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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: SQLVarbinary.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) 1997-2003 International Business Machines Corporation and
// others. All rights reserved.
//
///////////////////////////////////////////////////////////////////////////////
package com.ibm.as400.access;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.math.BigDecimal;
import java.sql.Blob;
import java.sql.Clob;
import java.sql.Date;
/* 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;
final class SQLVarbinary
extends SQLDataBase
{
static final String copyright = "Copyright (C) 1997-2003 International Business Machines Corporation and others.";
// Private data.
private static final byte[] default_ = new byte[0];
private int length_;
private int maxLength_;
private byte[] value_;
SQLVarbinary(int maxLength, SQLConversionSettings settings)
{
super(settings);
length_ = 0;
maxLength_ = maxLength;
value_ = default_;
}
public Object clone()
{
return new SQLVarbinary(maxLength_, settings_);
}
//---------------------------------------------------------//
// //
// CONVERSION TO AND FROM RAW BYTES //
// //
//---------------------------------------------------------//
public void convertFromRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter, boolean ignoreConversionErrors)
throws SQLException
{
length_ = BinaryConverter.byteArrayToUnsignedShort(rawBytes, offset);
AS400ByteArray typeConverter = new AS400ByteArray(length_);
value_ = (byte[])typeConverter.toObject(rawBytes, offset+2);
}
public void convertToRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter)
throws SQLException
{
AS400ByteArray typeConverter = new AS400ByteArray(length_);
BinaryConverter.unsignedShortToByteArray(length_, rawBytes, offset);
typeConverter.toBytes(value_, rawBytes, offset + 2);
}
//---------------------------------------------------------//
// //
// SET METHODS //
// //
//---------------------------------------------------------//
public void set(Object object, Calendar calendar, int scale)
throws SQLException
{
if(object instanceof String)
{
try
{
value_ = BinaryConverter.stringToBytes((String)object);
}
catch(NumberFormatException nfe)
{
// the String contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
}
}
else if(object instanceof byte[])
value_ = (byte[])object;
else if(object instanceof InputStream)
{
//value_ = JDUtilities.streamToBytes((InputStream)object, scale);
value_ = getBytesFromInputStream((InputStream)object, scale, this);
}
else if(object instanceof Reader)
{
// value_ = BinaryConverter.stringToBytes(JDUtilities.readerToString((Reader)object, scale));
value_ = getBytesFromReader((Reader) object, scale, this);
}
else if( object instanceof Blob)
value_ = ((Blob)object).getBytes(1, (int)((Blob)object).length());
else if( object instanceof Clob)
{
try
{
value_ = BinaryConverter.stringToBytes(((Clob)object).getSubString(1, (int)((Clob)object).length()));
}
catch(NumberFormatException nfe)
{
// the Clob contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
}
}
else
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
// Truncate if necessary.
int valueLength = value_.length;
if(valueLength > maxLength_)
{
byte[] newValue = new byte[maxLength_];
System.arraycopy(value_, 0, newValue, 0, maxLength_);
value_ = newValue;
truncated_ = valueLength - maxLength_;
outOfBounds_ = false;
}
else
truncated_ = 0; outOfBounds_ = false;
length_ = value_.length;
}
//---------------------------------------------------------//
// //
// DESCRIPTION OF SQL TYPE //
// //
//---------------------------------------------------------//
public int getSQLType()
{
return SQLData.VARBINARY;
}
public String getCreateParameters()
{
return AS400JDBCDriver.getResource("MAXLENGTH",null);
}
public int getDisplaySize()
{
return maxLength_ ;
}
public String getJavaClassName()
{
return "[B";
}
public String getLiteralPrefix()
{
return "VARBINARY(X\'"; //@5WXVJX changed from x'
}
public String getLiteralSuffix()
{
return "\')"; //@5WXVJX changed from '
}
public String getLocalName()
{
return "VARBINARY";
}
public int getMaximumPrecision()
{
return 32739;
}
public int getMaximumScale()
{
return 0;
}
public int getMinimumScale()
{
return 0;
}
public int getNativeType()
{
return 908;
}
public int getPrecision()
{
return maxLength_;
}
public int getRadix()
{
return 0;
}
public int getScale()
{
return 0;
}
public int getType()
{
return java.sql.Types.VARBINARY;
}
public String getTypeName()
{
return "VARBINARY";
}
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 BigDecimal getBigDecimal(int scale)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public InputStream getBinaryStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return new ByteArrayInputStream(getBytes());
}
public Blob getBlob()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
byte[] bytes = getBytes();
return new AS400JDBCBlob(bytes, bytes.length);
}
public boolean getBoolean()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return false;
}
public byte getByte()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public byte[] getBytes()
{
truncated_ = 0; outOfBounds_ = false;
// 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))
{
byte[] truncatedValue = new byte[maxFieldSize];
System.arraycopy(value_, 0, truncatedValue, 0, maxFieldSize);
return truncatedValue;
}
else
{
return value_;
}
}
public Reader getCharacterStream()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return new StringReader(BinaryConverter.bytesToHexString(getBytes()));
}
public Clob getClob()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getString(), since it will
// handle truncating to the max field size if needed.
String string = BinaryConverter.bytesToHexString(getBytes());
return new AS400JDBCClob(string, string.length());
}
public Date getDate(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public double getDouble()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public float getFloat()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public int getInt()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public long getLong()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public Object getObject()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return getBytes();
}
public short getShort()
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return -1;
}
public String getString()
throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return BinaryConverter.bytesToHexString(getBytes());
}
public Time getTime(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public Timestamp getTimestamp(Calendar calendar)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
//@PDA jdbc40
public String getNString() throws SQLException
{
truncated_ = 0; outOfBounds_ = false;
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return BinaryConverter.bytesToHexString(getBytes());
}
/* ifdef JDBC40
//@PDA jdbc40
public RowId getRowId() throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
//@PDA jdbc40
public SQLXML getSQLXML() throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
endif */
public void saveValue() {
savedValue_ = value_;
}
}