Contents

# A steady walker that tries 3 times each step
class Restfulie::Client::Mikyung::SteadyStateWalker
  
  def move(goal, current, mikyung)
    step = goal.next_step(current, mikyung)
    raise Restfulie::Client::UnableToAchieveGoalError, "No step was found for #{current}" unless step
    Restfulie::Common::Logger.logger.debug "Mikyung > next step will be #{step}"
    step = step.new if step.kind_of? Class
    try_to_execute(step, current, 3, mikyung)
  end

  private
  
  def try_to_execute(step, current, max_attempts, mikyung)
    raise "Unable to proceed when trying to #{step}" if max_attempts == 0

    resource = step
    raise "Step returned 'give up'" if resource.nil?

    if step.respond_to?(:execute)
      resource = step.execute(current, mikyung)
    end

    if resource.response.code != 200
      try_to_execute(step, current, max_attempts-1, mikyung)
    else
      Restfulie::Common::Logger.logger.debug resource.response.body
      resource
    end
  end

end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
restfulie-0.8.0	lib/restfulie/client/mikyung/steady_state_walker.rb