private Alarm getNext() {
Set<Alarm> alarmQueue =
new TreeSet<Alarm>(
new Comparator<Alarm>() {
@Override
public int compare(Alarm lhs, Alarm rhs) {
int result = 0;
long diff =
lhs.getAlarmTime().getTimeInMillis() - rhs.getAlarmTime().getTimeInMillis();
if (diff > 0) {
return 1;
} else if (diff < 0) {
return -1;
}
return result;
}
});
Database.init(getApplicationContext());
List<Alarm> alarms = Database.getAll();
for (Alarm alarm : alarms) {
if (alarm.getAlarmActive()) alarmQueue.add(alarm);
}
if (alarmQueue.iterator().hasNext()) {
return alarmQueue.iterator().next();
} else {
return null;
}
}
public static boolean init(String username, String password) {
Database.init("databases.aii.avans.nl", "miniproject7_db2", username, password);
Connection con = Database.getConnection();
return (con != null);
}
private Session createSession(ConnectionInfo ci, boolean ifExists) {
String name = ci.getDatabaseName();
name = Database.parseDatabaseShortName(ci.getDbSettings(), name);
Database database;
boolean openNew = ci.getProperty("OPEN_NEW", false);
if (openNew) {
database = null;
} else {
database = DATABASES.get(name);
}
User user = null;
boolean opened = false;
if (database == null) {
if (ifExists && !SystemDatabase.exists(name)) {
throw DbException.get(ErrorCode.DATABASE_NOT_FOUND_1, name);
}
database = createDatabase(ci.isPersistent());
database.init(ci, name);
opened = true;
if (database.getAllUsers().isEmpty()) {
// users is the last thing we add, so if no user is around,
// the database is new (or not initialized correctly)
user = new User(database, database.allocateObjectId(), ci.getUserName(), false);
user.setAdmin(true);
user.setUserPasswordHash(ci.getUserPasswordHash());
database.setMasterUser(user);
}
DATABASES.put(name, database);
if (database.isPersistent())
SystemDatabase.addDatabase(database.getShortName(), database.getStorageEngineName());
} else {
if (!database.isInitialized()) database.init(ci, name);
}
synchronized (database) {
if (opened) {
// start the thread when already synchronizing on the database
// otherwise a deadlock can occur when the writer thread
// opens a new database (as in recovery testing)
database.opened();
}
if (database.isClosing()) {
return null;
}
if (user == null) {
if (database.validateFilePasswordHash(
ci.getProperty("CIPHER", null), ci.getFilePasswordHash())) {
user = database.findUser(ci.getUserName());
if (user != null) {
if (!user.validateUserPasswordHash(ci.getUserPasswordHash())) {
user = null;
}
}
}
if (opened && (user == null || !user.isAdmin())) {
// reset - because the user is not an admin, and has no
// right to listen to exceptions
database.setEventListener(null);
}
}
if (user == null) {
database.removeSession(null);
throw DbException.get(ErrorCode.WRONG_USER_OR_PASSWORD);
}
Session session = database.createSession(user);
session.setConnectionInfo(ci);
return session;
}
}
