Class: HTTP::Response::Body

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Enumerable
Defined in:
lib/http/response/body.rb

Overview

A streamable response body, also easily converted into a string

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(stream, encoding: Encoding::BINARY) ⇒ Body

Returns a new instance of Body.



19
20
21
22
23
24
25
 
# File 'lib/http/response/body.rb', line 19

def initialize(stream, encoding: Encoding::BINARY)
  @stream     = stream
  @connection = stream.is_a?(Inflater) ? stream.connection : stream
  @streaming  = nil
  @contents   = nil
  @encoding   = find_encoding(encoding)
end

Instance Attribute Details

#connection ⇒ HTTP::Connection (readonly)

The connection object used to make the corresponding request.

Returns:



17
18
19
 
# File 'lib/http/response/body.rb', line 17

def connection
  @connection
end

Instance Method Details

#each ⇒ Object

Iterate over the body, allowing it to be enumerable



35
36
37
38
39
 
# File 'lib/http/response/body.rb', line 35

def each
  while (chunk = readpartial)
    yield chunk
  end
end

#inspect ⇒ Object

Easier to interpret string inspect



71
72
73
 
# File 'lib/http/response/body.rb', line 71

def inspect
  "#<#{self.class}:#{object_id.to_s(16)} @streaming=#{!!@streaming}>"
end

#readpartial(*args) ⇒ Object 



28
29
30
31
32
 
# File 'lib/http/response/body.rb', line 28

def readpartial(*args)
  stream!
  chunk = @stream.readpartial(*args)
  chunk.force_encoding(@encoding) if chunk
end

#stream! ⇒ Object

Assert that the body is actively being streamed

Raises:



65
66
67
68
 
# File 'lib/http/response/body.rb', line 65

def stream!
  raise StateError, "body has already been consumed" if @streaming == false
  @streaming = true
end

#to_s ⇒ String Also known as: to_str

Returns eagerly consume the entire body as a string.

Returns:

  • (String) —

    eagerly consume the entire body as a string

Raises:



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
 
# File 'lib/http/response/body.rb', line 42

def to_s
  return @contents if @contents

  raise StateError, "body is being streamed" unless @streaming.nil?

  begin
    @streaming  = false
    @contents   = String.new("").force_encoding(@encoding)

    while (chunk = @stream.readpartial)
      @contents << chunk.force_encoding(@encoding)
      chunk.clear # deallocate string
    end
  rescue
    @contents = nil
    raise
  end

  @contents
end