Class: WEBrickNIO::HTTPServer::RequestHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/webricknio/httpserver.rb

Overview

Instances of this class are submitted to the threadpool to process incoming requests. It will very likely process the whole request in one shot but it might postpone the request too for a slow client

Instance Method Summary collapse

Constructor Details

#initialize(key, server, config, attachment) ⇒ RequestHandler

Returns a new instance of RequestHandler.



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# File 'lib/webricknio/httpserver.rb', line 234

def initialize(key, server, config, attachment)
  @key = key
  @sock_channel = @key.channel
  @config = config
  @server = server
  @send_response = true
  @socket_id = -1
  @attachment = attachment
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/webricknio/httpserver.rb', line 244

def call
  begin
    time1 = Time.now
    req = @attachment.request || ::WEBrickNIO::HTTPRequest.new(@config)
    res = @attachment.response || ::WEBrickNIO::HTTPResponse.new(@config)

    @socket_id = @sock_channel.socket.object_id

    socket = @sock_channel.socket

    if req.in_progress?
      @server.logger.debug "resuming request in progress"
      req.resume
    else
      # fresh request
      req.parse(@sock_channel)
    end

    if req.in_progress?
      @server.logger.debug "request in progress"
      @attachment.request = req if @attachment.request.nil?
      @attachment.response = res if @attachment.response.nil?
      @send_response = false
      return # goes to "ensure" first
    end

    res.request_method = req.request_method
    res.request_uri = req.request_uri
    res.request_http_version = req.http_version
    res.keep_alive = req.keep_alive?

    if req.unparsed_uri == "*"
      if req.request_method == "OPTIONS"
        do_OPTIONS(req, res)
        raise ::WEBrick::HTTPStatus::OK
      end
      raise ::WEBrick::HTTPStatus::NotFound, "`#{req.unparsed_uri}' not found."
    end

    servlet, options, script_name, path_info = @server.search_servlet(req.path)
    raise ::WEBrick::HTTPStatus::NotFound, "`#{req.path}' not found." unless servlet
    req.script_name = script_name
    req.path_info = path_info
    si = servlet.get_instance(self, *options)
    #@server.logger.debug(format("%s is invoked.", si.class.name))
    @server.access_log(@config, req, res)

    si.service(req, res)

  rescue ::WEBrick::HTTPStatus::EOFError => ex
    @send_response = false
    @attachment.cleanup
    @server.logger.debug(ex.message)
  rescue ::WEBrick::HTTPStatus::Error => ex
    @server.logger.error(ex)
    res.set_error(ex)
  rescue ::WEBrick::HTTPStatus::Status => ex
    res.status = ex.code
  rescue StandardError => ex
    @server.logger.error(ex)
    res.set_error(ex)
  rescue Exception => ex
    if ex.is_a?(Exception)
      @server.logger.error(ex)
    else
      message = ""
      if ex.respond_to?(:java_class) && ex.respond_to?(:stack_trace)
        @server.logger.error("error")
        ex.print_stack_trace
      else
        message = ex.inspect
      end
      @server.logger.error(message)
    end
    res.set_error("500")
  ensure
    begin
      time3 = Time.now
      @attachment.unlock
      if @send_response
        @attachment.cleanup
        res.send_response(@sock_channel)
        @server.logger.debug "time taken to send response #{Time.now - time3}"
      end
      if (!req.keep_alive? || !res.keep_alive? || (!@send_response && !req.in_progress?))
        @server.logger.debug("closing socket. req.keep alive: #{req.keep_alive}, resp.keep alive: #{res.keep_alive}, send_response: #{@send_response}, socket id: #{@socket_id}")
        @sock_channel.close
        @key.cancel
      end
    rescue Exception => ex
      if ex.is_a?(Exception)
        @server.logger.error(ex)
      else
        message = ""
        if ex.respond_to?(:java_class) && ex.respond_to?(:stack_trace)
          @server.logger.error("error")
          ex.print_stack_trace
        else
          message = ex.inspect
        end
        @server.logger.error(message)
      end
    end
    time2 = Time.now
    @server.logger.info "total request time: #{time2 - time1} sec" if @send_response
  end
end