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MySQL JDBC Type 4 driver
/*
Copyright (c) 2007, 2014, Oracle and/or its affiliates. All rights reserved.
The MySQL Connector/J is licensed under the terms of the GPLv2
, like most MySQL Connectors.
There are special exceptions to the terms and conditions of the GPLv2 as it is applied to
this software, see the FOSS License Exception
.
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; version 2
of the License.
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 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.jdbc;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.io.UnsupportedEncodingException;
import java.sql.Date;
import java.sql.SQLException;
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;
import java.util.TimeZone;
/**
* A RowHolder implementation that is for cached results (a-la mysql_store_result()).
*/
public class ByteArrayRow extends ResultSetRow {
byte[][] internalRowData;
public ByteArrayRow(byte[][] internalRowData, ExceptionInterceptor exceptionInterceptor) {
super(exceptionInterceptor);
this.internalRowData = internalRowData;
}
@Override
public byte[] getColumnValue(int index) throws SQLException {
return this.internalRowData[index];
}
@Override
public void setColumnValue(int index, byte[] value) throws SQLException {
this.internalRowData[index] = value;
}
@Override
public String getString(int index, String encoding, MySQLConnection conn) throws SQLException {
byte[] columnData = this.internalRowData[index];
if (columnData == null) {
return null;
}
return getString(encoding, conn, columnData, 0, columnData.length);
}
@Override
public boolean isNull(int index) throws SQLException {
return this.internalRowData[index] == null;
}
@Override
public boolean isFloatingPointNumber(int index) throws SQLException {
byte[] numAsBytes = this.internalRowData[index];
if (this.internalRowData[index] == null || this.internalRowData[index].length == 0) {
return false;
}
for (int i = 0; i < numAsBytes.length; i++) {
if (((char) numAsBytes[i] == 'e') || ((char) numAsBytes[i] == 'E')) {
return true;
}
}
return false;
}
@Override
public long length(int index) throws SQLException {
if (this.internalRowData[index] == null) {
return 0;
}
return this.internalRowData[index].length;
}
@Override
public int getInt(int columnIndex) {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return StringUtils.getInt(this.internalRowData[columnIndex]);
}
@Override
public long getLong(int columnIndex) {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return StringUtils.getLong(this.internalRowData[columnIndex]);
}
@Override
public Timestamp getTimestampFast(int columnIndex, Calendar targetCalendar, TimeZone tz, boolean rollForward, MySQLConnection conn, ResultSetImpl rs)
throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getTimestampFast(columnIndex, this.internalRowData[columnIndex], 0, columnValue.length, targetCalendar, tz, rollForward, conn, rs);
}
@Override
public double getNativeDouble(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return getNativeDouble(this.internalRowData[columnIndex], 0);
}
@Override
public float getNativeFloat(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return getNativeFloat(this.internalRowData[columnIndex], 0);
}
@Override
public int getNativeInt(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return getNativeInt(this.internalRowData[columnIndex], 0);
}
@Override
public long getNativeLong(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return getNativeLong(this.internalRowData[columnIndex], 0);
}
@Override
public short getNativeShort(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return 0;
}
return getNativeShort(this.internalRowData[columnIndex], 0);
}
@Override
public Timestamp getNativeTimestamp(int columnIndex, Calendar targetCalendar, TimeZone tz, boolean rollForward, MySQLConnection conn, ResultSetImpl rs)
throws SQLException {
byte[] bits = this.internalRowData[columnIndex];
if (bits == null) {
return null;
}
return getNativeTimestamp(bits, 0, bits.length, targetCalendar, tz, rollForward, conn, rs);
}
@Override
public void closeOpenStreams() {
// no-op for this type
}
@Override
public InputStream getBinaryInputStream(int columnIndex) throws SQLException {
if (this.internalRowData[columnIndex] == null) {
return null;
}
return new ByteArrayInputStream(this.internalRowData[columnIndex]);
}
@Override
public Reader getReader(int columnIndex) throws SQLException {
InputStream stream = getBinaryInputStream(columnIndex);
if (stream == null) {
return null;
}
try {
return new InputStreamReader(stream, this.metadata[columnIndex].getEncoding());
} catch (UnsupportedEncodingException e) {
SQLException sqlEx = SQLError.createSQLException("", this.exceptionInterceptor);
sqlEx.initCause(e);
throw sqlEx;
}
}
@Override
public Time getTimeFast(int columnIndex, Calendar targetCalendar, TimeZone tz, boolean rollForward, MySQLConnection conn, ResultSetImpl rs)
throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getTimeFast(columnIndex, this.internalRowData[columnIndex], 0, columnValue.length, targetCalendar, tz, rollForward, conn, rs);
}
@Override
public Date getDateFast(int columnIndex, MySQLConnection conn, ResultSetImpl rs, Calendar targetCalendar) throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getDateFast(columnIndex, this.internalRowData[columnIndex], 0, columnValue.length, conn, rs, targetCalendar);
}
@Override
public Object getNativeDateTimeValue(int columnIndex, Calendar targetCalendar, int jdbcType, int mysqlType, TimeZone tz, boolean rollForward,
MySQLConnection conn, ResultSetImpl rs) throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getNativeDateTimeValue(columnIndex, columnValue, 0, columnValue.length, targetCalendar, jdbcType, mysqlType, tz, rollForward, conn, rs);
}
@Override
public Date getNativeDate(int columnIndex, MySQLConnection conn, ResultSetImpl rs, Calendar cal) throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getNativeDate(columnIndex, columnValue, 0, columnValue.length, conn, rs, cal);
}
@Override
public Time getNativeTime(int columnIndex, Calendar targetCalendar, TimeZone tz, boolean rollForward, MySQLConnection conn, ResultSetImpl rs)
throws SQLException {
byte[] columnValue = this.internalRowData[columnIndex];
if (columnValue == null) {
return null;
}
return getNativeTime(columnIndex, columnValue, 0, columnValue.length, targetCalendar, tz, rollForward, conn, rs);
}
@Override
public int getBytesSize() {
if (this.internalRowData == null) {
return 0;
}
int bytesSize = 0;
for (int i = 0; i < this.internalRowData.length; i++) {
if (this.internalRowData[i] != null) {
bytesSize += this.internalRowData[i].length;
}
}
return bytesSize;
}
}