com.mysql.cj.jdbc.ha.ReplicationMySQLConnection Maven / Gradle / Ivy
/*
* 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 getMasterConnection() {
return getThisAsProxy().getMasterConnection();
}
private JdbcConnection getValidatedMasterConnection() {
JdbcConnection conn = getThisAsProxy().masterConnection;
try {
return conn == null || conn.isClosed() ? null : conn;
} catch (SQLException e) {
return null;
}
}
@Override
public void promoteSlaveToMaster(String host) throws SQLException {
getThisAsProxy().promoteSlaveToMaster(host);
}
@Override
public void removeMasterHost(String host) throws SQLException {
getThisAsProxy().removeMasterHost(host);
}
@Override
public void removeMasterHost(String host, boolean waitUntilNotInUse) throws SQLException {
getThisAsProxy().removeMasterHost(host, waitUntilNotInUse);
}
@Override
public boolean isHostMaster(String host) {
return getThisAsProxy().isHostMaster(host);
}
@Override
public synchronized JdbcConnection getSlavesConnection() {
return getThisAsProxy().getSlavesConnection();
}
private JdbcConnection getValidatedSlavesConnection() {
JdbcConnection conn = getThisAsProxy().slavesConnection;
try {
return conn == null || conn.isClosed() ? null : conn;
} catch (SQLException e) {
return null;
}
}
@Override
public void addSlaveHost(String host) throws SQLException {
getThisAsProxy().addSlaveHost(host);
}
@Override
public void removeSlave(String host) throws SQLException {
getThisAsProxy().removeSlave(host);
}
@Override
public void removeSlave(String host, boolean closeGently) throws SQLException {
getThisAsProxy().removeSlave(host, closeGently);
}
@Override
public boolean isHostSlave(String host) {
return getThisAsProxy().isHostSlave(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 = getValidatedMasterConnection()) != null) {
conn.ping();
}
} catch (SQLException e) {
if (isMasterConnection()) {
throw e;
}
}
try {
if ((conn = getValidatedSlavesConnection()) != null) {
conn.ping();
}
} catch (SQLException e) {
if (!isMasterConnection()) {
throw e;
}
}
}
@Override
public synchronized void changeUser(String userName, String newPassword) throws SQLException {
JdbcConnection conn;
if ((conn = getValidatedMasterConnection()) != null) {
conn.changeUser(userName, newPassword);
}
if ((conn = getValidatedSlavesConnection()) != null) {
conn.changeUser(userName, newPassword);
}
}
@Override
public synchronized void setStatementComment(String comment) {
JdbcConnection conn;
if ((conn = getValidatedMasterConnection()) != null) {
conn.setStatementComment(comment);
}
if ((conn = getValidatedSlavesConnection()) != null) {
conn.setStatementComment(comment);
}
}
@Override
public boolean hasSameProperties(JdbcConnection c) {
JdbcConnection connM = getValidatedMasterConnection();
JdbcConnection connS = getValidatedSlavesConnection();
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 = getValidatedMasterConnection()) != null) {
props.putAll(conn.getProperties());
}
if ((conn = getValidatedSlavesConnection()) != 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);
}
/*
* public void setProxy(JdbcConnection proxy) {
* this.proxy = proxy;
* if (this.masterConnection != null) {
* this.masterConnection.setProxy(proxy);
* }
* if (this.slavesConnection != null) {
* this.slavesConnection.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 unwrap(java.lang.Class 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().masterConnection.clearHasTriedMaster();
getThisAsProxy().slavesConnection.clearHasTriedMaster();
}
}