[Building Sakai] Use of GradebookService as a web service
Shoji Kajita
kajita at nagoya-u.jp
Wed May 30 03:00:15 PDT 2012
Hi Steve,
Thank you for your detailed analysis.
After setting the proper role (gradebook.gradeAll) as you suggested, I
have faced another similar exception:
java.lang.SecurityException : User d14275f2-bd9b-4b9d-99e1-91869bfc1fc1 attempted to access grade information for student student0162 without permission in gb 0279a90b-61ab-4b58-86ce-70e4ef937906 using gradebookService.getGradesForStudentsForItem
As far as I digged by remote debugging using eclipse, the above
exception is caused because studentIdEnrRecMap() is null at
http://source.sakaiproject.org/release/edu-services/1.1.5/xref/org/sakaiproject/component/gradebook/GradebookServiceHibernateImpl.html#1575
and this null is caused because enrRecFunctionMap() is also null at
http://source.sakaiproject.org/release/edu-services/1.1.5/xref/org/sakaiproject/component/gradebook/GradebookServiceHibernateImpl.html#1560
... I need to trace more but do you have any suggestions at this moment?
Shoji
At Wed, 23 May 2012 08:06:37 +1000,
Steve Swinsburg wrote:
>
> It works via the permission I sent earlier. So tick that in the role for the realm and you should be set.
>
> I'm not near a computer but it would be good to verify the permissions for grade book in the default project site realm roles. I use the grade book in project sites.
>
> Cheers
> Steve
>
> Sent from my iPhone
>
> On 23/05/2012, at 0:59, Shoji Kajita <kajita at nagoya-u.jp> wrote:
>
> > Hi there,
> >
> > Thank you for your suggestions.
> >
> > I think that Aaron is getting the point, i.e., the worksite I'm using
> > is a project site, not a course site.
> >
> > So, I think that isUserAbleToGrade should be true even if in Maintain
> > Role to reduce this kind of confusion.
> >
> > Shoji at Kyoto (not Nagoya)
> >
> > At Mon, 21 May 2012 10:50:43 -0400,
> > Aaron Zeckoski wrote:
> >>
> >> Yeah, that should probably check a permission like site.upd or
> >> section.role.instructor or something to that effect. Checking the role
> >> directly is definitely not the way to go.
> >>
> >> -AZ
> >>
> >>
> >> On Mon, May 21, 2012 at 10:42 AM, David Horwitz <david.horwitz at uct.ac.za> wrote:
> >>> Also assuming that Role.INSTRUCTOR is "Instructor" this fails on systems
> >>> that use other role names (for localisation or i18n)
> >>>
> >>> D
> >>>
> >>>
> >>> On 05/21/2012 04:32 PM, Matthew Jones wrote:
> >>>
> >>> Hmm,
> >>>
> >>> It's possible that could be a bug, try it in a course site with an
> >>> instructor.
> >>>
> >>> It looks like the call for isUserAbleToGrade checks specific INSTRUCTOR and
> >>> QA roles, so might not work in a project site. It should probably check
> >>> against the specific maintain role defined on the site as well.
> >>>
> >>> public boolean isUserAbleToGrade(String gradebookUid, String userUid) {
> >>> return (getSectionAwareness().isSiteMemberInRole(gradebookUid,
> >>> userUid, Role.INSTRUCTOR) ||
> >>> getSectionAwareness().isSiteMemberInRole(gradebookUid, userUid, Role.TA));
> >>> }
> >>>
> >>> Otherwise verify that in that realm that user has all permissions to grade.
> >>> This looks suspicious though.
> >>>
> >>> On Mon, May 21, 2012 at 7:16 AM, Shoji Kajita <kajita at nagoya-u.jp> wrote:
> >>>>
> >>>> Hi Chuck and Matthew,
> >>>>
> >>>> Thank you for your advices.
> >>>>
> >>>> I'm now taking a look on these pointers and getting close to
> >>>> work. However, I'm still getting the following exception:
> >>>>
> >>>> java.lang.SecurityException : User shoji attempted to access grade
> >>>> information for student kajita without permission in gb
> >>>> 8e328a23-c343-40cc-bcb0-547553b9cd46 using
> >>>> gradebookService.getGradesForStudentsForItem
> >>>>
> >>>> As far as I see, "shoji" has the permission to grade because he has the
> >>>> maintain role.
> >>>>
> >>>> Any thoughts?
> >>>>
> >>>> Best regards,
> >>>> Shoji
> >>>>
> >>>> At Sun, 20 May 2012 12:59:33 -0400,
> >>>> Charles Severance wrote:
> >>>>>
> >>>>> [1 <text/plain; us-ascii (quoted-printable)>]
> >>>>> Shoji,
> >>>>>
> >>>>> If you look here
> >>>>>
> >>>>>
> >>>>> https://source.sakaiproject.org/svn//basiclti/trunk/basiclti-blis/src/java/org/sakaiproject/blti/ServiceServlet.java
> >>>>>
> >>>>> You will find some simple calls to the gradebook service to set grades.
> >>>>>
> >>>>> Here
> >>>>>
> >>>>>
> >>>>> https://source.sakaiproject.org/svn//basiclti/trunk/basiclti-portlet/src/java/org/sakaiproject/portlets/IMSBLTIPortlet.java
> >>>>>
> >>>>> It makes gradebook items.
> >>>>>
> >>>>> I borrowed the code from the Assignments tool/
> >>>>>
> >>>>> /Chuck
> >>>>>
> >>>>
> >>>> At Sat, 19 May 2012 23:50:30 -0400,
> >>>> Matthew Jones wrote:
> >>>>>
> >>>>> Hi Shoji!
> >>>>>
> >>>>> This probably just looks like a confusing special case. You have to use
> >>>>> component manager to get the beans from the spring components, then cast
> >>>>> it
> >>>>> to the interfaces (apis) that are in shared.
> >>>>>
> >>>>> For gradebook, they're probably just named differently, for whatever
> >>>>> reason.
> >>>>>
> >>>>> Look at this webservice for some example gradebook code for getting
> >>>>> gradebooks and grades. Hopefully you can use this for whatever you need.
> >>>>>
> >>>>> https://source.sakaiproject.org/svn/msub/longsight.com/webservices/webservices-1.0.x/axis/src/webapp/WSLongsight.jws
> >>>>>
> >>>>>
> >>>>> And I think this one on confluence still works too?
> >>>>>
> >>>>> https://confluence.sakaiproject.org/display/~steve.swinsburg/Additional+web+services+for+Sakai#AdditionalwebservicesforSakai-SakaiGradebook
> >>>>>
> >>>>> -Matthew
> >>>>>
> >>>>> On Sat, May 19, 2012 at 10:13 PM, Shoji Kajita <kajita at nagoya-u.jp>
> >>>>> wrote:
> >>>>>
> >>>>>> Dear Sakai Developers,
> >>>>>>
> >>>>>> I'm trying to develop a new web service for getting information from
> >>>>>> Gradebook, but I have been struggling from using GradebookService.
> >>>>>>
> >>>>>> For example, I can call
> >>>>>>
> >>>>>> gradebookService.isGradebookDefined
> >>>>>>
> >>>>>> successfully when I use
> >>>>>>
> >>>>>> gradebookService = (GradebookService)
> >>>>>>
> >>>>>> ComponentManager.get("org.sakaiproject.service.gradebook.GradebookService");
> >>>>>>
> >>>>>> as seen in the following simple code. But, it is failed when I use
> >>>>>>
> >>>>>> gradebookService = (GradebookService)
> >>>>>>
> >>>>>> ComponentManager.get("org.sakaiproject.service.gradebook.shared.GradebookService");
> >>>>>>
> >>>>>> in line 31. I'm probably misunderstanding something.
> >>>>>>
> >>>>>> I really appreciate if someone gives me any pointer to address this.
> >>>>>>
> >>>>>> Best regards,
> >>>>>> Shoji Kajita
> >>>>>> Kyoto University
> >>>>>> ----
> >>>>>> 01: import org.apache.axis.AxisFault;
> >>>>>> 02: import org.apache.commons.logging.Log;
> >>>>>> 03: import org.apache.commons.logging.LogFactory;
> >>>>>> 04: import org.sakaiproject.service.gradebook.shared.GradebookService;
> >>>>>> 05: import org.sakaiproject.tool.api.Session;
> >>>>>> 06: import org.sakaiproject.tool.api.SessionManager;
> >>>>>> 07: import org.sakaiproject.component.cover.ComponentManager;
> >>>>>> 08:
> >>>>>> 09: public class CourseGradebook {
> >>>>>> 10:
> >>>>>> 11: private GradebookService gradebookService;
> >>>>>> 12: private SessionManager sessionManager;
> >>>>>> 13:
> >>>>>> 14: private static Log LOG =
> >>>>>> LogFactory.getLog(CourseGradebook.class);
> >>>>>> 15:
> >>>>>> 16: private Session establishSession(String sessionId) throws
> >>>>>> AxisFault
> >>>>>> 17: {
> >>>>>> 18: Session s = sessionManager.getSession(sessionId);
> >>>>>> 19:
> >>>>>> 20: if (s == null)
> >>>>>> 21: {
> >>>>>> 22: throw new AxisFault("Session \""+sessionId+"\"
> >>>>>> is
> >>>>>> not active");
> >>>>>> 23: }
> >>>>>> 24: s.setActive();
> >>>>>> 25: sessionManager.setCurrentSession(s);
> >>>>>> 26: return s;
> >>>>>> 27: }
> >>>>>> 28:
> >>>>>> 29: public CourseGradebook() {
> >>>>>> 30: // gradebookService = (GradebookService)
> >>>>>> ComponentManager.get(GradebookService.class.getName());
> >>>>>> 31: gradebookService = (GradebookService)
> >>>>>>
> >>>>>> ComponentManager.get("org.sakaiproject.service.gradebook.shared.GradebookService");
> >>>>>> 32: // gradebookService = (GradebookService)
> >>>>>>
> >>>>>> ComponentManager.get("org.sakaiproject.service.gradebook.GradebookService");
> >>>>>> 33: sessionManager = (SessionManager)
> >>>>>> ComponentManager.get(SessionManager.class.getName());
> >>>>>> 34: }
> >>>>>> 35:
> >>>>>> 36: public String getCompletedDate(String sessionId, String
> >>>>>> siteId)
> >>>>>> throws AxisFault {
> >>>>>> 37:
> >>>>>> 38: Session session = establishSession(sessionId);
> >>>>>> 39:
> >>>>>> 40: String gbID = siteId;
> >>>>>> 41: if (!gradebookService.isGradebookDefined(gbID)) {
> >>>>>> 42: System.out.println("Debug: Not found.");
> >>>>>> 43: return "No gradebook found for this site.";
> >>>>>> 44: }
> >>>>>> 45: return "Gradebook found for this site.";
> >>>>>> 46: }
> >>>>>> 47:
> >>>>>> 48: }
> >>>>>> -----
> >>>>>> _______________________________________________
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> >>>>>>
> >>>
> >>>
> >>>
> >>>
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> >>
> >>
> >>
> >> --
> >> Aaron Zeckoski - Software Architect - http://tinyurl.com/azprofile
> >> _______________________________________________
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> >>
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