition
    @logger.log "Job Published"

    @protocol.receive_payloads do |payload|
      handle_reply(payload)
    end
  end
end