Class: LogStash::TestPipeline

Inherits:
JavaPipeline
  • Object
show all
Defined in:
lib/logstash/test_pipeline.rb

Defined Under Namespace

Classes: EventTrackingQueueReadClientDelegator, QueueBatchDelegator

Instance Method Summary collapse

Instance Method Details

#filter_queue_client ⇒ Object

Note:

only works since LS 6.4 (need to use tha actual ivar for 6.3)



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# File 'lib/logstash/test_pipeline.rb', line 29

def filter_queue_client
  @filter_queue_client || super
end

#run_with(events) ⇒ Object 



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# File 'lib/logstash/test_pipeline.rb', line 8

def run_with(events)
  if inputs&.any? # will work but might be unintended
    config = "\n #{config_str}" if $VERBOSE
    warn "#{self} pipeline is getting events pushed manually while having inputs: #{inputs.inspect}  #{config}"
  end
  # TODO could we handle a generator (Enumerator) ?
  queue.write_client.push_batch events.to_a
  queue_read_client = filter_queue_client
  # potentially handle run_with called multiple times (re-use the same instance) :
  if queue_read_client.is_a?(EventTrackingQueueReadClientDelegator)
    queue_read_client.reset_events!
  else
    # start_worker using @filter_queue_client on 6.3, since 6.4 a reader method is used
    # to make things compatible with 6.3 we're assigning the @filter_queue_client ivar
    @filter_queue_client = EventTrackingQueueReadClientDelegator.new queue_read_client
  end
  run
end

#start_and_wait ⇒ Object 



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# File 'lib/logstash/test_pipeline.rb', line 35

def start_and_wait
  parent_thread = Thread.current
  @finished_execution.make_false
  @finished_run&.make_false # only since 6.5

  @thread = Thread.new do
    begin
      LogStash::Util.set_thread_name("pipeline.#{pipeline_id}")
      ThreadContext.put("pipeline.id", pipeline_id)
      run
      @finished_run&.make_true
    rescue => e
      close
      parent_thread.raise(e)
    ensure
      @finished_execution.make_true
    end
  end

  unless wait_until_started
    raise "failed to start pipeline: #{self}\n with config: #{config_str.inspect}"
  end

  @thread
end