Autocasting and session.getAttribute() in Java 1.5

I am trying to migrate an application to Java 1.5 and I'm having difficulties with the session.getAttribute() method and autocasting.
I have a Hashtable which I declare like below:
Hashtable<String,AdmUserData> data = new Hashtable<String,AdmUserData>();
AdmUserData is a class I use. This declaration works fine.
I use the HttpSession object to store this Hashtable:
session.setAttribute("user_data", data);
The problem I have is when I try to get the Hashtable from the session object:
Hashtable<String,AdmUserData> data = session.getAttribute("user_data");
This gives me an error of "incompatible types":
incompatible types
found : java.lang.Object
required: java.util.Hashtable<java.lang.String,cy.com.netinfo.util.AdmUserData>
session.getAttribute() method returns Object; why doesn't autocasting work in this case and how can I manage to overcome this problem?
I tried the following with no success:
Hashtable<String,AdmUserData> data = (Hashtable)session.getAttribute("user_data");
I also tried the following again with no success:
Hashtable<String,AdmUserData> data = (Hashtable<String,AdmUserData>)session.getAttribute("user_data");
Thanx
Demetris.

incompatible types
found : java.lang.Object
required:
java.util.Hashtable<java.lang.String,cy.com.netinfo.ut
il.AdmUserData>I would suggest you not to use generics here. I doubt if the J2EE libraries still support / use that.

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     2011-09-29 13:15:39,851 ERROR [STDERR]      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
     2011-09-29 13:15:39,854 ERROR [STDERR]      at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
     2011-09-29 13:15:39,857 ERROR [STDERR]      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     2011-09-29 13:15:39,860 ERROR [STDERR]      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
     2011-09-29 13:15:39,862 ERROR [STDERR]      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
     2011-09-29 13:15:39,866 ERROR [STDERR]      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
     2011-09-29 13:15:39,870 ERROR [STDERR]      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
     2011-09-29 13:15:39,874 ERROR [STDERR]      at java.lang.Thread.run(Thread.java:619)
     2011-09-29 13:15:39,877 INFO [STDOUT] OUT getCredenziali: tonywebAs you can see I'm using the "sample" agentApp.war.
What am I missing ? It "crashes" as for getAttributes() call :/
I thought it could be because I didn't setup LDAP DataStore ... so I set up Active Directory Data Store.
While in openAM console (from outside domain) I can see (from Subjects tab) Active Directory users and relative information
(like FirstName (=givenName), Surname (=sn), Full Name (=cn), etc.) ... when I try again with idm/EndUser (from a domain machine)
I get the same error:
     Message:Plug-in encountered an ldap exception. LDAP Error 32: The entry specified in the request does not exist.What should I do now ?
If you need more clarifications ... just ask :)
Thank you in advance and sorry for the big post.
Best Regards,
Tony
P.D. By the way, my OpenAM configuration does not create any "amAuthWindowsDesktopSSO.log" :(
I setup, from opensso/Debug.jsp message level for Authentication ... but it still doesn't create this log ... can you please tell me how to let openAM write it ?
Again thank you

Weird enough, changing to ADAM data store (and not "standard" AD datastore) solved the problem :D
I still wonder why since both plugins share the same java [implementing] class...
Regards,
Tony

How to track session in Webdynpro Java application

Hi All,
How to get the session reference of any Webdynpro Java Application . My purpose is that thr is one WD application is getting launched , now if suppose user didn't perform any action on it and session for that application got expired . After the session got expired i have to update the table with the status . So to track that i need the session reference of WD application which i m looking for .
How could i get the same . Kindly help me on this .
Thanks & Regards,
Mitul.

Hi ,
HttpSession session = request.getSession(false); //get the current session, if there is no session yet, return null
if (session == null) //forward to first page
else //do normal work
Then u can update ur session right ,
Regards ,
Venkat

"Accounting-Start" and "Accounting-Stop" with same "user name" and "session Id" recorded in different RADIUS servers.

Hi,
I have questions about "Accounting-Start" and "Accounting-Stop".
1.If a NAS configured to have a primary and a backup RADIUS server. To start with all the “Accounting-Start” records will be in the primary RADIUS server. Later on the primary server goes down (Primary server won’t tell the NAS?). When sessions stop, the NAS sends the “Accounting-Stop” to the secondary. I understand the “Start-Stop” record with the same “user name” and “session-id” ideally should be recorded in the same server. If this situation happens what should both the NAS and RADIUS server do?
2.A NAS configured to have a primary and backup RADIUS server. To start with all the “Accounting-Start” records will be in the primary RADIUS server. Later on the administrator decided to change the primary server (as there are problems with the previous primary). sessions stop, the NAS sends the “Accounting-Stop” to the new primary. This ends up the “Accounting-Start” and “Accounting-Stop” with the same “user name” and “session Id” in two RADIUS servers.
To summarize, how to avoid the ”start-stop” pair ends up in different servers ? If it does, is it an issue for RADIUS application ?
Cheers,
1.If a NAS configured to have a primary and a backup RADIUS server. To start with all the “Accounting-Start” records will be in the primary RADIUS server. Later on the primary server goes down (Primary server won’t tell the NAS?). When sessions stop, the NAS sends the “Accounting-Stop” to the secondary. I understand the “Start-Stop” record with the same “user name” and “session-id” ideally should be recorded in the same server. If this situation happens what should both the NAS and RADIUS server do?
2.A NAS configured to have a primary and backup RADIUS server. To start with all the “Accounting-Start” records will be in the primary RADIUS server. Later on the administrator decided to change the primary server (as there are problems with the previous primary). sessions stop, the NAS sends the “Accounting-Stop” to the new primary. This ends up the “Accounting-Start” and “Accounting-Stop” with the same “user name” and “session Id” in two RADIUS servers.
To summarize, how to avoid the ”start-stop” pair ends up in different servers ? If it does, is it an issue for RADIUS application ?
Cheers,

vignesh and BalusC,
following is the code in front controller's doFilter method. is this not thread safe?
        HttpServletRequest req = (HttpServletRequest) request;
        HttpServletResponse res = (HttpServletResponse) response;
        HttpSession session = req.getSession();
        somepackage.User user;
        if(session.getAttribute("user") == null){
            user = new somepackage.User();
            session.setAttribute("user", user);
        }else{
            user = (somepackage.User) session.getAttribute("user");
        }user object maintains all information about a user. if it is in session scope, everything should work fine.
another observation is after some time of usage, both people in different systems are getting same session.getId()
in my logout page i am using
session.invalidate();
thanks,
moses

Hi, I have quick question about use of USEBEAN tag in SP2. When I specify a scope of SESSION for the java bean, it does not keep the values that I set for variable in the bean persistent.Thanks,Sonny

Make sure that your bean is implementing the serializable interface and that
you are accessing the bean from the session with the same name.
Bryan
"Sandeep Suri" <[email protected]> wrote in message
news:[email protected]..
Hi, I have quick question about use of USEBEAN tag in SP2. When I
specify a scope of SESSION for the java bean, it does not keep the
values that I set for variable in the bean persistent.Thanks,Sonny
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Is there a way to put session.getAttribute() in a variable

Hi, title says it all.
I'm trying to put session.getAttribute("xxx") in an integer variable and it does not work.
int NoTech = Integer.parseInt(session.getAttribute("noTech"));
does not seems to work.
thanks, any help is appreciated :)

What is the type of "xxx"
Is it a String, and Integer, an Object?
session.getAttribute() returns an Object.
You need to cast that object to its proper type before you can use it.
It would complain about parseInt, because that expects a String as an argument not an Object.
If the attribute is an Integer object then:
int noTech = ((Integer)session.getAttribute("noTech")).intValue();
if the attribute is a String then:
int noTech = Integer.parseInt( (String)session.getAttribute("noTech"));
Cheers,
evnafets

Exception when connecting to Reporting and Analysis services from Java API

Hello,
I'm trying to connect to Hyperion Reporting and Analysis services from Java API using [Developer's guide|http://www.bidw.in/docs/hs_developer.pdf] .
I get this error:
com.sqribe.rm.ReportMartException: com/hyperion/css/CSSException
     at com.sqribe.rm.SessionImpl.convertError(Unknown Source)
     at com.sqribe.rm.AASessionImpl.open(Unknown Source)
     at com.sqribe.rm.AASessionImpl.internalInit(Unknown Source)
     at com.sqribe.rm.AASessionImpl.<init>(Unknown Source)
     at com.sqribe.rm.SessionFactory.getInstance(Unknown Source)
     ...My code:
String user = "user";
String pwd = "password";
String host = "my.hyperion.server";
int port = 6800;
try {
     Session theSession = SessionFactory.getInstance(user, pwd, host, port);
     Repository theRepository = theSession.getRepository();
} catch (UserValidationException e) {
     e.printStackTrace();
} catch (UnknownReportMartException e) {
     e.printStackTrace();
} catch (ReportMartException e) {
     e.printStackTrace();
}I have tried to look at my services running, and it all looks OK. I've checked user/passowrd/port for GSM. What can be wrong?
I also tried to run samples from \BIPlus\SDK\samples\java, e.g. Login.java:
#> java Login user password my.hyperion.server 6800with this effect
com.sqribe.rm.ReportMartException: SystemExceptionError
        at com.sqribe.rm.SessionImpl.convertError(Unknown Source)
        at com.sqribe.rm.AASessionImpl.open(Unknown Source)
        at com.sqribe.rm.AASessionImpl.internalInit(Unknown Source)
        at com.sqribe.rm.AASessionImpl.<init>(Unknown Source)
        at com.sqribe.rm.SessionFactory.getInstance(Unknown Source)
        at Login.<init>(Login.java:36)
        at Login.main(Login.java:69)I'm sure that I'm connecting to the server because when put wrong passowrd or user as input to Login class I get this:
com.sqribe.rm.ReportMartException: AUTHEN_CSSLoginFailed
        at com.sqribe.rm.SessionImpl.convertError(Unknown Source)
        at com.sqribe.rm.AASessionImpl.open(Unknown Source)
        at com.sqribe.rm.AASessionImpl.internalInit(Unknown Source)
        at com.sqribe.rm.AASessionImpl.<init>(Unknown Source)
        at com.sqribe.rm.SessionFactory.getInstance(Unknown Source)
        at Login.<init>(Login.java:36)
        at Login.main(Login.java:69)so it is there but something is wrong later. Any idea what?
Please help.
regards,
Pawel
Edited by: Paoro on 2010-09-27 02:02

HI,
I am getting the same error while running the Login file, Did any one resolve this issue?
Please share the solution.
Thanks.

Session tracking in java client app...*not jsp or servlets*

Does anyone know of a way to keep a property accessible throughout a user session in a Java app? I'm writing a Java native client app with Apache Axis to access remote .NET services (web services). The service issues a session ticket upon login to implement security...this ticket needs to be accessible to all objects in the client app. In addition, this ticket needs to be "renewed" every 10 minutes or so.
Any ideas on how to keep this ticket througout the session? And on how to update/renew every 10 minutes?
ANY help would be appreciated Still relatively new to java...

Hello.
I use the following scenario in my project.
User login to the web application then servlet keeps user data (IP-address, login name, etc) and creates a user ticket with the data. User ticket looks like a XML-element. After that I store the ticket to the Xindice DB.
http://xml.apache.org/xindice/
Xindice client API provides the useful methods for the ticket handling (read, update, delete).

Diferences between Business Delegate and Session Facade

Hi, I've been programming with java for a long time now, but recently decided to formally studing the J2EE patterns. By now I have the intuition of many of them but in paper looks a little confusing. Let me ask you what is a clear diference between Business Delegate and Session Facade.
For me, exposing interfaces, hiding implementations and masking the complex interactions in the back are common factors in these patterns, could you please help me to identify diferences?

There are more subtle differences, but the basic gyst is that the Business Delegate is used on the client/presentation tier. The Session Facade is used on the server/service tier. The Business Delegate typically performs a lookup of the SessionFacade which in turn fronts a service method (EJB or otherwise). The Business Delegate pattern is typically associated with J2EE remoting and its shortcomings.
- Saish

Session.getAttribute("somekey") returning NULL in SessionDestroyed

Hi all,
     session.getAttribute("somekey") is returning null in SessionDestroyed() method of flex listener.
Below are the steps I am following
1) I am adding flexLister in contextInitialized method of ServletContextListener
   FlexSession.addSessionCreateListener(myListener)
2) In sessionCreate method
     sessionCreated(FlexSession session) {
            session.addSessionDestroyListener(this)
3) some where in applicaion I am putting a key vlaue pair in session like this
FlexContext.getSession().setAttribute("somekey" , someVlue) ;
The issue is when I try to retreive vale from session
her is how I m retreiving value
   sessionDestroyed(FlexSession session) {
          session.getAttribute("somekey");     this return null WHY ?
This is always returning me null
Pls note that I am RTMP channel and version of LCDS is 2.6
I also tried RTMPFlexSession
RTMPFlexSession.addSessionCreateListener(myListener)
but no luck , still got null
Am I doing anything wrong ?
One more doubt, how to explicitly put data in RTMPFlexSeesion. FlexContex.getSession () always return HttpSession and I always hence I always end up putting attribute in unintended place.
Thanks ,
Dharmendra

Hi,
I really apologize for posting irrelevant question. I was not really aware of what do you mean by Lingo Director..
Thanks for suggestions and reply.
Regards,
Dharmendra

Autocasting and session.getAttribute() in Java 1.5

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