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# frozen_string_literal: true
# Copyright, 2018, by Samuel G. D. Williams. <http://www.codeotaku.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
require_relative 'readable'
module Protocol
module HTTP
module Body
# A body which buffers all it's contents.
class Buffered < Readable
# Wraps an array into a buffered body.
# @return [Readable, nil] the wrapped body or nil if nil was given.
def self.wrap(body)
if body.is_a?(Readable)
return body
elsif body.is_a?(Array)
return self.new(body)
elsif body.is_a?(String)
return self.new([body])
elsif body
return self.for(body)
end
end
def self.for(body)
chunks = []
body.each do |chunk|
chunks << chunk
end
self.new(chunks)
end
def initialize(chunks = [], length = nil)
@chunks = chunks
@length = length
@index = 0
end
attr :chunks
def finish
self
end
def length
@length ||= @chunks.inject(0) {|sum, chunk| sum + chunk.bytesize}
end
def empty?
@index >= @chunks.length
end
# A buffered response is always ready.
def ready?
true
end
def read
if chunk = @chunks[@index]
@index += 1
return chunk.dup
end
end
def write(chunk)
@chunks << chunk
end
def rewind
@index = 0
end
def inspect
"\#<#{self.class} #{@chunks.size} chunks, #{self.length} bytes>"
end
end
end
end
end
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