/*
* 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.
CharsetMapping;
import com.mysql.cj.conf.
PropertyKey;
import com.mysql.cj.conf.
PropertySet;
import com.mysql.cj.protocol.
InternalDate;
import com.mysql.cj.protocol.
InternalTime;
import com.mysql.cj.protocol.
InternalTimestamp;
import com.mysql.cj.util.
DataTypeUtil;
import com.mysql.cj.util.
StringUtils;
/**
* A {@link com.mysql.cj.result.ValueFactory} implementation to create strings.
*/
public class
StringValueFactory implements
ValueFactory<
String> {
protected
PropertySet pset = null;
public
StringValueFactory(
PropertySet pset) {
this.
pset =
pset;
}
@
Override
public void
setPropertySet(
PropertySet pset) {
this.
pset =
pset;
}
/**
* Create a string from InternalDate. The fields are formatted in a YYYY-mm-dd format.
*
* @param idate
* {@link InternalDate}
* @return string
*/
public
String createFromDate(
InternalDate idate) {
// essentially the same string we received from the server, no TZ interpretation
return
String.
format("%04d-%02d-%02d",
idate.
getYear(),
idate.
getMonth(),
idate.
getDay());
}
/**
* Create a string from InternalTime. The fields are formatted in a HH:MM:SS[.nnnnnnnnn] format.
*
* @param it
* {@link InternalTime}
* @return string
*/
public
String createFromTime(
InternalTime it) {
if (
it.
getNanos() > 0) {
return
String.
format("%02d:%02d:%02d.%09d",
it.
getHours(),
it.
getMinutes(),
it.
getSeconds(),
it.
getNanos());
}
return
String.
format("%02d:%02d:%02d",
it.
getHours(),
it.
getMinutes(),
it.
getSeconds());
}
/**
* Create a string from time fields. The fields are formatted by concatenating the result of {@link #createFromDate(InternalDate)} and {@link
* #createFromTime(InternalTime)}.
*
* @param its
* {@link InternalTimestamp}
* @return string
*/
public
String createFromTimestamp(
InternalTimestamp its) {
return
String.
format("%s %s",
createFromDate(
its),
createFromTime(new
InternalTime(
its.
getHours(),
its.
getMinutes(),
its.
getSeconds(),
its.
getNanos())));
}
public
String createFromLong(long
l) {
return
String.
valueOf(
l);
}
public
String createFromBigInteger(
BigInteger i) {
return
i.
toString();
}
public
String createFromDouble(double
d) {
return
String.
valueOf(
d);
}
public
String createFromBigDecimal(
BigDecimal d) {
return
d.
toString();
}
/**
* Interpret the given byte array as a string. This value factory needs to know the encoding to interpret the string. The default (null) will interpet the
* byte array using the platform encoding.
*
* @param bytes
* byte array
* @param offset
* offset
* @param length
* data length in bytes
* @return string
*/
public
String createFromBytes(byte[]
bytes, int
offset, int
length,
Field f) {
return
StringUtils.
toString(
bytes,
offset,
length,
f.
getCollationIndex() ==
CharsetMapping.
MYSQL_COLLATION_INDEX_binary ? this.
pset.
getStringProperty(
PropertyKey.
characterEncoding).
getValue()
:
f.
getEncoding());
}
@
Override
public
String createFromBit(byte[]
bytes, int
offset, int
length) {
return
createFromLong(
DataTypeUtil.
bitToLong(
bytes,
offset,
length));
}
@
Override
public
String createFromYear(long
l) {
if (this.
pset.
getBooleanProperty(
PropertyKey.
yearIsDateType).
getValue()) {
if (
l < 100) {
if (
l <= 69) {
l += 100;
}
l += 1900;
}
return
createFromDate(new
InternalDate((int)
l, 1, 1));
}
return
createFromLong(
l);
}
public
String createFromNull() {
return null;
}
public
String getTargetTypeName() {
return
String.class.
getName();
}
}