public static Optional createFromLog()

in src/main/java/com/googlesource/gerrit/plugins/auditsl4j/logsource/HTTPLog.java [71:103]

30 lines of code
3 McCabe index (conditional complexity)


  public static Optional<HTTPLog> createFromLog(String line) {
    // HTTP log example:
    // 104.32.164.100 - - [24/Jan/2019:00:00:03 +0000] "GET /plugins/events-log/ HTTP/1.1" 404 9 -
    // "Apache-HttpClient/4.5.3 (Java/1.8.0_191)"
    Matcher a =
        Pattern.compile(
                "^(?<ip>.*?)\\s-\\s(?<user>.*?)\\s\\["
                    + "(?<timestamp>.*?)\\]\\s\""
                    + "(?<method>\\w+)\\s(?<resource>.*?)\\s(?<protocol>.*?)\"\\s"
                    + "(?<status>\\d+)\\s(?<contentLength>\\d+|-)\\s(?<referrer>.*?)\\s(?<userAgent>.*?)$")
            .matcher(line);
    if (a.matches()) {
      try {
        return Optional.of(
            new HTTPLog(
                a.group("ip"),
                a.group("user"),
                a.group("timestamp"),
                a.group("method"),
                a.group("resource"),
                a.group("protocol"),
                Integer.parseInt(a.group("status")),
                a.group("contentLength"),
                a.group("referrer"),
                a.group("userAgent")));
      } catch (Exception e) {
        log.error("Something wrong while parsing line: " + line);
      }
    } else {
      log.error("Can't extract any info from line: " + line);
    }
    return Optional.empty();
  }