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JDBC Type 4 driver for MySQL
/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
*
* 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.result;
import java.sql.Date;
import java.util.Calendar;
import java.util.Locale;
import java.util.TimeZone;
import com.mysql.cj.Messages;
import com.mysql.cj.WarningListener;
import com.mysql.cj.exceptions.DataReadException;
/**
* A value factory for creating {@link java.sql.Date} values.
*/
public class SqlDateValueFactory extends DefaultValueFactory {
private TimeZone tz;
private WarningListener warningListener;
// cached per instance to avoid re-creation on every create*() call
private Calendar cal;
public SqlDateValueFactory(TimeZone tz) {
this.tz = tz;
// c.f. Bug#11540 for details on locale
this.cal = Calendar.getInstance(this.tz, Locale.US);
this.cal.set(Calendar.MILLISECOND, 0);
this.cal.setLenient(false);
}
public SqlDateValueFactory(TimeZone tz, WarningListener warningListener) {
this(tz);
this.warningListener = warningListener;
}
@Override
public Date createFromDate(int year, int month, int day) {
synchronized (this.cal) {
if (year == 0 && month == 0 && day == 0) {
throw new DataReadException(Messages.getString("ResultSet.InvalidZeroDate"));
}
this.cal.clear();
this.cal.set(year, month - 1, day);
long ms = this.cal.getTimeInMillis();
return new Date(ms);
}
}
@Override
public Date createFromTime(int hours, int minutes, int seconds, int nanos) {
if (this.warningListener != null) {
// TODO: need column context
this.warningListener.warningEncountered(Messages.getString("ResultSet.ImplicitDatePartWarning", new Object[] { "java.sql.Date" }));
}
synchronized (this.cal) {
// c.f. java.sql.Time "The date components should be set to the "zero epoch" value of January 1, 1970 GMT and should not be accessed."
// A new Calendar instance is used to don't spoil the date part of the default one.
Calendar c1 = Calendar.getInstance(TimeZone.getTimeZone("UTC"), Locale.US);
c1.set(1970, 0, 1, hours, minutes, seconds);
c1.set(Calendar.MILLISECOND, 0);
long ms = (nanos / 1000000) + c1.getTimeInMillis();
return new Date(ms);
}
}
@Override
public Date createFromTimestamp(int year, int month, int day, int hours, int minutes, int seconds, int nanos) {
if (this.warningListener != null) {
// TODO: need column context
this.warningListener.warningEncountered(Messages.getString("ResultSet.PrecisionLostWarning", new Object[] { "java.sql.Date" }));
}
// truncate any time information
return createFromDate(year, month, day);
}
public String getTargetTypeName() {
return Date.class.getName();
}
}