/*
* 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 java.nio.
ByteBuffer;
import com.mysql.cj.
Constants;
import com.mysql.cj.
Messages;
import com.mysql.cj.conf.
PropertySet;
import com.mysql.cj.exceptions.
NumberOutOfRange;
/**
* A value factory for creating double values.
*/
public class
DoubleValueFactory extends
AbstractNumericValueFactory<
Double> {
public
DoubleValueFactory(
PropertySet pset) {
super(
pset);
}
@
Override
public
Double createFromBigInteger(
BigInteger i) {
if (this.
jdbcCompliantTruncationForReads && (new
BigDecimal(
i).
compareTo(
Constants.
BIG_DECIMAL_MAX_NEGATIVE_DOUBLE_VALUE) < 0
|| new
BigDecimal(
i).
compareTo(
Constants.
BIG_DECIMAL_MAX_DOUBLE_VALUE) > 0)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
i,
getTargetTypeName() }));
}
return
i.
doubleValue();
}
@
Override
public
Double createFromLong(long
l) {
if (this.
jdbcCompliantTruncationForReads && (
l < -
Double.
MAX_VALUE ||
l >
Double.
MAX_VALUE)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
l,
getTargetTypeName() }));
}
return (double)
l;
}
@
Override
public
Double createFromBigDecimal(
BigDecimal d) {
if (this.
jdbcCompliantTruncationForReads
&& (
d.
compareTo(
Constants.
BIG_DECIMAL_MAX_NEGATIVE_DOUBLE_VALUE) < 0 ||
d.
compareTo(
Constants.
BIG_DECIMAL_MAX_DOUBLE_VALUE) > 0)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
d,
getTargetTypeName() }));
}
return
d.
doubleValue();
}
@
Override
public
Double createFromDouble(double
d) {
if (this.
jdbcCompliantTruncationForReads && (
d < -
Double.
MAX_VALUE ||
d >
Double.
MAX_VALUE)) {
throw new
NumberOutOfRange(
Messages.
getString("ResultSet.NumberOutOfRange", new
Object[] {
d,
getTargetTypeName() }));
}
return
d;
}
@
Override
public
Double createFromBit(byte[]
bytes, int
offset, int
length) {
return new
BigInteger(
ByteBuffer.
allocate(
length + 1).
put((byte) 0).
put(
bytes,
offset,
length).
array()).
doubleValue();
}
public
String getTargetTypeName() {
return
Double.class.
getName();
}
}