/*
* Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
* All rights reserved. Software written by Ian F. Darwin and others.
* $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
* cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
* pioneering role in inventing and promulgating (and standardizing) the Java
* language and environment is gratefully acknowledged.
*
* The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
* inventing predecessor languages C and C++ is also gratefully acknowledged.
*/
import
java.util.regex.*;
/**
* Common fields for Apache Log demo.
*/
interface
LogExample
{
/** The number of fields that must be found. */
public static final
int
NUM_FIELDS =
9
;
/** The sample log entry to be parsed. */
public static final
String logEntryLine =
"123.45.67.89 - - [27/Oct/2000:09:27:09 -0400] /"GET /java/javaResources.html HTTP/1.0/" 200 10450 /"-/" /"Mozilla/4.6 [en] (X11; U; OpenBSD 2.8 i386; Nav)/""
;
}
/**
* Parse an Apache log file with Regular Expressions
*/
public class
LogRegExp
implements
LogExample
{
public static
void
main
(
String argv
[]) {
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
))
;
}
}
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