Class: Bumbleworks::Worker::Info

Inherits:
Ruote::Worker::Info
  • Object
show all
Extended by:
Enumerable, Forwardable
Defined in:
lib/bumbleworks/worker/info.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(worker) ⇒ Info

Returns a new instance of Info.



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# File 'lib/bumbleworks/worker/info.rb', line 73

def initialize(worker)
  @worker = worker
  @last_save = Time.now - 2 * 60

  @msgs = [] unless worker.is_a?(Bumbleworks::Worker::Proxy)
end

Instance Attribute Details

#worker ⇒ Object (readonly)

Returns the value of attribute worker.



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# File 'lib/bumbleworks/worker/info.rb', line 5

def worker
  @worker
end

Class Method Details

.[](worker_id) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 41

def [](worker_id)
  from_hash(raw_hash[worker_id])
end

.all ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 23

def all
  to_a
end

.each ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 17

def each
  raw_hash.each { |k, v|
    yield from_hash(v)
  }
end

.filter ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 36

def filter
  return [] unless block_given?
  select { |info| yield info.worker }
end

.forget_worker(id_to_delete) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 49

def forget_worker(id_to_delete)
  purge_worker_info do |id, info|
    id == id_to_delete
  end
end

.from_hash(hash) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 45

def from_hash(hash)
  new(Bumbleworks::Worker::Proxy.new(hash))
end

.purge_stale_worker_info ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 55

def purge_stale_worker_info
  purge_worker_info do |id, info|
    info['state'].nil? || info['state'] == 'stopped'
  end
end

.purge_worker_info(&block) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 61

def purge_worker_info(&block)
  doc = Bumbleworks.dashboard.storage.get('variables', 'workers')
  return unless doc
  doc['workers'] = doc['workers'].reject { |id, info|
    block.call(id, info)
  }
  result = Bumbleworks.dashboard.storage.put(doc)
  purge_stale_worker_info if result
  all
end

.raw_hash ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 13

def raw_hash
  Bumbleworks.dashboard.worker_info || {}
end

.where(options) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 27

def where(options)
  filter_proc = proc { |worker|
    options.all? { |k, v|
      worker.send(k.to_sym) == v
    }
  }
  filter(&filter_proc)
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 80

def ==(other)
  other.is_a?(Bumbleworks::Worker::Info) &&
    other.worker == worker
end

#constant_worker_info_hash ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 195

def constant_worker_info_hash
  {
    "id" => @worker.id,
    "class" => @worker.class_name,
    "name" => @worker.name,
    "ip" => @worker.ip,
    "hostname" => @worker.hostname,
    "pid" => @worker.pid,
    "system" => @worker.system,
    "launched_at" => @worker.launched_at,
    "state" => @worker.state
  }
end

#in_stopped_state? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bumbleworks/worker/info.rb', line 110

def in_stopped_state?
  worker.state.nil? || ["stopped", "stalled"].include?(worker.state)
end

#pause(options = {}) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 152

def pause(options = {})
  send_command("paused", options)
end

#processed_last_hour ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 187

def processed_last_hour
  raw_hash["processed_last_hour"]
end

#processed_last_minute ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 179

def processed_last_minute
  raw_hash["processed_last_minute"]
end

#raw_hash ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 85

def raw_hash
  self.class.raw_hash[worker.id]
end

#record_new_state(state) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 93

def record_new_state(state)
  worker.state = state
  save
end

#reload ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 89

def reload
  @worker = Bumbleworks::Worker::Proxy.new(raw_hash)
end

#responding?(options = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bumbleworks/worker/info.rb', line 128

def responding?(options = {})
  options[:since] ||= Time.now - Bumbleworks.timeout
  Bumbleworks::Worker.with_worker_state_enabled do
    Bumbleworks::Support.wait_until(options) do
      updated_since?(options[:since])
    end
  end
  true
rescue Bumbleworks::Support::WaitTimeout
  false
end

#save ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 209

def save
  doc = Bumbleworks::Worker.info_document

  worker_info_hash = doc['workers'][@worker.id] || {}

  worker_info_hash.merge!(constant_worker_info_hash)
  worker_info_hash.merge!({
    'put_at' => Ruote.now_to_utc_s,
    'uptime' => uptime,
  })

  if defined?(@msgs)
    now = Time.now

    @msgs = @msgs.drop_while { |msg|
      Time.parse(msg['processed_at']) < now - 3600
    }
    mm = @msgs.drop_while { |msg|
      Time.parse(msg['processed_at']) < now - 60
    }

    hour_count = @msgs.size < 1 ? 1 : @msgs.size
    minute_count = mm.size < 1 ? 1 : mm.size

    worker_info_hash.merge!({
      'processed_last_minute' =>
        mm.size,
      'wait_time_last_minute' =>
        mm.inject(0.0) { |s, m| s + m['wait_time'] } / minute_count.to_f,
      'processed_last_hour' =>
        @msgs.size,
      'wait_time_last_hour' =>
        @msgs.inject(0.0) { |s, m| s + m['wait_time'] } / hour_count.to_f
    })
  end

  doc['workers'][@worker.id] = worker_info_hash

  r = storage.put(doc)

  @last_save = Time.now

  save if r != nil
end

#save_control_message(message) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 172

def save_control_message(message)
  doc = Bumbleworks::Worker.control_document
  doc["workers"][id] ||= {}
  doc["workers"][id]["state"] = message
  storage.put(doc)
end

#send_command(command, options = {}) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 162

def send_command(command, options = {})
  save_control_message(command)
  Bumbleworks::Worker.with_worker_state_enabled do
    Bumbleworks::Support.wait_until(options) do
      raw_hash["state"] == command
    end
  end
  reload
end

#shutdown(options = {}) ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 148

def shutdown(options = {})
  send_command("stopped", options)
end

#stalling? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bumbleworks/worker/info.rb', line 140

def stalling?
  !responding?
end

#storage ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 144

def storage
  @worker.storage || Bumbleworks.dashboard.storage
end

#unpause(options = {}) ⇒ Object Also known as: run 



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# File 'lib/bumbleworks/worker/info.rb', line 156

def unpause(options = {})
  send_command("running", options)
end

#updated_at ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 114

def updated_at
  Time.parse(raw_hash['put_at'])
end

#updated_recently?(options = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bumbleworks/worker/info.rb', line 122

def updated_recently?(options = {})
  options[:seconds_ago] ||= Bumbleworks.timeout
  latest_time = Time.now - options[:seconds_ago]
  updated_since?(latest_time)
end

#updated_since?(latest_time) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bumbleworks/worker/info.rb', line 118

def updated_since?(latest_time)
  updated_at >= latest_time
end

#uptime ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 102

def uptime
  if in_stopped_state? && worker.respond_to?(:uptime)
    worker.uptime
  else
    Time.now - worker.launched_at
  end
end

#wait_time_last_hour ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 191

def wait_time_last_hour
  raw_hash["wait_time_last_hour"]
end

#wait_time_last_minute ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 183

def wait_time_last_minute
  raw_hash["wait_time_last_minute"]
end

#worker_class_name ⇒ Object 



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# File 'lib/bumbleworks/worker/info.rb', line 98

def worker_class_name
  worker.class_name
end