I'm completely lost here. Any tips? Maybe somebody has experience
working with other UA parsing libraries?
Hi Andrii,
I have used the same library you are attempting to use in the past and
it has worked well. My needs were simple and I found the bitwalker lib
to be a great library for those needs. Here is working code showing how
I used it (note, you can get more data from it but I was only interested
in a subset):
(ns rbl.feature-extraction.user-agent
(:use [clojure.core.memoize :only [memo]])
(:require [clojure.tools.logging :as log])
(:import [nl.bitwalker.useragentutils UserAgent DeviceType Browser
OperatingSystem]))
(defn str->features [string]
(try
(let [user-agent (UserAgent. (or string ""))]
{:browser_group (-> user-agent .getBrowser .getGroup .getName)
:os_group (-> user-agent .getOperatingSystem .getGroup .getName)
:device_type (-> user-agent .getOperatingSystem .getDeviceType
.getName)})
(catch Exception e
(log/error (str "Could not derive the user-agent from " string) e)
(str->features nil))))
(def possible-features
(memo (fn []
{:os_group (set (map #(-> % .getGroup .getName)
(OperatingSystem/values)))
:browser_group (set (map #(-> % .getGroup .getName)
(Browser/values)))
:device_type (set (map #(.getName %) (DeviceType/values)))})))
In gist form along with some midje facts: https://gist.github.com/3946906
Hope that helps,
Ben
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