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JDBC Type 4 driver for MySQL.
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/*
* Copyright (c) 2017, 2024, Oracle and/or its affiliates.
*
* 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 designed to work with certain software 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 either included with the program or referenced in the documentation.
*
* 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;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.ObjectOutputStream;
import java.io.Reader;
import java.math.BigDecimal;
import java.math.BigInteger;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
import java.sql.NClob;
import java.sql.Time;
import java.sql.Timestamp;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.ZonedDateTime;
import java.util.Calendar;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Optional;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.Function;
import com.mysql.cj.conf.PropertyKey;
import com.mysql.cj.exceptions.ExceptionFactory;
import com.mysql.cj.exceptions.MysqlErrorNumbers;
import com.mysql.cj.exceptions.WrongArgumentException;
import com.mysql.cj.protocol.ColumnDefinition;
import com.mysql.cj.result.Field;
import com.mysql.cj.util.StringUtils;
public class NativeQueryBindings implements QueryBindings {
private Session session;
/** Bind values for individual fields */
private BindValue[] bindValues;
private int numberOfExecutions = 0;
/** Is this query a LOAD DATA query? */
private boolean isLoadDataQuery = false;
private ColumnDefinition columnDefinition;
/** Do we need to send/resend types to the server? */
private AtomicBoolean sendTypesToServer = new AtomicBoolean(false); // specific to ServerPreparedQuery
private Function bindValueConstructor;
/**
* Flag indicating whether or not the long parameters have been 'switched' back to normal parameters.
* We cannot execute() if clearParameters() has not been called in this case.
*/
private boolean longParameterSwitchDetected = false; // specific to ServerPreparedQuery
public NativeQueryBindings(int parameterCount, Session sess, Function bindValueConstructor) {
this.session = sess;
this.bindValueConstructor = bindValueConstructor;
this.bindValues = new BindValue[parameterCount];
for (int i = 0; i < parameterCount; i++) {
this.bindValues[i] = bindValueConstructor.apply(this.session);
}
}
@Override
public QueryBindings clone() {
NativeQueryBindings newBindings = new NativeQueryBindings(this.bindValues.length, this.session, this.bindValueConstructor);
BindValue[] bvs = new BindValue[this.bindValues.length];
for (int i = 0; i < this.bindValues.length; i++) {
bvs[i] = this.bindValues[i].clone();
}
newBindings.setBindValues(bvs);
newBindings.isLoadDataQuery = this.isLoadDataQuery;
newBindings.sendTypesToServer.set(this.sendTypesToServer.get());
newBindings.setLongParameterSwitchDetected(isLongParameterSwitchDetected());
return newBindings;
}
@Override
public void setColumnDefinition(ColumnDefinition colDef) {
this.columnDefinition = colDef;
}
@Override
public BindValue[] getBindValues() {
return this.bindValues;
}
@Override
public void setBindValues(BindValue[] bindValues) {
this.bindValues = bindValues;
}
@Override
public boolean clearBindValues() {
boolean hadLongData = false;
if (this.bindValues != null) {
for (int i = 0; i < this.bindValues.length; i++) {
if (this.bindValues[i] != null && this.bindValues[i].isStream()) {
hadLongData = true;
}
this.bindValues[i].reset();
}
}
return hadLongData;
}
@Override
public void checkParameterSet(int columnIndex) {
if (!this.bindValues[columnIndex].isSet()) {
throw ExceptionFactory.createException(Messages.getString("PreparedStatement.40") + (columnIndex + 1),
MysqlErrorNumbers.SQLSTATE_DYNAMIC_SQL_ERROR_USING_CLAUSE_DOES_NOT_MATCH_DYNAMIC_PARAMETER_SPECIFICATIONS, 0, true, null,
this.session.getExceptionInterceptor());
}
}
@Override
public void checkAllParametersSet() {
for (int i = 0; i < this.bindValues.length; i++) {
checkParameterSet(i);
}
}
@Override
public int getNumberOfExecutions() {
return this.numberOfExecutions;
}
@Override
public void setNumberOfExecutions(int numberOfExecutions) {
this.numberOfExecutions = numberOfExecutions;
}
@Override
public boolean isLongParameterSwitchDetected() {
return this.longParameterSwitchDetected;
}
@Override
public void setLongParameterSwitchDetected(boolean longParameterSwitchDetected) {
this.longParameterSwitchDetected = longParameterSwitchDetected;
}
@Override
public AtomicBoolean getSendTypesToServer() {
return this.sendTypesToServer;
}
/**
* Returns the structure representing the value that (can be)/(is)
* bound at the given parameter index.
*
* @param parameterIndex
* 0-based
* @param forLongData
* is this for a stream?
* @return BindValue
*/
@Override
public BindValue getBinding(int parameterIndex, boolean forLongData) {
if (this.bindValues[parameterIndex] != null && this.bindValues[parameterIndex].isStream() && !forLongData) {
this.longParameterSwitchDetected = true;
}
return this.bindValues[parameterIndex];
}
@Override
public void setFromBindValue(int parameterIndex, BindValue bv) {
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(bv.getValue(), bv.getMysqlType(), this.numberOfExecutions, this.sendTypesToServer);
binding.setKeepOrigNanos(bv.keepOrigNanos());
binding.setCalendar(bv.getCalendar());
binding.setEscapeBytesIfNeeded(bv.escapeBytesIfNeeded());
binding.setIsNational(bv.isNational());
binding.setField(bv.getField());
binding.setScaleOrLength(bv.getScaleOrLength());
}
private static final Map, MysqlType> DEFAULT_MYSQL_TYPES = new HashMap<>();
static {
DEFAULT_MYSQL_TYPES.put(BigDecimal.class, MysqlType.DECIMAL);
DEFAULT_MYSQL_TYPES.put(BigInteger.class, MysqlType.BIGINT);
DEFAULT_MYSQL_TYPES.put(Blob.class, MysqlType.BLOB);
DEFAULT_MYSQL_TYPES.put(Boolean.class, MysqlType.BOOLEAN);
DEFAULT_MYSQL_TYPES.put(Byte.class, MysqlType.TINYINT);
DEFAULT_MYSQL_TYPES.put(byte[].class, MysqlType.BINARY);
DEFAULT_MYSQL_TYPES.put(Calendar.class, MysqlType.TIMESTAMP);
DEFAULT_MYSQL_TYPES.put(Clob.class, MysqlType.TEXT);
DEFAULT_MYSQL_TYPES.put(Date.class, MysqlType.DATE);
DEFAULT_MYSQL_TYPES.put(java.util.Date.class, MysqlType.TIMESTAMP);
DEFAULT_MYSQL_TYPES.put(Double.class, MysqlType.DOUBLE);
DEFAULT_MYSQL_TYPES.put(Duration.class, MysqlType.TIME);
DEFAULT_MYSQL_TYPES.put(Float.class, MysqlType.FLOAT);
DEFAULT_MYSQL_TYPES.put(InputStream.class, MysqlType.BLOB);
DEFAULT_MYSQL_TYPES.put(Instant.class, MysqlType.TIMESTAMP);
DEFAULT_MYSQL_TYPES.put(Integer.class, MysqlType.INT);
DEFAULT_MYSQL_TYPES.put(LocalDate.class, MysqlType.DATE);
DEFAULT_MYSQL_TYPES.put(LocalDateTime.class, MysqlType.DATETIME); // default JDBC mapping is TIMESTAMP, see B-4
DEFAULT_MYSQL_TYPES.put(LocalTime.class, MysqlType.TIME);
DEFAULT_MYSQL_TYPES.put(Long.class, MysqlType.BIGINT);
DEFAULT_MYSQL_TYPES.put(OffsetDateTime.class, MysqlType.TIMESTAMP); // default JDBC mapping is TIMESTAMP_WITH_TIMEZONE, see B-4
DEFAULT_MYSQL_TYPES.put(OffsetTime.class, MysqlType.TIME); // default JDBC mapping is TIME_WITH_TIMEZONE, see B-4
DEFAULT_MYSQL_TYPES.put(Reader.class, MysqlType.TEXT);
DEFAULT_MYSQL_TYPES.put(Short.class, MysqlType.SMALLINT);
DEFAULT_MYSQL_TYPES.put(String.class, MysqlType.VARCHAR);
DEFAULT_MYSQL_TYPES.put(Time.class, MysqlType.TIME);
DEFAULT_MYSQL_TYPES.put(Timestamp.class, MysqlType.TIMESTAMP);
DEFAULT_MYSQL_TYPES.put(ZonedDateTime.class, MysqlType.TIMESTAMP); // no JDBC mapping is defined
}
@Override
public void setAsciiStream(int parameterIndex, InputStream x, int length) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, true);
binding.setBinding(x, MysqlType.TEXT, this.numberOfExecutions, this.sendTypesToServer); // TODO use length to find right TEXT type
binding.setScaleOrLength(length);
}
@Override
public void setBigDecimal(int parameterIndex, BigDecimal x) {
if (x == null) {
setNull(parameterIndex);
return;
}
getBinding(parameterIndex, false).setBinding(x, MysqlType.DECIMAL, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setBigInteger(int parameterIndex, BigInteger x) {
if (x == null) {
setNull(parameterIndex);
return;
}
getBinding(parameterIndex, false).setBinding(x, MysqlType.BIGINT_UNSIGNED, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setBinaryStream(int parameterIndex, InputStream x, int length) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, true);
binding.setBinding(x, MysqlType.BLOB, this.numberOfExecutions, this.sendTypesToServer); // TODO use length to find the right BLOB type
binding.setScaleOrLength(length);
}
@Override
public void setBlob(int parameterIndex, Blob x) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.BLOB, this.numberOfExecutions, this.sendTypesToServer);
binding.setScaleOrLength(-1);
}
@Override
public void setBoolean(int parameterIndex, boolean x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.BOOLEAN, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setByte(int parameterIndex, byte x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.TINYINT, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setBytes(int parameterIndex, byte[] x, boolean escapeIfNeeded) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.BINARY, this.numberOfExecutions, this.sendTypesToServer); // TODO VARBINARY ?
binding.setEscapeBytesIfNeeded(escapeIfNeeded);
}
@Override
public void setCharacterStream(int parameterIndex, Reader reader, int length) {
if (reader == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, true);
binding.setBinding(reader, MysqlType.TEXT, this.numberOfExecutions, this.sendTypesToServer);
binding.setScaleOrLength(length);
}
@Override
public void setClob(int parameterIndex, Clob x) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.TEXT, this.numberOfExecutions, this.sendTypesToServer);
binding.setScaleOrLength(-1);
}
@Override
public void setDate(int parameterIndex, Date x, Calendar cal) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.DATE, this.numberOfExecutions, this.sendTypesToServer);
binding.setCalendar(cal == null ? null : (Calendar) cal.clone());
}
@Override
public void setDouble(int parameterIndex, double x) {
if (!this.session.getPropertySet().getBooleanProperty(PropertyKey.allowNanAndInf).getValue()
&& (x == Double.POSITIVE_INFINITY || x == Double.NEGATIVE_INFINITY || Double.isNaN(x))) {
throw ExceptionFactory.createException(WrongArgumentException.class, Messages.getString("PreparedStatement.64", new Object[] { x }),
this.session.getExceptionInterceptor());
}
getBinding(parameterIndex, false).setBinding(x, MysqlType.DOUBLE, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setFloat(int parameterIndex, float x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.FLOAT, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setInt(int parameterIndex, int x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.INT, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setLong(int parameterIndex, long x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.BIGINT, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setNCharacterStream(int parameterIndex, Reader reader, long length) {
if (reader == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, true);
binding.setBinding(reader, MysqlType.TEXT, this.numberOfExecutions, this.sendTypesToServer);
binding.setScaleOrLength(length);
binding.setIsNational(true);
}
@Override
public void setNClob(int parameterIndex, NClob value) {
if (value == null) {
setNull(parameterIndex);
return;
}
try {
setNCharacterStream(parameterIndex, value.getCharacterStream(), value.length());
} catch (Throwable t) {
throw ExceptionFactory.createException(t.getMessage(), t, this.session.getExceptionInterceptor());
}
}
@Override
public void setNString(int parameterIndex, String x) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.VARCHAR, this.numberOfExecutions, this.sendTypesToServer);
binding.setIsNational(true);
}
@Override
public void setNull(int parameterIndex) {
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(null, MysqlType.NULL, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public boolean isNull(int parameterIndex) {
return this.bindValues[parameterIndex].isNull();
}
@Override
public void setShort(int parameterIndex, short x) {
getBinding(parameterIndex, false).setBinding(x, MysqlType.SMALLINT, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setString(int parameterIndex, String x) {
if (x == null) {
setNull(parameterIndex);
return;
}
getBinding(parameterIndex, false).setBinding(x, MysqlType.VARCHAR, this.numberOfExecutions, this.sendTypesToServer);
}
@Override
public void setTime(int parameterIndex, Time x, Calendar cal) {
if (x == null) {
setNull(parameterIndex);
return;
}
BindValue binding = getBinding(parameterIndex, false);
binding.setBinding(x, MysqlType.TIME, this.numberOfExecutions, this.sendTypesToServer);
binding.setCalendar(cal == null ? null : (Calendar) cal.clone());
}
@Override
public void setTimestamp(int parameterIndex, Timestamp x, Calendar targetCalendar, Field field, MysqlType targetMysqlType) {
if (x == null) {
setNull(parameterIndex);
return;
}
if (field == null) {
if (this.columnDefinition != null && parameterIndex <= this.columnDefinition.getFields().length && parameterIndex >= 0
&& this.columnDefinition.getFields()[parameterIndex].getDecimals() > 0) {
field = this.columnDefinition.getFields()[parameterIndex];
}
}
BindValue binding = getBinding(parameterIndex, false);
if (field == null) {
binding.setField(field);
}
binding.setBinding(x, targetMysqlType, this.numberOfExecutions, this.sendTypesToServer);
binding.setCalendar(targetCalendar == null ? null : (Calendar) targetCalendar.clone());
}
@Override
public void setObject(int parameterIndex, Object parameterObj) {
if (parameterObj == null) {
setNull(parameterIndex);
return;
}
MysqlType defaultMysqlType = DEFAULT_MYSQL_TYPES.get(parameterObj.getClass());
if (defaultMysqlType == null) {
Optional mysqlType = DEFAULT_MYSQL_TYPES.entrySet().stream().filter(m -> m.getKey().isAssignableFrom(parameterObj.getClass()))
.map(Entry::getValue).findFirst();
if (mysqlType.isPresent()) {
defaultMysqlType = mysqlType.get();
}
}
setObject(parameterIndex, parameterObj, defaultMysqlType, -1);
}
/**
* Set the value of a parameter using an object; use the java.lang equivalent objects for integral values.
*
*
* The given Java object will be converted to the targetMysqlType before being sent to the database.
*
* @param parameterIndex
* the first parameter is 1...
* @param parameterObj
* the object containing the input parameter value
* @param targetMysqlType
* The MysqlType to be send to the database
* @param scaleOrLength
* For Types.DECIMAL or Types.NUMERIC types
* this is the number of digits after the decimal. For all other
* types this value will be ignored.
*/
@Override
public void setObject(int parameterIndex, Object parameterObj, MysqlType targetMysqlType, int scaleOrLength) {
if (parameterObj == null) {
setNull(parameterIndex);
return;
}
try {
if (targetMysqlType == null || targetMysqlType == MysqlType.UNKNOWN || parameterObj instanceof java.util.Date
&& !this.session.getPropertySet().getBooleanProperty(PropertyKey.treatUtilDateAsTimestamp).getValue()) {
setSerializableObject(parameterIndex, parameterObj);
return;
}
BindValue binding = getBinding(parameterIndex, false);
if (this.columnDefinition != null && parameterIndex <= this.columnDefinition.getFields().length && parameterIndex >= 0) {
// use the column definition if available
binding.setField(this.columnDefinition.getFields()[parameterIndex]);
}
binding.setBinding(parameterObj, targetMysqlType, this.numberOfExecutions, this.sendTypesToServer);
binding.setScaleOrLength(scaleOrLength);
} catch (Exception ex) {
throw ExceptionFactory.createException(
Messages.getString("PreparedStatement.17") + parameterObj.getClass().toString() + Messages.getString("PreparedStatement.18")
+ ex.getClass().getName() + Messages.getString("PreparedStatement.19") + ex.getMessage(),
ex, this.session.getExceptionInterceptor());
}
}
/**
* Sets the value for the placeholder as a serialized Java object (used by various forms of setObject()
*
* @param parameterIndex
* parameter index
* @param parameterObj
* value
*/
protected final void setSerializableObject(int parameterIndex, Object parameterObj) {
try {
ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
ObjectOutputStream objectOut = new ObjectOutputStream(bytesOut);
objectOut.writeObject(parameterObj);
objectOut.flush();
objectOut.close();
bytesOut.flush();
bytesOut.close();
byte[] buf = bytesOut.toByteArray();
ByteArrayInputStream bytesIn = new ByteArrayInputStream(buf);
setBinaryStream(parameterIndex, bytesIn, buf.length);
this.bindValues[parameterIndex].setMysqlType(MysqlType.BINARY);
} catch (Exception ex) {
throw ExceptionFactory.createException(WrongArgumentException.class, Messages.getString("PreparedStatement.54") + ex.getClass().getName(), ex,
this.session.getExceptionInterceptor());
}
}
@Override
public byte[] getBytesRepresentation(int parameterIndex) {
byte[] parameterVal = this.bindValues[parameterIndex].getByteValue();
return parameterVal == null ? null : this.bindValues[parameterIndex].isStream() ? parameterVal : StringUtils.unquoteBytes(parameterVal);
}
}
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