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Posted to users@cocoon.apache.org by Hugo Burm <hu...@xs4all.nl> on 2002/07/04 07:41:58 UTC
Accessing SunShine context from Java Action
Hello,
Thanks to Carsten Ziegeler, my SunShine autorization and context is working
fine now.
Now I want to access the SunShine context from my own Java handler (an
Action).
I looked into the SunShine sources and tried to call the most simpe call
(check whether a SunShine context exists)
Something like this:
import org.apache.cocoon.sunshine.*;
[...]
SunShine sSun = new SunShine();
boolean bSun = sSun.existsContext("survey");
[...]
This gives me the exception listed below.
I noticed that the page that triggered the action, has no more a
jsessionid=ABCDXYZ in the URL. So, may be, I lost my Java session. But I
have no idea how the SunShine context is propagated between different pages.
Can someone comment on how the SunShine context is stored and can be
accessed? And what is needed to access it 10 pages later in my (browser)
session?
Hugo Burm
hugob@xs4all.nl
==============
Original exception : java.lang.NullPointerException
at org.apache.cocoon.sunshine.SunShine.getSession(SunShine.java:358)
at org.apache.cocoon.sunshine.SunShine.existsContext(SunShine.java:999)
at
nl.datagram.cocoon.acting.SurveyDBSelectAction.act(SurveyDBSelectAction.java
:89)
at
org.apache.cocoon.components.treeprocessor.sitemap.ActionSetNode.call(Action
SetNode.java:165)
[ long dump of stack truncated ]
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RE: Accessing SunShine context from Java Action
Posted by Carsten Ziegeler <cz...@s-und-n.de>.
Hugo Burm wrote:
>
> Hello,
>
> Thanks to Carsten Ziegeler, my SunShine autorization and context
> is working
> fine now.
> Now I want to access the SunShine context from my own Java handler (an
> Action).
>
> I looked into the SunShine sources and tried to call the most simpe call
> (check whether a SunShine context exists)
> Something like this:
>
> import org.apache.cocoon.sunshine.*;
> [...]
> SunShine sSun = new SunShine();
> boolean bSun = sSun.existsContext("survey");
> [...]
>
SunShine is an Avalon component, you can't instantiate it directly, but
you have to lookup it using a component manager. If your action inherits
from ComposableAction you already have a component manager.
Then you can lookup the SunShine component:
SunShine sSun = this.manager.lookup(SunShine.ROLE);
and use it. But don't forget to release it, when you are finished.
> This gives me the exception listed below.
> I noticed that the page that triggered the action, has no more a
> jsessionid=ABCDXYZ in the URL. So, may be, I lost my Java session. But I
> have no idea how the SunShine context is propagated between
> different pages.
> Can someone comment on how the SunShine context is stored and can be
> accessed? And what is needed to access it 10 pages later in my (browser)
> session?
>
The contexts are stored in the session, so as long the user has the session,
the context is available. If your servlet engine uses cookies and your
browser accepts cookies, then the jsessionid in the URL will disappear.
If cookies aren't used, the jsessionid must be appended to each URI,
you can use the encodeURL transformer in Cocoon to do so.
HTH
Carsten
Carsten Ziegeler Chief Architect Open Source Group, S&N AG
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