Class: MagistrateMonitor::Supervisor

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/magistrate_monitor/supervisor.rb

Instance Method Summary collapse

Instance Method Details

#databag_for(worker) ⇒ Object

This method abstracts access to a worker’s databag. It guarantees to return a hash of some sort useful for referencing worker properties However, changes to this hash may not be propegated back. Quite possibly it would be better to do checking here like in set_target_state! to normalize the data?



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# File 'lib/magistrate_monitor/supervisor.rb', line 35

def databag_for(worker)
  (self.databag['workers'].is_a?(Hash) ? self.databag['workers'][worker] : {}) || {}
end

#normalize_databag_for!(worker) ⇒ Object 



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# File 'lib/magistrate_monitor/supervisor.rb', line 25

def normalize_databag_for!(worker)
  d = self.databag || {}
  d['workers'] ||= {}
  d['workers'][worker] ||= {}
  self.databag = d
end

#normalize_status_data! ⇒ Object

This makes sure that: All supervisors have a status that is a hash If it has something else for whatever reason, the real object is put in a hash under the ‘status’ key



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# File 'lib/magistrate_monitor/supervisor.rb', line 11

def normalize_status_data!
  self.status ||= {}      
  self.status['workers'] ||= {}
  
  self.status['workers'].each do |k,v|
    unless v.is_a?(Hash)
      v = {'state' => v.inspect }
    end
  end
  
  self.databag ||= {}
  self.databag['workers'] ||= {}
end

#set_target_state!(action, worker) ⇒ Object 



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# File 'lib/magistrate_monitor/supervisor.rb', line 39

def set_target_state!(action, worker)
  normalize_databag_for!(worker)
  self.databag['workers'][worker]['target_state'] = action
  self.update_attribute :databag, self.databag
end