PreparedStatement.java
上传用户:tanyanyong
上传日期:2013-06-23
资源大小:1355k
文件大小:93k
源码类别:
电子政务应用
开发平台:
MultiPlatform
- /*
- Copyright (C) 2002 MySQL AB
- 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; either version 2 of the License, or
- (at your option) any later version.
- 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- package com.mysql.jdbc;
- import java.io.ByteArrayInputStream;
- import java.io.ByteArrayOutputStream;
- import java.io.IOException;
- import java.io.InputStream;
- import java.io.ObjectOutputStream;
- import java.io.Reader;
- import java.io.StringReader;
- import java.io.UnsupportedEncodingException;
- import java.math.BigDecimal;
- import java.net.URL;
- import java.sql.Array;
- import java.sql.Clob;
- import java.sql.ParameterMetaData;
- import java.sql.Ref;
- import java.sql.SQLException;
- import java.sql.Time;
- import java.sql.Timestamp;
- import java.sql.Types;
- import java.text.ParsePosition;
- import java.text.SimpleDateFormat;
- import java.util.ArrayList;
- import java.util.Calendar;
- import java.util.TimeZone;
- /**
- * A SQL Statement is pre-compiled and stored in a PreparedStatement object.
- * This object can then be used to efficiently execute this statement multiple
- * times.
- *
- * <p>
- * <B>Note:</B> The setXXX methods for setting IN parameter values must specify
- * types that are compatible with the defined SQL type of the input parameter.
- * For instance, if the IN parameter has SQL type Integer, then setInt should
- * be used.
- * </p>
- *
- * <p>
- * If arbitrary parameter type conversions are required, then the setObject
- * method should be used with a target SQL type.
- * </p>
- *
- * @author Mark Matthews
- * @version $Id: PreparedStatement.java,v 1.27.2.33 2004/02/05 15:56:17 mmatthew Exp $
- *
- * @see java.sql.ResultSet
- * @see java.sql.PreparedStatement
- */
- public class PreparedStatement extends com.mysql.jdbc.Statement
- implements java.sql.PreparedStatement {
- private java.sql.DatabaseMetaData dbmd = null;
- private ParseInfo parseInfo;
- private java.sql.ResultSetMetaData pstmtResultMetaData;
- private SimpleDateFormat tsdf = null;
- private String originalSql = null;
- private boolean[] isNull = null;
- private boolean[] isStream = null;
- private InputStream[] parameterStreams = null;
- private byte[][] parameterValues = null;
- private byte[][] staticSqlStrings = null;
- private byte[] streamConvertBuf = new byte[4096];
- private int[] streamLengths = null;
- private boolean hasLimitClause = false;
- private boolean isLoadDataQuery = false;
- private boolean retrieveGeneratedKeys = false;
- private boolean useTrueBoolean = false;
- private char firstCharOfStmt = 0;
- /**
- * Constructor for the PreparedStatement class.
- *
- * @param conn the connection creating this statement
- * @param sql the SQL for this statement
- * @param catalog the catalog/database this statement should be issued
- * against
- *
- * @throws SQLException if a database error occurs.
- */
- public PreparedStatement(Connection conn, String sql, String catalog)
- throws SQLException {
- super(conn, catalog);
- if (sql == null) {
- throw new SQLException("SQL String can not be NULL", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- originalSql = sql;
- this.dbmd = this.connection.getMetaData();
- useTrueBoolean = connection.getIO().versionMeetsMinimum(3, 21, 23);
- this.parseInfo = new ParseInfo(sql, this.connection, this.dbmd,
- this.charEncoding, this.charConverter);
- initializeFromParseInfo();
- }
- /**
- * Creates a new PreparedStatement object.
- *
- * @param conn the connection creating this statement
- * @param sql the SQL for this statement
- * @param catalog the catalog/database this statement should be issued
- * against
- * @param cachedParseInfo already created parseInfo.
- *
- * @throws SQLException DOCUMENT ME!
- */
- public PreparedStatement(Connection conn, String sql, String catalog,
- ParseInfo cachedParseInfo) throws SQLException {
- super(conn, catalog);
- if (sql == null) {
- throw new SQLException("SQL String can not be NULL", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- originalSql = sql;
- this.dbmd = this.connection.getMetaData();
- useTrueBoolean = connection.getIO().versionMeetsMinimum(3, 21, 23);
- this.parseInfo = cachedParseInfo;
- initializeFromParseInfo();
- }
- /**
- * JDBC 2.0 Set an Array parameter.
- *
- * @param i the first parameter is 1, the second is 2, ...
- * @param x an object representing an SQL array
- *
- * @throws SQLException because this method is not implemented.
- * @throws NotImplemented DOCUMENT ME!
- */
- public void setArray(int i, Array x) throws SQLException {
- throw new NotImplemented();
- }
- /**
- * When a very large ASCII value is input to a LONGVARCHAR parameter, it
- * may be more practical to send it via a java.io.InputStream. JDBC will
- * read the data from the stream as needed, until it reaches end-of-file.
- * The JDBC driver will do any necessary conversion from ASCII to the
- * database char format.
- *
- * <P>
- * <B>Note:</B> This stream object can either be a standard Java stream
- * object or your own subclass that implements the standard interface.
- * </p>
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- * @param length the number of bytes in the stream
- *
- * @exception SQLException if a database access error occurs
- */
- public synchronized void setAsciiStream(int parameterIndex, InputStream x,
- int length) throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.VARCHAR);
- } else {
- setBinaryStream(parameterIndex, x, length);
- }
- }
- /**
- * Set a parameter to a java.math.BigDecimal value. The driver converts
- * this to a SQL NUMERIC value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @exception SQLException if a database access error occurs
- */
- public void setBigDecimal(int parameterIndex, BigDecimal x)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.DECIMAL);
- } else {
- setInternal(parameterIndex, fixDecimalExponent(x.toString()));
- }
- }
- /**
- * When a very large binary value is input to a LONGVARBINARY parameter, it
- * may be more practical to send it via a java.io.InputStream. JDBC will
- * read the data from the stream as needed, until it reaches end-of-file.
- *
- * <P>
- * <B>Note:</B> This stream object can either be a standard Java stream
- * object or your own subclass that implements the standard interface.
- * </p>
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- * @param length the number of bytes to read from the stream (ignored)
- *
- * @throws SQLException if a database access error occurs
- * @throws java.sql.SQLException DOCUMENT ME!
- */
- public void setBinaryStream(int parameterIndex, InputStream x, int length)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.BINARY);
- } else {
- if ((parameterIndex < 1)
- || (parameterIndex > staticSqlStrings.length)) {
- throw new java.sql.SQLException(
- "Parameter index out of range (" + parameterIndex + " > "
- + staticSqlStrings.length + ")", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- parameterStreams[parameterIndex - 1] = x;
- isStream[parameterIndex - 1] = true;
- streamLengths[parameterIndex - 1] = length;
- isNull[parameterIndex - 1] = false;
- }
- }
- /**
- * JDBC 2.0 Set a BLOB parameter.
- *
- * @param i the first parameter is 1, the second is 2, ...
- * @param x an object representing a BLOB
- *
- * @throws SQLException if a database error occurs
- */
- public void setBlob(int i, java.sql.Blob x) throws SQLException {
- setBinaryStream(i, x.getBinaryStream(), (int) x.length());
- }
- /**
- * Set a parameter to a Java boolean value. The driver converts this to a
- * SQL BIT value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setBoolean(int parameterIndex, boolean x)
- throws SQLException {
- if (useTrueBoolean) {
- setInternal(parameterIndex, x ? "'1'" : "'0'");
- } else {
- setInternal(parameterIndex, x ? "'t'" : "'f'");
- }
- }
- /**
- * Set a parameter to a Java byte value. The driver converts this to a SQL
- * TINYINT value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @exception SQLException if a database access error occurs
- */
- public void setByte(int parameterIndex, byte x) throws SQLException {
- setInternal(parameterIndex, String.valueOf(x));
- }
- /**
- * Set a parameter to a Java array of bytes. The driver converts this to a
- * SQL VARBINARY or LONGVARBINARY (depending on the argument's size
- * relative to the driver's limits on VARBINARYs) when it sends it to the
- * database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @exception SQLException if a database access error occurs
- */
- public void setBytes(int parameterIndex, byte[] x)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.BINARY);
- } else {
- // escape them
- int numBytes = x.length;
- ByteArrayOutputStream bOut = new ByteArrayOutputStream(numBytes);
- bOut.write(''');
- for (int i = 0; i < numBytes; ++i) {
- byte b = x[i];
- switch (b) {
- case 0: /* Must be escaped for 'mysql' */
- bOut.write('\');
- bOut.write('0');
- break;
- case 'n': /* Must be escaped for logs */
- bOut.write('\');
- bOut.write('n');
- break;
- case 'r':
- bOut.write('\');
- bOut.write('r');
- break;
- case '\':
- bOut.write('\');
- bOut.write('\');
- break;
- case ''':
- bOut.write('\');
- bOut.write(''');
- break;
- case '"': /* Better safe than sorry */
- bOut.write('\');
- bOut.write('"');
- break;
- case ' 32': /* This gives problems on Win32 */
- bOut.write('\');
- bOut.write('Z');
- break;
- default:
- bOut.write(b);
- }
- }
- bOut.write(''');
- setInternal(parameterIndex, bOut.toByteArray());
- }
- }
- /**
- * JDBC 2.0 When a very large UNICODE value is input to a LONGVARCHAR
- * parameter, it may be more practical to send it via a java.io.Reader.
- * JDBC will read the data from the stream as needed, until it reaches
- * end-of-file. The JDBC driver will do any necessary conversion from
- * UNICODE to the database char format.
- *
- * <P>
- * <B>Note:</B> This stream object can either be a standard Java stream
- * object or your own subclass that implements the standard interface.
- * </p>
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param reader the java reader which contains the UNICODE data
- * @param length the number of characters in the stream
- *
- * @throws SQLException if a database-access error occurs.
- */
- public void setCharacterStream(int parameterIndex, java.io.Reader reader,
- int length) throws SQLException {
- try {
- if (reader == null) {
- setNull(parameterIndex, Types.LONGVARCHAR);
- } else {
- char[] c = null;
- int len = 0;
- boolean useLength = this.connection.useStreamLengthsInPrepStmts();
- if (useLength && (length != -1)) {
- c = new char[length];
- int numCharsRead = readFully(reader, c, length); // blocks until all read
- setString(parameterIndex, new String(c, 0, numCharsRead));
- } else {
- c = new char[4096];
- StringBuffer buf = new StringBuffer();
- while ((len = reader.read(c)) != -1) {
- buf.append(c, 0, len);
- }
- setString(parameterIndex, buf.toString());
- }
- }
- } catch (java.io.IOException ioEx) {
- throw new SQLException(ioEx.toString(), SQLError.SQL_STATE_GENERAL_ERROR);
- }
- }
- /**
- * JDBC 2.0 Set a CLOB parameter.
- *
- * @param i the first parameter is 1, the second is 2, ...
- * @param x an object representing a CLOB
- *
- * @throws SQLException if a database error occurs
- */
- public void setClob(int i, Clob x) throws SQLException {
- setString(i, x.getSubString(1L, (int) x.length()));
- }
- /**
- * Set a parameter to a java.sql.Date value. The driver converts this to a
- * SQL DATE value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @exception SQLException if a database access error occurs
- */
- public void setDate(int parameterIndex, java.sql.Date x)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.DATE);
- } else {
- // FIXME: Have instance version of this, problem as it's
- // not thread-safe :(
- SimpleDateFormat dateFormatter = new SimpleDateFormat(
- "''yyyy-MM-dd''");
- setInternal(parameterIndex, dateFormatter.format(x));
- }
- }
- /**
- * Set a parameter to a java.sql.Date value. The driver converts this to a
- * SQL DATE value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param x the parameter value
- * @param cal the calendar to interpret the date with
- *
- * @throws SQLException if a database-access error occurs.
- */
- public void setDate(int parameterIndex, java.sql.Date x, Calendar cal)
- throws SQLException {
- setDate(parameterIndex, x);
- }
- /**
- * Set a parameter to a Java double value. The driver converts this to a
- * SQL DOUBLE value when it sends it to the database
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setDouble(int parameterIndex, double x)
- throws SQLException {
- setInternal(parameterIndex, fixDecimalExponent(String.valueOf(x)));
- }
- /**
- * Set a parameter to a Java float value. The driver converts this to a
- * SQL FLOAT value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setFloat(int parameterIndex, float x) throws SQLException {
- setInternal(parameterIndex, fixDecimalExponent(String.valueOf(x)));
- }
- /**
- * Set a parameter to a Java int value. The driver converts this to a SQL
- * INTEGER value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setInt(int parameterIndex, int x) throws SQLException {
- setInternal(parameterIndex, String.valueOf(x));
- }
- /**
- * Set a parameter to a Java long value. The driver converts this to a SQL
- * BIGINT value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setLong(int parameterIndex, long x) throws SQLException {
- setInternal(parameterIndex, String.valueOf(x));
- }
- /**
- * The number, types and properties of a ResultSet's columns are provided
- * by the getMetaData method.
- *
- * @return the description of a ResultSet's columns
- *
- * @throws SQLException if a database-access error occurs.
- */
- public synchronized java.sql.ResultSetMetaData getMetaData() throws SQLException {
- PreparedStatement mdStmt = null;
- java.sql.ResultSet mdRs = null;
- if (this.pstmtResultMetaData == null) {
- try {
- mdStmt = new PreparedStatement(this.connection,
- this.originalSql, this.currentCatalog, this.parseInfo);
- mdStmt.setMaxRows(0);
- int paramCount = this.parameterValues.length;
- for (int i = 1; i <= paramCount; i++) {
- mdStmt.setString(i, "");
- }
- boolean hadResults = mdStmt.execute();
- if (hadResults) {
- mdRs = mdStmt.getResultSet();
- this.pstmtResultMetaData = mdRs.getMetaData();
- } else {
- this.pstmtResultMetaData = new ResultSetMetaData(new Field[0]);
- }
- } finally {
- SQLException sqlExRethrow = null;
- if (mdRs != null) {
- try {
- mdRs.close();
- } catch (SQLException sqlEx) {
- sqlExRethrow = sqlEx;
- }
- mdRs = null;
- }
- if (mdStmt != null) {
- try {
- mdStmt.close();
- } catch (SQLException sqlEx) {
- sqlExRethrow = sqlEx;
- }
- mdStmt = null;
- }
- if (sqlExRethrow != null) {
- throw sqlExRethrow;
- }
- }
- }
- return this.pstmtResultMetaData;
- }
- /**
- * Set a parameter to SQL NULL
- *
- * <p>
- * <B>Note:</B> You must specify the parameters SQL type (although MySQL
- * ignores it)
- * </p>
- *
- * @param parameterIndex the first parameter is 1, etc...
- * @param sqlType the SQL type code defined in java.sql.Types
- *
- * @throws SQLException if a database access error occurs
- */
- public void setNull(int parameterIndex, int sqlType)
- throws SQLException {
- setInternal(parameterIndex, "null");
- isNull[parameterIndex - 1] = true;
- }
- //--------------------------JDBC 2.0-----------------------------
- /**
- * Set a parameter to SQL NULL.
- *
- * <P>
- * <B>Note:</B> You must specify the parameter's SQL type.
- * </p>
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param sqlType SQL type code defined by java.sql.Types
- * @param arg argument parameters for null
- *
- * @throws SQLException if a database-access error occurs.
- */
- public void setNull(int parameterIndex, int sqlType, String arg)
- throws SQLException {
- setNull(parameterIndex, sqlType);
- }
- /**
- * Set the value of a parameter using an object; use the java.lang
- * equivalent objects for integral values.
- *
- * <P>
- * The given Java object will be converted to the targetSqlType before
- * being sent to the database.
- * </p>
- *
- * <P>
- * note that this method may be used to pass database-specific abstract
- * data types. This is done by using a Driver-specific Java type and
- * using a targetSqlType of java.sql.Types.OTHER
- * </p>
- *
- * @param parameterIndex the first parameter is 1...
- * @param parameterObj the object containing the input parameter value
- * @param targetSqlType The SQL type to be send to the database
- * @param scale For java.sql.Types.DECIMAL or java.sql.Types.NUMERIC types
- * this is the number of digits after the decimal. For all other
- * types this value will be ignored.
- *
- * @throws SQLException if a database access error occurs
- * @throws java.sql.SQLException DOCUMENT ME!
- */
- public void setObject(int parameterIndex, Object parameterObj,
- int targetSqlType, int scale) throws SQLException {
- if (parameterObj == null) {
- setNull(parameterIndex, java.sql.Types.OTHER);
- } else {
- try {
- switch (targetSqlType) {
- case Types.BIT:
- case Types.TINYINT:
- case Types.SMALLINT:
- case Types.INTEGER:
- case Types.BIGINT:
- case Types.REAL:
- case Types.FLOAT:
- case Types.DOUBLE:
- case Types.DECIMAL:
- case Types.NUMERIC:
- Number parameterAsNum;
- if (parameterObj instanceof Boolean) {
- parameterAsNum = ((Boolean) parameterObj).booleanValue()
- ? new Integer(1) : new Integer(0);
- } else if (parameterObj instanceof String) {
- switch (targetSqlType) {
- case Types.BIT:
- parameterAsNum = (Boolean.getBoolean((String) parameterObj)
- ? new Integer("1") : new Integer("0"));
- break;
- case Types.TINYINT:
- case Types.SMALLINT:
- case Types.INTEGER:
- parameterAsNum = Integer.valueOf((String) parameterObj);
- break;
- case Types.BIGINT:
- parameterAsNum = Long.valueOf((String) parameterObj);
- break;
- case Types.REAL:
- parameterAsNum = Float.valueOf((String) parameterObj);
- break;
- case Types.FLOAT:
- case Types.DOUBLE:
- parameterAsNum = Double.valueOf((String) parameterObj);
- break;
- case Types.DECIMAL:
- case Types.NUMERIC:default:
- parameterAsNum = new java.math.BigDecimal((String) parameterObj);
- }
- } else {
- parameterAsNum = (Number) parameterObj;
- }
- switch (targetSqlType) {
- case Types.BIT:
- case Types.TINYINT:
- case Types.SMALLINT:
- case Types.INTEGER:
- setInt(parameterIndex, parameterAsNum.intValue());
- break;
- case Types.BIGINT:
- setLong(parameterIndex, parameterAsNum.longValue());
- break;
- case Types.REAL:
- setFloat(parameterIndex, parameterAsNum.floatValue());
- break;
- case Types.FLOAT:
- case Types.DOUBLE:
- setDouble(parameterIndex, parameterAsNum.doubleValue());
- break;
- case Types.DECIMAL:
- case Types.NUMERIC:default:
- if (parameterAsNum instanceof java.math.BigDecimal) {
- setBigDecimal(parameterIndex,
- (java.math.BigDecimal) parameterAsNum);
- } else if (parameterAsNum instanceof java.math.BigInteger) {
- setBigDecimal(parameterIndex,
- new java.math.BigDecimal(
- (java.math.BigInteger) parameterAsNum, scale));
- } else {
- setBigDecimal(parameterIndex,
- new java.math.BigDecimal(
- parameterAsNum.doubleValue()));
- }
- break;
- }
- break;
- case Types.CHAR:
- case Types.VARCHAR:
- case Types.LONGVARCHAR:
- setString(parameterIndex, parameterObj.toString());
- break;
- case Types.CLOB:
- if (parameterObj instanceof java.sql.Clob) {
- setClob(parameterIndex, (java.sql.Clob) parameterObj);
- } else {
- setString(parameterIndex, parameterObj.toString());
- }
- break;
- case Types.BINARY:
- case Types.VARBINARY:
- case Types.LONGVARBINARY:
- case Types.BLOB:
- if (parameterObj instanceof byte[]) {
- setBytes(parameterIndex, (byte[]) parameterObj);
- } else if (parameterObj instanceof java.sql.Blob) {
- setBlob(parameterIndex, (java.sql.Blob) parameterObj);
- } else {
- setBytes(parameterIndex,
- StringUtils.getBytes(parameterObj.toString(),
- this.charConverter, this.charEncoding));
- }
- break;
- case Types.DATE:
- case Types.TIMESTAMP:
- java.util.Date parameterAsDate;
- if (parameterObj instanceof String) {
- ParsePosition pp = new ParsePosition(0);
- java.text.DateFormat sdf = new java.text.SimpleDateFormat(getDateTimePattern(
- (String) parameterObj, false));
- parameterAsDate = sdf.parse((String) parameterObj, pp);
- } else {
- parameterAsDate = (java.util.Date) parameterObj;
- }
- switch (targetSqlType) {
- case Types.DATE:
- if (parameterAsDate instanceof java.sql.Date) {
- setDate(parameterIndex,
- (java.sql.Date) parameterAsDate);
- } else {
- setDate(parameterIndex,
- new java.sql.Date(parameterAsDate.getTime()));
- }
- break;
- case Types.TIMESTAMP:
- if (parameterAsDate instanceof java.sql.Timestamp) {
- setTimestamp(parameterIndex,
- (java.sql.Timestamp) parameterAsDate);
- } else {
- setTimestamp(parameterIndex,
- new java.sql.Timestamp(
- parameterAsDate.getTime()));
- }
- break;
- }
- break;
- case Types.TIME:
- if (parameterObj instanceof String) {
- java.text.DateFormat sdf = new java.text.SimpleDateFormat(getDateTimePattern(
- (String) parameterObj, true));
- setTime(parameterIndex,
- new java.sql.Time(sdf.parse((String) parameterObj)
- .getTime()));
- } else if (parameterObj instanceof Timestamp) {
- Timestamp xT = (Timestamp) parameterObj;
- setTime(parameterIndex, new java.sql.Time(xT.getTime()));
- } else {
- setTime(parameterIndex, (java.sql.Time) parameterObj);
- }
- break;
- case Types.OTHER:
- setSerializableObject(parameterIndex, parameterObj);
- break;
- default:
- throw new java.sql.SQLException("Unknown Types value",
- SQLError.SQL_STATE_GENERAL_ERROR);
- }
- } catch (Exception ex) {
- if (ex instanceof java.sql.SQLException) {
- throw (java.sql.SQLException) ex;
- } else {
- throw new java.sql.SQLException("Cannot convert "
- + parameterObj.getClass().toString()
- + " to SQL type requested due to "
- + ex.getClass().getName() + " - " + ex.getMessage(),
- SQLError.SQL_STATE_GENERAL_ERROR);
- }
- }
- }
- }
- /**
- * Set the value of a parameter using an object; use the java.lang
- * equivalent objects for integral values.
- *
- * @param parameterIndex the first parameter is 1...
- * @param parameterObj the object containing the input parameter value
- * @param targetSqlType The SQL type to be send to the database
- *
- * @throws SQLException if an error occurs
- */
- public void setObject(int parameterIndex, Object parameterObj,
- int targetSqlType) throws SQLException {
- setObject(parameterIndex, parameterObj, targetSqlType, 0);
- }
- /**
- * Sets the given parameter to the given object.
- *
- * @param parameterIndex the parameter to set.
- * @param parameterObj the object to use as a value for the parameter.
- *
- * @throws SQLException if an error occurs.
- */
- public void setObject(int parameterIndex, Object parameterObj)
- throws SQLException {
- if (parameterObj == null) {
- setNull(parameterIndex, java.sql.Types.OTHER);
- } else {
- if (parameterObj instanceof Byte) {
- setInt(parameterIndex, ((Byte) parameterObj).intValue());
- } else if (parameterObj instanceof String) {
- setString(parameterIndex, (String) parameterObj);
- } else if (parameterObj instanceof BigDecimal) {
- setBigDecimal(parameterIndex, (BigDecimal) parameterObj);
- } else if (parameterObj instanceof Short) {
- setShort(parameterIndex, ((Short) parameterObj).shortValue());
- } else if (parameterObj instanceof Integer) {
- setInt(parameterIndex, ((Integer) parameterObj).intValue());
- } else if (parameterObj instanceof Long) {
- setLong(parameterIndex, ((Long) parameterObj).longValue());
- } else if (parameterObj instanceof Float) {
- setFloat(parameterIndex, ((Float) parameterObj).floatValue());
- } else if (parameterObj instanceof Double) {
- setDouble(parameterIndex, ((Double) parameterObj).doubleValue());
- } else if (parameterObj instanceof byte[]) {
- setBytes(parameterIndex, (byte[]) parameterObj);
- } else if (parameterObj instanceof java.sql.Date) {
- setDate(parameterIndex, (java.sql.Date) parameterObj);
- } else if (parameterObj instanceof Time) {
- setTime(parameterIndex, (Time) parameterObj);
- } else if (parameterObj instanceof Timestamp) {
- setTimestamp(parameterIndex, (Timestamp) parameterObj);
- } else if (parameterObj instanceof Boolean) {
- setBoolean(parameterIndex,
- ((Boolean) parameterObj).booleanValue());
- } else if (parameterObj instanceof InputStream) {
- setBinaryStream(parameterIndex, (InputStream) parameterObj, -1);
- } else if (parameterObj instanceof java.sql.Blob) {
- setBlob(parameterIndex, (java.sql.Blob) parameterObj);
- } else if (parameterObj instanceof java.sql.Clob) {
- setClob(parameterIndex, (java.sql.Clob) parameterObj);
- } else {
- setSerializableObject(parameterIndex, parameterObj);
- }
- }
- }
- /**
- * @see PreparedStatement#getParameterMetaData()
- */
- public ParameterMetaData getParameterMetaData() throws SQLException {
- throw new NotImplemented();
- }
- /**
- * JDBC 2.0 Set a REF(<structured-type>) parameter.
- *
- * @param i the first parameter is 1, the second is 2, ...
- * @param x an object representing data of an SQL REF Type
- *
- * @throws SQLException if a database error occurs
- * @throws NotImplemented DOCUMENT ME!
- */
- public void setRef(int i, Ref x) throws SQLException {
- throw new NotImplemented();
- }
- /**
- * Set a parameter to a Java short value. The driver converts this to a
- * SQL SMALLINT value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setShort(int parameterIndex, short x) throws SQLException {
- setInternal(parameterIndex, String.valueOf(x));
- }
- /**
- * Set a parameter to a Java String value. The driver converts this to a
- * SQL VARCHAR or LONGVARCHAR value (depending on the arguments size
- * relative to the driver's limits on VARCHARs) when it sends it to the
- * database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database error occurs.
- */
- public void setString(int parameterIndex, String x)
- throws SQLException {
- // if the passed string is null, then set this column to null
- if (x == null) {
- try {
- setInternal(parameterIndex,
- StringUtils.getBytes("null", this.charConverter,
- this.charEncoding));
- } catch (UnsupportedEncodingException uue) {
- throw new SQLException("Unsupported character encoding '"
- + this.charEncoding + "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- } else {
- StringBuffer buf = new StringBuffer((int) (x.length() * 1.1));
- buf.append(''');
- int stringLength = x.length();
- for (int i = 0; i < stringLength; ++i) {
- char c = x.charAt(i);
- switch (c) {
- case 0: /* Must be escaped for 'mysql' */
- buf.append('\');
- buf.append('0');
- break;
- case 'n': /* Must be escaped for logs */
- buf.append('\');
- buf.append('n');
- break;
- case 'r':
- buf.append('\');
- buf.append('r');
- break;
- case '\':
- buf.append('\');
- buf.append('\');
- break;
- case ''':
- buf.append('\');
- buf.append(''');
- break;
- case '"': /* Better safe than sorry */
- buf.append('\');
- buf.append('"');
- break;
- case ' 32': /* This gives problems on Win32 */
- buf.append('\');
- buf.append('Z');
- break;
- default:
- buf.append(c);
- }
- }
- buf.append(''');
- String parameterAsString = buf.toString();
- try {
- byte[] parameterAsBytes = null;
- if (!this.isLoadDataQuery) {
- parameterAsBytes = StringUtils.getBytes(parameterAsString,
- this.charConverter, this.charEncoding);
- } else {
- // Send with platform character encoding
- parameterAsBytes = parameterAsString.getBytes();
- }
- setInternal(parameterIndex, parameterAsBytes);
- } catch (UnsupportedEncodingException uue) {
- throw new SQLException("Unsupported character encoding '"
- + this.charEncoding + "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- }
- }
- /**
- * Set a parameter to a java.sql.Time value. The driver converts this to a
- * SQL TIME value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...));
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setTime(int parameterIndex, Time x) throws SQLException {
- setTimeInternal(parameterIndex, x, this.connection.getDefaultTimeZone());
- }
- /**
- * Set a parameter to a java.sql.Time value. The driver converts this to a
- * SQL TIME value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param x the parameter value
- * @param cal the cal specifying the timezone
- *
- * @throws SQLException if a database-access error occurs.
- */
- public void setTime(int parameterIndex, java.sql.Time x, Calendar cal)
- throws SQLException {
- setTimeInternal(parameterIndex, x, cal.getTimeZone());
- }
- /**
- * Set a parameter to a java.sql.Timestamp value. The driver converts this
- * to a SQL TIMESTAMP value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- *
- * @throws SQLException if a database access error occurs
- */
- public void setTimestamp(int parameterIndex, Timestamp x)
- throws SQLException {
- setTimestampInternal(parameterIndex, x, this.connection.getDefaultTimeZone());
- }
- /**
- * Set a parameter to a java.sql.Timestamp value. The driver converts this
- * to a SQL TIMESTAMP value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param x the parameter value
- * @param cal the calendar specifying the timezone to use
- *
- * @throws SQLException if a database-access error occurs.
- */
- public void setTimestamp(int parameterIndex, java.sql.Timestamp x,
- Calendar cal) throws SQLException {
- setTimestampInternal(parameterIndex, x, cal.getTimeZone());
- }
- /**
- * @see PreparedStatement#setURL(int, URL)
- */
- public void setURL(int parameterIndex, URL arg) throws SQLException {
- if (arg != null) {
- setString(parameterIndex, arg.toString());
- } else {
- setNull(parameterIndex, Types.CHAR);
- }
- }
- /**
- * When a very large Unicode value is input to a LONGVARCHAR parameter, it
- * may be more practical to send it via a java.io.InputStream. JDBC will
- * read the data from the stream as needed, until it reaches end-of-file.
- * The JDBC driver will do any necessary conversion from UNICODE to the
- * database char format.
- *
- * <P>
- * <B>Note:</B> This stream object can either be a standard Java stream
- * object or your own subclass that implements the standard interface.
- * </p>
- *
- * @param parameterIndex the first parameter is 1...
- * @param x the parameter value
- * @param length the number of bytes to read from the stream
- *
- * @throws SQLException if a database access error occurs
- *
- * @deprecated
- */
- public void setUnicodeStream(int parameterIndex, InputStream x, int length)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.VARCHAR);
- } else {
- setBinaryStream(parameterIndex, x, length);
- }
- }
- /**
- * JDBC 2.0 Add a set of parameters to the batch.
- *
- * @throws SQLException if a database-access error occurs.
- *
- * @see Statement#addBatch
- */
- public void addBatch() throws SQLException {
- if (batchedArgs == null) {
- batchedArgs = new ArrayList();
- }
- batchedArgs.add(new BatchParams(parameterValues, parameterStreams,
- isStream, streamLengths, isNull));
- }
- /**
- * In general, parameter values remain in force for repeated used of a
- * Statement. Setting a parameter value automatically clears its previous
- * value. However, in some cases, it is useful to immediately release the
- * resources used by the current parameter values; this can be done by
- * calling clearParameters
- *
- * @throws SQLException if a database access error occurs
- */
- public void clearParameters() throws SQLException {
- for (int i = 0; i < parameterValues.length; i++) {
- parameterValues[i] = null;
- parameterStreams[i] = null;
- isStream[i] = false;
- isNull[i] = false;
- }
- }
- /**
- * Closes this prepared statement and releases all resources.
- *
- * @throws SQLException if database error occurs.
- */
- public void close() throws SQLException {
- super.close();
- this.parseInfo = null;
- this.dbmd = null;
- this.originalSql = null;
- this.staticSqlStrings = null;
- this.parameterValues = null;
- this.parameterStreams = null;
- this.isStream = null;
- this.streamLengths = null;
- this.isNull = null;
- this.streamConvertBuf = null;
- }
- /**
- * Some prepared statements return multiple results; the execute method
- * handles these complex statements as well as the simpler form of
- * statements handled by executeQuery and executeUpdate
- *
- * @return true if the next result is a ResultSet; false if it is an update
- * count or there are no more results
- *
- * @throws SQLException if a database error occurs.
- */
- public boolean execute() throws SQLException {
- if (connection.isReadOnly() && (firstCharOfStmt != 'S')) {
- throw new SQLException("Connection is read-only. "
- + "Queries leading to data modification are not allowed",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- checkClosed();
- ResultSet rs = null;
- synchronized (connection.getMutex()) {
- Buffer sendPacket = fillSendPacket();
- String oldCatalog = null;
- if (!this.connection.getCatalog().equals(currentCatalog)) {
- oldCatalog = this.connection.getCatalog();
- this.connection.setCatalog(currentCatalog);
- }
- boolean oldInfoMsgState = false;
- if (this.retrieveGeneratedKeys) {
- oldInfoMsgState = this.connection.isReadInfoMsgEnabled();
- this.connection.setReadInfoMsgEnabled(true);
- }
- // If there isn't a limit clause in the SQL
- // then limit the number of rows to return in
- // an efficient manner. Only do this if
- // setMaxRows() hasn't been used on any Statements
- // generated from the current Connection (saves
- // a query, and network traffic).
- //
- // Only apply max_rows to selects
- //
- if (this.connection.useMaxRows()) {
- if (firstCharOfStmt == 'S') {
- if (hasLimitClause) {
- rs = this.connection.execSQL((String) null, maxRows,
- sendPacket, resultSetConcurrency,
- createStreamingResultSet(), true,
- this.currentCatalog);
- } else {
- if (maxRows <= 0) {
- this.connection.execSQL("SET OPTION SQL_SELECT_LIMIT=DEFAULT",
- -1, this.currentCatalog);
- } else {
- this.connection.execSQL(
- "SET OPTION SQL_SELECT_LIMIT=" + maxRows, -1,
- this.currentCatalog);
- }
- }
- } else {
- this.connection.execSQL("SET OPTION SQL_SELECT_LIMIT=DEFAULT",
- -1, this.currentCatalog);
- }
- // Finally, execute the query
- rs = this.connection.execSQL(null, -1, sendPacket,
- resultSetConcurrency, createStreamingResultSet(),
- (firstCharOfStmt == 'S'), this.currentCatalog);
- } else {
- rs = this.connection.execSQL(null, -1, sendPacket,
- resultSetConcurrency, createStreamingResultSet(),
- (firstCharOfStmt == 'S'), this.currentCatalog);
- }
- if (this.retrieveGeneratedKeys) {
- this.connection.setReadInfoMsgEnabled(oldInfoMsgState);
- }
- if (oldCatalog != null) {
- this.connection.setCatalog(oldCatalog);
- }
- }
- lastInsertId = rs.getUpdateID();
- if (rs != null) {
- this.results = rs;
- }
- rs.setFirstCharOfQuery(this.firstCharOfStmt);
- rs.setConnection(connection);
- rs.setResultSetType(resultSetType);
- rs.setResultSetConcurrency(resultSetConcurrency);
- rs.setStatement(this);
- return ((rs != null) && rs.reallyResult());
- }
- /**
- * JDBC 2.0 Submit a batch of commands to the database for execution. This
- * method is optional.
- *
- * @return an array of update counts containing one element for each
- * command in the batch. The array is ordered according to the
- * order in which commands were inserted into the batch
- *
- * @throws SQLException if a database-access error occurs, or the driver
- * does not support batch statements
- * @throws java.sql.BatchUpdateException DOCUMENT ME!
- */
- public int[] executeBatch() throws SQLException {
- if (connection.isReadOnly()) {
- throw new SQLException("Connection is read-only. "
- + "Queries leading to data modification are not allowed",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- try {
- int[] updateCounts = null;
- if (batchedArgs != null) {
- int nbrCommands = batchedArgs.size();
- updateCounts = new int[nbrCommands];
- for (int i = 0; i < nbrCommands; i++) {
- updateCounts[i] = -3;
- }
- SQLException sqlEx = null;
- int commandIndex = 0;
- for (commandIndex = 0; commandIndex < nbrCommands;
- commandIndex++) {
- Object arg = batchedArgs.get(commandIndex);
- if (arg instanceof String) {
- updateCounts[commandIndex] = executeUpdate((String) arg);
- } else {
- BatchParams paramArg = (BatchParams) arg;
- try {
- updateCounts[commandIndex] = executeUpdate(paramArg.parameterStrings,
- paramArg.parameterStreams,
- paramArg.isStream, paramArg.streamLengths,
- paramArg.isNull);
- } catch (SQLException ex) {
- updateCounts[commandIndex] = EXECUTE_FAILED;
- if (this.connection.continueBatchOnError()) {
- sqlEx = ex;
- } else {
- int[] newUpdateCounts = new int[commandIndex];
- System.arraycopy(updateCounts, 0,
- newUpdateCounts, 0, commandIndex);
- throw new java.sql.BatchUpdateException(ex
- .getMessage(), ex.getSQLState(),
- ex.getErrorCode(), newUpdateCounts);
- }
- }
- }
- }
- if (sqlEx != null) {
- throw new java.sql.BatchUpdateException(sqlEx.getMessage(),
- sqlEx.getSQLState(), sqlEx.getErrorCode(), updateCounts);
- }
- }
- return (updateCounts != null) ? updateCounts : new int[0];
- } finally {
- clearBatch();
- }
- }
- /**
- * A Prepared SQL query is executed and its ResultSet is returned
- *
- * @return a ResultSet that contains the data produced by the query - never
- * null
- *
- * @throws SQLException if a database error occurs.
- */
- public synchronized java.sql.ResultSet executeQuery()
- throws SQLException {
- checkClosed();
- if ((this.firstCharOfStmt == 'I') || (this.firstCharOfStmt == 'U')
- || (this.firstCharOfStmt == 'D')
- || (this.firstCharOfStmt == 'A')
- || (this.firstCharOfStmt == 'C')) {
- if (StringUtils.startsWithIgnoreCaseAndWs(this.originalSql, "INSERT")
- || StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "UPDATE")
- || StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "DELETE")
- || StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "DROP")
- || StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "CREATE")
- || StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "ALTER")) {
- throw new SQLException("Can not issue data manipulation statements with executeQuery()",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- }
- // We need to execute this all together
- // So synchronize on the Connection's mutex (because
- // even queries going through there synchronize
- // on the same mutex.
- synchronized (connection.getMutex()) {
- Buffer sendPacket = fillSendPacket();
- if (this.results != null) {
- this.results.close();
- }
- String oldCatalog = null;
- if (!this.connection.getCatalog().equals(currentCatalog)) {
- oldCatalog = this.connection.getCatalog();
- this.connection.setCatalog(currentCatalog);
- }
- if (this.connection.useMaxRows()) {
- // If there isn't a limit clause in the SQL
- // then limit the number of rows to return in
- // an efficient manner. Only do this if
- // setMaxRows() hasn't been used on any Statements
- // generated from the current Connection (saves
- // a query, and network traffic).
- if (hasLimitClause) {
- results = this.connection.execSQL((String) null, maxRows,
- sendPacket, resultSetConcurrency,
- createStreamingResultSet(), true,
- this.currentCatalog);
- } else {
- if (maxRows <= 0) {
- this.connection.execSQL("SET OPTION SQL_SELECT_LIMIT=DEFAULT",
- -1, this.currentCatalog);
- } else {
- this.connection.execSQL("SET OPTION SQL_SELECT_LIMIT="
- + maxRows, -1, this.currentCatalog);
- }
- this.results = this.connection.execSQL(null, -1,
- sendPacket, resultSetConcurrency,
- createStreamingResultSet(), true,
- this.currentCatalog);
- if (oldCatalog != null) {
- this.connection.setCatalog(oldCatalog);
- }
- }
- } else {
- this.results = this.connection.execSQL(null, -1, sendPacket,
- resultSetConcurrency, createStreamingResultSet(), true,
- this.currentCatalog);
- }
- if (oldCatalog != null) {
- this.connection.setCatalog(oldCatalog);
- }
- }
- lastInsertId = this.results.getUpdateID();
- nextResults = this.results;
- this.results.setConnection(connection);
- this.results.setResultSetType(resultSetType);
- this.results.setResultSetConcurrency(resultSetConcurrency);
- this.results.setStatement(this);
- return (java.sql.ResultSet) this.results;
- }
- /**
- * Execute a SQL INSERT, UPDATE or DELETE statement. In addition, SQL
- * statements that return nothing such as SQL DDL statements can be
- * executed.
- *
- * @return either the row count for INSERT, UPDATE or DELETE; or 0 for SQL
- * statements that return nothing.
- *
- * @throws SQLException if a database access error occurs
- */
- public synchronized int executeUpdate() throws SQLException {
- return executeUpdate(parameterValues, parameterStreams, isStream,
- streamLengths, isNull);
- }
- /**
- * Returns this PreparedStatement represented as a string.
- *
- * @return this PreparedStatement represented as a string.
- *
- * @throws RuntimeException if an error occurs
- */
- public String toString() {
- StringBuffer buf = new StringBuffer();
- buf.append(super.toString());
- buf.append(": ");
- try {
- for (int i = 0; i < parameterValues.length; ++i) {
- if (this.charEncoding != null) {
- buf.append(new String(staticSqlStrings[i], this.charEncoding));
- } else {
- buf.append(new String(staticSqlStrings[i]));
- }
- if ((parameterValues[i] == null) && !isStream[i]) {
- buf.append("** NOT SPECIFIED **");
- } else if (isStream[i]) {
- buf.append("** STREAM DATA **");
- } else {
- if (this.charConverter != null) {
- buf.append(this.charConverter.toString(
- parameterValues[i]));
- } else {
- if (this.charEncoding != null) {
- buf.append(new String(parameterValues[i],
- this.charEncoding));
- } else {
- buf.append(StringUtils.toAsciiString(
- parameterValues[i]));
- }
- }
- }
- }
- if (this.charEncoding != null) {
- buf.append(new String(
- staticSqlStrings[parameterValues.length],
- this.charEncoding));
- } else {
- buf.append(staticSqlStrings[parameterValues.length]);
- }
- } catch (UnsupportedEncodingException uue) {
- throw new RuntimeException("Unsupported character encoding '"
- + this.charEncoding + "'");
- }
- return buf.toString();
- }
- /**
- * Used by updatable result sets for refreshRow() because the parameter has
- * already been escaped for updater or inserter prepared statements.
- *
- * @param parameterIndex the parameter to set.
- * @param parameterAsBytes the parameter as a string.
- *
- * @throws SQLException if an error occurs
- */
- protected void setBytesNoEscape(int parameterIndex, byte[] parameterAsBytes)
- throws SQLException {
- byte[] parameterWithQuotes = new byte[parameterAsBytes.length + 2];
- parameterWithQuotes[0] = ''';
- System.arraycopy(parameterAsBytes, 0, parameterWithQuotes, 1,
- parameterAsBytes.length);
- parameterWithQuotes[parameterAsBytes.length + 1] = ''';
- setInternal(parameterIndex, parameterWithQuotes);
- }
- /**
- * Sets wheather or not this statement should retreive generated keys.
- *
- * @param retrieveGeneratedKeys
- */
- protected void setRetrieveGeneratedKeys(boolean retrieveGeneratedKeys) {
- this.retrieveGeneratedKeys = retrieveGeneratedKeys;
- }
- /**
- * Added to allow batch-updates
- *
- * @param batchedParameterStrings string values used in single statement
- * @param batchedParameterStreams stream values used in single statement
- * @param batchedIsStream flags for streams used in single statement
- * @param batchedStreamLengths lengths of streams to be read.
- * @param batchedIsNull flags for parameters that are null
- *
- * @return the update count
- *
- * @throws SQLException if a database error occurs
- * @throws java.sql.SQLException DOCUMENT ME!
- */
- protected synchronized int executeUpdate(byte[][] batchedParameterStrings,
- InputStream[] batchedParameterStreams, boolean[] batchedIsStream,
- int[] batchedStreamLengths, boolean[] batchedIsNull)
- throws SQLException {
- if (connection.isReadOnly()) {
- throw new SQLException("Connection is read-only. "
- + "Queries leading to data modification are not allowed",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- checkClosed();
- if ((this.firstCharOfStmt == 'S')
- && StringUtils.startsWithIgnoreCaseAndWs(this.originalSql,
- "SELECT")) {
- throw new java.sql.SQLException("Can not issue executeUpdate() for SELECTs",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- ResultSet rs = null;
- // The checking and changing of catalogs
- // must happen in sequence, so synchronize
- // on the same mutex that _conn is using
- synchronized (connection.getMutex()) {
- Buffer sendPacket = fillSendPacket(batchedParameterStrings,
- batchedParameterStreams, batchedIsStream,
- batchedStreamLengths);
- String oldCatalog = null;
- if (!this.connection.getCatalog().equals(currentCatalog)) {
- oldCatalog = this.connection.getCatalog();
- this.connection.setCatalog(currentCatalog);
- }
- //
- // Only apply max_rows to selects
- //
- if (this.connection.useMaxRows()) {
- this.connection.execSQL("SET OPTION SQL_SELECT_LIMIT=DEFAULT",
- -1, this.currentCatalog);
- }
- boolean oldInfoMsgState = false;
- if (this.retrieveGeneratedKeys) {
- oldInfoMsgState = this.connection.isReadInfoMsgEnabled();
- this.connection.setReadInfoMsgEnabled(true);
- }
- rs = this.connection.execSQL(null, -1, sendPacket,
- resultSetConcurrency, false, false, this.currentCatalog);
- if (this.retrieveGeneratedKeys) {
- this.connection.setReadInfoMsgEnabled(oldInfoMsgState);
- }
- if (oldCatalog != null) {
- this.connection.setCatalog(oldCatalog);
- }
- }
- this.results = rs;
- rs.setFirstCharOfQuery(this.firstCharOfStmt);
- updateCount = rs.getUpdateCount();
- int truncatedUpdateCount = 0;
- if (updateCount > Integer.MAX_VALUE) {
- truncatedUpdateCount = Integer.MAX_VALUE;
- } else {
- truncatedUpdateCount = (int) updateCount;
- }
- lastInsertId = rs.getUpdateID();
- this.results = rs;
- return truncatedUpdateCount;
- }
- byte[] getBytes(int parameterIndex) throws SQLException {
- if (isStream[parameterIndex]) {
- return streamToBytes(parameterStreams[parameterIndex], false,
- streamLengths[parameterIndex],
- this.connection.useStreamLengthsInPrepStmts());
- } else {
- byte[] parameterVal = parameterValues[parameterIndex];
- if (parameterVal == null) {
- return null;
- }
- if ((parameterVal[0] == ''')
- && (parameterVal[parameterVal.length - 1] == ''')) {
- byte[] valNoQuotes = new byte[parameterVal.length - 2];
- System.arraycopy(parameterVal, 1, valNoQuotes, 0,
- parameterVal.length - 2);
- return valNoQuotes;
- } else {
- return parameterVal;
- }
- }
- }
- boolean isNull(int paramIndex) {
- return isNull[paramIndex];
- }
- ParseInfo getParseInfo() {
- return this.parseInfo;
- }
- /**
- * Sets the concurrency for result sets generated by this statement
- *
- * @param concurrencyFlag the result set concurrency flag from the
- * ResultSet interface.
- */
- void setResultSetConcurrency(int concurrencyFlag) {
- resultSetConcurrency = concurrencyFlag;
- }
- /**
- * Sets the result set type for result sets generated by this statement
- *
- * @param typeFlag the result set type from the ResultSet interface
- */
- void setResultSetType(int typeFlag) {
- resultSetType = typeFlag;
- }
- private final String getDateTimePattern(String dt, boolean toTime)
- throws Exception {
- //
- // Special case
- //
- int dtLength = (dt != null) ? dt.length() : 0;
- if ((dtLength >= 8) && (dtLength <= 10)) {
- int dashCount = 0;
- boolean isDateOnly = true;
- for (int i = 0; i < dtLength; i++) {
- char c = dt.charAt(i);
- if (!Character.isDigit(c) && (c != '-')) {
- isDateOnly = false;
- break;
- }
- if (c == '-') {
- dashCount++;
- }
- }
- if (isDateOnly && (dashCount == 2)) {
- return "yyyy-MM-dd";
- }
- }
- //
- // Special case - time-only
- //
- boolean colonsOnly = true;
- for (int i = 0; i < dtLength; i++) {
- char c = dt.charAt(i);
- if (!Character.isDigit(c) && (c != ':')) {
- colonsOnly = false;
- break;
- }
- }
- if (colonsOnly) {
- return "HH:mm:ss";
- }
- int n;
- int z;
- int count;
- int maxvecs;
- char c;
- char separator;
- StringReader reader = new StringReader(dt + " ");
- ArrayList vec = new ArrayList();
- ArrayList vecRemovelist = new ArrayList();
- Object[] nv = new Object[3];
- Object[] v;
- nv[0] = new Character('y');
- nv[1] = new StringBuffer();
- nv[2] = new Integer(0);
- vec.add(nv);
- if (toTime) {
- nv = new Object[3];
- nv[0] = new Character('h');
- nv[1] = new StringBuffer();
- nv[2] = new Integer(0);
- vec.add(nv);
- }
- while ((z = reader.read()) != -1) {
- separator = (char) z;
- maxvecs = vec.size();
- for (count = 0; count < maxvecs; count++) {
- v = (Object[]) vec.get(count);
- n = ((Integer) v[2]).intValue();
- c = getSuccessor(((Character) v[0]).charValue(), n);
- if (!Character.isLetterOrDigit(separator)) {
- if ((c == ((Character) v[0]).charValue()) && (c != 'S')) {
- vecRemovelist.add(v);
- } else {
- ((StringBuffer) v[1]).append(separator);
- if ((c == 'X') || (c == 'Y')) {
- v[2] = new Integer(4);
- }
- }
- } else {
- if (c == 'X') {
- c = 'y';
- nv = new Object[3];
- nv[1] = (new StringBuffer(((StringBuffer) v[1])
- .toString())).append('M');
- nv[0] = new Character('M');
- nv[2] = new Integer(1);
- vec.add(nv);
- } else if (c == 'Y') {
- c = 'M';
- nv = new Object[3];
- nv[1] = (new StringBuffer(((StringBuffer) v[1])
- .toString())).append('d');
- nv[0] = new Character('d');
- nv[2] = new Integer(1);
- vec.add(nv);
- }
- ((StringBuffer) v[1]).append(c);
- if (c == ((Character) v[0]).charValue()) {
- v[2] = new Integer(n + 1);
- } else {
- v[0] = new Character(c);
- v[2] = new Integer(1);
- }
- }
- }
- int size = vecRemovelist.size();
- for (int i = 0; i < size; i++) {
- v = (Object[]) vecRemovelist.get(i);
- vec.remove(v);
- }
- vecRemovelist.clear();
- }
- int size = vec.size();
- for (int i = 0; i < size; i++) {
- v = (Object[]) vec.get(i);
- c = ((Character) v[0]).charValue();
- n = ((Integer) v[2]).intValue();
- boolean bk = getSuccessor(c, n) != c;
- boolean atEnd = (((c == 's') || (c == 'm')
- || ((c == 'h') && toTime)) && bk);
- boolean finishesAtDate = (bk && (c == 'd') && !toTime);
- boolean containsEnd = (((StringBuffer) v[1]).toString().indexOf('W') != -1);
- if ((!atEnd && !finishesAtDate) || (containsEnd)) {
- vecRemovelist.add(v);
- }
- }
- size = vecRemovelist.size();
- for (int i = 0; i < size; i++) {
- vec.remove(vecRemovelist.get(i));
- }
- vecRemovelist.clear();
- v = (Object[]) vec.get(0); //might throw exception
- StringBuffer format = (StringBuffer) v[1];
- format.setLength(format.length() - 1);
- return format.toString();
- }
- private final void setInternal(int paramIndex, byte[] val)
- throws SQLException {
- if (this.isClosed) {
- throw new SQLException("PreparedStatement has been closed. No further operations allowed.",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- if ((paramIndex < 1)) {
- throw new SQLException("Parameter index out of range ("
- + paramIndex + " < 1 ).", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- } else if (paramIndex >= staticSqlStrings.length) {
- throw new SQLException("Parameter index out of range ("
- + paramIndex + " > " + (staticSqlStrings.length - 1) + ").",
- SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- isStream[paramIndex - 1] = false;
- isNull[paramIndex - 1] = false;
- parameterStreams[paramIndex - 1] = null;
- parameterValues[paramIndex - 1] = val;
- }
- private final void setInternal(int paramIndex, String val)
- throws SQLException {
- byte[] parameterAsBytes = null;
- if (this.charConverter != null) {
- parameterAsBytes = this.charConverter.toBytes(val);
- } else {
- try {
- parameterAsBytes = StringUtils.getBytes(val,
- this.charConverter, this.charEncoding);
- } catch (UnsupportedEncodingException uEE) {
- throw new SQLException("Unsupported encoding '"
- + this.charEncoding + "'", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- }
- setInternal(paramIndex, parameterAsBytes);
- }
- /**
- * Sets the value for the placeholder as a serialized Java object (used by
- * various forms of setObject()
- *
- * @param parameterIndex DOCUMENT ME!
- * @param parameterObj DOCUMENT ME!
- *
- * @throws SQLException if a database error occurs.
- * @throws java.sql.SQLException DOCUMENT ME!
- */
- private final void setSerializableObject(int parameterIndex,
- Object parameterObj) throws SQLException {
- 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);
- } catch (Exception ex) {
- throw new java.sql.SQLException("Invalid argument value: "
- + ex.getClass().getName(), SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- }
- private final char getSuccessor(char c, int n) {
- return ((c == 'y') && (n == 2)) ? 'X'
- : (((c == 'y') && (n < 4)) ? 'y'
- : ((c == 'y')
- ? 'M'
- : (((c == 'M') && (n == 2)) ? 'Y'
- : (((c == 'M') && (n < 3)) ? 'M'
- : ((c == 'M')
- ? 'd'
- : (((c == 'd') && (n < 2)) ? 'd'
- : ((c == 'd') ? 'H'
- : (((c == 'H') && (n < 2))
- ? 'H'
- : ((c == 'H') ? 'm'
- : (((c == 'm') && (n < 2)) ? 'm'
- : ((c == 'm') ? 's'
- : (((c == 's')
- && (n < 2)) ? 's' : 'W'))))))))))));
- }
- /**
- * Set a parameter to a java.sql.Time value. The driver converts this to a
- * SQL TIME value when it sends it to the database, using the given
- * timezone.
- *
- * @param parameterIndex the first parameter is 1...));
- * @param x the parameter value
- * @param tz the timezone to use
- *
- * @throws SQLException if a database access error occurs
- */
- private void setTimeInternal(int parameterIndex, Time x, TimeZone tz)
- throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.TIME);
- } else {
- x = TimeUtil.changeTimezone(this.connection, x, tz,
- this.connection.getServerTimezone());
- setInternal(parameterIndex, "'" + x.toString() + "'");
- }
- }
- /**
- * Set a parameter to a java.sql.Timestamp value. The driver converts this
- * to a SQL TIMESTAMP value when it sends it to the database.
- *
- * @param parameterIndex the first parameter is 1, the second is 2, ...
- * @param x the parameter value
- * @param tz the timezone to use
- *
- * @throws SQLException if a database-access error occurs.
- */
- private synchronized void setTimestampInternal(int parameterIndex,
- Timestamp x, TimeZone tz) throws SQLException {
- if (x == null) {
- setNull(parameterIndex, java.sql.Types.TIMESTAMP);
- } else {
- String timestampString = null;
- x = TimeUtil.changeTimezone(this.connection, x, tz,
- this.connection.getServerTimezone());
- if (this.tsdf == null) {
- this.tsdf = new SimpleDateFormat("''yyyy-MM-dd HH:mm:ss''");
- }
- timestampString = this.tsdf.format(x);
- setInternal(parameterIndex, timestampString); // SimpleDateFormat is not thread-safe
- }
- }
- private final void escapeblockFast(byte[] buf,
- ByteArrayOutputStream bytesOut, int size) {
- int lastwritten = 0;
- for (int i = 0; i < size; i++) {
- byte b = buf[i];
- if (b == ' ') {
- //write stuff not yet written
- if (i > lastwritten) {
- bytesOut.write(buf, lastwritten, i - lastwritten);
- }
- //write escape
- bytesOut.write('\');
- bytesOut.write('0');
- lastwritten = i + 1;
- } else {
- if ((b == '\') || (b == ''') || (b == '"')) {
- //write stuff not yet written
- if (i > lastwritten) {
- bytesOut.write(buf, lastwritten, i - lastwritten);
- }
- //write escape
- bytesOut.write('\');
- lastwritten = i; //not i+1 as b wasn't written.
- }
- }
- }
- //write out remaining stuff from buffer
- if (lastwritten < size) {
- bytesOut.write(buf, lastwritten, size - lastwritten);
- }
- }
- private final void escapeblockFast(byte[] buf, Buffer packet, int size)
- throws SQLException {
- int lastwritten = 0;
- for (int i = 0; i < size; i++) {
- byte b = buf[i];
- if (b == ' ') {
- //write stuff not yet written
- if (i > lastwritten) {
- packet.writeBytesNoNull(buf, lastwritten, i - lastwritten);
- }
- //write escape
- packet.writeByte((byte) '\');
- packet.writeByte((byte) '0');
- lastwritten = i + 1;
- } else {
- if ((b == '\') || (b == ''') || (b == '"')) {
- //write stuff not yet written
- if (i > lastwritten) {
- packet.writeBytesNoNull(buf, lastwritten,
- i - lastwritten);
- }
- //write escape
- packet.writeByte((byte) '\');
- lastwritten = i; //not i+1 as b wasn't written.
- }
- }
- }
- //write out remaining stuff from buffer
- if (lastwritten < size) {
- packet.writeBytesNoNull(buf, lastwritten, size - lastwritten);
- }
- }
- /**
- * Creates the packet that contains the query to be sent to the server.
- *
- * @return the packet to send to the server to issue the query.
- *
- * @throws SQLException if a database error occurs.
- */
- private Buffer fillSendPacket() throws SQLException {
- return fillSendPacket(this.parameterValues, this.parameterStreams,
- this.isStream, this.streamLengths);
- }
- /**
- * Creates the packet that contains the query to be sent to the server.
- *
- * @param batchedParameterStrings DOCUMENT ME!
- * @param batchedParameterStreams DOCUMENT ME!
- * @param batchedIsStream DOCUMENT ME!
- * @param batchedStreamLengths DOCUMENT ME!
- *
- * @return DOCUMENT ME!
- *
- * @throws SQLException if a database error occurs.
- * @throws java.sql.SQLException DOCUMENT ME!
- */
- private Buffer fillSendPacket(byte[][] batchedParameterStrings,
- InputStream[] batchedParameterStreams, boolean[] batchedIsStream,
- int[] batchedStreamLengths) throws SQLException {
- Buffer sendPacket = this.connection.getIO().getSharedSendPacket();
- sendPacket.clear();
- sendPacket.writeByte((byte) MysqlDefs.QUERY);
- boolean useStreamLengths = this.connection.useStreamLengthsInPrepStmts();
- //
- // Try and get this allocation as close as possible
- // for BLOBs
- //
- int ensurePacketSize = 0;
- for (int i = 0; i < batchedParameterStrings.length; i++) {
- if (batchedIsStream[i] && useStreamLengths) {
- ensurePacketSize += batchedStreamLengths[i];
- }
- }
- if (ensurePacketSize != 0) {
- sendPacket.ensureCapacity(ensurePacketSize);
- }
- for (int i = 0; i < batchedParameterStrings.length; i++) {
- if ((batchedParameterStrings[i] == null)
- && (batchedParameterStreams[i] == null)) {
- throw new java.sql.SQLException(
- "No value specified for parameter " + (i + 1), SQLError.SQL_STATE_WRONG_NO_OF_PARAMETERS);
- }
- sendPacket.writeBytesNoNull(staticSqlStrings[i]);
- if (batchedIsStream[i]) {
- streamToBytes(sendPacket, batchedParameterStreams[i], true,
- batchedStreamLengths[i], useStreamLengths);
- } else {
- sendPacket.writeBytesNoNull(batchedParameterStrings[i]);
- }
- }
- sendPacket.writeBytesNoNull(staticSqlStrings[batchedParameterStrings.length]);
- return sendPacket;
- }
- //
- // Adds '+' to decimal numbers that are positive (MySQL doesn't
- // understand them otherwise
- //
- private static final String fixDecimalExponent(String dString) {
- int ePos = dString.indexOf("E");
- if (ePos == -1) {
- ePos = dString.indexOf("e");
- }
- if (ePos != -1) {
- if (dString.length() > (ePos + 1)) {
- char maybeMinusChar = dString.charAt(ePos + 1);
- if (maybeMinusChar != '-') {
- StringBuffer buf = new StringBuffer(dString.length() + 1);
- buf.append(dString.substring(0, ePos + 1));
- buf.append('+');
- buf.append(dString.substring(ePos + 1, dString.length()));
- dString = buf.toString();
- }
- }
- }
- return dString;
- }
- private void initializeFromParseInfo() throws SQLException {
- this.staticSqlStrings = this.parseInfo.staticSql;
- this.hasLimitClause = this.parseInfo.foundLimitClause;
- this.isLoadDataQuery = this.parseInfo.foundLoadData;
- this.firstCharOfStmt = this.parseInfo.firstStmtChar;
- int numberOfParameters = staticSqlStrings.length - 1;
- parameterValues = new byte[numberOfParameters][];
- parameterStreams = new InputStream[numberOfParameters];
- isStream = new boolean[numberOfParameters];
- streamLengths = new int[numberOfParameters];
- isNull = new boolean[numberOfParameters];
- clearParameters();
- for (int j = 0; j < numberOfParameters; j++) {
- isStream[j] = false;
- }
- }
- private final int readblock(InputStream i, byte[] b, int length)
- throws SQLException {
- try {
- int lengthToRead = length;
- if (lengthToRead > b.length) {
- lengthToRead = b.length;
- }
- return i.read(b, 0, lengthToRead);
- } catch (Throwable E) {
- throw new java.sql.SQLException("Error reading from InputStream "
- + E.getClass().getName(), SQLError.SQL_STATE_GENERAL_ERROR);
- }
- }
- private final int readblock(InputStream i, byte[] b)
- throws SQLException {
- try {
- return i.read(b);
- } catch (Throwable E) {
- throw new java.sql.SQLException("Error reading from InputStream "
- + E.getClass().getName(), SQLError.SQL_STATE_GENERAL_ERROR);
- }
- }
- /**
- * For the setXXXStream() methods. Basically converts an InputStream into a
- * String. Not very efficient, but it works.
- *
- * @param in DOCUMENT ME!
- * @param streamLength DOCUMENT ME!
- * @param useLength DOCUMENT ME!
- *
- * @return DOCUMENT ME!
- *
- * @throws SQLException DOCUMENT ME!
- */
- private final byte[] streamToBytes(InputStream in, int streamLength,
- boolean useLength) throws SQLException {
- return streamToBytes(in, true, streamLength, useLength);
- }
- private final byte[] streamToBytes(InputStream in, boolean escape,
- int streamLength, boolean useLength) throws SQLException {
- try {
- if (streamLength == -1) {
- useLength = false;
- }
- ByteArrayOutputStream bytesOut = new ByteArrayOutputStream();
- int bc = -1;
- if (useLength) {
- bc = readblock(in, streamConvertBuf, streamLength);
- } else {
- bc = readblock(in, streamConvertBuf);
- }
- int lengthLeftToRead = streamLength - bc;
- if (escape) {
- bytesOut.write(''');
- }
- while (bc > 0) {
- if (escape) {
- escapeblockFast(streamConvertBuf, bytesOut, bc);
- } else {
- bytesOut.write(streamConvertBuf, 0, bc);
- }
- if (useLength) {
- bc = readblock(in, streamConvertBuf, lengthLeftToRead);
- if (bc > 0) {
- lengthLeftToRead -= bc;
- }
- } else {
- bc = readblock(in, streamConvertBuf);
- }
- }
- if (escape) {
- bytesOut.write(''');
- }
- return bytesOut.toByteArray();
- } finally {
- try {
- in.close();
- } catch (IOException ioEx) {
- ;
- }
- in = null;
- }
- }
- private final void streamToBytes(Buffer packet, InputStream in,
- boolean escape, int streamLength, boolean useLength)
- throws SQLException {
- try {
- if (streamLength == -1) {
- useLength = false;
- }
- int bc = -1;
- if (useLength) {
- bc = readblock(in, streamConvertBuf, streamLength);
- } else {
- bc = readblock(in, streamConvertBuf);
- }
- int lengthLeftToRead = streamLength - bc;
- if (escape) {
- packet.writeByte((byte) ''');
- }
- while (bc > 0) {
- if (escape) {
- escapeblockFast(streamConvertBuf, packet, bc);
- } else {
- packet.writeBytesNoNull(streamConvertBuf, 0, bc);
- }
- if (useLength) {
- bc = readblock(in, streamConvertBuf, lengthLeftToRead);
- if (bc > 0) {
- lengthLeftToRead -= bc;
- }
- } else {
- bc = readblock(in, streamConvertBuf);
- }
- }
- if (escape) {
- packet.writeByte((byte) ''');
- }
- } finally {
- try {
- in.close();
- } catch (IOException ioEx) {
- ;
- }
- in = null;
- }
- }
- /**
- * Reads length bytes from reader into buf. Blocks until enough input is
- * available
- *
- * @param reader DOCUMENT ME!
- * @param buf DOCUMENT ME!
- * @param length DOCUMENT ME!
- *
- * @return DOCUMENT ME!
- *
- * @throws IOException DOCUMENT ME!
- */
- private static int readFully(Reader reader, char[] buf, int length)
- throws IOException {
- int numCharsRead = 0;
- while (numCharsRead < length) {
- int count = reader.read(buf, numCharsRead, length - numCharsRead);
- if (count < 0) {
- break;
- }
- numCharsRead += count;
- }
- return numCharsRead;
- }
- class BatchParams {
- boolean[] isNull = null;
- boolean[] isStream = null;
- InputStream[] parameterStreams = null;
- byte[][] parameterStrings = null;
- int[] streamLengths = null;
- BatchParams(byte[][] strings, InputStream[] streams,
- boolean[] isStreamFlags, int[] lengths, boolean[] isNullFlags) {
- //
- // Make copies
- //
- parameterStrings = new byte[strings.length][];
- parameterStreams = new InputStream[streams.length];
- isStream = new boolean[isStreamFlags.length];
- streamLengths = new int[lengths.length];
- isNull = new boolean[isNullFlags.length];
- System.arraycopy(strings, 0, parameterStrings, 0, strings.length);
- System.arraycopy(streams, 0, parameterStreams, 0, streams.length);
- System.arraycopy(isStreamFlags, 0, isStream, 0, isStreamFlags.length);
- System.arraycopy(lengths, 0, streamLengths, 0, lengths.length);
- System.arraycopy(isNullFlags, 0, isNull, 0, isNullFlags.length);
- }
- }
- class ParseInfo {
- byte[][] staticSql = null;
- boolean foundLimitClause = false;
- boolean foundLoadData = false;
- char firstStmtChar = 0;
- int statementLength = 0;
- long lastUsed = 0;
- /**
- *
- */
- public ParseInfo(String sql, Connection conn,
- java.sql.DatabaseMetaData dbmd, String encoding,
- SingleByteCharsetConverter converter) throws SQLException {
- if (sql == null) {
- throw new SQLException("SQL String can not be NULL", SQLError.SQL_STATE_ILLEGAL_ARGUMENT);
- }
- lastUsed = System.currentTimeMillis();
- String quotedIdentifierString = dbmd.getIdentifierQuoteString();
- char quotedIdentifierChar = 0;
- if ((quotedIdentifierString != null)
- && !quotedIdentifierString.equals(" ")
- && (quotedIdentifierString.length() > 0)) {
- quotedIdentifierChar = quotedIdentifierString.charAt(0);
- }
- statementLength = sql.length();
- ArrayList endpointList = new ArrayList();
- boolean inQuotes = false;
- boolean inQuotedId = false;
- int lastParmEnd = 0;
- int i;
- int pre1 = 0;
- int pre2 = 0;
- int lastAlphaCharPos = 0;
- int stopLookingForLimitClause = statementLength - 5;
- foundLimitClause = false;
- for (i = 0; i < statementLength; ++i) {
- char c = sql.charAt(i);
- if ((firstStmtChar == 0) && !Character.isWhitespace(c)) {
- // Determine what kind of statement we're doing (_S_elect, _I_nsert, etc.)
- firstStmtChar = Character.toUpperCase(c);
- }
- if (Character.isLetter(c)) {
- lastAlphaCharPos = i;
- }
- // are we in a quoted identifier?
- // (only valid when the id is not inside a 'string')
- if (!inQuotes && (quotedIdentifierChar != 0)
- && (c == quotedIdentifierChar)) {
- inQuotedId = !inQuotedId;
- }
- // only respect quotes when not in a quoted identifier
- if (!inQuotedId) {
- if ((c == ''') && (pre1 == '\') && (pre2 == '\')) {
- inQuotes = !inQuotes;
- } else if ((c == ''') && (pre1 != '\')) {
- inQuotes = !inQuotes;
- }
- }
- if ((c == '?') && !inQuotes) {
- endpointList.add(new int[] { lastParmEnd, i });
- lastParmEnd = i + 1;
- }
- if (!inQuotes && (i < stopLookingForLimitClause)) {
- if ((c == 'L') || (c == 'l')) {
- char posI1 = sql.charAt(i + 1);
- if ((posI1 == 'I') || (posI1 == 'i')) {
- char posM = sql.charAt(i + 2);
- if ((posM == 'M') || (posM == 'm')) {
- char posI2 = sql.charAt(i + 3);
- if ((posI2 == 'I') || (posI2 == 'i')) {
- char posT = sql.charAt(i + 4);
- if ((posT == 'T') || (posT == 't')) {
- foundLimitClause = true;
- }
- }
- }
- }
- }
- }
- pre2 = pre1;
- pre1 = c;
- }
- if (firstStmtChar == 'L') {
- if (StringUtils.startsWithIgnoreCaseAndWs(sql, "LOAD DATA")) {
- foundLoadData = true;
- } else {
- foundLoadData = false;
- }
- } else {
- foundLoadData = false;
- }
- endpointList.add(new int[] { lastParmEnd, statementLength });
- staticSql = new byte[endpointList.size()][];
- for (i = 0; i < staticSql.length; i++) {
- int[] ep = (int[]) endpointList.get(i);
- int end = ep[1];
- int begin = ep[0];
- int len = end - begin;
- if (foundLoadData) {
- String temp = new String(sql.toCharArray(), begin, len);
- staticSql[i] = temp.getBytes();
- } else if (encoding == null) {
- byte[] buf = new byte[len];
- for (int j = 0; j < len; j++) {
- buf[j] = (byte) sql.charAt(begin + j);
- }
- staticSql[i] = buf;
- } else {
- try {
- if (converter != null) {
- staticSql[i] = StringUtils.getBytes(sql, converter,
- encoding, begin, len);
- } else {
- String temp = new String(sql.toCharArray(), begin,
- len);
- staticSql[i] = StringUtils.getBytes(temp, null,
- encoding);
- }
- } catch (java.io.UnsupportedEncodingException ue) {
- throw new SQLException(ue.toString());
- }
- }
- }
- int numberOfParameters = staticSql.length - 1;
- }
- }
- }