/*
* Copyright (c) 2015, 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 java.math.
BigDecimal;
import java.math.
BigInteger;
import com.mysql.cj.
Constants;
import com.mysql.cj.
Messages;
import com.mysql.cj.conf.
PropertyKey;
import com.mysql.cj.conf.
PropertySet;
import com.mysql.cj.exceptions.
NumberOutOfRange;
import com.mysql.cj.util.
DataTypeUtil;
import com.mysql.cj.util.
StringUtils;
/**
* A value factory for creating byte values.
*/
public class
ByteValueFactory extends
DefaultValueFactory<
Byte> {
public
ByteValueFactory(
PropertySet pset) {
super(
pset);
}
@
Override
public
Byte createFromBigInteger(
BigInteger i) {
if (this.
jdbcCompliantTruncationForReads
&& (
i.
compareTo(
Constants.
BIG_INTEGER_MIN_BYTE_VALUE) < 0 ||
i.
compareTo(
Constants.
BIG_INTEGER_MAX_BYTE_VALUE) > 0)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
i,
getTargetTypeName() }));
}
return (byte)
i.
intValue();
}
@
Override
public
Byte createFromLong(long
l) {
if (this.
jdbcCompliantTruncationForReads && (
l <
Byte.
MIN_VALUE ||
l >
Byte.
MAX_VALUE)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
Long.
valueOf(
l).
toString(),
getTargetTypeName() }));
}
return (byte)
l;
}
@
Override
public
Byte createFromBigDecimal(
BigDecimal d) {
if (this.
jdbcCompliantTruncationForReads
&& (
d.
compareTo(
Constants.
BIG_DECIMAL_MIN_BYTE_VALUE) < 0 ||
d.
compareTo(
Constants.
BIG_DECIMAL_MAX_BYTE_VALUE) > 0)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
d,
getTargetTypeName() }));
}
return (byte)
d.
longValue();
}
@
Override
public
Byte createFromDouble(double
d) {
if (this.
jdbcCompliantTruncationForReads && (
d <
Byte.
MIN_VALUE ||
d >
Byte.
MAX_VALUE)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
d,
getTargetTypeName() }));
}
return (byte)
d;
}
@
Override
public
Byte createFromBit(byte[]
bytes, int
offset, int
length) {
long
l =
DataTypeUtil.
bitToLong(
bytes,
offset,
length);
if (this.
jdbcCompliantTruncationForReads &&
l >> 8 != 0) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
Long.
valueOf(
l).
toString(),
getTargetTypeName() }));
}
return (byte)
l;
}
@
Override
public
Byte createFromYear(long
l) {
return
createFromLong(
l);
}
public
String getTargetTypeName() {
return
Byte.class.
getName();
}
@
Override
public
Byte createFromBytes(byte[]
bytes, int
offset, int
length,
Field f) {
if (
length == 0 && this.
pset.
getBooleanProperty(
PropertyKey.
emptyStringsConvertToZero).
getValue()) {
return (byte) 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 (this.
jdbcCompliantTruncationForReads &&
newBytes.length != 1) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
s,
getTargetTypeName() }));
}
return
newBytes[0];
}
}