Class: Localeapp::Poller

Inherits:
Object
  • Object
show all
Includes:
ApiCall
Defined in:
lib/localeapp/poller.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ApiCall

#api_call

Constructor Details

#initialize ⇒ Poller

Returns a new instance of Poller.



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# File 'lib/localeapp/poller.rb', line 15

def initialize
  @polled_at  = synchronization_data[:polled_at]
  @updated_at = synchronization_data[:updated_at]
end

Instance Attribute Details

#polled_at ⇒ Object

when we last asked the service for updates



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# File 'lib/localeapp/poller.rb', line 10

def polled_at
  @polled_at
end

#updated_at ⇒ Object

the last time the service had updates for us



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# File 'lib/localeapp/poller.rb', line 13

def updated_at
  @updated_at
end

Instance Method Details

#handle_failure(response) ⇒ Object 



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# File 'lib/localeapp/poller.rb', line 59

def handle_failure(response)
  if response.code == 304
    Localeapp.log_with_time "No new data"
    # Nothing new, update synchronization files
    write_synchronization_data!(current_time, updated_at)
  end
  @success = false
end

#handle_success(response) ⇒ Object 



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# File 'lib/localeapp/poller.rb', line 52

def handle_success(response)
  Localeapp.log_with_time "poll success"
  @success = true
  Localeapp.updater.update(Localeapp.load_yaml(response))
  write_synchronization_data!(current_time, Time.parse(response.headers[:date]))
end

#needs_polling? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/localeapp/poller.rb', line 35

def needs_polling?
  synchronization_data[:polled_at] < (Time.now.to_i - Localeapp.configuration.poll_interval)
end

#needs_reloading? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/localeapp/poller.rb', line 39

def needs_reloading?
  synchronization_data[:updated_at] != @updated_at
end

#poll! ⇒ Object 



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# File 'lib/localeapp/poller.rb', line 43

def poll!
  api_call :translations,
    :url_options => { :query => { :updated_at => updated_at }},
    :success => :handle_success,
    :failure => :handle_failure,
    :max_connection_attempts => 1
  @success
end

#synchronization_data ⇒ Object 



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# File 'lib/localeapp/poller.rb', line 20

def synchronization_data
  if File.exists?(Localeapp.configuration.synchronization_data_file)
    Localeapp.load_yaml_file(Localeapp.configuration.synchronization_data_file) ||
    default_synchronization_data
  else
    default_synchronization_data
  end
end

#write_synchronization_data!(polled_at, updated_at) ⇒ Object 



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# File 'lib/localeapp/poller.rb', line 29

def write_synchronization_data!(polled_at, updated_at)
  File.open(Localeapp.configuration.synchronization_data_file, 'w+') do |f|
    f.write({:polled_at => polled_at.to_i, :updated_at => updated_at.to_i}.to_yaml)
  end
end