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# frozen_string_literal: true
# Copyright, 2020, 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 'wrapper'
module Protocol
module HTTP
module Body
# Invokes a callback once the body has completed, either successfully or due to an error.
class Completable < Wrapper
def self.wrap(message, &block)
if body = message&.body and !body.empty?
message.body = self.new(message.body, block)
else
yield
end
end
def initialize(body, callback)
super(body)
@callback = callback
end
def finish
if @body
result = super
@callback.call
@body = nil
return result
end
end
def close(error = nil)
if @body
super
@callback.call(error)
@body = nil
end
end
end
end
end
end
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