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The Open Source version of the IBM Toolbox for Java
///////////////////////////////////////////////////////////////////////////////
//
// JTOpen (IBM Toolbox for Java - OSS version)
//
// Filename: SQLBinary.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.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
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 SQLBinary
extends SQLDataBase
{
static final String copyright = "Copyright (C) 1997-2006 International Business Machines Corporation and others.";
private int maxLength_;
private AS400ByteArray typeConverter_;
private byte[] value_;
SQLBinary(int maxLength, SQLConversionSettings settings)
{
super(settings);
maxLength_ = maxLength;
typeConverter_ = new AS400ByteArray(maxLength);
value_ = new byte[maxLength];
}
public Object clone()
{
return new SQLBinary(maxLength_, settings_);
}
//---------------------------------------------------------//
// //
// CONVERSION TO AND FROM RAW BYTES //
// //
//---------------------------------------------------------//
public void convertFromRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter, boolean ignoreConversionErrors)
throws SQLException
{
value_ = (byte[])typeConverter_.toObject(rawBytes, offset);
}
public void convertToRawBytes(byte[] rawBytes, int offset, ConvTable ccsidConverter)
throws SQLException
{
typeConverter_.toBytes(value_, rawBytes, offset);
}
//---------------------------------------------------------//
// //
// 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)
{
// we throw a data type mismatch exception here because the
// value of the Clob contained characters that were not valid hex
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);
int length = scale; // hack to get the length into the set method
if(length >= 0)
{
InputStream stream = (InputStream)object;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int blockSize = length < AS400JDBCPreparedStatement.LOB_BLOCK_SIZE ? length : AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
byte[] byteBuffer = new byte[blockSize];
try
{
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1 && totalBytesRead < length)
{
baos.write(byteBuffer, 0, bytesRead);
totalBytesRead += bytesRead;
int bytesRemaining = length - totalBytesRead;
if(bytesRemaining < blockSize)
{
blockSize = bytesRemaining;
}
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
value_ = baos.toByteArray();
if(value_.length < length)
{
// a length longer than the stream was specified
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
else if((length == ALL_READER_BYTES) || (length == -1)) //@readerlen new else-if block (read all data)
{
InputStream stream = (InputStream)object;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int blockSize = AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
byte[] byteBuffer = new byte[blockSize];
try
{
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1)
{
baos.write(byteBuffer, 0, bytesRead);
totalBytesRead += bytesRead;
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
value_ = baos.toByteArray();
}
else
{
if (JDTrace.isTraceOn()) {
if (object == null) {
JDTrace.logInformation(this, "Unable to assign null object");
} else {
JDTrace.logInformation(this, "Unable to assign object("+object+") of class("+object.getClass().toString()+")");
}
}
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
else if(object instanceof Reader)
{
// value_ = SQLBinary.stringToBytes(JDUtilities.readerToString((Reader)object, scale));
int length = scale; // hack to get the length into the set method
if(length >= 0)
{
try
{
int blockSize = length < AS400JDBCPreparedStatement.LOB_BLOCK_SIZE ? length : AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
HexReaderInputStream stream = new HexReaderInputStream((Reader)object);
byte[] byteBuffer = new byte[blockSize];
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1 && totalBytesRead < length)
{
baos.write(byteBuffer, 0, bytesRead);
totalBytesRead += bytesRead;
int bytesRemaining = length - totalBytesRead;
if(bytesRemaining < blockSize)
{
blockSize = bytesRemaining;
}
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
value_ = baos.toByteArray();
if(value_.length < length)
{
// a length longer than the stream was specified
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
stream.close(); //@scan1
}
catch(ExtendedIOException eie)
{
// the Reader contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, eie);
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else if((length == ALL_READER_BYTES) || (length == -1)) //@readerlen new else-if block (read all data)
{
try
{
int blockSize = AS400JDBCPreparedStatement.LOB_BLOCK_SIZE;
ByteArrayOutputStream baos = new ByteArrayOutputStream();
HexReaderInputStream stream = new HexReaderInputStream((Reader)object);
byte[] byteBuffer = new byte[blockSize];
int totalBytesRead = 0;
int bytesRead = stream.read(byteBuffer, 0, blockSize);
while(bytesRead > -1)
{
baos.write(byteBuffer, 0, bytesRead);
totalBytesRead += bytesRead;
bytesRead = stream.read(byteBuffer, 0, blockSize);
}
value_ = baos.toByteArray();
stream.close(); //@scan1
}
catch(ExtendedIOException eie)
{
// the Reader contains non-hex characters
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, eie);
}
catch(IOException ie)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, ie);
}
}
else
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
}
}
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)
{
// we throw a data type mismatch exception here because the
// value of the Clob contained characters that were not valid hex
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH, nfe);
}
}
else
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
// Set to the exact length.
int valueLength = value_.length;
if(valueLength < maxLength_)
{
byte[] newValue = new byte[maxLength_];
System.arraycopy(value_, 0, newValue, 0, valueLength);
value_ = newValue;
truncated_ = 0; outOfBounds_ = false;
}
else if(valueLength > maxLength_)
{
byte[] newValue = new byte[maxLength_];
System.arraycopy(value_, 0, newValue, 0, maxLength_);
value_ = newValue;
truncated_ = valueLength - maxLength_;
}
else
truncated_ = 0; outOfBounds_ = false;
}
//---------------------------------------------------------//
// //
// DESCRIPTION OF SQL TYPE //
// //
//---------------------------------------------------------//
public int getSQLType()
{
return SQLData.BINARY;
}
public String getCreateParameters()
{
return AS400JDBCDriver.getResource("MAXLENGTH",null);
}
public int getDisplaySize()
{
return maxLength_;
}
public String getLiteralPrefix()
{
return "BINARY(X\'"; //@5WXVJX changed from x'
}
public String getLiteralSuffix()
{
return "\')"; //@5WXVJX changed from '
}
public String getLocalName()
{
return "BINARY";
}
public int getMaximumPrecision()
{
return 32765;
}
public int getMaximumScale()
{
return 0;
}
public int getMinimumScale()
{
return 0;
}
public int getNativeType()
{
return 912;
}
public int getPrecision()
{
return maxLength_;
}
public int getRadix()
{
return 0;
}
public int getScale()
{
return 0;
}
public int getType()
{
return java.sql.Types.BINARY;
}
public String getTypeName()
{
return "BINARY";
}
public boolean isSigned()
{
return false;
}
public boolean isText()
{
return true;
}
public int getActualSize()
{
return value_.length;
}
public String getJavaClassName()
{
return "[B";
}
public int getTruncated()
{
return truncated_;
}
public boolean getOutOfBounds() {
return outOfBounds_;
}
//---------------------------------------------------------//
// //
// CONVERSIONS TO JAVA TYPES //
// //
//---------------------------------------------------------//
public InputStream getAsciiStream()
throws SQLException
{
// This is written in terms of toBytes(), since it will
// handle truncating to the max field size if needed.
try
{
return new ByteArrayInputStream(ConvTable.getTable(819, null).stringToByteArray(BinaryConverter.bytesToHexString(getBytes())));
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
public BigDecimal getBigDecimal(int scale)
throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
public InputStream getBinaryStream()
throws SQLException
{
// This is written in terms of toBytes(), since it will
// handle truncating to the max field size if needed.
return new ByteArrayInputStream(getBytes());
}
public Blob getBlob()
throws SQLException
{
// This is written in terms of toBytes(), since it will
// handle truncating to the max field size if needed.
return new AS400JDBCBlob(getBytes(), maxLength_);
}
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()
{
// 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
{
// This is written in terms of toBytes(), since it will
// handle truncating to the max field size if needed.
return new StringReader(BinaryConverter.bytesToHexString(getBytes()));
}
public Clob getClob()
throws SQLException
{
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return new AS400JDBCClob(BinaryConverter.bytesToHexString(getBytes()), maxLength_);
}
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
{
// 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
{
// 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;
}
public InputStream getUnicodeStream()
throws SQLException
{
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
try
{
return new ByteArrayInputStream(ConvTable.getTable(13488, null).stringToByteArray(BinaryConverter.bytesToHexString(getBytes())));
}
catch(UnsupportedEncodingException e)
{
JDError.throwSQLException(this, JDError.EXC_INTERNAL, e);
return null;
}
}
//@PDA jdbc40
public Reader getNCharacterStream() throws SQLException
{
// 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()));
}
//@PDA jdbc40
/* ifdef JDBC40
public NClob getNClob() throws SQLException
{
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return new AS400JDBCNClob(BinaryConverter.bytesToHexString(getBytes()), maxLength_);
}
endif */
//@PDA jdbc40
public String getNString() throws SQLException
{
// This is written in terms of getBytes(), since it will
// handle truncating to the max field size if needed.
return BinaryConverter.bytesToHexString(getBytes());
}
//@PDA jdbc40
/* ifdef JDBC40
public RowId getRowId() throws SQLException
{
//Decided this is of no use because rowid is so specific to the dbms internals.
//And there are issues in length and difficulties in converting a binary to a
//valid rowid that is useful.
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
endif */
//@PDA jdbc40
/* ifdef JDBC40
public SQLXML getSQLXML() throws SQLException
{
JDError.throwSQLException(this, JDError.EXC_DATA_TYPE_MISMATCH);
return null;
}
endif */
public void saveValue() {
savedValue_ = value_;
}
}