Class: RSMP::Proxy

Inherits:
Object
  • Object
show all
Includes:
Inspect, Logging, Notifier, Task
Defined in:
lib/rsmp/proxy.rb

Direct Known Subclasses

SiteProxy, SupervisorProxy

Constant Summary collapse

WRAPPING_DELIMITER = 
"\f"

Instance Attribute Summary collapse

Attributes included from Task

#task

Attributes included from Notifier

#listeners

Attributes included from Logging

#logger

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Task

#initialize_task, #restart, #run, #start, #stop, #task_status, #wait, #wait_for_condition

Methods included from Inspect

#inspector

Methods included from Notifier

#add_listener, #clear_deferred_notify, #deferred_notify, #dequeue_notify, #distribute_error, #initialize_distributor, #notify, #notify_without_defer, #remove_listener

Methods included from Logging

#initialize_logging

Constructor Details

#initialize(options) ⇒ Proxy

Returns a new instance of Proxy.



17
18
19
20
21
22
23
24
25
 
# File 'lib/rsmp/proxy.rb', line 17

def initialize options
  @node = options[:node]
  initialize_logging options
  initialize_distributor
  initialize_task
  setup options
  clear
  @state = :disconnected
end

Instance Attribute Details

#archive ⇒ Object (readonly)

Returns the value of attribute archive.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def archive
  @archive
end

#collector ⇒ Object (readonly)

Returns the value of attribute collector.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def collector
  @collector
end

#connection_info ⇒ Object (readonly)

Returns the value of attribute connection_info.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def connection_info
  @connection_info
end

#core_version ⇒ Object (readonly)

Returns the value of attribute core_version.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def core_version
  @core_version
end

#ip ⇒ Object (readonly)

Returns the value of attribute ip.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def ip
  @ip
end

#node ⇒ Object (readonly)

Returns the value of attribute node.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def node
  @node
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def port
  @port
end

#state ⇒ Object (readonly)

Returns the value of attribute state.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def state
  @state
end

#sxl ⇒ Object (readonly)

Returns the value of attribute sxl.



16
17
18
 
# File 'lib/rsmp/proxy.rb', line 16

def sxl
  @sxl
end

Class Method Details

.version_meets_requirement?(version, requirement) ⇒ Boolean

Use Gem class to check version requirement Requirement must be a string like ‘1.1’, ‘>=1.0.3’ or ‘<2.1.4’, or list of strings, like [‘<=1.4’,‘<1.5’]

Returns:

  • (Boolean) 


650
651
652
 
# File 'lib/rsmp/proxy.rb', line 650

def self.version_meets_requirement? version, requirement
  Gem::Requirement.new(requirement).satisfied_by?(Gem::Version.new(version))
end

Instance Method Details

#acknowledge(original) ⇒ Object

Raises:

  • (InvalidArgument) 


473
474
475
476
477
478
479
 
# File 'lib/rsmp/proxy.rb', line 473

def acknowledge original
  raise InvalidArgument unless original
  ack = MessageAck.build_from(original)
  ack.original = original.clone
  send_message ack, "for #{ack.original.type} #{original.m_id_short}"
  check_ingoing_acknowledged original
end

#acknowledged_first_ingoing(message) ⇒ Object 



546
547
 
# File 'lib/rsmp/proxy.rb', line 546

def acknowledged_first_ingoing message
end

#acknowledged_first_outgoing(message) ⇒ Object 



543
544
 
# File 'lib/rsmp/proxy.rb', line 543

def acknowledged_first_outgoing message
end

#author ⇒ Object 



619
620
621
 
# File 'lib/rsmp/proxy.rb', line 619

def author
  @node.site_id
end

#buffer_message(message) ⇒ Object 



337
338
339
340
 
# File 'lib/rsmp/proxy.rb', line 337

def buffer_message message
  # TODO
  #log "Cannot send #{message.type} because the connection is closed.", message: message, level: :error
end

#check_ack_timeout(now) ⇒ Object 



280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
 
# File 'lib/rsmp/proxy.rb', line 280

def check_ack_timeout now
  timeout = @site_settings['timeouts']['acknowledgement']
  # hash cannot be modify during iteration, so clone it
  @awaiting_acknowledgement.clone.each_pair do |m_id, message|
    latest = message.timestamp + timeout
    if now > latest
      str = "No acknowledgements for #{message.type} #{message.m_id_short} within #{timeout} seconds"
      log str, level: :error
      begin
        close
      ensure
        notify_error MissingAcknowledgment.new(str)
      end
    end
  end
end

#check_core_version(message) ⇒ Object 



459
460
461
462
463
464
465
466
467
468
 
# File 'lib/rsmp/proxy.rb', line 459

def check_core_version message
  versions = core_versions
  # find versions that both we and the client support
  candidates = message.versions & versions
  if candidates.any?
    @core_version = candidates.sort_by { |v| Gem::Version.new(v) }.last  # pick latest version
  else
    raise HandshakeError.new "RSMP versions [#{message.versions.join(',')}] requested, but only [#{versions.join(',')}] supported."
  end
end

#check_ingoing_acknowledged(message) ⇒ Object 



536
537
538
539
540
541
 
# File 'lib/rsmp/proxy.rb', line 536

def check_ingoing_acknowledged message
  unless @ingoing_acknowledged[message.type]
    @ingoing_acknowledged[message.type] = true
    acknowledged_first_ingoing message
  end
end

#check_outgoing_acknowledged(message) ⇒ Object

TODO this might be better handled by a proper event machine using e.g. the EventMachine gem



529
530
531
532
533
534
 
# File 'lib/rsmp/proxy.rb', line 529

def check_outgoing_acknowledged message
  unless @outgoing_acknowledged[message.type]
    @outgoing_acknowledged[message.type] = true
    acknowledged_first_outgoing message
  end
end

#check_watchdog_timeout(now) ⇒ Object 



297
298
299
300
301
302
303
304
305
306
 
# File 'lib/rsmp/proxy.rb', line 297

def check_watchdog_timeout now
  timeout = @site_settings['timeouts']['watchdog']
  latest = @latest_watchdog_received + timeout
  left = latest - now
  if left < 0
    str = "No Watchdog received within #{timeout} seconds"
    log str, level: :warning
    notify MissingWatchdog.new(str)
  end
end

#clear ⇒ Object 



139
140
141
142
143
144
145
146
147
148
149
150
151
 
# File 'lib/rsmp/proxy.rb', line 139

def clear
  @awaiting_acknowledgement = {}
  @latest_watchdog_received = nil
  @watchdog_started = false
  @version_determined = false
  @ingoing_acknowledged = {}
  @outgoing_acknowledged = {}
  @latest_watchdog_send_at = nil

  @state_condition = Async::Notification.new
  @acknowledgements = {}
  @acknowledgement_condition = Async::Notification.new
end

#clock ⇒ Object 



123
124
125
 
# File 'lib/rsmp/proxy.rb', line 123

def clock
  @node.clock
end

#close ⇒ Object

close connection, but keep our main task running so we can reconnect



38
39
40
41
42
43
44
45
 
# File 'lib/rsmp/proxy.rb', line 38

def close
  log "Closing connection", level: :warning
  close_stream
  close_socket
  set_state :disconnected
  notify_error DisconnectError.new("Connection was closed")
  stop_timer
end

#close_socket ⇒ Object 



72
73
74
75
76
 
# File 'lib/rsmp/proxy.rb', line 72

def close_socket
  return unless @socket
  @socket.close
  @socket = nil
end

#close_stream ⇒ Object 



66
67
68
69
70
 
# File 'lib/rsmp/proxy.rb', line 66

def close_stream
  return unless @stream
  @stream.close
  @stream = nil
end

#connected? ⇒ Boolean

Returns:

  • (Boolean) 


131
132
133
 
# File 'lib/rsmp/proxy.rb', line 131

def connected?
  @state == :connected || @state == :ready
end

#core_versions ⇒ Object 



453
454
455
456
457
 
# File 'lib/rsmp/proxy.rb', line 453

def core_versions
  return [RSMP::Schema.latest_core_version] if @site_settings["core_versions"] == 'latest'
  return RSMP::Schema.core_versions if @site_settings["core_versions"] == 'all'
  [@site_settings["core_versions"]].flatten
end

#disconnect ⇒ Object 



27
28
 
# File 'lib/rsmp/proxy.rb', line 27

def disconnect
end

#disconnected? ⇒ Boolean

Returns:

  • (Boolean) 


135
136
137
 
# File 'lib/rsmp/proxy.rb', line 135

def disconnected?
  @state == :disconnected
end

#dont_acknowledge(original, prefix = nil, reason = nil) ⇒ Object

Raises:

  • (InvalidArgument) 


481
482
483
484
485
486
487
488
489
490
491
 
# File 'lib/rsmp/proxy.rb', line 481

def dont_acknowledge original, prefix=nil, reason=nil
  raise InvalidArgument unless original
  str = [prefix,reason].join(' ')
  log str, message: original, level: :warning if reason
  message = MessageNotAck.new({
    "oMId" => original.m_id,
    "rea" => reason || "Unknown reason"
  })
  message.original = original.clone
  send_message message, "for #{original.type} #{original.m_id_short}"
end

#dont_expect_acknowledgement(message) ⇒ Object 



445
446
447
 
# File 'lib/rsmp/proxy.rb', line 445

def dont_expect_acknowledgement message
  @awaiting_acknowledgement.delete message.attribute("oMId")
end

#expect_acknowledgement(message) ⇒ Object 



439
440
441
442
443
 
# File 'lib/rsmp/proxy.rb', line 439

def expect_acknowledgement message
  unless message.is_a?(MessageAck) || message.is_a?(MessageNotAck)
    @awaiting_acknowledgement[message.m_id] = message
  end
end

#expect_version_message(message) ⇒ Object 



606
607
608
609
610
 
# File 'lib/rsmp/proxy.rb', line 606

def expect_version_message message
  unless message.is_a?(Version) || message.is_a?(MessageAck) || message.is_a?(MessageNotAck)
    raise HandshakeError.new "Version must be received first"
  end
end

#extraneous_version(message) ⇒ Object 



449
450
451
 
# File 'lib/rsmp/proxy.rb', line 449

def extraneous_version message
  dont_acknowledge message, "Received", "extraneous Version message"
end

#find_original_for_message(message) ⇒ Object 



524
525
526
 
# File 'lib/rsmp/proxy.rb', line 524

def find_original_for_message message
   @awaiting_acknowledgement[ message.attribute("oMId") ]
end

#get_schemas ⇒ Object 



312
313
314
315
316
317
 
# File 'lib/rsmp/proxy.rb', line 312

def get_schemas
  schemas = { core: RSMP::Schema.latest_core_version } # use latest core
  schemas[:core] = core_version if core_version
  schemas[sxl] = RSMP::Schema.sanitize_version(sxl_version.to_s) if sxl && sxl_version
  schemas
end

#handshake_complete ⇒ Object 



612
613
614
 
# File 'lib/rsmp/proxy.rb', line 612

def handshake_complete
  set_state :ready
end

#inspect ⇒ Object 



117
118
119
120
121
 
# File 'lib/rsmp/proxy.rb', line 117

def inspect
  "#<#{self.class.name}:#{self.object_id}, #{inspector(
    :@acknowledgements,:@settings,:@site_settings
    )}>"
end

#log(str, options = {}) ⇒ Object 



308
309
310
 
# File 'lib/rsmp/proxy.rb', line 308

def log str, options={}
  super str, options.merge(ip: @ip, port: @port, site_id: @site_id)
end

#log_acknowledgement_for_original(message, original) ⇒ Object 



585
586
587
588
589
590
591
592
593
594
 
# File 'lib/rsmp/proxy.rb', line 585

def log_acknowledgement_for_original message, original
  str = "Received #{message.type} for #{original.type} #{message.attribute("oMId")[0..3]}"
  if message.type == 'MessageNotAck'
    reason = message.attributes["rea"]
    str = "#{str}: #{reason}" if reason
    log str, message: message, level: :warning
  else
    log str, message: message, level: :log
  end
end

#log_acknowledgement_for_unknown(message) ⇒ Object 



596
597
598
 
# File 'lib/rsmp/proxy.rb', line 596

def log_acknowledgement_for_unknown message
  log "Received #{message.type} for unknown message #{message.attribute("oMId")[0..3]}", message: message, level: :warning
end

#log_send(message, reason = nil) ⇒ Object 



342
343
344
345
346
347
348
349
350
351
352
353
354
 
# File 'lib/rsmp/proxy.rb', line 342

def log_send message, reason=nil
  if reason
    str = "Sent #{message.type} #{reason}"
  else
    str = "Sent #{message.type}"
  end

  if message.type == "MessageNotAck"
    log str, message: message, level: :warning
  else
    log str, message: message, level: :log
  end
end

#notify_error(e, options = {}) ⇒ Object 



206
207
208
 
# File 'lib/rsmp/proxy.rb', line 206

def notify_error e, options={}
  @node.notify_error e, options
end

#process_ack(message) ⇒ Object 



549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
 
# File 'lib/rsmp/proxy.rb', line 549

def process_ack message
  original = find_original_for_message message
  if original
    dont_expect_acknowledgement message
    message.original = original
    log_acknowledgement_for_original message, original

    case original.type
    when "Version"
      version_acknowledged
    when "StatusSubscribe"
      status_subscribe_acknowledged original
    end

    check_outgoing_acknowledged original

    @acknowledgements[ original.m_id ] = message
    @acknowledgement_condition.signal message
  else
    log_acknowledgement_for_unknown message
  end
end

#process_deferred ⇒ Object 



364
365
366
 
# File 'lib/rsmp/proxy.rb', line 364

def process_deferred
  @node.process_deferred
end

#process_message(message) ⇒ Object 



418
419
420
421
422
423
424
425
426
427
428
429
430
431
 
# File 'lib/rsmp/proxy.rb', line 418

def process_message message
  case message
    when MessageAck
      process_ack message
    when MessageNotAck
      process_not_ack message
    when Version
      process_version message
    when Watchdog
      process_watchdog message
    else
      dont_acknowledge message, "Received", "unknown message (#{message.type})"
  end
end

#process_not_ack(message) ⇒ Object 



572
573
574
575
576
577
578
579
580
581
582
583
 
# File 'lib/rsmp/proxy.rb', line 572

def process_not_ack message
  original = find_original_for_message message
  if original
    dont_expect_acknowledgement message
    message.original = original
    log_acknowledgement_for_original message, original
    @acknowledgements[ original.m_id ] = message
    @acknowledgement_condition.signal message
  else
    log_acknowledgement_for_unknown message
  end
end

#process_packet(json) ⇒ Object 



372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
 
# File 'lib/rsmp/proxy.rb', line 372

def process_packet json
  attributes = Message.parse_attributes json
  message = Message.build attributes, json
  message.validate(get_schemas) if should_validate_ingoing_message?(message)
  verify_sequence message
  deferred_notify do
    notify message
    process_message message
  end
  process_deferred
  message
rescue InvalidPacket => e
  str = "Received invalid package, must be valid JSON but got #{json.size} bytes: #{e.message}"
  notify_error e.exception(str)
  log str, level: :warning
  nil
rescue MalformedMessage => e
  str = "Received malformed message, #{e.message}"
  notify_error e.exception(str)
  log str, message: Malformed.new(attributes), level: :warning
  # cannot send NotAcknowledged for a malformed message since we can't read it, just ignore it
  nil
rescue SchemaError, RSMP::Schema::Error => e
  reason = "schema errors: #{e.message}"
  str = "Received invalid #{message.type}, #{reason}"
  log str, message: message, level: :warning
  notify_error e.exception(str), message: message
  dont_acknowledge message, str, reason
  message
rescue InvalidMessage => e
  reason = "#{e.message}"
  str = "Received invalid #{message.type},"
  notify_error e.exception("#{str} #{message.json}"), message: message
  dont_acknowledge message, str, reason
  message
rescue FatalError => e
  reason = e.message
  str = "Rejected #{message.type},"
  notify_error e.exception(str), message: message
  dont_acknowledge message, str, reason
  close
  message
ensure
  @node.clear_deferred
end

#process_version(message) ⇒ Object 



470
471
 
# File 'lib/rsmp/proxy.rb', line 470

def process_version message
end

#process_watchdog(message) ⇒ Object 



600
601
602
603
604
 
# File 'lib/rsmp/proxy.rb', line 600

def process_watchdog message
  log "Received #{message.type}", message: message, level: :log
  @latest_watchdog_received = Clock.now
  acknowledge message
end

#read_line ⇒ Object 



184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
 
# File 'lib/rsmp/proxy.rb', line 184

def read_line
  json = @protocol.read_line
  beginning = Time.now
  message = process_packet json
  duration = Time.now - beginning
  ms = (duration*1000).round(4)
  if duration > 0
    per_second = (1.0 / duration).round
  else
    per_second = Float::INFINITY
  end
  if message
    type = message.type
    m_id = Logger.shorten_message_id(message.m_id)
  else
    type = 'Unknown'
    m_id = nil
  end
  str = [type,m_id,"processed in #{ms}ms, #{per_second}req/s"].compact.join(' ')
  log str, level: :statistics
end

#ready? ⇒ Boolean

Returns:

  • (Boolean) 


127
128
129
 
# File 'lib/rsmp/proxy.rb', line 127

def ready?
  @state == :ready
end

#revive(options) ⇒ Object

revive after a reconnect



97
98
99
 
# File 'lib/rsmp/proxy.rb', line 97

def revive options
  setup options
end

#run_reader ⇒ Object 



161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
 
# File 'lib/rsmp/proxy.rb', line 161

def run_reader
  @stream ||= Async::IO::Stream.new(@socket)
  @protocol ||= Async::IO::Protocol::Line.new(@stream,WRAPPING_DELIMITER) # rsmp messages are json terminated with a form-feed
  loop do
    read_line
  end
rescue Restart
  log "Closing connection", level: :warning
  raise
rescue Async::Wrapper::Cancelled
  # ignore exceptions raised when a wait is aborted because a task is stopped
rescue EOFError, Async::Stop
  log "Connection closed", level: :warning
rescue IOError => e
  log "IOError: #{e}", level: :warning
rescue Errno::ECONNRESET
  log "Connection reset by peer", level: :warning
rescue Errno::EPIPE
  log "Broken pipe", level: :warning
rescue StandardError => e
  notify_error e, level: :internal
end

#run_timer(task, interval) ⇒ Object 



227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
 
# File 'lib/rsmp/proxy.rb', line 227

def run_timer task, interval
  next_time = Time.now.to_f
  loop do
    begin
      now = Clock.now
      timer(now)
    rescue RSMP::Schema::Error => e
      log "Timer: Schema error: #{e}", level: :warning
    rescue EOFError => e
      log "Timer: Connection closed: #{e}", level: :warning
    rescue IOError => e
      log "Timer: IOError", level: :warning
    rescue Errno::ECONNRESET
      log "Timer: Connection reset by peer", level: :warning
    rescue Errno::EPIPE => e
      log "Timer: Broken pipe", level: :warning
    rescue StandardError => e
      notify_error e, level: :internal
    end
  ensure
    next_time += interval
    duration = next_time - Time.now.to_f
    task.sleep duration
  end
end

#send_and_optionally_collect(message, options, &block) ⇒ Object 



623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
 
# File 'lib/rsmp/proxy.rb', line 623

def send_and_optionally_collect message, options, &block
  collect_options = options[:collect] || options[:collect!]
  if collect_options
    task = @task.async do |task|
      task.annotate 'send_and_optionally_collect'
      collector = yield collect_options     # call block to create collector
      collector.collect
      collector.ok! if options[:collect!]   # raise any errors if the bang version was specified
      collector
    end

    send_message message, validate: options[:validate]
    { sent: message, collector: task.wait }
  else
    send_message message, validate: options[:validate]
    return { sent: message }
  end
end

#send_message(message, reason = nil, validate: true) ⇒ Object 



319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
 
# File 'lib/rsmp/proxy.rb', line 319

def send_message message, reason=nil, validate: true
  raise NotReady unless connected?
  raise IOError unless @protocol
  message.direction = :out
  message.generate_json
  message.validate get_schemas unless validate==false
  @protocol.write_lines message.json
  expect_acknowledgement message
  notify message
  log_send message, reason
rescue EOFError, IOError
  buffer_message message
rescue SchemaError, RSMP::Schema::Error => e
  str = "Could not send #{message.type} because schema validation failed: #{e.message}"
  log str, message: message, level: :error
  notify_error e.exception("#{str} #{message.json}")
end

#send_version(site_id, core_versions) ⇒ Object 



504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
 
# File 'lib/rsmp/proxy.rb', line 504

def send_version site_id, core_versions
  if core_versions=='latest'
    versions = [RSMP::Schema.latest_core_version]
  elsif core_versions=='all'
    versions = RSMP::Schema.core_versions
  else
    versions = [core_versions].flatten
  end
  versions_array = versions.map {|v| {"vers" => v} }

  site_id_array = [site_id].flatten.map {|id| {"sId" => id} }

  version_response = Version.new({
    "RSMP"=>versions_array,
    "siteId"=>site_id_array,
    "SXL"=>sxl_version.to_s
  })
  send_message version_response
end

#send_watchdog(now = Clock.now) ⇒ Object 



274
275
276
277
278
 
# File 'lib/rsmp/proxy.rb', line 274

def send_watchdog now=Clock.now
  message = Watchdog.new( {"wTs" => clock.to_s})
  send_message message
  @latest_watchdog_send_at = now
end

#set_nts_message_attributes(message) ⇒ Object 



642
643
644
645
 
# File 'lib/rsmp/proxy.rb', line 642

def set_nts_message_attributes message
  message.attributes['ntsOId'] = (main && main.ntsOId) ? main.ntsOId : ''
  message.attributes['xNId'] = (main && main.xNId) ? main.xNId : ''
end

#set_state(state) ⇒ Object

change our state



84
85
86
87
88
 
# File 'lib/rsmp/proxy.rb', line 84

def set_state state
  return if state == @state
  @state = state
  state_changed
end

#setup(options) ⇒ Object 



101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
 
# File 'lib/rsmp/proxy.rb', line 101

def setup options
  @settings = options[:settings]
  @socket = options[:socket]
  @stream = options[:stream]
  @protocol = options[:protocol]
  @ip = options[:ip]
  @port = options[:port]
  @connection_info = options[:info]
  @sxl = nil
  @site_settings = nil  # can't pick until we know the site id
  if options[:collect]
    @collector = RSMP::Collector.new self, options[:collect]
    @collector.start
  end
end

#should_validate_ingoing_message?(message) ⇒ Boolean

Returns:

  • (Boolean) 


356
357
358
359
360
361
362
 
# File 'lib/rsmp/proxy.rb', line 356

def should_validate_ingoing_message? message
  return true unless @site_settings
  skip = @site_settings.dig('skip_validation')
  return true unless skip
  klass = message.class.name.split('::').last
  !skip.include?(klass)
end

#start_reader ⇒ Object

run an async task that reads from @socket



154
155
156
157
158
159
 
# File 'lib/rsmp/proxy.rb', line 154

def start_reader
  @reader = @task.async do |task|
    task.annotate "reader"
    run_reader
  end
end

#start_timer ⇒ Object 



215
216
217
218
219
220
221
222
223
224
225
 
# File 'lib/rsmp/proxy.rb', line 215

def start_timer
  return if @timer
  name = "timer"
  interval = @site_settings['intervals']['timer'] || 1
  log "Starting #{name} with interval #{interval} seconds", level: :debug
  @latest_watchdog_received = Clock.now
  @timer = @task.async do |task|
    task.annotate "timer"
    run_timer task, interval
  end
end

#start_watchdog ⇒ Object 



210
211
212
213
 
# File 'lib/rsmp/proxy.rb', line 210

def start_watchdog
  log "Starting watchdog with interval #{@site_settings['intervals']['watchdog']} seconds", level: :debug
  @watchdog_started = true
end

#state_changed ⇒ Object

the state changed override to to things like notifications



92
93
94
 
# File 'lib/rsmp/proxy.rb', line 92

def state_changed
  @state_condition.signal @state
end

#status_subscribe_acknowledged(original) ⇒ Object 



654
655
656
657
658
659
660
661
 
# File 'lib/rsmp/proxy.rb', line 654

def status_subscribe_acknowledged original
  component = find_component original.attribute('cId')
  return unless component
  short = Message.shorten_m_id original.m_id
  subscribe_list = original.attributes['sS']
  log "StatusSubscribe #{short} acknowledged, allowing repeated status values for #{subscribe_list}", level: :info
  component.allow_repeat_updates subscribe_list
end

#stop_reader ⇒ Object 



60
61
62
63
64
 
# File 'lib/rsmp/proxy.rb', line 60

def stop_reader
  return unless @reader
  @reader.stop
  @reader = nil
end

#stop_subtasks ⇒ Object 



47
48
49
50
51
52
 
# File 'lib/rsmp/proxy.rb', line 47

def stop_subtasks
  stop_timer
  stop_reader
  clear
  super
end

#stop_task ⇒ Object 



78
79
80
81
 
# File 'lib/rsmp/proxy.rb', line 78

def stop_task
  close
  super
end

#stop_timer ⇒ Object 



54
55
56
57
58
 
# File 'lib/rsmp/proxy.rb', line 54

def stop_timer
  return unless @timer
  @timer.stop
  @timer = nil
end

#timer(now) ⇒ Object 



253
254
255
256
257
 
# File 'lib/rsmp/proxy.rb', line 253

def timer now
  watchdog_send_timer now
  check_ack_timeout now
  check_watchdog_timeout now
end

#verify_sequence(message) ⇒ Object 



368
369
370
 
# File 'lib/rsmp/proxy.rb', line 368

def verify_sequence message
  expect_version_message(message) unless @version_determined
end

#version_acknowledged ⇒ Object 



616
617
 
# File 'lib/rsmp/proxy.rb', line 616

def version_acknowledged
end

#wait_for_reader ⇒ Object

wait for the reader task to complete, which is not expected to happen before the connection is closed



33
34
35
 
# File 'lib/rsmp/proxy.rb', line 33

def wait_for_reader
  @reader.wait if @reader
end

#wait_for_state(state, timeout:) ⇒ Object 



493
494
495
496
497
498
499
500
501
502
 
# File 'lib/rsmp/proxy.rb', line 493

def wait_for_state state, timeout:
  states = [state].flatten
  return if states.include?(@state)
  wait_for_condition(@state_condition,timeout: timeout) do
    states.include?(@state)
  end
  @state
rescue RSMP::TimeoutError
  raise RSMP::TimeoutError.new "Did not reach state #{state} within #{timeout}s"
end

#watchdog_send_timer(now) ⇒ Object 



259
260
261
262
263
264
265
266
267
268
269
270
271
272
 
# File 'lib/rsmp/proxy.rb', line 259

def watchdog_send_timer now
  return unless @watchdog_started
  return if @site_settings['intervals']['watchdog'] == :never
  if @latest_watchdog_send_at == nil
    send_watchdog now
  else
    # we add half the timer interval to pick the timer
    # event closes to the wanted wathcdog interval
    diff = now - @latest_watchdog_send_at
    if (diff + 0.5*@site_settings['intervals']['timer']) >= (@site_settings['intervals']['watchdog'])
      send_watchdog now
    end
  end
end

#will_not_handle(message) ⇒ Object 



433
434
435
436
437
 
# File 'lib/rsmp/proxy.rb', line 433

def will_not_handle message
  reason = "since we're a #{self.class.name.downcase}" unless reason
  log "Ignoring #{message.type}, #{reason}", message: message, level: :warning
  dont_acknowledge message, nil, reason
end