[Building Sakai] Use of GradebookService as a web service

[Shoji Kajita]

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
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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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