RE: [enhydra] Session Data Destruction Event

Hi, 
Thanks for your quick answer, but we tried to put our implementation in the
shared/lib, and in fact the error do not occur but my implementation are not
called. Is there anything that I'm forgetting about?

Thanks for your help.

Cristiano.

-----Original Message-----
From: Slobodan Vujasinovic [mailto:[email protected]] 
Sent: quarta-feira, 20 de Julho de 2005 11:11
To: [email protected]
Subject: Re: [enhydra] Session Data Destruction Event

Hi Cristiano,

problem probably is EAF-APP binary deployment issue!

EAF binaries (including StandardSessionManager implementation) are 
placed in '<enhydra_root>/multiserver/shared/lib' directory and they are 
loaded by 'Shared Class Loader'. Your application binaries are placed in 
application context 'lib' ('WEB-INF/lib') directory and are loaded by 
'Webapp Class Loader'. 'Shared Class Loader' is parent loader of 'Webapp 
Class Loader' and classes loaded by him ('Shared Class Loader') are not 
able to 'see' classes loaded by 'Webapp Class Loader'.

Your custom (SessionHome and SessionUserTable) implementation is 
initialized by 'StandardSessionManager'. The reason of 
'java.lang.reflect.InvocationTargetException' probably is in fact that 
'StandardSessionManager' implementation (loaded by 'Shared Class 
Loader') is not able to see your custom (SessionHome and 
SessionUserTable) implementation (probably loaded by 'Webapp Class Loader').

Solution would be to load your custom (SessionHome and SessionUserTable) 
implementation trough 'Shared Class Loader' (e.g. place this binary in 
'<enhydra_root>/multiserver/shared/lib' directory).

I'm waiting your response regarding this issue!

Regards,
  Slobodan Vujasinovic
Enhydra Development Team



cristiano cunha wrote:

>Hi,
>This way of rewriting session manager work fine in enhydra5.X, but we are
>facing a problem when using enhydra6.4: 
>
>caused by class com.lutris.appserver.server.ApplicationException:
>java.lang.reflect.InvocationTargetException:
>java.lang.reflect.InvocationTargetException
>
>We try your solution but this exception occur, any ideia ?
>Our web.xml configuration file:
><env-entry>
>    <env-entry-name>SessionManager/Class</env-entry-name>
> 
><env-entry-value>com.lutris.appserver.server.sessionEnhydra.StandardSession
M
>anager</env-entry-value>
>    <env-entry-type>java.lang.String</env-entry-type>
>  </env-entry>
>
>  <env-entry>
>    <env-entry-name>SessionManager/SessionHome/Mode</env-entry-name>
>    <env-entry-value>CUSTOM</env-entry-value>
>    <env-entry-type>java.lang.String</env-entry-type>
>  </env-entry>   
>  
>  <env-entry>
>    <env-entry-name>SessionManager/SessionHome/Class</env-entry-name>
>    <env-entry-value>CustomSessionHome</env-entry-value>
>    <env-entry-type>java.lang.String</env-entry-type>
> </env-entry>
>
>
>  <env-entry>
>    <env-entry-name>SessionManager/SessionUserTable/Class</env-entry-name>
>    <env-entry-value>CustomSessionUserTable</env-entry-value>
>    <env-entry-type>java.lang.String</env-entry-type>
> </env-entry>
>
>Thanks for your help.
>
>Cristiano.
>
>-----Original Message-----
>From: Ricardo Tedim [mailto:[email protected]] 
>Sent: sexta-feira, 6 de Maio de 2005 18:20
>To: [email protected]
>Subject: Re: [enhydra] Session Data Destruction Event
>
>Seems to be what I was looking for. I'll give it a try and get back to you.
>
>Thanks for your help.
>
>Ricardo
>
>
>Slobodan Vujasinovic wrote:
>
>  
>
>>Hi,
>>
>>New (custom) 'SessionManager' implementation in Enhydra 5.X mid be a
>>    
>>
>problem
>  
>
>>while in Enhydra 6.X you have 'SessionManager.Class' configuration option
>>    
>>
>so
>  
>
>>you are able to elegantly integrate custom 'SessionManager'
implementation.
>>But, I think that faster and cleaner way to do this is to generate custom
>>implementations of "SessionHome" and "SessionUserTable".
>>This is configurable in both Enhydra 5.X and Enhydra 6.X Server.
>>
>>Depending on "SessionHome.Mode" that you are using (BASIC by default) you
>>can extend existing Enhydra (EAF) implementations.
>>As explanation example I'll use BASIC "SessionHome.Mode" option.
>>
>>You can create your 'CustomSessionHome' class that extends
>>'BasicSessionHome' enhydra implementation and override its
>>'removeSession(String sessionKey)' method.
>>-------------------------------------------------------
>>public synchronized void removeSession(String sessionKey)
>>        throws SessionException {
>>        /**
>>         *  Do your thing here
>>         */
>>        super.removeSession(sessionKey);
>>    }
>>--------------------------------------------------------
>>
>>Note that 'BasicSessionHome' class has dummy implementation of
'shutdown()'
>>method (called on application shutdown) so I recommend you to additionally
>>override (implement) this method.
>>
>>After that you can create 'CustomSessionUserTable' class that extends
>>already existing 'BasicSessionUserTable' implementation (class is not
>>    
>>
>public
>  
>
>>so you can expect packaging issue here) without any additional
>>implementation.
>>
>>At the end, don't forget to change (add) adequate application
configuration
>>properties:
>>
>>CONF configuration file:
>>SessionManager.SessionHome.Class = CusomSessionHome
>>
>>
>>SessionManager.SessionHome.Mode = CUSTOM
>>
>>
>>SessionManager.SessionUserTable.Class = CustomSessionUserTable
>>
>>
>>web.xml configuration file:
>><env-entry>
>>
>>     <env-entry-name>SessionManager/SessionHome/Class</env-entry-name>
>>
>>     <env-entry-value>CustomSessionHome</env-entry-value>
>>
>>    <env-entry-type>java.lang.String</env-entry-type>
>>
>></env-entry>
>>
>>
>><env-entry>
>>
>>    <env-entry-name>SessionManager/SessionHome/Mode</env-entry-name>
>>
>>   <env-entry-value>CUSTOM</env-entry-value>
>>
>>   <env-entry-type>java.lang.String</env-entry-type>
>>
>></env-entry>
>>
>>
>><env-entry>
>>
>>    <env-entry-name>SessionManager/SessionUserTable/Class</env-entry-name>
>>
>>    <env-entry-value>CustomSessionUserTable</env-entry-value>
>>
>>    <env-entry-type>java.lang.String</env-entry-type>
>>
>></env-entry>
>>
>>Hope this helps!
>>
>>Regards,
>>    Slobodan Vujasinovic
>>Enhydra Development Team
>>
>>
>>
>>
>>----- Original Message -----
>>From: "Ricardo Tedim" <[email protected]>
>>To: <[email protected]>
>>Sent: Thursday, May 05, 2005 10:12 PM
>>Subject: [enhydra] Session Data Destruction Event
>>
>>
>> 
>>
>>    
>>
>>>Hi,
>>>
>>>I need to intercept the session destruction "event" in order to trigger
>>>some backend operations. I looked through the mailing list and I haven't
>>>found any answer on this. Do you how this can be done in Enhydra 5.1 and
>>>6.3? Do I have to write a custom session manager for this?
>>>
>>>Thanks in advance,
>>>Ricardo Tedim
>>>
>>>
>>>
>>>
>>>   
>>>
>>>      
>>>
>
>
>
>
>
>  
>
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