/*
* Copyright (c) 2019, 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 com.mysql.cj.
Messages;
import com.mysql.cj.conf.
PropertyDefinitions;
import com.mysql.cj.conf.
PropertyKey;
import com.mysql.cj.conf.
PropertySet;
import com.mysql.cj.exceptions.
DataConversionException;
import com.mysql.cj.protocol.
InternalDate;
import com.mysql.cj.protocol.
InternalTime;
import com.mysql.cj.protocol.
InternalTimestamp;
import com.mysql.cj.protocol.a.
MysqlTextValueDecoder;
import com.mysql.cj.util.
StringUtils;
public abstract class
AbstractDateTimeValueFactory<T> extends
DefaultValueFactory<T> {
public
AbstractDateTimeValueFactory(
PropertySet pset) {
super(
pset);
}
abstract T
localCreateFromDate(
InternalDate idate);
abstract T
localCreateFromTime(
InternalTime it);
abstract T
localCreateFromTimestamp(
InternalTimestamp its);
@
Override
public T
createFromDate(
InternalDate idate) {
if (
idate.
isZero()) {
switch (this.
pset.<
PropertyDefinitions.
ZeroDatetimeBehavior>
getEnumProperty(
PropertyKey.
zeroDateTimeBehavior).
getValue()) {
case
CONVERT_TO_NULL:
return null;
case
ROUND:
return
localCreateFromDate(new
InternalDate(1, 1, 1));
default:
break;
}
}
return
localCreateFromDate(
idate);
}
@
Override
public T
createFromTime(
InternalTime it) {
return
localCreateFromTime(
it);
}
@
Override
public T
createFromTimestamp(
InternalTimestamp its) {
if (
its.
isZero()) {
switch (this.
pset.<
PropertyDefinitions.
ZeroDatetimeBehavior>
getEnumProperty(
PropertyKey.
zeroDateTimeBehavior).
getValue()) {
case
CONVERT_TO_NULL:
return null;
case
ROUND:
return
localCreateFromTimestamp(new
InternalTimestamp(1, 1, 1, 0, 0, 0, 0));
default:
break;
}
}
return
localCreateFromTimestamp(
its);
}
@
Override
public T
createFromYear(long
year) {
if (this.
pset.
getBooleanProperty(
PropertyKey.
yearIsDateType).
getValue()) {
if (
year < 100) {
if (
year <= 69) {
year += 100;
}
year += 1900;
}
return
createFromDate(new
InternalDate((int)
year, 1, 1));
}
return
createFromLong(
year);
}
@
Override
public T
createFromBytes(byte[]
bytes, int
offset, int
length,
Field f) {
if (
length == 0 && this.
pset.
getBooleanProperty(
PropertyKey.
emptyStringsConvertToZero).
getValue()) {
return
createFromLong(0);
}
// TODO: Too expensive to convert from other charset to ASCII here? UTF-8 (e.g.) doesn't need any conversion before being sent to the decoder
String s =
StringUtils.
toString(
bytes,
offset,
length,
f.
getEncoding());
byte[]
newBytes =
s.
getBytes();
if (
MysqlTextValueDecoder.
isDate(
s)) {
return
createFromDate(
MysqlTextValueDecoder.
getDate(
newBytes, 0,
newBytes.length));
} else if (
MysqlTextValueDecoder.
isTime(
s)) {
return
createFromTime(
MysqlTextValueDecoder.
getTime(
newBytes, 0,
newBytes.length));
} else if (
MysqlTextValueDecoder.
isTimestamp(
s)) {
return
createFromTimestamp(
MysqlTextValueDecoder.
getTimestamp(
newBytes, 0,
newBytes.length));
}
throw new
DataConversionException(
Messages.
getString("ResultSet.UnableToConvertString", new
Object[] {
s,
getTargetTypeName() }));
}
}