better websocket error handling

private

  def execute_unsafe(socket, event, messages = [])

    return false unless event["namespace"]

    return false unless ns = @namespaces[event["namespace"].to_sym]

    return [] unless event["namespace"]

    unless ns = @namespaces[event["namespace"].to_sym]

      return([{ "error" => "invalid namespace: #{event["namespace"]}" }])

    end

    messages << discover(ns) if event["type"] == "discover_request"

    messages << widget(ns, event) if event["type"] == "widget_request"

    messages << gauge(ns, event) if event["type"] == "render_request"

        send_data m.to_json

      end

    end

  rescue Exception => e

    FnordMetric.error("[WebSocket] #{e.to_s}")

    puts e.backtrace.join("\n")

  end

  def get_uuid