Class: LogStash::Outputs::Application_insights::Shutdown

Inherits:
Object
  • Object
show all
Defined in:
lib/logstash/outputs/application_insights/shutdown.rb

Constant Summary collapse

@@instance = 
Shutdown.new

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Shutdown

Returns a new instance of Shutdown.



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# File 'lib/logstash/outputs/application_insights/shutdown.rb', line 27

def initialize
  configuration = Config.current

  @logger_progname = configuration[:logger_progname]
  @logger = configuration[:logger]

end

Class Method Details

.instance ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/shutdown.rb', line 94

def self.instance
  @@instance
end

Instance Method Details

#display_msg(msg) ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/shutdown.rb', line 85

def display_msg ( msg )
    puts "+++ #{@logger_progname} #{msg}"
    # @logger.info { "#{msg}" }
end

#start ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/shutdown.rb', line 35

def start
  @state = State.instance
  @channels = Channels.instance
end

#submit ⇒ Object 



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# File 'lib/logstash/outputs/application_insights/shutdown.rb', line 40

def submit
  display_msg( "start graceful shutdown, flush all events" )

  # wait for all uploads to finish
  start_bytes_in_memory = @state.bytes_in_memory
  bytes_in_memory = start_bytes_in_memory
  while bytes_in_memory > 0 do 
    sleep( 1 )
    bytes_in_memory = @state.bytes_in_memory
    percent = 100 * (1 - ( bytes_in_memory.to_f / start_bytes_in_memory ) )
    display_msg( "#{percent.to_i}% events were uploaded to Azure storage" ) if percent < 100.0
  end
  display_msg( "all events were uploaded to Azure storage" )

  # close all blobs activity
  Blob.close

  # close all channels activity
  @channels.close

  # wait for all uploads to commit
  start_pending_commits = @state.pending_commits
  pending_commits = start_pending_commits
  while pending_commits > 0 do 
    sleep( 1 )
    pending_commits = @state.pending_commits
    percent = 100 * (1 - ( pending_commits.to_f / start_pending_commits ) )
    display_msg( "#{percent.to_i}% events were commited to Azure storage" ) if percent < 100.0
  end
  display_msg( "all events were commited to Azure storage" )

  # wait for all blobs to be notified
  start_pending_notifications = @state.pending_notifications
  pending_notifications = start_pending_notifications
  while pending_notifications > 0 do 
    sleep( 1 ) 
    pending_notifications = @state.pending_notifications
    percent = 100 * (1 - ( pending_notifications.to_f / start_pending_notifications ) )
    display_msg( "#{percent.to_i}% events were notified to Application Insights Analytics" ) if percent < 100.0
  end

  # done
  display_msg( "all events were notified to Application Insights Analytics" )
end