content: /*
   * Copyright (c) 2015, 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 java.util.Properties;
  import java.util.concurrent.Executor;
  
  import com.mysql.cj.Messages;
  import com.mysql.cj.exceptions.MysqlErrorNumbers;
  import com.mysql.cj.jdbc.JdbcConnection;
  import com.mysql.cj.jdbc.exceptions.SQLError;
  
  public class ReplicationMySQLConnection extends MultiHostMySQLConnection implements ReplicationConnection {
      public ReplicationMySQLConnection(MultiHostConnectionProxy proxy) {
          super(proxy);
      }
  
      @Override
      public ReplicationConnectionProxy getThisAsProxy() {
          return (ReplicationConnectionProxy) super.getThisAsProxy();
      }
  
      @Override
      public JdbcConnection getActiveMySQLConnection() {
          return getCurrentConnection();
      }
  
      @Override
      public synchronized JdbcConnection getCurrentConnection() {
          return getThisAsProxy().getCurrentConnection();
      }
  
      @Override
      public long getConnectionGroupId() {
          return getThisAsProxy().getConnectionGroupId();
      }
  
      @Override
      public synchronized JdbcConnection getSourceConnection() {
          return getThisAsProxy().getSourceConnection();
      }
  
      private JdbcConnection getValidatedSourceConnection() {
          JdbcConnection conn = getThisAsProxy().sourceConnection;
          try {
              return conn == null || conn.isClosed() ? null : conn;
          } catch (SQLException e) {
              return null;
          }
      }
  
      @Override
      public void promoteReplicaToSource(String host) throws SQLException {
          getThisAsProxy().promoteReplicaToSource(host);
      }
  
      @Override
      public void removeSourceHost(String host) throws SQLException {
          getThisAsProxy().removeSourceHost(host);
      }
  
      @Override
      public void removeSourceHost(String host, boolean waitUntilNotInUse) throws SQLException {
          getThisAsProxy().removeSourceHost(host, waitUntilNotInUse);
      }
  
      @Override
      public boolean isHostSource(String host) {
          return getThisAsProxy().isHostSource(host);
      }
  
      @Override
      public synchronized JdbcConnection getReplicaConnection() {
          return getThisAsProxy().getReplicasConnection();
      }
  
      private JdbcConnection getValidatedReplicasConnection() {
          JdbcConnection conn = getThisAsProxy().replicasConnection;
          try {
              return conn == null || conn.isClosed() ? null : conn;
          } catch (SQLException e) {
              return null;
          }
      }
  
      @Override
      public void addReplicaHost(String host) throws SQLException {
          getThisAsProxy().addReplicaHost(host);
      }
  
      @Override
      public void removeReplica(String host) throws SQLException {
          getThisAsProxy().removeReplica(host);
      }
  
      @Override
      public void removeReplica(String host, boolean closeGently) throws SQLException {
          getThisAsProxy().removeReplica(host, closeGently);
      }
  
      @Override
      public boolean isHostReplica(String host) {
          return getThisAsProxy().isHostReplica(host);
      }
  
      @Override
      public void setReadOnly(boolean readOnlyFlag) throws SQLException {
          getThisAsProxy().setReadOnly(readOnlyFlag);
      }
  
      @Override
      public boolean isReadOnly() throws SQLException {
          return getThisAsProxy().isReadOnly();
      }
  
      @Override
      public synchronized void ping() throws SQLException {
          JdbcConnection conn;
          try {
              if ((conn = getValidatedSourceConnection()) != null) {
                  conn.ping();
              }
          } catch (SQLException e) {
              if (isSourceConnection()) {
                  throw e;
              }
          }
          try {
              if ((conn = getValidatedReplicasConnection()) != null) {
                  conn.ping();
              }
          } catch (SQLException e) {
              if (!isSourceConnection()) {
                  throw e;
              }
          }
      }
  
      @Override
      public synchronized void changeUser(String userName, String newPassword) throws SQLException {
          JdbcConnection conn;
          if ((conn = getValidatedSourceConnection()) != null) {
              conn.changeUser(userName, newPassword);
          }
          if ((conn = getValidatedReplicasConnection()) != null) {
              conn.changeUser(userName, newPassword);
          }
      }
  
      @Override
      public synchronized void setStatementComment(String comment) {
          JdbcConnection conn;
          if ((conn = getValidatedSourceConnection()) != null) {
              conn.setStatementComment(comment);
          }
          if ((conn = getValidatedReplicasConnection()) != null) {
              conn.setStatementComment(comment);
          }
      }
  
      @Override
      public boolean hasSameProperties(JdbcConnection c) {
          JdbcConnection connM = getValidatedSourceConnection();
          JdbcConnection connS = getValidatedReplicasConnection();
          if (connM == null && connS == null) {
              return false;
          }
          return (connM == null || connM.hasSameProperties(c)) && (connS == null || connS.hasSameProperties(c));
      }
  
      @Override
      public Properties getProperties() {
          Properties props = new Properties();
          JdbcConnection conn;
          if ((conn = getValidatedSourceConnection()) != null) {
              props.putAll(conn.getProperties());
          }
          if ((conn = getValidatedReplicasConnection()) != null) {
              props.putAll(conn.getProperties());
          }
  
          return props;
      }
  
      @Override
      public void abort(Executor executor) throws SQLException {
          getThisAsProxy().doAbort(executor);
      }
  
      @Override
      public void abortInternal() throws SQLException {
          getThisAsProxy().doAbortInternal();
      }
  
      @Override
      public void setProxy(JdbcConnection proxy) {
          getThisAsProxy().setProxy(proxy);
      }
  
      @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());
          }
      }
  
      @Deprecated
      @Override
      public synchronized void clearHasTriedMaster() {
          getThisAsProxy().sourceConnection.clearHasTriedMaster();
          getThisAsProxy().replicasConnection.clearHasTriedMaster();
      }
  
  }
  