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

#close, #empty?, #finish, #length

Methods inherited from Readable

#close, #each, #empty?, #finish, #join, #length

Constructor Details

#initialize(body) ⇒ Rewindable

Returns a new instance of Rewindable.



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# File 'lib/protocol/http/body/rewindable.rb', line 30

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

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 56

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

#read ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 37

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

#rewind ⇒ Object 



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# File 'lib/protocol/http/body/rewindable.rb', line 52

def rewind
	@index = 0
end