@Override
public final void createOrUpdateUserAccount(final UserAccount userAccount) {
if (userAccount == null) {
throw new IllegalArgumentException("The passed user account was null.");
}
final Mutator mutator = connectionPool.createMutator();
final String uuid = UUID.randomUUID().toString();
final String username = userAccount.getUsername();
final String password = userAccount.getPassword();
// first we register the user user account under a new uuid
mutator.writeColumns(
COLUMN_FAMILY_USER,
uuid,
mutator.newColumnList(
mutator.newColumn("username", username), mutator.newColumn("password", password)));
// then we update the inverted index for the uuid
mutator.writeColumns(
COLUMN_FAMILY_USERNAME, username, mutator.newColumnList(mutator.newColumn("userid", uuid)));
// finally commit both updates
mutator.execute(CONSISTENCY_LEVEL_WRITE);
userAccount.setId(uuid);
}
@Override
public final boolean deleteUserAccount(final UserAccount userAccount) {
if (userAccount == null) {
throw new IllegalArgumentException("The passed user account was null.");
}
final RowDeletor deletor = connectionPool.createRowDeletor();
final String userid = userAccount.getId();
final String username = userAccount.getUsername();
deletor.deleteRow(COLUMN_FAMILY_USER, userid, CONSISTENCY_LEVEL_WRITE);
deletor.deleteRow(COLUMN_FAMILY_USERNAME, username, CONSISTENCY_LEVEL_WRITE);
return true;
}
@Override
public final UserAccount findUserAccountByUsername(final String username) {
if (username == null) {
throw new IllegalArgumentException("The passed username was null.");
}
final Selector selector = connectionPool.createSelector();
final List<Column> columns =
selector.getColumnsFromRow(COLUMN_FAMILY_USERNAME, username, false, CONSISTENCY_LEVEL_READ);
if (!columns.isEmpty()) {
final String userid = Selector.getColumnStringValue(columns, "userid");
return findUserAccountByPrimaryKey(userid);
}
return null;
}