Class: Pipelines::Pipeline

Inherits:
Object
  • Object
show all
Defined in:
lib/readingme/pipelines.rb

Overview

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Pipeline

Returns a new instance of Pipeline.



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# File 'lib/readingme/pipelines.rb', line 14

def initialize
  @output, @input = IO.pipe
end

Instance Method Details

#<<(data) ⇒ Object 



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# File 'lib/readingme/pipelines.rb', line 30

def << data
  data = Array(data) unless data.is_a? IO
  data.each do |line|
    @input.puts line
  end
end

#add(callable) ⇒ Object Also known as: | 



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# File 'lib/readingme/pipelines.rb', line 18

def add callable
  l_out = @output
  n_out, n_in = IO.pipe
  @output = n_out
  Thread.new do
    callable.call(l_out, n_in)
    n_in.close
  end
  self
end

#close ⇒ Object Also known as: stop 



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# File 'lib/readingme/pipelines.rb', line 37

def close; @input.close; end

#each(&block) ⇒ Object 



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# File 'lib/readingme/pipelines.rb', line 41

def each(&block); @output.each(&block); end

#read ⇒ Object 



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# File 'lib/readingme/pipelines.rb', line 40

def read; @output.read; end