20 Jun
2008
20 Jun
'08
4:09 p.m.
Hi Thomas,
On Fri, Jun 20, 2008 at 2:15 PM, Thomas Mortagne <thomas.mortagne(a)xwiki.com>
wrote:
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Thomas Mortagne
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On Thu, Jun 19, 2008 at 6:48 PM, Asiri Rathnayake
<asiri.rathnayake(a)gmail.com> wrote:
How can i initialize the componentManager (to pass into above method) ?
Sorry about asking too much questions, kind of away from my build
environment, no way to test till tomorrow.
Thanks.
- Asiri
> Utils.getComponent("component") does not use the
> context's ComponentManager anymore to be able to get component
> whithout context.
>
> >
> > This worked fine untill recently. But I think now we have to handle this
Thanks, I will look into this.
On Thu, Jun 19, 2008 at 5:59 PM, Thomas Mortagne
<
thomas.mortagne(a)xwiki.com>
wrote:
> On Thu, Jun 19, 2008 at 12:56 PM, Asiri Rathnayake
> <asiri.rathnayake(a)gmail.com> wrote:
> > Hi Thomas and All,
> >
> > On Thu, Jun 19, 2008 at 2:16 AM, Thomas Mortagne <
> thomas.mortagne(a)xwiki.com>
> > wrote:
> >
> >> Asiri, is webdav servlet use Utils.prepareContext to create/prepare
> >> the context ? (the Utils's ComponentManager is initialized in it)
> >>
> >
> > Previously we used a small workaround for a problem we encountered
with
component manager as follows,
In Utils.prepareContext() method we had a problem where the component
manager is null ... so we did,
ComponentManager componentManager =
(ComponentManager)
engine_context.getAttribute(ComponentManager.class.getName());
+ if(null != componentManager) {
+ context.put(ComponentManager.class.getName(),
componentManager);
+ }
You also have to call static
Utils.setComponentManager(componentManager) to init Utils
ComponentManager. > > issue. The main problem is,
> >
> > ComponentManager componentManager =
> > (ComponentManager)
> > engine_context.getAttribute(ComponentManager.class.getName());
> >
> > Here, componentManager becomes null. What could be the reason for this
?
I look in sandbox this time and I think the problem is that
ComponentManager is not created and inserted in engine_context so
when prepareContext ask for it it get a null value and give it to
Utils. You should look in shared-test project
(/trunks/xwiki-platform-tools/xwiki-shared-tests/src/main/java/com/xpn/xwiki/test/AbstractXWikiComponentTestCase#getComponentManager())
to see how to create one. Then insert it in the "engine"
(XWikiServletContext here) argument before calling prepareContext.
I can do it directly in xwiki-webdav and commit in sandbox if you want.
That's great! Then i can start looking into webdav work straight away.
Anyway, I will have go through your code and understand it because learning
about xwiki-core is part of gsoc. Also, if we can fix this, i think we can
get rid of the additional patch (to core) required to test xwiki-webdav.
Thanks a lot.
- Asiri
> >
> > Thanks a lot.
> >
> > - Asiri
> >
> > PS : Previously vincent said not to use this workaround but we used it
> since
> > it worked.
> >
> >
> >>
> >> On Wed, Jun 18, 2008 at 10:43 PM, Thomas Mortagne
> >> <thomas.mortagne(a)xwiki.com> wrote:
> >> > ok, I think the problem is that when the first connection is webdav
> >> > ComponentManager is not initialized in Utils
> >> >
> >> > On Wed, Jun 18, 2008 at 10:28 PM, Thomas Mortagne
> >> > <thomas.mortagne(a)xwiki.com> wrote:
> >> >> Also I just fixed a build bug : cache was not built when building
> from
> >> /trunks
> >> >>
> >> >> On Wed, Jun 18, 2008 at 10:25 PM, Thomas Mortagne
> >> >> <thomas.mortagne(a)xwiki.com> wrote:
> >> >>> Hi,
> >> >>>
> >> >>> This error append when you try to use cache component before
> >> >>> ComponentManager initialization, it's not really related to
cache
> >> >>> itself.
> >> >>>
> >> >>> How do you reproduce this ? Is it in a unit test ? I don't
have
any
> >> >>> problem in virtual or
non virtual mode when using xwiki in
> standalone
> >> >>> or from Eclipse....
> >> >>>
> >> >>> On Wed, Jun 18, 2008 at 9:11 PM, Asiri Rathnayake
> >> >>> <asiri.rathnayake(a)gmail.com> wrote:
> >> >>>> Hi All,
> >> >>>>
> >> >>>> I cannot test xwiki-webdav anymore because XWikiCacheStore
throws a
> >> null
> >> >>>> pointer exception that i cannot figure out. I think this
is
> introduced
> >> by a
> >> >>>> recent commit, please help me with this. Following is the
> exception,
> >> >>>>
> >> >>>> <dump>
> >> >>>> java.lang.NullPointerException
> >> >>>> at
> >> >>>>
> com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:95)
> >> >>>> at
> >> >>>>
> com.xpn.xwiki.store.XWikiCacheStore.initCache(XWikiCacheStore.java:80)
> >> >>>> at
> >> >>>>
com.xpn.xwiki.store.XWikiCacheStore.<init>(XWikiCacheStore.java:62)
> >> >>>> at
com.xpn.xwiki.XWiki.initXWiki(XWiki.java:675)
> >> >>>> at com.xpn.xwiki.XWiki.<init>(XWiki.java:652)
> >> >>>> at com.xpn.xwiki.XWiki.getMainXWiki(XWiki.java:312)
> >> >>>> at com.xpn.xwiki.XWiki.getXWiki(XWiki.java:383)
> >> >>>> at
> >> >>>>
> >>
>
com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.getXWikiContext(XWikiDavResourceImpl.java:350)
> >> >>>> at
> >> >>>>
> >>
>
com.xpn.xwiki.plugin.webdav.XWikiDavResourceImpl.<init>(XWikiDavResourceImpl.java:205)
> >> >>>> at
> >> >>>>
> >>
>
com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:105)
> >> >>>> at
> >> >>>>
> >>
>
com.xpn.xwiki.plugin.webdav.XWikiResourceFactoryImpl.createResource(XWikiResourceFactoryImpl.java:69)
> >> >>>> at
> >> >>>>
> >>
>
com.xpn.xwiki.plugin.webdav.XWikiDavServlet.service(XWikiDavServlet.java:351)
> >> >>>> at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
> >> >>>> at
> >> >>>>
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
> >> >>>> at
> >> >>>>
> >>
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:363)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:219)
> >> >>>> at
> >> >>>>
> >>
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> >> >>>> at
> >> >>>>
> >>
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:738)
>> >> >>>> at
>> >> >>>>
>> org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:113)
> >> >>>> at
> >> >>>>
> >>
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
>> >> >>>> at
org.mortbay.jetty.Server.handle(Server.java:325)
> >> >>>> at
> >> >>>>
> >>
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:535)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:859)
>> >> >>>> at
>> org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
>> >> >>>> at
>> >> org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>> >> >>>> at
>> >> org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:391)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> >> >>>> at
> >> >>>>
> >>
>
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
> >>>> </dump>
> >>>>
> >>>> In XWikiCacheStore.initCache() method,
> >>>>
> >>>> CacheFactory cacheFactory = context.getWiki().getCacheFactory();
> >>>>
> >>>> here, cacheFactory has become null.
> >>>>
> >>>> I've only found this problem and currently looking into it, if
anyone
> can
> >>>> help me get over this quickly it would be a big help.
> >>>>
> >>>> Thanks.
> >>>>
> >>>> - Asiri
> >>>> _______________________________________________
> >>>> devs mailing list
> >>>> devs(a)xwiki.org
> >>>> http://lists.xwiki.org/mailman/listinfo/devs
> >>>>
> >>>
> >>>
> >>>
> >>> --
> >>> Thomas Mortagne
> >>>
> >>
> >>
> >>
> >> --
> >> Thomas Mortagne
> >>
> >
> >
> >
> > --
> > Thomas Mortagne
> >
>
>
>
> --
> Thomas Mortagne
> _______________________________________________
> devs mailing list
> devs(a)xwiki.org
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>
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--
Thomas Mortagne
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