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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: SQLChar.java
//
// The source code contained herein is licensed under the IBM Public License
// Version 1.0, which has been approved by the Open Source Initiative.
// Copyright (C) 1997-2006 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.access;
import java.io.CharConversionException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.sql.Blob;
import java.sql.Clob;
/* ifdef JDBC40
import java.sql.NClob;
import java.sql.RowId;
endif */
import java.sql.SQLException;
/* ifdef JDBC40
import java.sql.SQLXML;
endif */
import java.sql.Time;
import java.sql.Timestamp;
import java.util.Calendar;
import java.net.URL;
final class SQLChar
extends SQLDataBase
{
static final String copyright = "Copyright (C) 1997-2006 International Business Machines Corporation and others.";
// Private data.
private int maxLength_;
private String value_;
SQLChar(int maxLength, SQLConversionSettings settings)
{
super(settings);
maxLength_ = maxLength;
value_ = ""; // @C4C
}
public Object clone()
{
return new SQLChar(maxLength_,settings_);
}
//---------------------------------------------------------//
// //
// CONVERSION TO AND FROM RAW BYTES //
// //
//---------------------------------------------------------//
public void convertFromRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter, boolean ignoreConversionErrors)
throws SQLException
{
int bidiStringType = settings_.getBidiStringType();
// if bidiStringType is not set by user, use ccsid to get value
if(bidiStringType == -1)
bidiStringType = ccsidConverter.bidiStringType_;
BidiConversionProperties bidiConversionProperties = new BidiConversionProperties(bidiStringType); //@KBA
bidiConversionProperties.setBidiImplicitReordering(settings_.getBidiImplicitReordering()); //@KBA
bidiConversionProperties.setBidiNumericOrderingRoundTrip(settings_.getBidiNumericOrdering()); //@KBA
try{
value_ = ccsidConverter.byteArrayToString(rawBytes, offset, maxLength_, bidiConversionProperties); //@KBC bidiStringType);
}catch(Exception e){
JDError.throwSQLException(JDError.EXC_CHAR_CONVERSION_INVALID, e);
}
}
public void convertToRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter)
throws SQLException
{
int bidiStringType = settings_.getBidiStringType();
// if bidiStringType is not set by user, use ccsid to get value
if(bidiStringType == -1)
bidiStringType = ccsidConverter.bidiStringType_;
BidiConversionProperties bidiConversionProperties = new BidiConversionProperties(bidiStringType); //@KBA
bidiConversionProperties.setBidiImplicitReordering(settings_.getBidiImplicitReordering()); //@KBA
bidiConversionProperties.setBidiNumericOrderingRoundTrip(settings_.getBidiNumericOrdering()); //@KBA
try
{
//in cases of variable length chars, check for truncation after conversion
truncated_ = ccsidConverter.stringToByteArray(value_, rawBytes, offset, maxLength_, bidiConversionProperties); //@KBC bidiStringType); //@trnc
}
catch(CharConversionException e)
{
maxLength_ = ccsidConverter.stringToByteArray(value_, bidiConversionProperties).length; //@KBC changed to use bidiConversionProperties_ instead of bidiStringType
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e, "Change Descriptor");
}
}
// @X4A
public void validateRawTruncatedData(byte[] rawBytes, int offset, ConvTable ccsidConverter) {
if (ccsidConverter instanceof ConvTableMixedMap) {
ccsidConverter.validateData(rawBytes, offset, maxLength_ );
}
}
//---------------------------------------------------------//
// //
// SET METHODS //
// //
//---------------------------------------------------------//
public void set(Object object, Calendar calendar, int scale)
throws SQLException
{
String value = null; // @C2A
if(object instanceof String)
value = (String)object; // @C2C
else if(object instanceof Character)
value = object.toString();
else if(object instanceof Number)
value = object.toString(); // @C2C
else if(object instanceof Boolean)
{
// @PDC
// if "translate boolean" == false, then use "0" and "1" values to match native driver
if(settings_.getTranslateBoolean() == true)
value = object.toString(); //"true" or "false"
else
value = ((Boolean)object).booleanValue() == true ? "1" : "0";
}
else if(object instanceof Time)
value = SQLTime.timeToString((Time)object, settings_, calendar); // @C2C
else if(object instanceof Timestamp)
value = SQLTimestamp.timestampToStringTrimTrailingZeros((Timestamp)object, calendar, settings_); // @C2C
else if(object instanceof java.util.Date) // @F5M @F5C
value = SQLDate.dateToString((java.util.Date)object, settings_, calendar); // @C2C @F5C
else if(object instanceof URL)
value = object.toString();
else if(object instanceof Reader)
{
value = getStringFromReader((Reader) object, ALL_READER_BYTES, this);
}
else if( object instanceof Clob)
{
Clob clob = (Clob)object;
value = clob.getSubString(1, (int)clob.length());
}
// @C2C
/* ifdef JDBC40
else if(object instanceof SQLXML) //@PDA jdbc40
{
SQLXML xml = (SQLXML)object;
value = xml.getString();
}
endif */
if(value == null) // @C2C
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
value_ = value; // @C2A
// Set to the exact length.
int valueLength = value_.length();
int exactLength = getDisplaySize(); // @C1A
if(valueLength < exactLength) // @C1C
{
StringBuffer buffer = new StringBuffer(value_);
char c = '\u0020'; // @F66c - Pad with single byte space for now
for(int i = valueLength; i < exactLength; ++i) // @C1C
buffer.append(c); //@F6C
value_ = buffer.toString();
truncated_ = 0; outOfBounds_ = false;
}
else if(valueLength > exactLength)
{ // @C1C @F6C
value_ = value_.substring(0, exactLength); // @C1C
truncated_ = valueLength - exactLength; // @C1C
outOfBounds_ = false;
}
else
truncated_ = 0; outOfBounds_ = false;
}
//---------------------------------------------------------//
// //
// DESCRIPTION OF SQL TYPE //
// //
//---------------------------------------------------------//
public int getSQLType()
{
return SQLData.CHAR;
}
public String getCreateParameters()
{
return AS400JDBCDriver.getResource("MAXLENGTH",null);
}
public int getDisplaySize()
{
return maxLength_;
}
//@F1A JDBC 3.0
public String getJavaClassName()
{
return "java.lang.String";
}
public String getLiteralPrefix()
{
return "\'";
}
public String getLiteralSuffix()
{
return "\'";
}
public String getLocalName()
{
return "CHAR";
}
public int getMaximumPrecision()
{
return 32765;
}
public int getMaximumScale()
{
return 0;
}
public int getMinimumScale()
{
return 0;
}
public int getNativeType()
{
return 452;
}
public int getPrecision()
{
return maxLength_;
}
public int getRadix()
{
return 0;
}
public int getScale()
{
return 0;
}
public int getType()
{
return java.sql.Types.CHAR;
}
public String getTypeName()
{
return "CHAR";
}
public boolean isSigned()
{
return false;
}
public boolean isText()
{
return true;
}
public int getActualSize()
{
return value_.length();
}
public int getTruncated()
{
return truncated_;
}
public boolean getOutOfBounds() {
return outOfBounds_;
}
//---------------------------------------------------------//
// //
// CONVERSIONS TO JAVA TYPES //
// //
//---------------------------------------------------------//
public InputStream getBinaryStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
return new HexReaderInputStream(new StringReader(getString()));
}
public Blob getBlob()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
return new AS400JDBCBlob(BinaryConverter.stringToBytes(getString()), maxLength_);
}
catch(NumberFormatException nfe)
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
return null;
}
}
public byte getByte()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
//return(new Double(getString().trim())).byteValue(); //@trunc
Double doubleValue = new Double (value_.trim ()); //@trunc
double d = doubleValue.doubleValue(); //@trunc
if(d > Byte.MAX_VALUE || d < Byte.MIN_VALUE) { //@trunc
truncated_ = 1; //@trunc
outOfBounds_ = true;
}
return doubleValue.byteValue (); //@trunc
}
catch(NumberFormatException e)
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, e);
return -1;
}
}
public byte[] getBytes()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
try
{
return BinaryConverter.stringToBytes(getString());
}
catch(NumberFormatException nfe)
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
return null;
}
}
public Object getObject()
throws SQLException
{
// This is written in terms of getString(), since it will
// handle truncating to the max field size if needed.
return getString();
}
public String getString()
throws SQLException
{
// Truncate to the max field size if needed.
// Do not signal a DataTruncation per the spec. @B1A
int maxFieldSize = settings_.getMaxFieldSize();
if((value_.length() > maxFieldSize) && (maxFieldSize > 0))
{
// @B1D truncated_ = value_.length() - maxFieldSize;
return value_.substring(0, maxFieldSize);
}
else
{
// @B1D truncated_ = 0; outOfBounds_ = false;
return value_;
}
}
// @A1A
// Added method trim() to trim the string.
public void trim() // @A1A
{ // @A1A
value_ = value_.trim(); // @A1A
} // @A1A
//@pda jdbc40
/* ifdef JDBC40
endif */
//@pda jdbc40
public String getNString() throws SQLException
{
// Truncate to the max field size if needed.
// Do not signal a DataTruncation per the spec.
int maxFieldSize = settings_.getMaxFieldSize();
if((value_.length() > maxFieldSize) && (maxFieldSize > 0))
{
return value_.substring(0, maxFieldSize);
}
else
{
return value_;
}
}
//@pda jdbc40
/* ifdef JDBC40
public RowId getRowId() throws SQLException
{
//truncated_ = 0; outOfBounds_ = false;
//try
//{
// return new AS400JDBCRowId(BinaryConverter.stringToBytes(value_));
//}
//catch(NumberFormatException nfe)
//{
// this string contains non-hex characters
// JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
// return null;
//}
//decided this is of no use
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
endif */
//@pda jdbc40
/* ifdef JDBC40
public SQLXML getSQLXML() throws SQLException
{
//This is written in terms of getString(), since it will
// handle truncating to the max field size if needed.
truncated_ = 0; outOfBounds_ = false;
return new AS400JDBCSQLXML(getString());
}
endif */
// @array
public void saveValue() {
savedValue_ = value_;
}
}