Class: Webmachine::Decision::FSM

Inherits:

Object

• Object
• Webmachine::Decision::FSM

show all

Includes:

Flow, Helpers

Defined in:

lib/webmachine/decision/fsm.rb

Overview

Constant Summary

Constant Summary

Constants included from Helpers

Helpers::QUOTED

Constants included from Flow

Webmachine::Decision::Flow::START, Webmachine::Decision::Flow::VERSION

Constants included from Conneg

Conneg::HAS_ENCODING

Instance Attribute Summary (collapse)

• - (Object) metadata readonly

  Returns the value of attribute metadata.

• - (Object) request readonly

  Returns the value of attribute request.

• - (Object) resource readonly

  Returns the value of attribute resource.

• - (Object) response readonly

  Returns the value of attribute response.

Instance Method Summary (collapse)

• - (FSM) initialize(resource, request, response) constructor

  A new instance of FSM.

• - (Object) run

Methods included from Helpers

#accept_helper, #encode_body, #encode_body_if_set, #ensure_quoted_header, #has_response_body?, #unquote_header, #variances

Methods included from Flow

#b10, #b11, #b12, #b13, #b3, #b4, #b5, #b6, #b7, #b8, #b9, #b9a, #b9b, #c3, #c4, #d4, #d5, #decision_test, #e5, #e6, #f6, #f7, #g11, #g7, #g8, #g9, #h10, #h11, #h12, #h7, #i12, #i13, #i4, #i7, #k13, #k5, #k7, #l13, #l14, #l15, #l17, #l5, #l7, #m16, #m20, #m20b, #m5, #m7, #n11, #n16, #n5, #o14, #o16, #o18, #o18b, #o20, #p11, #p3, #v3j18

Methods included from Conneg

#build_conneg_list, #choose_charset, #choose_encoding, #choose_media_type, #do_choose

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# File 'lib/webmachine/decision/fsm.rb', line 10

def initialize(resource, request, response)
  @resource, @request, @response = resource, request, response
  @metadata = {}
end

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# File 'lib/webmachine/decision/fsm.rb', line 8

def metadata
  @metadata
end

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# File 'lib/webmachine/decision/fsm.rb', line 8

def request
  @request
end

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# File 'lib/webmachine/decision/fsm.rb', line 8

def resource
  @resource
end

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# File 'lib/webmachine/decision/fsm.rb', line 8

def response
  @response
end

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# File 'lib/webmachine/decision/fsm.rb', line 15

def run
  begin
    state = Flow::START
    loop do
      response.trace << state
      result = send(state)
      case result
      when Fixnum # Response code
        respond(result)
        break
      when Symbol # Next state
        state = result
      else # You bwoke it
        raise InvalidResource.new(state, result)
      end
    end
  rescue => e # Handle all exceptions without crashing the server
    error_response(e, state)
  end
end