Class: ActiveHistory::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/activehistory/connection.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/activehistory/connection.rb', line 8

def initialize(config)
  if config[:url]
    uri = URI.parse(config.delete(:url))
    config[:api_key] ||= (uri.user ? CGI.unescape(uri.user) : nil)
    config[:host]    ||= uri.host
    config[:port]    ||= uri.port
    config[:ssl] ||= (uri.scheme == 'https')
  end

  [:api_key, :host, :port, :ssl, :user_agent].each do |key|
    self.instance_variable_set(:"@#{key}", config[key])
  end

  @connection = Net::HTTP.new(host, port)
  @connection.use_ssl = ssl

  true
end

Instance Attribute Details

#api_key ⇒ Object (readonly)

Returns the value of attribute api_key.



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# File 'lib/activehistory/connection.rb', line 6

def api_key
  @api_key
end

#host ⇒ Object (readonly)

Returns the value of attribute host.



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# File 'lib/activehistory/connection.rb', line 6

def host
  @host
end

#port ⇒ Object (readonly)

Returns the value of attribute port.



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# File 'lib/activehistory/connection.rb', line 6

def port
  @port
end

#ssl ⇒ Object (readonly)

Returns the value of attribute ssl.



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# File 'lib/activehistory/connection.rb', line 6

def ssl
  @ssl
end

Instance Method Details

#post(path, body = nil, &block) ⇒ Object 



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# File 'lib/activehistory/connection.rb', line 36

def post(path, body=nil, &block)
  request = Net::HTTP::Post.new(path)

  send_request(request, body, &block)
end

#send_request(request, body = nil, &block) ⇒ Object 



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# File 'lib/activehistory/connection.rb', line 46

def send_request(request, body=nil, &block)
  request['Accept'] = 'application/json'
  request['User-Agent'] = user_agent
  request['Api-Key'] = api_key
  request['Content-Type'] = 'application/json'
  
  if body.is_a?(IO)
    request['Transfer-Encoding'] = 'chunked'
    request.body_stream =  body
  elsif body.is_a?(String)
    request.body = body
  elsif body
    request.body = JSON.generate(body)
  end

  return_value = nil
  retry_count = 0
  begin
    @connection.request(request) do |response|
      if response['API-Version-Deprecated']
        logger.warn("DEPRECATION WARNING: API v#{API_VERSION} is being phased out")
      end

      validate_response_code(response)

      # Get the cookies
      response.each_header do |key, value|
        if key.downcase == 'set-cookie' && Thread.current[:sunstone_cookie_store]
          Thread.current[:sunstone_cookie_store].set_cookie(request_uri, value)
        end
      end

      if block_given?
        return_value =yield(response)
      else
        return_value =response
      end
    end
  rescue ActiveRecord::ConnectionNotEstablished
    retry_count += 1
    retry_count == 1 ? retry : raise
  end

  return_value
end

#url ⇒ Object 



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# File 'lib/activehistory/connection.rb', line 42

def url
  "http#{ssl ? 's' : ''}://#{host}#{port != 80 ? (port == 443 && ssl ? '' : ":#{port}") : ''}"
end

#user_agent ⇒ Object 



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# File 'lib/activehistory/connection.rb', line 27

def user_agent
  [
    @user_agent,
    "Sunstone/#{ActiveHistory::VERSION}",
    "Ruby/#{RUBY_VERSION}-p#{RUBY_PATCHLEVEL}",
    RUBY_PLATFORM
  ].compact.join(' ')
end

#validate_response_code(response) ⇒ Object 



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# File 'lib/activehistory/connection.rb', line 92

def validate_response_code(response)
  code = response.code.to_i

  if !(200..299).include?(code)
    case code
    when 400
      raise ActiveHistory::Exception::BadRequest, response.body
    when 401
      raise ActiveHistory::Exception::Unauthorized, response
    when 404
      raise ActiveHistory::Exception::NotFound, response
    when 410
      raise ActiveHistory::Exception::Gone, response
    when 422
      raise ActiveHistory::Exception::ApiVersionUnsupported, response
    when 503
      raise ActiveHistory::Exception::ServiceUnavailable, response
    when 301
      raise ActiveHistory::Exception::MovedPermanently, response
    when 502
      raise ActiveHistory::Exception::BadGateway, response
    when 300..599
      raise ActiveHistory::Exception, response
    else
      raise ActiveHistory::Exception, response
    end
  end
end