String logEntryPattern = "^([\\d.]+) (\\S+) (\\S+) \\[([\\w:/]+\\s[+\\-]\\d{4})\\] \"(.+?)\" (\\d{3}) (\\d+) \"([^\"]+)\" \"([^\"]+)\"";
System.out.println("Using RE Pattern:");
System.out.println(logEntryPattern);
System.out.println("Input line is:");
System.out.println(logEntryLine);
Pattern p = Pattern.compile(logEntryPattern);
Matcher matcher = p.matcher(logEntryLine);
if (!matcher.matches() ||
NUM_FIELDS != matcher.groupCount()) {
System.err.println("Bad log entry (or problem with RE?):");
System.err.println(logEntryLine);
return;
}
System.out.println("IP Address: " + matcher.group(1));
System.out.println("Date&Time: " + matcher.group(4));
System.out.println("Request: " + matcher.group(5));
System.out.println("Response: " + matcher.group(6));
System.out.println("Bytes Sent: " + matcher.group(7));
if (!matcher.group(8).equals("-"))
System.out.println("Referer: " + matcher.group(8));
System.out.println("Browser: " + matcher.group(9));
