public static Assignment addHint(Assignment assignment, Hint hint) {
assignment.setHints(
Stream.concat(assignment.getHints().stream(), Stream.of(hint)).collect(toList()));
return assignment;
}
/**
* Creates an Assignment object from a request, returns null if correct parameters not present or
* empty
*
* @param request
* @return
*/
public static Optional<Assignment> createAssignment(HttpServletRequest request) {
String artifact = request.getParameter("artifact");
String name = request.getParameter("name");
String participantDescription = request.getParameter("participantDescription");
String spectatorDescription = request.getParameter("spectatorDescription");
String creatorName = request.getParameter("creatorName");
String creatorOrganisation = request.getParameter("creatorOrganisation");
String creatorLink = request.getParameter("creatorLink");
Optional<Assignment> assignmentOpt = Optional.empty();
try {
if (!(artifact.isEmpty()
|| name.isEmpty()
|| participantDescription.isEmpty()
|| spectatorDescription.isEmpty()
|| creatorName.isEmpty()
|| creatorOrganisation.isEmpty()
|| creatorLink.isEmpty())) {
Assignment assignment = new Assignment();
assignment.setArtifact(artifact);
assignment.setName(name);
assignment.setParticipantDescription(participantDescription);
assignment.setSpectatorDescription(spectatorDescription);
assignment.setCreatorName(creatorName);
assignment.setCreatorOrganisation(creatorOrganisation);
assignment.setCreatorLink(creatorLink);
assignmentOpt = Optional.of(assignment);
}
} catch (NullPointerException ex) {
// parameter not available
}
return assignmentOpt;
}