28 Apr
2007
28 Apr
'07
10:48 a.m.
Hi
This query is in addition to a query I had posted some time before.
When a document [of a particular type - which follows a particular template] is edited and
submitted, or newly created, I want to log the IP address of the user plus some of the
values of certain fields in that form.
One reply I got was to use servlet filters? I tried using servlet filters and I found that
it is possible.
My doubts are :
Is Servlet filters the preferred way for doing what I require in XWiki? Is there any other
ways to do the same in xwiki?
If Servlet filter is the way, then is there any preferred way to use in xwiki? (What I did
was to place the servlets in WEB_INF/classes folder and added the entry in web.xml.)
Regards
Roopesh
30 Apr
30 Apr
6:11 a.m.
New subject: Problem with servlet
Hi All,
(Many thanks for providing the XWIKI RC2 release)
I have created a servlet which return an XML document. The servlet was
placed in the WEB_INF/classes. So it work correctly but returns in some
situation strange content. According to my tests, the servlet code is
correct but the wrong content is maybe related to the cache.
/First situation, the servlet:/
----------------------------
- It open a connection to database (XWIKI databased)
- The servlet receive a parameter which is the name of an existing XWiki
document
- It send a SQL request for retrieving the content of the specified
document: select XWIKI_CONTENT FROM ...WHERE XWIKI_NAME = XXXX), XXXX =
is the full name of a document.
- According to the content of my XWiki database the SQL request return
only one document.
- Then it process the document and return an XML document
*RESULT: *
- I got a correct result = * <?xml version="1.0"
encoding="UTF-8"?> +
'A'* (whether I refresh the content in the internet explorer the result
is the same)
(the XML header + the content)
/Another situation: /
------------------
- It open a connection to database
- The servlet receive a parameter which *is similar to *the name *of a
set of *existing XWiki document
- It send a SQL request for retrieving the content of these documents:
select XWIKI_CONTENT FROM ...WHERE XWIKI_NAME *like "%YYYY%"*), YYYY is
'string' for retrieving a set of documents
*- The result is one document which is correct result according to the
content of my database*
- It retrieve the content in an /*while** loop*/
- process the the content
- return the XML document
Here the is JAVA code:
ResultSet st = .....;
String content = "<?xml version=\"1.0\"
encoding=\"UTF-8\"?>";
while (st.next()){
content = content + processContent(st.getString(XWD_CONTENT));
}
...
this.writeResponse(resp, content); // *content is an XML document*
***
RESULT:
- First content (in the explorer) = <?xml version="1.0"
encoding="UTF-8"?> *A* (correct)
- When I refresh the explorer = <?xml version="1.0"
encoding="UTF-8"?> *A A
* - I refresh again the explorer = <?xml version="1.0"
encoding="UTF-8"?> *A A* *A*
...
- N refresh = <?xml version="1.0" encoding="UTF-8"?> *A A* *A
...A (N
times)*
(where *A* is the same content as *the first situation*)
The servlet was transformed to class with main method and it return
correct result...!!!
I have also made test under the last version 'XWIKI RC2' but got the
same problem.
Is it related to the cache memory?
I spend two days trying to solve it but without success....
Any help will be deeply appreciated.
Thanks in advance.
Cheers
----------
Youcef Bey
3:53 p.m.
New subject: [xwiki-users] On using servlet filters
With the caveat that, as only one member of the XWiki community and (not
even a developer), I have no special authority to pronounce what is "the
preferred way" for doing this, but as one who has implemented a servlet
filter with XWiki I will give what I see as some of the major parameters
of your decision.
One major consideration is whether your logging depends on any XWiki
context information, or only on the content of the form. The action
servlet builds a great deal of context before actually paying attention
to the form content. This, it turns out, is not difficult to duplicate,
but you do have the risk that this will change with later versions.
It's not clear to me whether it's intended to be an officially supported
API, and thus guaranteed not to change; I can tell you that it does not
appear to have changed between the 0.9.840 version and 1.0, because my
servlet filter that does this works on both.
Another important issue is whether you actually want this to happen
before XWiki attempts to deal with the form entry. If the filter were
to log data that would be invalidated if the request failed, you would
then have to undo it, which would be harder (or impossible, depending on
the logging mechanism), though logging the subsequent failure should be
acceptable.
If the HTTP requests and responses contain all the information you
require, consider the AWStats package (http://awstats.sourceforge.net/).
It provides a great deal of information merely by looking at HTTP server
logs, and it may be easily extensible to handle forms data. Of course,
being an open-source project, I know it's extensible; the question is
how easily.
brain[sic]
-----Original Message-----
From: roopesh(a)digitalglue.in [mailto:roopesh@digitalglue.in]
Sent: Saturday, April 28, 2007 3:49 AM
To: xwiki-users(a)objectweb.org
Subject: [xwiki-users] On using servlet filters
Hi
This query is in addition to a query I had posted some time before.
When a document [of a particular type - which follows a
particular template] is edited and submitted, or newly
created, I want to log the IP address of the user plus some
of the values of certain fields in that form.
One reply I got was to use servlet filters? I tried using
servlet filters and I found that it is possible.
My doubts are :
Is Servlet filters the preferred way for doing what I require
in XWiki? Is there any other ways to do the same in xwiki?
If Servlet filter is the way, then is there any preferred way
to use in xwiki? (What I did was to place the servlets in
WEB_INF/classes folder and added the entry in web.xml.)
Regards
Roopesh
4:01 p.m.
New subject: [xwiki-users] On using servlet filters
I would like to add that my need (an external authentication and
auto-registration feature)required completion of its operation before
XWiki received the request.
If AWStats doesn't fill your need, there is also the XWiki notification
interface, with which I am not yet familiar enough to describe it fully,
but I believe that its rules are searched on every request, giving you
the insertion point that you need as well as the full XWiki context that
may also be required.
brain[sic]
6446
days inactive
6448
days old
3 comments
3 participants
participants (3)
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bey -
roopesh＠digitalglue.in -
THOMAS, BRIAN M (ATTSI)