Class: Linzer::Message

Inherits:
Object
  • Object
show all
Defined in:
lib/linzer/message.rb

Constant Summary collapse

DERIVED_COMPONENT = 
{
  "@method"         => :request_method,
  "@authority"      => :authority,
  "@path"           => :path_info,
  "@status"         => :status,
  "@target-uri"     => :url,
  "@scheme"         => :scheme,
  "@request-target" => :fullpath,
  "@query"          => :query_string
}.freeze

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(operation) ⇒ Message

Returns a new instance of Message.



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# File 'lib/linzer/message.rb', line 5

def initialize(operation)
  @operation = operation
  freeze
end

Class Method Details

.parse_structured_dictionary(str, field_name = nil) ⇒ Object 



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# File 'lib/linzer/message.rb', line 58

def parse_structured_dictionary(str, field_name = nil)
  Starry.parse_dictionary(str)
rescue Starry::ParseError => _
  raise Error.new "Cannot parse \"#{field_name}\" field. Bailing out!"
end

Instance Method Details

#[](field_name) ⇒ Object 



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# File 'lib/linzer/message.rb', line 39

def [](field_name)
  if !field_name.start_with?("@")
    return @operation.env[Request.rack_header_name(field_name)] if request?
    return @operation.headers[field_name]                     # if response?
  end

  method = DERIVED_COMPONENT[field_name]

  case field_name
  when "@query"
    return "?#{@operation.public_send(method)}"
  when /\A(?<field>(?<prefix>@query-param)(?<rest>;name=.+)\Z)/
    return parse_query_param Regexp.last_match
  end

  method ? @operation.public_send(method) : nil
end

#field?(f) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/linzer/message.rb', line 24

def field?(f)
  !!self[f]
end

#headers ⇒ Object 



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# File 'lib/linzer/message.rb', line 18

def headers
  return @operation.headers if response? || @operation.respond_to?(:headers)

  Request.headers(@operation)
end

#request? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/linzer/message.rb', line 10

def request?
  @operation.is_a?(Rack::Request) || @operation.respond_to?(:request_method)
end

#response? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/linzer/message.rb', line 14

def response?
  @operation.is_a?(Rack::Response) || @operation.respond_to?(:status)
end