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Posted to users@tomcat.apache.org by Jean-Noël Colin <jn...@gmail.com> on 2010/12/22 09:48:44 UTC
Getting detailed list of active sessions for a Context
Hi,
I'm developing a webapp and I would like to be able to display the list of active sessions for that specific webapp, in a specific page, and I'd like to get a detailed view: Session Id, Creation time, last activity, IP address, username (in case he's authenticated)
I searched forums and the web, and found the way to get access to the HttSession, by defining an HttpSessionListener. But I would like to get more info, like what's made available through the manager interface.
I tried defining a Manager for the context (org.apache.catalina.session.StandardManager which is the default, btw), but can't find a way to access it from the jsp.
I also tried casting the HttpSession retrieved in the HttpSessionListener, without success.
Would you have any further suggestion?
Best regards
Jean-Noël Colin
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Re: Getting detailed list of active sessions for a Context
Posted by Jean-Noël Colin <je...@fundp.ac.be>.
Many thanks Konstantin. I'll look into the Valve idea
Cheers
Jean-Noël
On 22 Dec 2010, at 12:23, Konstantin Kolinko wrote:
> 2010/12/22 Jean-Noël Colin <jn...@gmail.com>:
>>
>> I also tried casting the HttpSession retrieved in the HttpSessionListener, without success.
>
> That would be StandardSessionFacade, not a StandardSession.
>
>> Would you have any further suggestion?
>
> The manager webapp (aka HTMLManagerServlet) uses JMX. You may try
> using it as well.
>
>> Session Id, Creation time, last activity, IP address, username (in case he's authenticated)
>>
>
> There is no IP address information in a session, and "username" that
> the Manager webapp displays is just a "Guessed User name" -- it looks
> for certain attribute names in the session, in case an authentication
> framework stored the information there.
>
> You may implement a Filter (or Valve) that will "postprocess" a
> request and extract the information you are looking for from there
> (and store it as a session attribute, or put it in your own specific
> component).
>
> Best regards,
> Konstantin Kolinko
>
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Re: Getting detailed list of active sessions for a Context
Posted by Konstantin Kolinko <kn...@gmail.com>.
2010/12/22 Jean-Noël Colin <jn...@gmail.com>:
>
> I also tried casting the HttpSession retrieved in the HttpSessionListener, without success.
That would be StandardSessionFacade, not a StandardSession.
> Would you have any further suggestion?
The manager webapp (aka HTMLManagerServlet) uses JMX. You may try
using it as well.
> Session Id, Creation time, last activity, IP address, username (in case he's authenticated)
>
There is no IP address information in a session, and "username" that
the Manager webapp displays is just a "Guessed User name" -- it looks
for certain attribute names in the session, in case an authentication
framework stored the information there.
You may implement a Filter (or Valve) that will "postprocess" a
request and extract the information you are looking for from there
(and store it as a session attribute, or put it in your own specific
component).
Best regards,
Konstantin Kolinko
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Re: Getting detailed list of active sessions for a Context
Posted by Jean-Noël Colin <je...@fundp.ac.be>.
Hi
Thanks for the feedback; actually, jsp or servlet is not really the point, since I'm using icefaces anyway.
So it seems that I can't get access to the list of sessions connected to my webapp, except the limited information provided by HttpSession?
Cheers
Jean-Noël
On 22 Dec 2010, at 10:19, Pid * wrote:
> On 22 Dec 2010, at 08:49, "Jean-Noël Colin" <jn...@gmail.com> wrote:
>
>> Hi,
>>
>> I'm developing a webapp and I would like to be able to display the list of active sessions for that specific webapp, in a specific page, and I'd like to get a detailed view: Session Id, Creation time, last activity, IP address, username (in case he's authenticated)
>
> The below will get you the session details but not the username.
>
>>
>> I searched forums and the web, and found the way to get access to the HttSession, by defining an HttpSessionListener. But I would like to get more info, like what's made available through the manager interface.
>>
>> I tried defining a Manager for the context (org.apache.catalina.session.StandardManager which is the default, btw), but can't find a way to access it from the jsp.
>
> As you can see from the package name this is an internal tomcat class
> not a servlet spec class.
>
> The servlet spec is not designed to permit access to the container
> (tomcat) implementation.
>
>> I also tried casting the HttpSession retrieved in the HttpSessionListener, without success.
>>
>> Would you have any further suggestion?
>
> See PSIProbe and investigate JMX.
> Note: you may wish to perform logic in a Servlet rather than a JSP.
>
>
> p
>
>
>>
>> Best regards
>>
>> Jean-Noël Colin
>>
>>
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>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>>
>
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Re: Getting detailed list of active sessions for a Context
Posted by Pid * <pi...@pidster.com>.
On 22 Dec 2010, at 08:49, "Jean-Noël Colin" <jn...@gmail.com> wrote:
> Hi,
>
> I'm developing a webapp and I would like to be able to display the list of active sessions for that specific webapp, in a specific page, and I'd like to get a detailed view: Session Id, Creation time, last activity, IP address, username (in case he's authenticated)
The below will get you the session details but not the username.
>
> I searched forums and the web, and found the way to get access to the HttSession, by defining an HttpSessionListener. But I would like to get more info, like what's made available through the manager interface.
>
> I tried defining a Manager for the context (org.apache.catalina.session.StandardManager which is the default, btw), but can't find a way to access it from the jsp.
As you can see from the package name this is an internal tomcat class
not a servlet spec class.
The servlet spec is not designed to permit access to the container
(tomcat) implementation.
> I also tried casting the HttpSession retrieved in the HttpSessionListener, without success.
>
> Would you have any further suggestion?
See PSIProbe and investigate JMX.
Note: you may wish to perform logic in a Servlet rather than a JSP.
p
>
> Best regards
>
> Jean-Noël Colin
>
>
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