/**
* Establish a security advisor to allow the "embedded" azg work to occur with no need for
* additional security permissions.
*/
protected void enableSecurityAdvisorToGetAnnouncement() {
// put in a security advisor so we can do our podcast work without need
// of further permissions
securityService.pushAdvisor(
new SecurityAdvisor() {
public SecurityAdvice isAllowed(String userId, String function, String reference) {
if (function.equals(AnnouncementService.SECURE_ANNC_READ)
|| function.equals(ContentHostingService.AUTH_RESOURCE_READ)) // SAK-23300
return SecurityAdvice.ALLOWED;
else return SecurityAdvice.PASS;
}
});
}
public boolean updateScore(String submissionId) {
boolean saved = false;
SecurityAdvisor sa =
new SecurityAdvisor() {
public SecurityAdvice isAllowed(String userId, String function, String reference) {
if (AssignmentService.SECURE_GRADE_ASSIGNMENT_SUBMISSION.equals(function)
|| AssignmentService.SECURE_UPDATE_ASSIGNMENT.equals(function)
|| AssignmentService.SECURE_ACCESS_ASSIGNMENT.equals(function)
|| AssignmentService.SECURE_ACCESS_ASSIGNMENT_SUBMISSION.equals(function)) {
return SecurityAdvice.ALLOWED;
} else {
return SecurityAdvice.PASS;
}
}
};
try {
securityService.pushAdvisor(sa);
// first check that submission exists and that it can be graded/override score
AssignmentSubmission submission = assignmentService.getSubmission(submissionId);
// only override grades that have never been graded or was last graded by this service
// this prevents this service from overriding instructor set grades, which take precedent.
if (submission != null
&& (submission.getGraded() == false
|| submission.getGradedBy() == null
|| "".equals(submission.getGradedBy().trim())
|| AssignmentPeerAssessmentService.class
.getName()
.equals(submission.getGradedBy().trim()))) {
List<PeerAssessmentItem> items =
getPeerAssessmentItems(
submissionId, submission.getAssignment().getContent().getFactor());
if (items != null) {
// scores are stored w/o decimal points, so a score of 3.4 is stored as 34 in the DB
// add all the scores together and divide it by the number of scores added. Then round.
Integer totalScore = 0;
int denominator = 0;
for (PeerAssessmentItem item : items) {
if (!item.isRemoved() && item.getScore() != null) {
totalScore += item.getScore();
denominator++;
}
}
if (denominator > 0) {
totalScore = Math.round(totalScore / denominator);
} else {
totalScore = null;
}
String totleScoreStr = null;
if (totalScore != null) {
totleScoreStr = totalScore.toString();
}
boolean changed = false;
if ((totleScoreStr == null || "".equals(totleScoreStr))
&& (submission.getGrade() == null || "".equals(submission.getGrade()))) {
// scores are both null, nothing changed
} else if ((totleScoreStr != null && !"".equals(totleScoreStr))
&& (submission.getGrade() == null || "".equals(submission.getGrade()))) {
// one score changed, update
changed = true;
} else if ((totleScoreStr == null || "".equals(totleScoreStr))
&& (submission.getGrade() != null && !"".equals(submission.getGrade()))) {
// one score changed, update
changed = true;
} else if (!totleScoreStr.equals(submission.getGrade())) {
changed = true;
}
if (changed) {
AssignmentSubmissionEdit edit = assignmentService.editSubmission(submissionId);
edit.setGrade(totleScoreStr);
edit.setGraded(true);
edit.setGradedBy(AssignmentPeerAssessmentService.class.getName());
edit.setGradeReleased(false);
assignmentService.commitEdit(edit);
saved = true;
}
}
}
} catch (IdUnusedException e) {
log.error(e.getMessage(), e);
} catch (InUseException e) {
log.error(e.getMessage(), e);
} catch (PermissionException e) {
log.error(e.getMessage(), e);
} finally {
// remove advisor
if (sa != null) {
securityService.popAdvisor(sa);
}
}
return saved;
}