protected void changeTutorial(Parameters params, Map sitemapParams) throws ProcessingException {
final String METHOD_NAME = "changeTutorial";
this.getLogger().debug(METHOD_NAME + " 1/2: Started");
DbHelper dbHelper = null;
try {
// Init services:
dbHelper = (DbHelper) this.manager.lookup(DbHelper.ROLE);
// Get data from parameters:
int userId = ParamUtil.getAsInt(params, "user");
int classId = ParamUtil.getAsId(params, "class");
int oldTutorialId = ParamUtil.getAsInt(params, "old-tutorial");
int newTutorialId = ParamUtil.getAsInt(params, "new-tutorial");
// Both tutorials must belong to the specified class:
int oldTutorialClassId =
dbHelper.getPseudoDocDatumAsInt(PseudoDocType.TUTORIAL, oldTutorialId, DbColumn.CLASS);
int newTutorialClassId =
dbHelper.getPseudoDocDatumAsInt(PseudoDocType.TUTORIAL, newTutorialId, DbColumn.CLASS);
if (oldTutorialClassId != classId)
throw new IllegalArgumentException("Old tutorial does not belong to the specified class");
if (newTutorialClassId != classId)
throw new IllegalArgumentException("New tutorial does not belong to the specified class");
dbHelper.beginTransaction(this, true);
// Remove user from old tutorial:
dbHelper.removeTutorialMember(oldTutorialId, userId);
// Add user to new tutorial:
dbHelper.addTutorialMember(newTutorialId, userId);
dbHelper.endTransaction(this);
this.getLogger().debug(METHOD_NAME + " 2/2: Done");
} catch (Exception exception) {
throw new ProcessingException(exception);
} finally {
if (dbHelper != null)
try {
if (dbHelper.hasTransactionLocked(this)) dbHelper.abortTransaction(this);
} catch (Exception exception) {
throw new ProcessingException(exception);
} finally {
this.manager.release(dbHelper);
}
}
}
/** See class description. */
public Map act(
Redirector redirector,
SourceResolver resolver,
Map objectModel,
String source,
Parameters parameters)
throws ProcessingException {
final String METHOD_NAME = "act";
this.getLogger().debug(METHOD_NAME + " 1/2: Started");
try {
// Init sitemap parameters to return:
Map sitemapParams = new HashMap();
int formStage = ParamUtil.getAsInt(parameters, "form-stage", 0);
sitemapParams.put("form-stage", formStage);
switch (formStage) {
case 0:
// Do nothing, only inform sitemap to generate form and set the user:
int userId = ParamUtil.getAsInt(parameters, "id", -1);
sitemapParams.put("mode", "form");
sitemapParams.put("user", Integer.toString(userId));
break;
case 1:
// Change tutorial:
this.changeTutorial(parameters, sitemapParams);
break;
default:
throw new IllegalArgumentException("Illegal form-stage value: " + formStage);
}
this.getLogger().debug(METHOD_NAME + " 2/2: Done");
return sitemapParams;
} catch (Exception exception) {
throw new ProcessingException(exception);
}
}
public Map act(
Redirector redirector,
SourceResolver sourceResolver,
Map objectModel,
String source,
Parameters parameters)
throws ProcessingException {
final String METHOD_NAME = "act";
this.getLogger().debug(METHOD_NAME + " 1/2: Started");
UserWorksheetGradeMessage message = null;
try {
// Get data:
int userId = ParamUtil.getAsId(parameters, "user");
int worksheetId = ParamUtil.getAsId(parameters, "worksheet");
String destinationName = ParamUtil.getAsString(parameters, "destination");
// Setup message object:
message = (UserWorksheetGradeMessage) this.manager.lookup(UserWorksheetGradeMessage.ROLE);
message.setup(userId, worksheetId, destinationName);
// Send message:
boolean success = message.send();
// Compose sitemap parameters:
Map sitemapParams = new HashMap();
sitemapParams.put("message-status", (success ? "Ok" : "Failed"));
this.getLogger().debug(METHOD_NAME + " 2/2: Done. success = " + success);
return sitemapParams;
} catch (Exception exception) {
throw new ProcessingException(exception);
} finally {
if (message != null) this.manager.release(message);
}
}