/*
  Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.

  The MySQL Connector/J is licensed under the terms of the GPLv2
  <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, like most MySQL Connectors.
  There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
  this software, see the FOSS License Exception
  <http://www.mysql.com/about/legal/licensing/foss-exception.html>.

  This program is free software; you can redistribute it and/or modify it under the terms
  of the GNU General Public License as published by the Free Software Foundation; version 2
  of the License.

  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the GNU General Public License for more details.

  You should have received a copy of the GNU General Public License along with this
  program; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth
  Floor, Boston, MA 02110-1301  USA

 */

package com.mysql.jdbc;

import java.sql.SQLException;

public class NdbLoadBalanceExceptionChecker extends StandardLoadBalanceExceptionChecker {

    @Override
    public boolean shouldExceptionTriggerFailover(SQLException ex) {
        return super.shouldExceptionTriggerFailover(ex) || checkNdbException(ex);
    }

    private boolean checkNdbException(SQLException ex) {
        // Have to parse the message since most NDB errors are mapped to the same DEMC, sadly.
        return (ex.getMessage().startsWith("Lock wait timeout exceeded")
                || (ex.getMessage().startsWith("Got temporary error") && ex.getMessage().endsWith("from NDB")));
    }
}
