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/*
* 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;
import java.net.SocketAddress;
import com.mysql.cj.conf.HostInfo;
import com.mysql.cj.conf.PropertyKey;
import com.mysql.cj.conf.PropertySet;
import com.mysql.cj.conf.RuntimeProperty;
import com.mysql.cj.exceptions.CJOperationNotSupportedException;
import com.mysql.cj.exceptions.ExceptionFactory;
import com.mysql.cj.exceptions.ExceptionInterceptor;
import com.mysql.cj.log.Log;
import com.mysql.cj.log.LogFactory;
import com.mysql.cj.log.NullLogger;
import com.mysql.cj.log.ProfilerEventHandler;
import com.mysql.cj.protocol.Message;
import com.mysql.cj.protocol.Protocol;
import com.mysql.cj.protocol.ServerSession;
import com.mysql.cj.util.Util;
public abstract class CoreSession implements Session {
protected PropertySet propertySet;
protected ExceptionInterceptor exceptionInterceptor;
/** The logger we're going to use */
protected transient Log log;
/** Null logger shared by all connections at startup */
protected static final Log NULL_LOGGER = new NullLogger(Log.LOGGER_INSTANCE_NAME);
protected transient Protocol protocol;
protected MessageBuilder messageBuilder;
/** The point in time when this connection was created */
protected long connectionCreationTimeMillis = 0;
protected HostInfo hostInfo = null;
protected RuntimeProperty gatherPerfMetrics;
protected RuntimeProperty characterEncoding;
protected RuntimeProperty disconnectOnExpiredPasswords;
protected RuntimeProperty cacheServerConfiguration;
protected RuntimeProperty autoReconnect;
protected RuntimeProperty autoReconnectForPools;
protected RuntimeProperty maintainTimeStats;
/** The max-rows setting for current session */
protected int sessionMaxRows = -1;
/** The event sink to use for profiling */
private ProfilerEventHandler eventSink;
public CoreSession(HostInfo hostInfo, PropertySet propSet) {
this.connectionCreationTimeMillis = System.currentTimeMillis();
this.hostInfo = hostInfo;
this.propertySet = propSet;
this.gatherPerfMetrics = getPropertySet().getBooleanProperty(PropertyKey.gatherPerfMetrics);
this.characterEncoding = getPropertySet().getStringProperty(PropertyKey.characterEncoding);
this.disconnectOnExpiredPasswords = getPropertySet().getBooleanProperty(PropertyKey.disconnectOnExpiredPasswords);
this.cacheServerConfiguration = getPropertySet().getBooleanProperty(PropertyKey.cacheServerConfiguration);
this.autoReconnect = getPropertySet().getBooleanProperty(PropertyKey.autoReconnect);
this.autoReconnectForPools = getPropertySet().getBooleanProperty(PropertyKey.autoReconnectForPools);
this.maintainTimeStats = getPropertySet().getBooleanProperty(PropertyKey.maintainTimeStats);
this.log = LogFactory.getLogger(getPropertySet().getStringProperty(PropertyKey.logger).getStringValue(), Log.LOGGER_INSTANCE_NAME);
}
@Override
public void changeUser(String user, String password, String database) {
// reset maxRows to default value
this.sessionMaxRows = -1;
this.protocol.changeUser(user, password, database);
}
@Override
public PropertySet getPropertySet() {
return this.propertySet;
}
@Override
public ExceptionInterceptor getExceptionInterceptor() {
return this.exceptionInterceptor;
}
@Override
public void setExceptionInterceptor(ExceptionInterceptor exceptionInterceptor) {
this.exceptionInterceptor = exceptionInterceptor;
}
@Override
public Log getLog() {
return this.log;
}
public HostInfo getHostInfo() {
return this.hostInfo;
}
@SuppressWarnings("unchecked")
@Override
public MessageBuilder getMessageBuilder() {
return (MessageBuilder) this.messageBuilder;
}
@Override
public ServerSession getServerSession() {
return this.protocol.getServerSession();
}
@Override
public boolean versionMeetsMinimum(int major, int minor, int subminor) {
return this.protocol.versionMeetsMinimum(major, minor, subminor);
}
@Override
public long getThreadId() {
return this.protocol.getServerSession().getThreadId();
}
@Override
public void quit() {
if (this.eventSink != null) {
this.eventSink.destroy();
this.eventSink = null;
}
}
@Override
public void forceClose() {
if (this.eventSink != null) {
this.eventSink.destroy();
this.eventSink = null;
}
}
public boolean isSetNeededForAutoCommitMode(boolean autoCommitFlag) {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public ProfilerEventHandler getProfilerEventHandler() {
if (this.eventSink == null) {
synchronized (this) {
if (this.eventSink == null) { // check again to ensure that other thread didn't set it already
this.eventSink = (ProfilerEventHandler) Util.getInstance(
this.propertySet.getStringProperty(PropertyKey.profilerEventHandler).getStringValue(), new Class[0], new Object[0],
this.exceptionInterceptor);
this.eventSink.init(this.log);
}
}
}
return this.eventSink;
}
@Override
public boolean isSSLEstablished() {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public SocketAddress getRemoteSocketAddress() {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public void addListener(SessionEventListener l) {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public void removeListener(SessionEventListener l) {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public String getIdentifierQuoteString() {
throw ExceptionFactory.createException(CJOperationNotSupportedException.class, "Not supported");
}
@Override
public DataStoreMetadata getDataStoreMetadata() {
return new DataStoreMetadataImpl(this);
}
@Override
public String getQueryTimingUnits() {
return this.protocol.getQueryTimingUnits();
}
}
