Class: LaunchDarkly::PollingProcessor

Inherits:
Object
  • Object
show all
Defined in:
lib/ldclient-rb/polling.rb

Instance Method Summary collapse

Constructor Details

#initialize(config, requestor) ⇒ PollingProcessor

Returns a new instance of PollingProcessor.



10
11
12
13
14
15
16
17
 
# File 'lib/ldclient-rb/polling.rb', line 10

def initialize(config, requestor)
  @config = config
  @requestor = requestor
  @initialized = Concurrent::AtomicBoolean.new(false)
  @started = Concurrent::AtomicBoolean.new(false)
  @ready = Concurrent::Event.new
  @task = Impl::RepeatingTask.new(@config.poll_interval, 0, -> { self.poll }, @config.logger)
end

Instance Method Details

#initialized? ⇒ Boolean

Returns:

  • (Boolean) 


19
20
21
 
# File 'lib/ldclient-rb/polling.rb', line 19

def initialized?
  @initialized.value
end

#poll ⇒ Object 



34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/ldclient-rb/polling.rb', line 34

def poll
  begin
    all_data = @requestor.request_all_data
    if all_data
      update_sink_or_data_store.init(all_data)
      if @initialized.make_true
        @config.logger.info { "[LDClient] Polling connection initialized" }
        @ready.set
      end
    end
    @config.data_source_update_sink&.update_status(LaunchDarkly::Interfaces::DataSource::Status::VALID, nil)
  rescue JSON::ParserError => e
    @config.logger.error { "[LDClient] JSON parsing failed for polling response." }
    error_info = LaunchDarkly::Interfaces::DataSource::ErrorInfo.new(
      LaunchDarkly::Interfaces::DataSource::ErrorInfo::INVALID_DATA,
      0,
      e.to_s,
      Time.now
    )
    @config.data_source_update_sink&.update_status(LaunchDarkly::Interfaces::DataSource::Status::INTERRUPTED, error_info)
  rescue UnexpectedResponseError => e
    error_info = LaunchDarkly::Interfaces::DataSource::ErrorInfo.new(
      LaunchDarkly::Interfaces::DataSource::ErrorInfo::ERROR_RESPONSE, e.status, nil, Time.now)
    message = Util.http_error_message(e.status, "polling request", "will retry")
    @config.logger.error { "[LDClient] #{message}" }

    if Util.http_error_recoverable?(e.status)
      @config.data_source_update_sink&.update_status(
        LaunchDarkly::Interfaces::DataSource::Status::INTERRUPTED,
        error_info
      )
    else
      @ready.set  # if client was waiting on us, make it stop waiting - has no effect if already set
      stop_with_error_info error_info
    end
  rescue StandardError => e
    Util.log_exception(@config.logger, "Exception while polling", e)
    @config.data_source_update_sink&.update_status(
      LaunchDarkly::Interfaces::DataSource::Status::INTERRUPTED,
      LaunchDarkly::Interfaces::DataSource::ErrorInfo.new(LaunchDarkly::Interfaces::DataSource::ErrorInfo::UNKNOWN, 0, e.to_s, Time.now)
    )
  end
end

#start ⇒ Object 



23
24
25
26
27
28
 
# File 'lib/ldclient-rb/polling.rb', line 23

def start
  return @ready unless @started.make_true
  @config.logger.info { "[LDClient] Initializing polling connection" }
  @task.start
  @ready
end

#stop ⇒ Object 



30
31
32
 
# File 'lib/ldclient-rb/polling.rb', line 30

def stop
  stop_with_error_info
end