Class: Protocol::HTTP::Body::Rewindable

Inherits:
Wrapper show all
Defined in:
lib/protocol/http/body/rewindable.rb

Overview

A body which buffers all it’s contents as it is ‘#read`.

Instance Attribute Summary

Attributes inherited from Wrapper

#body

Instance Method Summary collapse

Methods inherited from Wrapper

#call, #close, #finish, #length, #stream?, wrap

Methods inherited from Readable

#call, #close, #each, #finish, #join, #length, #stream?

Constructor Details

#initialize(body) ⇒ Rewindable 



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# File 'lib/protocol/http/body/rewindable.rb', line 31

def initialize(body)
  super(body)
  
  @chunks = []
  @index = 0
end

Instance Method Details

#buffered ⇒ Object

A rewindable body wraps some other body. Convert it to a buffered body



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# File 'lib/protocol/http/body/rewindable.rb', line 47

def buffered
  Buffered.new(@chunks)
end

#empty? ⇒ Boolean 



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# File 'lib/protocol/http/body/rewindable.rb', line 38

def empty?
  (@index >= @chunks.size) && super
end

#inspect ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 70

def inspect
  "\#<#{self.class} #{@index}/#{@chunks.size} chunks read>"
end

#read ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 51

def read
  if @index < @chunks.size
    chunk = @chunks[@index]
    @index += 1
  else
    if chunk = super
      @chunks << chunk
      @index += 1
    end
  end
  
  # We dup them on the way out, so that if someone modifies the string, it won't modify the rewindability.
  return chunk&.dup
end

#ready? ⇒ Boolean 



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# File 'lib/protocol/http/body/rewindable.rb', line 42

def ready?
  (@index < @chunks.size) || super
end

#rewind ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 66

def rewind
  @index = 0
end