Class: Steppe::StatusMap

Inherits:
Object
  • Object
show all
Defined in:
lib/steppe/status_map.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StatusMap

Returns a new instance of StatusMap.



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# File 'lib/steppe/status_map.rb', line 5

def initialize
  @responders = []
  @index = nil
end

Instance Method Details

#<<(responder) ⇒ Object 



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# File 'lib/steppe/status_map.rb', line 10

def <<(responder)
  @responders << responder
  build_index
  self
end

#each(&block) ⇒ Object 



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# File 'lib/steppe/status_map.rb', line 16

def each(&block)
  return enum_for(:each) unless block

  @responders.each(&block)
end

#find(status) ⇒ Object 



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# File 'lib/steppe/status_map.rb', line 22

def find(status)
  lo = 0
  hi = @index.size - 1

  while lo <= hi
    mid = (lo + hi) / 2
    start, finish, responder = @index[mid]

    if status < start
      hi = mid - 1
    elsif status > finish
      lo = mid + 1
    else
      return responder
    end
  end

  nil
end