content: /*
   * Copyright (c) 2007, 2020, Oracle and/or its affiliates.
   *
   * This program is free software; you can redistribute it and/or modify it under
   * the terms of the GNU General Public License, version 2.0, as published by the
   * Free Software Foundation.
   *
   * This program is also distributed with certain software (including but not
   * limited to OpenSSL) that is licensed under separate terms, as designated in a
   * particular file or component or in included license documentation. The
   * authors of MySQL hereby grant you an additional permission to link the
   * program and your derivative works with the separately licensed software that
   * they have included with MySQL.
   *
   * Without limiting anything contained in the foregoing, this file, which is
   * part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
   * version 1.0, a copy of which can be found at
   * http://oss.oracle.com/licenses/universal-foss-exception.
   *
   * 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, version 2.0,
   * 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.cj.jdbc.ha;
  
  import java.sql.SQLException;
  
  import com.mysql.cj.Messages;
  import com.mysql.cj.exceptions.MysqlErrorNumbers;
  import com.mysql.cj.jdbc.exceptions.SQLError;
  
  public class LoadBalancedMySQLConnection extends MultiHostMySQLConnection implements LoadBalancedConnection {
      public LoadBalancedMySQLConnection(LoadBalancedConnectionProxy proxy) {
          super(proxy);
      }
  
      @Override
      public LoadBalancedConnectionProxy getThisAsProxy() {
          return (LoadBalancedConnectionProxy) super.getThisAsProxy();
      }
  
      @Override
      public void close() throws SQLException {
          getThisAsProxy().doClose();
      }
  
      @Override
      public void ping() throws SQLException {
          ping(true);
      }
  
      @Override
      public void ping(boolean allConnections) throws SQLException {
          if (allConnections) {
              getThisAsProxy().doPing();
          } else {
              getActiveMySQLConnection().ping();
          }
      }
  
      @Override
      public boolean addHost(String host) throws SQLException {
          return getThisAsProxy().addHost(host);
      }
  
      @Override
      public void removeHost(String host) throws SQLException {
          getThisAsProxy().removeHost(host);
      }
  
      @Override
      public void removeHostWhenNotInUse(String host) throws SQLException {
          getThisAsProxy().removeHostWhenNotInUse(host);
      }
  
      @Override
      public boolean isWrapperFor(Class<?> iface) throws SQLException {
          // This works for classes that aren't actually wrapping anything
          return iface.isInstance(this);
      }
  
      @Override
      public <T> T unwrap(java.lang.Class<T> iface) throws java.sql.SQLException {
          try {
              // This works for classes that aren't actually wrapping anything
              return iface.cast(this);
          } catch (ClassCastException cce) {
              throw SQLError.createSQLException(Messages.getString("Common.UnableToUnwrap", new Object[] { iface.toString() }),
                      MysqlErrorNumbers.SQL_STATE_ILLEGAL_ARGUMENT, getExceptionInterceptor());
          }
      }
  }
  